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TABLE OF CONTENTS TABULATION OF REVISED PAGES .................................................................................................................. 2 TABLE OF CONTENTS ......................................................................................................................................... 3 1.
INTRODUCTION ............................................................................................................................................ 5 1.1.
GENERAL ................................................................................................................................................. 5
1.2.
DEFINITION .............................................................................................................................................. 5
1.3.
ABBREVIATION ........................................................................................................................................ 6
1.4.
SCOPE OF THIS DOCUMENT ....................................................................................................................... 6
1.5.
REFERENCES ............................................................................................................................................ 7
1.5.1.
General Specifications ........................................................................................................................ 7
1.5.2.
Construction Procedures and Specifications ...................................................................................... 7
1.5.3.
Drawings ............................................................................................................................................ 7
2.
SITE DESCRIPTION FOR EXPORT PIPELINE ....................................................................................... 7
3.
CONCRETE MATTRESSES SPECIFICATIONS ..................................................................................... 8
4.
MARINE FLEET ............................................................................................................................................. 9
5.
4.1.
CONSTRUCTION AND INSTALLATION VESSEL ........................................................................................... 9
4.2.
TRANSPORTATION VESSEL ....................................................................................................................... 9
RESPONSIBILITIES OF KEY PERSONNEL .......................................................................................... 10 5.1.
SUPERINTENDENT .................................................................................................................................. 10
5.2.
FIELD ENGINEER ..................................................................................................................................... 10
5.3.
DIVING SUPERINTENDENT ...................................................................................................................... 10
5.4.
SURVEY PARTY CHIEF ........................................................................................................................... 10
5.5.
VESSEL CAPTAIN ................................................................................................................................... 10
6.
MATTRESS FABRICATION ...................................................................................................................... 11
7.
MATTRESS INSTALLATION .................................................................................................................... 11 7.1.
WEATHER CRITERIA .............................................................................................................................. 11
7.2.
SURVEY DEFINITION OF THE CROSSING POINTS ..................................................................................... 11
7.3.
MOBILIZATION ....................................................................................................................................... 11
7.4.
TRANSPORTATION .................................................................................................................................. 12
7.5.
CALIBRATION OF SURVEY EQUIPMENTS ................................................................................................. 12
7.6.
OFFSHORE INSTALLATION SEQUENCE .................................................................................................... 12
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7.6.1.
Locating the Crossing Point ............................................................................................................. 12
7.6.2.
Crossing Point Verification .............................................................................................................. 12
7.6.3.
Transfer the Mattresses to the Deck of Installation Vessel ............................................................... 12
7.6.4.
Installation of Positioning Equipment .............................................................................................. 13
7.6.5.
Installation of Rigging Items ............................................................................................................ 13
7.6.6.
Vessel Positioning On Mattress Installation Coordinates ................................................................ 13
7.6.7.
Lifting and Lowering the Mattress.................................................................................................... 13
7.6.8.
Lead the Mattress to the Exact Coordinates on Seabed ................................................................... 13
7.6.9.
Detach Installation Equipment ......................................................................................................... 13
7.6.10. Continue Installation of Other Mattress ........................................................................................... 14 7.6.11. Perform Final Diver Visual Survey for Crossing Location .............................................................. 14 7.6.12. Preparation of Installation Reports .................................................................................................. 14 7.6.13. Proceed to the Next Crossing Location ............................................................................................ 14 7.7.
INSTALLATION ENGINEERING AND CALCULATION ................................................................................. 14
7.8.
FINAL REPORT ........................................................................................................................................ 15
ATTACHMENT 1: LIST OF CROSSINGS ........................................................................................................ 16 ATTACHMENT 2: MATRRESS DOCUMENTS ............................................................................................... 17 ATTACHMENT 3: GERIMAL SPECIFICATION ............................................................................................ 18 ATTACHMENT 4: CRANE CHART .................................................................................................................. 19 ATTACHMENT 5: DIVING PROCEDURE ....................................................................................................... 20 ATTACHMENT 6: SURVEY QUALITY PLAN ................................................................................................ 21 ATTACHMENT 7: PROJECT TIME SCHEDULE ........................................................................................... 22 ATTACHMENT 8: LIFTING FRAME ARRANGEMENT .............................................................................. 23
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INTRODUCTION
1.1. General Petroiran Development Company (PEDCO) intends to further develop the Foroozan Oil and Gas Fields located in Iranian waters of the Persian Gulf. The Foroozan Field is located in the Persian Gulf, approximately 100km south-west of the Kharg Island. The field straddles the Iran-Saudi Arabia border. The integrated development project foresees the construction of up to 2 new platforms (EPC 1). PEDCO has commissioned IOEC to design and construct the new Foroozan pipeline scope under the EPC 2 contract. IOEC has contracted INTEC Engineering BV for the detailed design of the submarine pipelines, risers and power-Opto cable (functional requirements by EPC 1 contractor Saipem Triune). The new Foroozan pipelines to be installed include:
24" Gas Export Pipeline between the Foroozan Field and Kharg Island
18" Sour Gas Transfer Pipeline between Foroozan production complexes
8" Crude Oil Test Lines to test the production of wells at Wellhead Platforms
4", 6" and 8" Gas Lift pipelines to increase production at Wellhead platforms
One subsea Power-Opto cable is included in EPC2 Scope of Work, within the Foroozan Field from FZ-A to FX.
1.2. Definition IOOC:
Owner - Iranian Offshore Oil Company
PEDCO:
Client - PETROIRAN Development Company
IOEC:
Contractor-Iranian Offshore Engineering and Construction Company
SPEC:
Subcontractor-Subsea Pipeline Engineering Company
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1.3. Abbreviation KP
Kilometer post
DSV
Diving support vessel
DP
Dynamic positioning
LUSBL
Long and Ultra-Short Baseline
SAT
Saturation diving system
1.4. Scope of this document This document presents the requirements for the existing pipeline crossing installation activities for FOROZAN 24” export gas Pipeline. Scope of this document comprises required procedures, calculation, specification and drawings for fabrication, transportation and installation of crossings. The document contains brief description of site in the second part and after that Mattress specification in the third part which has been supported by attachment 2. The marine fleet is addressed in the fourth part and responsibilities of key personnel presented on fifth section. The sixth part is fabrication which has been supported by mattress document presented in attachment 2. Next section is demonstration of operation sequence in offshore. Also, the detail procedure of diving and positioning activities in addition to sketches, specifications and tables are provided in attachments of this document.
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1.5. References 1.5.1.
General Specifications
1. GL Noble Denton – Guidelines for Marine Lifting Operations 1.5.2.
Construction Procedures and Specifications
1. Pipeline Crossing Design Report 1.5.3.
0027/ND Rev9
FE560-0000-PL-RT-1038/D2
Drawings
1. Typical pipeline crossing layout
FE560-0000-PL-DW-1040/D0
2. Pipeline crossing location overview
FE560-0000-PL-DW-1039/D2
3. Route overview in field lines FOROZAN field
FE560-0000-PL-DW-1301/D3
4. Alignment sheet
FE560-GEXP-PL-DW-1301
5. Crossing support arrangement
FE560-0000-PL-DW-1657/D0
Note: All basic references subject to be provided or updated by contractor. Consequently, this procedure may have major changes in upcoming revisions.
2.
SITE DESCRIPTION FOR EXPORT PIPELINE Offshore site where installation work is to be carried out is Foroozan field, located 100 Km farther of Kharg Island. 24" Gas Export Pipeline between the Foroozan Field and Kharg Island will cross existing pipe lines and cables in abut 11 points, the approximate water depth range is from 0 to 55 meters.
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CONCRETE MATTRESSES SPECIFICATIONS FOROZAN pipeline crossing will be carried out by using the concrete mattresses, which will be supplied by SPEC, manufactured by ULO. Mattresses are fabricated in two types of side lift flexible, based on concrete mix table (attachment 2). One of them equipped with rubber and will be in direct contact with pipelines. The other type will be placed on top of the first type and will not be in direct contact with pipe line. Concrete density is 2400 kg/m3, class 40. Ropes are 16mm polypropylene UV resistance for lateral in addition to 20mm for longitudinal, and lifting. The dimension of the mattresses is 6m by 4m as shown in below sketch and total weight is 10.9 ton in air and 6.2 ton in water. The mattresses drawings are presented in attachment 2.
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MARINE FLEET
4.1. Construction and Installation Vessel GERIMAL (Attachment 3) a DP-2 diving Support vessel has been nominated as installation vessel. The vessel has been equipped with a HITACHI KH230 built in crane with 40 tons lifting capacity and another KOBELCO CKE1350 mobile crane with 135 tons lifting capacity (Attachment 4). Also, SAT diving equipment to support operation during 24 hours is ready to use on board of GERIMAL. In addition to all above equipments, a small fabrication workshop will be mobilized to support minor fabrication activities. This vessel has enough deck space and accommodation to support operation.
4.2. Transportation Vessel Considering design limitation and availability of vessels on market, subcontractor will use a suitable vessel to deliver the mattresses to installation site.
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RESPONSIBILITIES OF KEY PERSONNEL
5.1. Superintendent The superintendent is responsible for all installation operations; therefore, he will review and note all installation documents and shall perform the job accordingly. Any probable issue with respect to engineering has to be checked by field engineer and will be sorted out by assistance of the superintendent.
5.2. Field engineer The Field engineer is overall responsible for monitoring mattress installation activities in accordance with engineering procedures, specification and construction drawings. The field engineer should supervise all installation jobs and issue the reports.
5.3. Diving Superintendent The Diving Superintendent qualified & certified for all diving jobs, shall supervise the diving activities and endorse the reports which are prepared by diving team. The diving safety procedure shall exactly be followed by him according to the international codes and standards.
5.4. Survey Party Chief As the leader of the surveying team, the party chief is responsible for all survey activities. Also, He is responsible for final reports preparation. Party chief will manage survey activities in corporation with captain and superintendent.
5.5. Vessel Captain According to the marine rules and regulations the vessel Captain is generally responsible for the all activities which is going to be performed onboard of vessel. He is responsible through all personnel lives; therefore, he will be informed about every activity in general on daily basis and in a short brief meeting. Also the captain notifies the project coordinator all requirement of the vessel to be prepared.
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MATTRESS FABRICATION All mattresses will be fabricated by ULO, complete information about the fabrication is provided in Attachment 2
7.
MATTRESS INSTALLATION Upon completion of the documentation, mobilization of the installation vessel, the installation vessel shall move into the field, meanwhile transportation of the mattresses shall be arranged. The installation of mattresses will be carried out by assistance of the positioning and the diving teams. The general procedures of each discipline are presented separately in attachment 5 for diving and 6 for positioning.
7.1.
Weather Criteria The lifting and lowering operation has to be performed in safe condition. Considering the vessel, diving and crane limitations, superintendent or his deputy are responsible to make assessment regarding sea state and start of the operation in safe condition. During whole operation, the weather forecast reports shall be provided to Installation Vessel and Project Team by MET Marine Forecast.
7.2.
Survey Definition of the Crossing Points The location of the crossing points are as shown in the Attachment.1 with the defined coordinates in reference (to be provided by contractor) prepared by (to be provided by contractor). Diver will check the location of each crossing point and existing pipelines to verify the information provided by client. In case of any nonconformity diver will try to find the pipeline within a range of 20 meter. The new data will be sent to positioning team on surface enabling them to prepare corrective report and after obtaining approval of the new point by contractor, new coordinates will be applied to continue the operation.
7.3. Mobilization Based on the presented Project Time Schedule (attachment 7), SPEC will mobilize the DSV DP2 GERIMAL in Port KHALID, SHARJAH, UAE. The diving, positioning, and marine crew will join the vessel during mobilization. All equipment fabrication, equipment tests and trial operations will be carried out alongside the jetty and during this period.
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7.4. Transportation As part of the project scope of work, subcontractor will mobilize the transportation vessel and load mattresses on it based on fabricator instruction. Mattresses will be delivered to installation site prior to start of the operation.
7.5. Calibration of survey equipments Prior to installation operation the positioning team will carry out calibration operation for their equipment. The detail information for this part of the project is provided in attachment 6
7.6. Offshore Installation Sequence Consequently, and upon completion of preparatory works and contractor permission for sail out, vessel will sail to the offshore site. The installation sequence demonstrates the main activities of the target operation and the relations between each activity. The general procedures of diving and positioning activities are attached to this document. The sequences of work when the vessel at location shall be as follows:
7.6.1.
Locating the Crossing Point
As the first step of installation activity, and based on positioning team instruction, the vessel takes position on top of the crossing point defined and provided by the client. 7.6.2.
Crossing Point Verification
After positioning the vessel on top of the crossing point, diver will check the exact position of existing pipe line by using beacon and assist of sector scan sonar. If diver couldn’t find the existing pipe or cable a visual survey will carry out in the range of 20 meter. This data will be sent to the surface and positioning team compares it with client data. In case of any nonconformity the operation will be held on standby for client instruction. During the verification, positioning team will record two coordinates on pipeline and use these coordinates as reference to recheck the position of pipeline. 7.6.3.
Transfer the Mattresses to the Deck of Installation Vessel
After verification of the crossing final coordinate the installation vessel will go along side of transportation vessel and by using on board cranes transfers mattresses to installation vessel deck. It should be noted that the first mattress must have rubber to prevent any damage to pipeline
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Installation of Positioning Equipment
The positioning equipment will set up on a lifting frame prior to the lifting. This equipment contains two compatts in each side of the frame. By using these two compatts surveyors will be able to locate the exact coordinate of crossing point and match it with the proposed coordinate. 7.6.5.
Installation of Rigging Items
Riggers will install the mattress lifting frame by connecting the side lifting ropes to the frame and secure the pins. On the other side the frame will be connected to the crane hook with 4 wire slings and will be prepared for lifting. The arrangement is shown in attachment 8 7.6.6.
Vessel Positioning On Mattress Installation Coordinates
Positioning team will lead vessel to the coordinates, which has been adjusted according to crane geometry on the vessel and sea bed position of the crossing. In this way when the vessel stands on this position, the mattress will be lowered down directly to the final installation position. 7.6.7.
Lifting and Lowering the Mattress
After confirmation of the vessel position by surveyors, lifting operation will start under supervision of the superintendent. In this part the mattress will lift off from deck and smoothly guided to the lowering position. Mattress will lower down to the sea bed up to 1.5 meter above the sea bed. The surveying team will assist superintendent, using sector scan sonar and LUSBL to monitor lowering operation real time. This device will show the relative position of the support and the existing pipe line. Meanwhile diver will monitor the arrival of mattress on sea bed and assist superintendent to start the next level of operation. 7.6.8.
Lead the Mattress to the Exact Coordinates on Seabed
In this stage diver will adjust mattress position and orientation with instructions he receives from the superintendent and the surveyor on surface. Again LUSBL system gives the exact coordinates and sector scan sonar visually shows the situation. After final check and confirmation of the position by surveyors, support will lower down to the sea bed. 7.6.9.
Detach Installation Equipment
By completion of the previous stage of operation the load will be released from crane and diver proceed to detach mattress from the frame. Also, the positioning equipment will be released and recovered to the surface.
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7.6.10. Continue Installation of Other Mattress
Considering the fact that most crossing location consist more than one mattress, the above operation has to be repeated for each support. 7.6.11. Perform Final Diver Visual Survey for Crossing Location
The final visual check after completion of installation will be performed to prepare a video report. 7.6.12. Preparation of Installation Reports
Different types of reports will be prepared during installation, detail information of each report provided in attached procedures. These reports comprise daily progress, activity completion or data confirmation. 7.6.13. Proceed to the Next Crossing Location
After completion of the surveys and approval of the installation condition by client, the installation vessel will shift to the next crossing location. Obviously above steps will be repeated until the whole project scope of work accomplished satisfactorily.
7.7. Installation Engineering and Calculation Engineering calculation carried out to select proper rigging and crane. These calculations are in accordance with reference 1.5.1.1. Below table shows the results of lifting calculation
Sling Design Net Weight above water Net Weight under water Rigging weight Static Hook Load Dynamic Amplification Factor Dynamic Hook Load no. of slings Skew load factor Sling Angle Sling Vertical Load Sling Load Safety Factor Termination Efficiency Factor Bending Efficiency Factor Wire Rope MBL Sling Unity Check
Unit 10.9 6.2 2.2 13.1 1.3 17.03 4 1.25 1.047198 4.2575 10.64375 2.25 0.5 1 92 0.130155
ton ton ton ton
rad ton ton ton -
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These calculations are based on rigging presented in attachment 8 and using1.5 inch wire slings. In addition to above calculation the calculation regarding the mattress rope verification is provided in attachment 2. According to installation vessel and position of the crane maximum required radius for lifting operation is not more than 16 meter. On the other hand the maximum expected load of the mattress is 13.4 tons. Consequently, as the crane chart shows (Attachment 4) the crane is suitable to handle this load.
7.8. Final report After completion of project a complete report will be prepared based on client request. This report contains all documents, DPRs, completion reports, drawings, survey reports, etc.
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Attachment 1: CROSSINGS LIST AND ARRANGEMENTS (To be clarified by CONTRACTOR)
Sheet NO. Page 16 of 23
Crossing
Client Supplied Crossing Details -24"FZA-KHARG Pipeline/cable ID Quantity support No.
Support Type
KP
Support Coordinates Easting ioec Northin ioec
Easting ioec
Easting hsc
Crossing Coordinates difference Northin ioec
Northin hsc
difference
Support Angles to Route to North Grid
FE-C01
Unknown
4+4
FE-S01
A
7.690
424921.52
3232569.47
424918.86
424957.00
-38.14
3232565.29
3232561.00
4.29
33.00
82.00
FE-C02
KHARG to LAVAN,SIRI cable
1+1
FE-S02
A/Neoprene
8.705
424372.42
3231718.20
424372.42
424372.00
0.42
3231718.20
3231718.00
0.20
33.00
93.00
FE-C03
Terminal AC2882/Oil pipeline ARDESHIR to DARIUS
1+1
FE-S03
A/Neoprene
18.957
418814.96
3223103.16
418814.96
418815.00
-0.04
3223103.16
3223104.00
-0.84
33.00
68.00
FE-C04
Falcon-S07a-RPL-PL06-Abridged
1+1
FE-S04
A/Neoprene
69.113
391626.85
3180956.18
391626.85
391627.00
-0.15
3180956.18
3180957.00
-0.82
33.00
73.00
FE-C05
FOG cable
1+1
FE-S05
A/Neoprene
73.880
389042.86
3176950.49
389042.86
389043.00
-0.14
3176950.49
3176950.00
0.49
33.00
69.00
FE-C06
Falcon-S06b-RPL-PL01-Abridged
1+1
FE-S06
A/Neoprene
74.827
388529.03
3176153.95
388529.03
388529.00
0.03
3176153.95
3176154.00
-0.05
33.00
71.00
1
FE-S07
A/Neoprene
96.804
376609.94
3157672.59
24.00
66.00
1
FE-S08
A/Neoprene
96.804
376613.94
3157681.76
24.00
66.00
FE-C07
FE-C08
FE-C09
FE-C10
FE-C11
Sub sea Cable for LAVAN,SIRI,KHARG and BAHREGAN District
Sub sea Cable for LAVAN,SIRI,KHARG and BAHREGAN District
376615.94
376616.00
-0.06
3157686.34
3157686.00
0.34
1
FE-S09
A/Neoprene
96.804
376617.94
3157690.92
25.00
69.00
1
FE-S10
A/Neoprene
96.804
376622.20
3157699.95
25.00
69.00
1
FE-S11
A/Neoprene
100.513
375075.20
3154330.30
34.00
56.00
1
FE-S12
A/Neoprene
100.513
375081.31
3154339.46
34.00
56.00
1
FE-S13
A/Neoprene
100.513
375087.42
3154348.63
34.00
56.00
1
FE-S14
A/Neoprene
101.010
374850.37
3153883.41
21.00
67.00
1
FE-S15
A/Neoprene
101.010
374854.30
3153892.61
21.00
67.00
375081.31
374856.34
16" product flow line F-17 to FZ
375081.31
374859.00
-2.66
3154339.46
3153897.80
3154339.46
3153902.00
-4.20
1
FE-S16
A/Neoprene
101.010
374858.38
3153902.99
21.00
67.00
1
FE-S17
A/Neoprene
101.010
374862.01
3153912.24
21.00
67.00
1
FE-S18
A/Neoprene
101.802
374557.73
3153154.64
67.00
25.00
1
FE-S19
A/Neoprene
101.802
374561.20
3153162.94
67.00
25.00
374563.05
16" product flow line F-17 to FZ
374563.00
0.05
3153167.03
3153169.00
-1.97
1
FE-S20
A/Neoprene
101.802
374564.67
3153171.25
67.00
25.00
1
FE-S21
A/Neoprene
101.802
374568.14
3153179.55
67.00
25.00
3+3
FE-S22
B
101.960
374523.84
3152924.33 374530.48
374531.00
-0.52
3152966.87
3152971.00
-4.13
N.I.O.C
N.I.O.C
N.I.O.C
N.I.O.C
N.I.O.C
N.I.O.C
N.I.O.C
N.I.O.C
N.I.O.C
N.I.O.C
N.I.O.C
FE-C11
3+3
FE-S23
B
101.960
374227.75
3152949.70
4+4
FE-S24
A
101.960
374532.64
3152980.55
374530.48
374531.00
-0.52
3152966.87
3152971.00
-4.13
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Attachment 2: MATRRESS DOCUMENTS
Sheet NO. Page 17 of 23
QUALITY RECORD 2 PROJECT
SPEC Ship Management Concrete Mattresses
LOCATION
Hamriyah Free Zone, Sharjah, UAE
QR2 Job No. 0029-05-2010-B
IGO SUPERVISOR Simon Jones
FLXMAT CAST __________________m Serial Numbers FLXMAT CAST __________________m Serial Numbers
CONCRETE DELIVERY LOG BATCH #
TRUCK ID
DOCKET #
VOL
FLXMAT STARTED
FLXMAT COMPLETE
DATE
TEST CUBE REF
ENTER TEST CUBE No. only when test cubes are made of the batch of concrete delivered This document shall be completed by the onsite Supervisor during the fabrication for each type of FLXMAT listed within the SOW F-79
QUALITY RECORD 1 PROJECT
SPEC Ship Management Concrete Mattresses
LOCATION
Hamriyah Free Zone, Sharjah, UAE
IGO SUPERVISOR
Simon Jones
QR1
Job No. 0029-05-2010-B DATE MATTRESS SIZE 6x4x0.3m
PREPARATION AND SITE INDUCTION Item
Prestart Activities
Check
1.
New employees (if any) inducted?
2.
Review with staff of latest mattress drawing to be assembled?
3.
Reviewed currently location on working ITP to ensure work can commence?
4.
Stock numbers checked and enough material to complete scope?
5.
Daily toolbox and safety meeting
MANUFACTURING CHECK Item
Assembly Activities
1.
Clips placed in correct locations (Base).
2.
Check correct length/width (Base).
3.
Install long. Ropes and check correct rope Ø.
4.
Install Lat. Ropes and check correct rope Ø.
5.
Fix top shell, check positive connection with all clips to upper shell.
6.
Set lifting rope length as per design specification.
7. 8. 9. 10. Item 11. 12. 13. 14. 15.
FLXMAT SERIAL NUMBER
Splices are correct and within centre of mattress and shell. Recheck all clips and screw any broken or insufficient clips. Lay mattress on PVC sheet checking ground for loose debris. Clearly mark mattress according to Execution Plan. Casting Activities Check concrete truck docket and note truck number discharged into mattress. Fill each shell with concrete and vibrate carefully. Trowel tops off neatly and wash down all blocks with water including lifting ropes. Check FLXMAT shells for any openings or excessive distortion. Leave mattress to cure for 3 days prior to stacking or relocating This document shall be completed by the onsite Supervisor during the fabrication for each type of FLXMAT listed within the SOW F-80
Lifting & Placing Frame ULO No : LPF 009, LPF 011, LPF 012, LPF 013
Capacity (SWL) : 25 Tons Self Weight : 2.0 tons O’All Dimensions : 6020 W x 3000 / 2000 D x 1040 H
©, ULO Systems LLC, 1 June 2001
Working Dimensions are shown in Millimetres – as required ON DECK POWER NIL
WATER NIL
AIR NIL
ULO Policy on Testing Equipment and certified by 3rd party Load Test to 2.5 times SWL at New Fabrication Visual Inspection: Every 12 months Lifting Slings & Wire Rope as per DAC 2006. LOLER 1998 and article (20) decree32, 1982 Non Destructive Test at New Fabrication Visual Inspection : Every 6 months
This photograph is indicative of the equipment for the above description but ULO Systems LLC reserve the right to make any alterations deemed necessary.
Page 1 of 4
PROJECT QUALITY PLAN W = WITNESS (Notification Required) I = INSPECT A = APPROVAL H = HOLD POINT R = REVIEW OF DOCUMENT M = MONITOR
PROJECT INSPECTION AND TEST PLAN QUALITY ASSURANCE SYSTEM
PROJECT
SPEC Ship Management Concrete Mattresses
SCOPE
Prepared By: Jackson Dryne
30No. 6x4x0.3m Concrete Mattress (Standard) 23No. 6x4x0.3m Concrete Mattress with Rubber base
Signed: Date: Approved By: Harvey Lee
PURCHASE ORDER NO:
10205PO-01
Signed: Client Approval By:
ITP No.:
FLX-ITP-0029-05-2010-B - REVA
Signed:
ITEM No. 1.0
INSPECTION ACTIVITY
PREP’D BY
ACCEPTANCE CRITERIA
Date: Date:
DOCUMENT/ RECORD FORM
CLIENT = SPEC Ship Management SSM IGO = International Grout Operations INC SS = Onsite Supervisor Eng = Project Engineer Mgmt = Project Management
COMMENT
INSPECTION SURVEILLANCE CODE IGO Client Asset
PRE-EXECUTION ACTIVITIES W = WITNESS, I = INSPECT, H = HOLD POINT, R = REVIEW OF DOCUMENT, M = MONITOR Mattress Construction Drawings
1.1
0029-05-2010B-DWG-071110-01-REVA (No rubber) 0029-05-2010B-DWG-071110-01-REVC (Inc rubber)
IGO Eng
Client Approval
1.2
Lift Rope Verification
IGO Eng
Client Approval
FLX-ENG-LIFT
1.3
Execution Plan
IGO Mgmt
Client Approval
1.4
Rope Certification
IGO Mgmt
1.5
Concrete Mix Design
IGO Mgmt
F-064-D
S = SAMPLE REQUIRED
H
R, A
H
R, A
FLX-EP-0029-052010-B
H
R, A
Item 1.2 ITP DNV Pt 2, Ct 5
Vendor Supplied Certification
H
R, A
Client Approval
Vendor Supplied Report
H
R
Calculation in accordance to DNV Pt 2, Ct 5
A
Page 2 of 4
PROJECT QUALITY PLAN ITEM No. 2.0
INSPECTION ACTIVITY
Supervisor reviews all documents within Section 1.0 of ITP with Project Manager.
2.2
Check component stock and ensure sufficient quantities are onsite in order to complete scope of work
2.3
Select suitable FLXMAT assembly and casting area
2.4
Completion of Personnel Site Induction including Tool Box Safety Meeting
3.1 3.2 3.3 3.4 3.5
DOCUMENT/ RECORD FORM
INSPECTION SURVEILLANCE CODE IGO Client
COMMENT
SITE ESTABLISHMENT W = WITNESS, I = INSPECT, H = HOLD POINT, R = REVIEW OF DOCUMENT, M = MONITOR
2.1
3.0
BY
ACCEPTANCE CRITERIA
IGO SS IGO SS/ MGMT IGO SS
Section 1.0 ITP all approved
IGO SS
Execution Plan
ITP, DPR DPR
Section 4.2 Execution Plan
Rope ends are terminated using an open splice toward the centre of the mattress and shell. If design includes edge lift ropes then these should be installed as per instruction noted on mattress construction drawing.
Record stock levels within DPR
I I
DPR
FLXMAT ASSEMBLY W = WITNESS, I = INSPECT, H = HOLD POINT, R = REVIEW OF DOCUMENT, M = MONITOR FLXMAT shells are laid out and clipped together. The Mat Dwg, QR1 bottom half of the mattress is clipped together until the IGO SS Execution Plan length and width match that of the construction drawing. Mat Dwg, QR1 Lateral and longitudinal ropes are pre-cut. IGO SS Execution Plan Lateral and longitudinal ropes are installed throughout the bottom half of the clipped mattress.
R
M
I, A
R
I, A
M
IGO SS
Mat Dwg, Execution Plan
QR1
I, A
M
IGO SS
Mat Dwg, Execution Plan
QR1
I, A
M
IGO SS
Mat Dwg, Execution Plan
QR1
I, A
M
3.6
Lifting ropes are set to designed length.
IGO SS
Mat Dwg, Execution Plan
QR1
I, A
M
3.7
Top shell is fixed to the bottom shell creating complete block.
IGO SS
Mat Dwg, Execution Plan
QR1
I, A
M
3.8
Mattresses are relocated to casting area and positioned on polythene sheets. Remaining QR1 checks are complete.
IGO SS
I, A
M
F-064-D
Page 3 of 4
PROJECT QUALITY PLAN ITEM No. 3.9 4.0
INSPECTION ACTIVITY Mattress is clearly marked according to Section 5.4 of Execution Plan
BY
IGO SS
ACCEPTANCE CRITERIA Section 5.4 of Execution Plan
DOCUMENT/ RECORD FORM QR1
INSPECTION SURVEILLANCE CODE IGO Client
COMMENT
I, A
M
Concrete delivery docket, QR2
I, A
M
QR2
M
M
Vendor Supplied Report
M
M
QR2
I, M
M
FLXMAT CASTING W = WITNESS, I = INSPECT, H = HOLD POINT, R = REVIEW OF DOCUMENT, M = MONITOR
4.1
Concrete delivery to site in mixer trucks. Check, approve and collect delivery receipt.
IGO SS
4.2
Discharge concrete and fill mattresses. Record mattress serial number each truck commences and finishes on.
IGO SS
Section 4.4 of Execution Plan
4.3
Cubes are made at concrete batching plant (6 No. per truck) and crushed at 7 & 28 day (3 No. per test).
3rd Party
Section 5.2 of Execution Plan, ASTM C109, BS 1881 Part 108 1983
4.3
Cast blocks, screed off top and wash down to complete fabrication. Check FLXMAT shells for any openings or excessive distortion.
IGO SS
Section 4.4 of Execution Plan
4.4
Confirm Number of Cast Mattress – Daily activity
IGO SS
DPR
I, M
M
4.5
Record of Daily progress onsite including man hours and any lost hours activities, accidents or industrial dispute.
IGO SS
DPR
M
M
5.0
FLXMAT STORAGE AND HANDLING W = WITNESS, I = INSPECT, H = HOLD POINT, R = REVIEW OF DOCUMENT, M = MONITOR
5.1
3 Days curing of mattresses
IGO SS
Section 4.5 of Execution Plan
M
5.2
Stacking of mattress using correct SWL handling frame and rigging equipment
IGO Eng
Section 4.5 of Execution Plan
I
5.3
Mattresses should be stored in a shaded/covered area for long periods (greater than 3months).
IGO Mgmt
Section 4.5 of Execution Plan
M
F-064-D
Page 4 of 4
PROJECT QUALITY PLAN ITEM No. 6.0
INSPECTION ACTIVITY
BY
ACCEPTANCE CRITERIA
COMMENT
INSPECTION SURVEILLANCE CODE IGO Client
INSTALLATION FRAME ACTIVITIES W = WITNESS, I = INSPECT, H = HOLD POINT, R = REVIEW OF DOCUMENT, M = MONITOR
6.1
Mattress Rigging and Installation Procedure
IGO Eng
Client Approval
6.2
Installation Frame inc Mattress drawing
IGO Eng
Client Approval
6.3
Installation Frame and Rigging certification documents
IGO Mgmt, 3rd Party
6.3
Submission of MRB (Manufacturer Record Book)
IGO Mgmt
7.0
DOCUMENT/ RECORD FORM
FLX-IP-0029-052010-B
M
R, A
M
R, A
Client Approval
Frame and rigging certification witnessed by 3rd party
M
R, A
Section 7.0 of Execution Plan
MRB
M
A
POST EXECUTION ACTIVITIES W = WITNESS, I = INSPECT, H = HOLD POINT, R = REVIEW OF DOCUMENT, M = MONITOR
7.1
Delivery Mattresses to Client
IGO Mgmt
Purchase Agreement
Delivery Docket
M
M
7.2
Submission of MRB (Manufacturer Record Book)
IGO Mgmt
Section 7.0 of Execution Plan
MRB
M
A
F-064-D
Document No: FLX-EP-0029-05-2010-B
Document Title:
Precast Concrete Mattress EXECUTION PLAN
A
22/11/10
Issued for client approval
JD
HL
REV
DATE
DESCRIPTION
BY
CHK
CLIENT APP
Execution Plan TABLE OF CONTENTS 1.0 INTRODUCTION ..........................................................................................................................2 2.0 REFERENCES ................................................................................................................................2 2.1 APPLICABLE CODES AND STANDARDS .............................................................................................................................. 2 2.2 INTERNAL QA/QC DOCUMENTS ............................................................................................................................................ 3 2.3 PROJECT SPECIFIC ENGINEERING DOCUMENTS ......................................................................................................... 3 2.4 EXTERNAL CERTIFICATION AND DOCUMENTATION ............................................................................................... 3
3.0 SCOPE OF WORKS ........................................................................................................................4 4.0 FLXMAT MANUFACTURE ACTIVITIES ...................................................................................4 4.1 PRE-EXECUTION ACTIVITES .................................................................................................................................................... 4 4.2 SITE ESTABLISHMENT.................................................................................................................................................................. 5 4.3 FLXMAT ASSEMBLY ....................................................................................................................................................................... 5 4.4 FLXMAT CASTING .......................................................................................................................................................................... 7 4.5 FLXMAT STORAGE AND HANDLING ................................................................................................................................... 8 4.6 ONSITE SAFETY REQUIREMENTS .......................................................................................................................................... 8
5.0 FLXMAT QA/QC ACTIVITIES.....................................................................................................8 5.1 FLXMAT QUALITY PROCEDURE ............................................................................................................................................. 8 5.2 FLXMAT CONCRETE TESTING................................................................................................................................................. 9 5.3 FLXMAT MARKING PROCEDURE ........................................................................................................................................... 9
6.0 INSPECTION AND REPAIR PROCEDURE ............................................................................ 10 7.0 FLXMAT DELIVERABLES ......................................................................................................... 10
Page: 1
Execution Plan 1.0 INTRODUCTION The purpose of this document is to provide International Grout Operations with a suitable procedure to cover all necessary standards, specifications and methodologies required to successfully manufacture FLXMAT (pre-cast concrete mattress) to client specification. 2.0 REFERENCES 2.1 APPLICABLE CODES AND STANDARDS FLXMAT may be used to provide support or stabilisation to the subsea pipelines or other locations or instances described in the project specific scope of work. The necessary standards to be used in conjunction with the fabrication of the mattresses are given below: Code or Standard
Title
Remark
BS 1881 Pt 108
Methods for Testing Concrete Method of Making Test Cubes from Fresh Concrete
Followed by CONMIX LTD
BS 1881 Pt 111
BS 1881 Pt 116 BS 4027 BS 5328 ASTM C33 ASTM C39 ASTM C150
Page: 2
Methods for Testing Concrete Method of Normal Curing of Test Specimens (20ºC Method) Methods for Testing Concrete Method for Determination of the Compressive Strength of Concrete Cubes Specification for Sulphate Resisting Portland Cement Methods for Specifying concrete including Ready Mixed Concrete
Followed by CONMIX LTD
Followed by CONMIX LTD Followed by CONMIX LTD Followed by CONMIX LTD
Specification for Concrete Aggregates Test Method for Compressive Strength of Cylindrical Concrete Specimens
Followed by CONMIX LTD
Specification for Portland Cement
Followed by CONMIX LTD
Followed by CONMIX LTD
Execution Plan 2.2 INTERNAL QA/QC DOCUMENTS Quality Assurance is overseen on site by an experienced International Grout Operations representative throughout the duration of the project. The Supervisor will ensure the correct Quality Checks have been made to each individual mattress guaranteeing the final product matches client request stated within the purchase agreement. IGO Documentation IGO DPR IGO ITP
IGO QAQC Plan
Description
Remark
Daily Progress Report
Daily event recordings onsite
Inspection Test Plan – Project Specific QR1 – Quality Report 1 (Assembly checklist) QR2 – Quality Report 2 (Casting checklist)
2.3 PROJECT SPECIFIC ENGINEERING DOCUMENTS FLXMAT Engineering is conducted in house using International Grout Operations Engineers. Mattress design and Engineering is always complete and agreed with client prior to construction commencement. The following documentation refers to client requested specific engineering requirements. IGO Documentation FLXMAT Construction Drawings - 0029-05-2010BDWG-071110-01REVA (No rubber) - 0029-05-2010BDWG-071110-01REVC (Inc rubber) IGO Lift Rope Verification FLX LIFT
Description
Remark
Approved FLXMAT drawing for construction
Construction does not commence until client has approved final design. See ITP for more details
Calculation to verify lifting point conform to DNV Rules for Planning and Execution of Marine Operations (1996) – Part 2 Ch 5/6
2.4 EXTERNAL CERTIFICATION AND DOCUMENTATION FLXMAT is made from 3 main components (HDPE Mould, PP Rope and Concrete). Rope Mill Test Certification is very important so that International Grout Operations Engineers can verify the correct rope has been used according to DNV Pt2, Ch5. Polypropylene Rope is purchased specifically for each project from an approved vendor. Similarly, concrete is purchased and delivered onsite by preferred supplier. Delivery dockets are collect by the supervisor and recorded. Concrete compressive strength tests are conducted at vendor’s laboratory. Final results from laboratory tests are sent to International Grout Operations and filled accordingly. The following summarises relevant external documents
Page: 3
Execution Plan Document Polypropylene Mill Test Certificate
Concrete Mix Design
Concrete Delivery Dockets Compressive Strength Tests
Description
Remark
Certificate that proves a specific rope diameter Minimum Breaking Load (MBL) 1 page document that includes all relevant properties including strength, type of cement, slump aggregate size etc..
Required to ensure FLXMAT lifting rope conform to DNV Pt2, Ch5
Delivery receipt to confirm grade and volume of concrete entering site. A test conducted whereby sampled cylinders are cast and crushed at certain period of curing.
Mix design is required to be pre-approved by client prior to commencement of FLXMAT casting.
See Section 2.1 for applicable codes and standards for testing.
3.0 SCOPE OF WORKS The following table represents the physical requirements for each type of FLXMAT to be constructed. FLXMAT Qty
End/Side Lift
Long. Rope Ø
Lat. Rope Ø
Concrete Mix
6x4x0.5m
30
END
22mm
16mm
C13DNS
5x3x0.3m
23
SIDE
16mm
16mm
C13DNS
Drawing Ref 0029-05-2010BDWG-071110-01REVA 0029-05-2010BDWG-071110-01REVC
4.0 FLXMAT MANUFACTURE ACTIVITIES 4.1 PRE-EXECUTION ACTIVITES Prior to the execution program the final design and price is agreed upon and a purchase order is received by International Grout Operations outlining a date for completion or mattress delivery. The project manager will then organise freight of components (if necessary) schedule a starting date. An experienced supervisor is nominated and sent to location for site establishment. Work will continue to finalise all relevant documentation necessary to commence work according to International Grout Operations quality procedure.
Page: 4
Execution Plan 4.2 SITE ESTABLISHMENT Upon the supervisor arriving to site a project brief is given from the project manager outlining the scope of works. All approved documentation is given to the supervisor in order to commence the fabrication according to this Execution Plan. The supervisor will firstly check all stock numbers of shells, clips and rope to ensure there are enough quantities of each to complete the order. If the quantities are incorrect the Supervisor will alert the Project Manager immediately to rectify the situation. The supervisor should have the following items in mind when initially setting up site. Suitable area for FLXMAT Assembly o Select shaded or enclosed area if possible (avoids heat exhaustion) o Select high ground is possible (avoids potential flooding, which is uncomfortable to staff) o Enable forklift entrance/exit if possible (reduces heavy man handling of objects) Suitable area for FLXMAT Casting o Fall of land when considering flooding (water must run away from work area) o Monitor unsettled dust during windy conditions (risk of eye injury to staff) o Avoid any rocky outcrop or remove if possible (reduces the risk of trip hazards) o Sufficient room for concrete trucks entering/exiting site (traffic management and safety) 4.3 FLXMAT ASSEMBLY Following points refer to assembling each mattress up until casting.
1. FLXMAT shells are laid out and clipped together either on ground level or on specially built clipping tables.
2. The bottom half of the mattress is clipped together until the length and width match that of the construction drawing.
Page: 5
Execution Plan
3. Lateral and longitudinal ropes are pre-cut to determined length as noted on the construction drawing. 4. Lateral and longitudinal ropes are installed throughout the bottom half of the clipped mattress according the roping detail shown on construction drawing.
5. Lifting ropes are set to designed length as per construction drawing. Perimeter top shells are fastened first in order to contain rope lattice. 6. Rope ends are terminated using an open splice which should always be positioned toward the centre of the mattress and centre of shell. If design includes edge lift ropes then these should be installed as per instruction noted on mattress construction drawing.
7. Once all longitudinal and lateral ropes are tight remaining central blocks are clipped together to complete the mattress. Shells must be positioned carefully to locate each clip’s top half ensuring a positive connection.
8. The mattress is then lifted and relocated to the casting area via folk lift or a team of men. The mattress is carefully positioned on polythene sheet. The newly laid mattress is inspected and undergoes QR1 (Quality Record 1). QR1 is a set of quality checks required to be carried out prior to casting each mattress. On approval of QR1 the assembled mattress is clearly marked according to Section 5.4.
Page: 6
Execution Plan 4.4 FLXMAT CASTING 1. Concrete is ordered by Supervisor ensuring the correct mix design is conveyed to the nominated vendor. The quantity is calculated based on the number of empty mattresses anticipated to be cast. 2. The concreting team prepare the initial casting location with shovels, trowels, vibrators, wheelbarrows, shadow boards and buckets. 3. The concrete truck is directed to drive alongside the assembled mattresses with chute full extended to aid filling distant blocks. The shadow boards mask all areas not requiring concrete guiding flow directly into each block.
4. Each mattress block is vibrated until full and no additional settlement is noticed. 5. Shadow boards are continually relocated as the process moves forward allowing the finishing team to trowel off the newly filled mattress and wash down any excess concrete. Lifting rope shall be washed free of any concrete spillage. 6. The mattress should be allowed to cure for a minimum of 3 days prior to lifting or confirmation of min. 14 MPa strength.
Page: 7
Execution Plan 4.5 FLXMAT STORAGE AND HANDLING 1. Mattresses are only lifted with a suitable lifting frame of known capacity. Prior to lifting the supervisor will check with International Grout Operations Engineering that nominated frame and rigging is suitable to lift cured mattresses. 4.6 ONSITE SAFETY REQUIREMENTS All personnel shall attend any required site induction program to become familiar with the site and client method of operation. Personnel shall comply with all client rules and regulations. Company equipment includes a comprehensive first aid kit. Personnel will be briefed during the initial site induction on the hazards of manufacturing FLXMAT and handling cement products. The IGO supervisor will be responsible for site safety and conduct regular toolbox meetings with all personnel The following PPE (Personal Protective Equipment) is required for the 3 Manufacturing activities outlined above. Manufacturing Activity FLXMAT Assembly FLXMAT Casting FLXMAT Handling
Minimum PPE Requirement
Optional
Covered steel capped boots, coveralls and sun protection. Covered steel capped boots, eye protection, coveralls, gloves and sun protection and gloves Covered steel capped boots, eye protection, coveralls, gloves and sun protection, gloves and hardhat
Gloves Hardhat
5.0 FLXMAT QA/QC ACTIVITIES 5.1 FLXMAT QUALITY PROCEDURE Prior to commencement of manufacturing (PRE-EXECUTION) the following documentation must be approved by client.
Page: 8
Inspection Test Plan Mattress Construction Drawing Lift Rope Verification Execution Plan Rope Certification Concrete mix design
Execution Plan During assembly and casting activities the quality of FLXMAT is built around the ongoing surveillance of the below documents. Project activities are monitored by International Grout Operations and/or Client depending on the rank of the inspection surveillance code listed within the approved ITP.
QR1 (Quality Record 1) QR2 (Quality Record 2) Daily Progress Report (DPR) Concrete delivery docket Concrete Compressive Strength Results As-Built weight records
In summary to maintain an organised quality program the following chart describes the simple process. Approve and file PREEXECUTION DOCUMENTS APPROVED WORKING
Result
ITP
QUALITY PRODUCT
ASSEMBLY AND CASTING DOCUMENTS Follow Surveillance Codes 5.2 FLXMAT CONCRETE TESTING Concrete vendor will take 12No. test cubes each day from random trucks delivered to casting yard (6No. cubes are allocated for each 7 day and 28 day tests respectively). All test cube samples are taken at the batching plant and stored in the dedicated laboratory where all testing is performed. 5.3 FLXMAT MARKING PROCEDURE Each precast concrete mattress shall be permanently marked with the following data: Individual Serial Number Contract Number Weight in Air
Page: 9
Execution Plan 6.0 INSPECTION AND REPAIR PROCEDURE During assembly of the mattresses all shells and clips are inspected for faults. If a shell has any cracks or is deficient they are immediately discarded, and similarly clips are discarded if they are deficient. Any clips that are not holding shells together satisfactorily are reinforced with screws. After casting all mattresses are inspected by the International Grout Operations site supervisor and the inspection details are recorded within QR1. The mattresses are checked for any casting deficiencies that may compromise integrity. If after curing the mattress integrity is found to be affected or faults exist that impinge safe handling or risk mattress longevity, it will be discarded immediately. 7.0 FLXMAT DELIVERABLES The following documents make up and complete the Manufacturer Record Book (MBR) Manufacturer Record Book 1.0 FLXMAT Execution Plan 2.0 FLXMAT QA/QC Records 2.1 Signed ITP 2.2 Compiled QR1 (Quality Report 1) 2.3 Compiled QR2 (Quality Report 2) 2.4 Concrete Delivery Dockets 2.5 Concrete Compressive Strength Test Results 2.6 As-Built Weight Records 2.7 Onsite Daily Progress Reports (DPR) 3.0 FLXMAT Engineering 3.1 Concrete Mix Design 3.2 Mattress Construction Drawings 3.3 Lift Rope Verification 4.0 FLXMAT Rigging and Installation Procedure 5.0 FLXMAT Brochure
Page: 10
MATTRESS LIFTING ROPE VERIFICATION FLX-ENG-LIFT Client: Project: Project Number: Date:
SPEC Management LLC 53No. 6x4x0.3m Concrete Mats 0029-05-2010B 7/11/2010
Introduction: The following calculations assess the mattress rope MBL for offshore lifting and are completed in accordance with DNV Rules for Planning and Execution of Marine Operations (1996) - Part 5&6 Variables: Load Factor [γf]
Remark Assume 1.3
Consequence Factor [γc]
Assumed 1.3 whereby sling failure would not incur a total loss
Splicing/Bending Factor [γr]
Assumed 1.0 when splice consumed in concrete block
Wear Factor [γw]
Assume 1.0
Material Factor [γm]
Assume 3.0 for fibrous rope
Maximum Breaking Load [MBLActual]
Actual Maximum Breaking Load of the rope supplied
Methodology: The minimum required MBL is calculated by the following: MBL required = Maximum Dynamic Rope Load x Nominal Safety Factor Maximum Dynamic Rope Load is back calculated from rope properties and lift geometry Dynamic load = (Mattress mass [MT] x DAF x Skew load) Nominal Safety Factor [γst] - γ st = γ c .γ r .γ w .γ m .γ f Finally for the lifting rope to be safe the following equation must be satisfied
Factor of Safety [FOS] ≥ MBLSpecified / MBLRequired Calculation: PRE-PROCESSOR
POST-PROCESSOR
Mattress Properties
Mattress Particulars
Shell type [T1 or T2]
T2
3 0.047 m
Block volume [Vb]
Mattress Width [MW]
4m
Block mass [Mb]
113 kg
Mattress Length [ML]
6m
Total mattress volume (VT)
4.53 m
Mattress Height [MH]
300 mm 3 2400 kg/m
Total Mass of Mattress [MT]
Concrete Density [ρc] Concrete Grade (Min)
40 MPa
3
10.87 t
Total Submerged Mass [MSUB]
6.23 t
Lift Rope Particulars Nominal Safety Factor
5.070
Lift Rope Properties Polypropylene
Type of Rope Diameter of Rope [Dr]
Lifting Particulars
22 mm
Dynamic load
Angle of Sling [θs]
20 °
Required MBL
Consequence Factor [γc]
1.3
FOS (Over Designed by-)
Splicing/Bending Factor [γr]
1.0
Wear Factor [γw]
1.0
Material Factor [γm]
3.0
Load Factor [γf]
1.3
Breaking Load [MBLActual]
6.8 Te
23.13 t 3.66 t 1.856
PASS
Lifting Properties Dynamic Amplification Factor [DAF]
0 Revision
2.00
7/11/2010
Date
Issued for Approval Issue
JD By
Checked
Approved
FOROOZAN Development Operations & Production Enhancement
Document Number Crossing Installation Procedure For Export Pipeline
Project
Facility
Discipline
Document
Sequence
Revision
FE560
GEXP
PL
PR
1727
D0
Attachment 3: GERIMAL SPECIFICATION
Sheet NO. Page 18 of 23
Halani International Ltd. DSV Gerimal PRINCIPAL PARTICULARS Registry : Kingstown St. Vincent Call Sign : J8B3528 Official No. : 10001 Year Built : 1981-Refurbished in Aug 2007 Class : American Bureau of Shipping Notation : ?A1, ?AMS, ?DPS-2 Type : Diving Support /accommodation 76 Pax Vessel Class No. : 8125016 IMO No. : 7932240 Hull No. : 837 Flag : St. Vincent & Grenadines, Kingstowns
DIMENSION Length Overall : 76.14 m Moulded Breadth : 16.4 m Depth Moulded : 4.90m Draftc : 4.00 m GRT : 2008 Mt NRT : 602 Mt Deadweight : 954 Mt
PERFORMANCE Maximum speed :8.0 kn Economical speed : 7.0 ln Type of fuel :Marine Gas Oil CARGO CAPACITIES 2 Deck Strength : 10 t/m 2 Clear Deck Area : 650 m 3 Fuel Oil : 502.4M 3 Fresh Water : 794.0 M 3 Ballast/Drill Water : 473.9 M 3 Freezer : 10 m 3 Chiller : 9.5 m Mud : Delete DP2 DYNAMIC POSITIONING SYSTEM DP System : KPOS DP 21, Dynamic Positioning System KPOS-2 3 Gyro compass 2Wind Sensor 3MRU 2DGPS 2UPS 1 LW TAUTWIRE MK15 1 HIPAP – 450 2K-POS – OS 2 JOY-OT C WING - OT PROPULSION SYSTEM Main Engine : 2 x Guleco DC Motors Main Generator : 5 x 900 Kw, 600V, 60Hz Emergency Genset : Propeller : 2 x 5Blade, Fixed pitch 102” in Kort Nozzle Bow Thruster : 4 nos. Fwd: 2nos:- 1 x GEI 752 Kamewa
DISCHARGE RATES 3 Fuel Oil : 97m /hour Fresh Water : Not known Mud : delete no mud tanks
NAVIGATIONAL /COMMUNICATION EQUIPMENT GMDSS SSB : 1 x Sailor HT 4500MF/HF VHF DSC : 2 x Sailor RT2058 Inmarsat -C : 2 x Sailor H2095C transceivers Satellite Comms : FLEET 77 Tel – 00873 761155141 Fax –00873 761155142 Satellite EPIRB : 1 X McMURDO E-3 SART : 2McMURDO RT9-3 VHF Radio : 3 x Sailor Compact Rt2048 Portable VHF Radio : 6 x Motorola GP 340 : 3 x ICOM IC GM 1500E Navtex Receiver : 1 x JMC NT-900 X-Band Radar : Furuno FR 2115 Echo Sounder : Koden CVS 118 Mk II Gyrocompass : 3 x Sperry mk 37 Weather Fax : 1 x Furuno Fax-207,8” delete not fitted Speed Log : Delete, none fitted Magnetic Compass : Saura keiki AIS : JRC KHS 182
Ulstein Transverse T Thruster, TT 1300, 500KW. electric drive, 485kW Stern 2nos:-2 x Kamewa Ulstein Transverse, TT 1300, 500KW FIRE FIGHITING EQUIPMENT Internal 3 Fire Pump : 14M (3800USG Per/M) 3 Emer. Fire Pump : 24 M (6400USG Per/M) Fixed System in E/R: C02 Firemain : 2” Fire Detection Sys. : Heat & Smoke detectors Fireman’s Outfit : 4 nos Fire Blankets : 2 nos Fire Axe : 2 nos
ACCOMMODATIONS Berths
: 76Berth
Hospital
: 1 bed complete
Particulars given are entirely without warranty as to correctness and interested parties must satisfy themselves by inspection of the vessel
Halani International Ltd.. DSV Gerimal
DECK EQUIPMENT Windlass : IP 66 / IM 10001 Anchor : 2 x 1.18t Anchor Chain : 9 shackles each side Main Crane : 40t @ 5.5 m 18t @ 9.0m 6.5t @ 20.0m 4.7t @ 24.0m Auxiliary Crane : 0.5t Gangway : 1 Nos
LIFE SAVING APPLIANCE Search Lights : 3 nos Floodlights : 2 x overboard Liferafts : 4 x 45 persons 6 x 25 persons Lifebuoys : 12Ring Buoys with smoke floats and signal lights Life jackets : 150 Ncs Rescue boat : 1 x Watercraft R-5 Air Breathing App : 4 nos EEBD : 6 nos Parachute Distress : 12 Smoke Signal :6
Particulars given are entirely without warranty as to correctness and interested parties must satisfy themselves by inspection of the vessel
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Attachment 4: CRANE CHART
Sheet NO. Page 19 of 23
Crane Boom Lifting Capacity
Unit: metric ton
Counterweight: 53.0 t, Carbody weight: 10.0 t Working radius (m)
Boom length (m)
4.5 5.0 6.0 7.0 8.0 9.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 42.0 44.0 Reeves
Working radius (m)
Boom length (m)
10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 42.0 44.0 46.0 48.0 50.0 52.0 54.0 56.0 58.0 60.0 Reeves
15.2
18.3
21.3
24.4
27.4
30.5
33.5
36.6
4.5 m/135.0 131.1 5.1 m/128.4 5.6 m/117.2 110.1 109.6 6.1 m/107.8 6.7 m/95.1 110.4 91.1 89.3 7.2 m/84.2 7.7 m/75.3 94.8 93.3 95.1 74.6 72.4 8.2 m/67.8 8.8 m/61.7 77.4 75.9 79.9 79.1 79.5 61.5 60.0 64.9 62.5 67.2 66.0 68.8 68.5 67.7 55.0 53.6 58.8 58.3 57.4 56.5 59.0 59.0 58.4 44.9 44.1 45.2 45.1 45.4 45.2 45.7 45.6 44.3 36.3 36.2 36.8 36.6 36.5 36.5 37.1 37.0 33.5 30.2 30.1 14.8 m/29.3 30.8 30.6 30.0 31.0 30.5 30.4 25.8 25.7 17.5 m/24.8 26.4 26.2 26.6 26.1 26.0 22.4 22.3 23.0 22.8 21.7 22.7 22.6 19.7 19.6 20.1 m/21.3 19.9 20.1 20.0 19.9 17.5 17.4 22.8 m/18.5 18.0 17.9 17.7 15.7 15.6 25.4 m/16.0 16.1 16.0 14.2 14.1 14.2 14.5 12.9 12.8 28.1 m/14.1 13.2 11.8 11.7 30.7 m/12.5 10.8 33.3 m/10.9 9.7
10
10
9
8
8
7
6
6
5
51.8
54.9
57.9
61.0
64.0
67.1
70.1
73.2
76.2
10.9 m/44.2 11.4 m/40.1 11.9m/38.4 40.0 39.1 38.2 12.5 m/35.8 13.0 m/33.4 13.5 m/26.7 31.7 30.9 26.7 14.1 m/26.7 14.6 m/24.4 15.1 m/20.4 33.9 33.2 32.5 25.7 22.7 19.4 27.4 26.7 26.3 29.3 28.7 28.1 22.5 20.6 17.5 24.0 23.4 23.0 25.2 25.1 24.6 19.9 18.8 15.8 21.2 20.7 20.4 21.7 21.6 21.5 17.7 17.1 14.3 18.6 18.4 18.1 19.0 18.9 18.8 15.8 15.4 13.0 16.4 16.2 16.2 16.8 16.7 16.6 14.2 13.8 11.8 14.6 14.4 14.4 15.0 14.9 14.7 12.7 12.4 10.7 13.1 12.9 12.8 13.5 13.4 13.2 11.4 11.2 9.7 11.7 11.6 11.5 12.2 12.1 11.9 10.2 10.0 8.8 10.6 10.4 10.4 11.1 10.9 10.8 9.2 9.1 8.0 9.6 9.4 9.4 10.1 10.0 9.8 8.4 8.2 7.2 8.8 8.6 8.5 9.2 9.1 8.9 7.6 7.4 6.5 8.0 7.8 7.8 8.5 8.4 8.2 6.9 6.7 5.8 7.3 7.1 7.1 7.8 7.7 7.5 6.3 6.1 5.2 6.7 6.5 6.5 7.2 7.1 6.9 5.7 5.5 4.6 6.2 6.0 5.9 6.7 6.5 6.4 5.2 4.9 4.0 5.7 5.4 5.3 5.9 6.0 5.9 46.5 m/5.7 4.7 4.4 3.5 5.2 4.9 4.9 5.3 5.4 49.2 m/4.8 4.2 4.0 2.9 4.7 4.5 4.4 4.7 51.8 m/4.1 3.8 3.6 2.4 4.2 4.1 4.0 3.4 3.2 3.6 3.6 3.5 54.4 m/3.4 3.0 2.8 3.0 3.1 57.1m/2.8 2.5 2.4 2.6 59.7 m/2.2 2.1 4 3 3 3 3 2 2 2 2
Note: Ratings according to EN13000. Ratings shown in are determined by the strength of the boom or other structural components. Refer to notes P12.
13
39.6
42.7
9.3 m/56.3 52.2 43.0 36.1 30.0 25.6 22.2 19.5 17.3 15.5 13.9 12.7 11.5 10.6 9.8 8.9 38.6 m/8.6 5
Boom length (m)
Working radius (m)
10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 42.0 44.0 46.0 48.0 50.0 52.0 54.0 56.0 58.0 60.0 Reeves
45.7
48.8
9.8 m/51.8 50.9 10.4 m/47.8 41.0 42.0 34.7 35.6 29.8 29.9 25.3 25.4 21.9 22.0 19.2 19.3 17.0 17.1 15.2 15.3 13.6 13.8 12.3 12.5 11.2 11.4 10.3 10.4 9.4 9.6 8.7 8.8 8.0 8.1 41.2 m/7.5 7.4 43.9 m/6.5 4 4
Boom length (m)
Working radius (m)
4.5 5.0 6.0 7.0 8.0 9.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 42.0 44.0 Reeves
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Attachment 5: DIVING PROCEDURE
Sheet NO. Page 20 of 23
SAT DHRUV 12 MEN SATURATION DIVING SYSTEM SPECIFICATION
TABLE OF CONTENTS
PAGE
General Description
3
Summary of the Module Inventory
3
Diving System Components
4
1. Three Men Diving Bell
4
2. Single Lock Decompression Chamber (4-man) DDC-013
5
3. Single Lock Decompression Chamber (6-man) DDC-021
6
4. Single Lock Hyperbaric rescue Chamber (12-man) HRC
6
5. Single Lock TUP Chamber with four spool connection doors
7
6. Environmental Control System (in Life Support Equipment Container)
8
7. Hot Water System-electric (in Life Support Equipment Container)
8
8. Saturation Control Container
9
9. Bell Dive Control Container
9
10. Electrical Distribution Panel (in Sat/Bell Container)
9
11. HRC Trunk
9
12. Potable Water System (in Life Support Equipment Container)
10
13. Umbilical Module
10
14. Spool Piece between Chambers (DDC013 & DDC 021)
10
15. Spool Piece between TUP & Chamber (DDC 013)
10
16. Spool Piece between HRC & TUP
10
17. Spool Piece TUP to Diving Bell mating clamp
10
18. Sanitary System
11
19. ‘A’ Frame Assembly
11
20. Clump Weight System
11
21. Hydraulic Bell Winch
11
22. Newly build Hydraulic Power Pack Module
11
23. Main Bell Umbilical Power Sheave
12
24. Workshop/Spares Container
12
25. HRC Control Van
12
26. Certification
12
SAT DHRUV 12 MEN Saturation Diving System Specification
2
General Description The saturation diving system is of modular construction, meaning that the major components of the diving system are built into individual crash frames which will also allow the system to be configured in different configurations to make maximum use of the space available on the barge or proposed dive ship. The saturation diving complex and associated equipment is capable of supporting a 12 man diving team in 1 x 4 plus, 1 x 3 man bunk &12 sitting HRC & 1 x 6 men chambers to a maximum working depth of 200 meters. The design and certification for the diving system will be for a maximum design pressure of 200 meters. The diving bell will be equipped for three divers. It will be used for saturation mode only. The bell has one side mating position. The bell will be handled by a simple ‘A’ Frame assembly, with two hydraulic rams and the trolley will bring the bell in to the side mating position. For deployment, the bell will be trolley out and will be hoisted in to the catcher deployment system, the ‘A’ Frame will be boomed out to the launch position. The handling system for the bell will also incorporate a hydraulic bell winch and a Hydraulic driven clump weight winch. The hydraulic main bell winch will be the primary means of recovery and deployment. This will use the hydraulic motor as the primary means of operating the winch and the air motor will be the secondary means of operating the winch and the clump weight winch will act as another means of recovery. The operation of the hydraulic handling system and winches will be from the hydraulic control consul, which is situated on top of the living chamber (DDC 013) Skid package. Summary of the Module Inventory 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19.
Single Lock Decompression Chamber (4-man) DDC 013 6 Man Living Come Out Chamber (DDC023) Diving Bell (3 man) 12 x Man Hyperbaric Rescue Chamber with (1 x 3 bunk) living chamber (HRC) TUP (Transfers under pressure) with spool four doors for chambers connection. Four Environmental Control System (in Life Support Equipment Container) Two Hot Water System-electric (in Life Support Equipment Container) Saturation Control container with Potable Water System hot & cold water supply to all chambers. Bell Dive Control Container with client office. Bell Umbilical Basket C/W 250m new Main bell umbilical Electrical Distribution Panel (in Sat / Bell dive Container) HRC Trunk on TUP Bell mating trunk on TUP. DDC-013 mating trunk on TUP. DDC-021 mating trunk on DDC-013. Sanitary System ‘A’ Frame Assembly with bell trolley assembly. Clump Weight System Hydraulic Bell Winch
SAT DHRUV 12 MEN Saturation Diving System Specification
3
20. 21. 22. 23. 24. 25. 26.
Hydraulic Power Pack Module Main Bell Umbilical hyd. Power Sheave Hydraulic clump weight winch. Workshop/Store Spares container Secondary Divers Hot water unit diesel powered HRC control unit with chillier unite Life Support Equipment Container Transit frame
Diving System Components
1. Three Men Diving Bell The diving bell will be equipped for three divers. It will be used for saturation mode only. The bell has one side mating position. The bell will be handled by a simple ‘A’ Frame assembly with two hydraulic rams and the trolley will bring the bell in to the side mating position.
SAT DHRUV 12 MEN Saturation Diving System Specification
4
2. Single Lock Decompression Chamber (4-man) DDC-013 Four-man single lock living decompression chamber with TUP Trunk, having 4 bunks, Medical lock and Man way to living decompression chamber DDC-021. This chamber was built in 1977 by Aqua Logistic and has an internal diameter of 2.2-mtr diameters, inside length 4.2 metres, internal volume 16,9 M3 and safe working depth-200 metres. The Design code BS1515 Part1-1965. Certifing authority Lloyds. However the chamber has been fully refurbished and recertified by ABS in March 2009 along with the complete spread. The chamber is mounted in a heavy-duty transit frame, which forms part of the base for the A-frame bell deployment system, winch package and hydraulic power pack. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20.
Pipe work and valves (JIC & NPT) Electrical system 24V. DC One internal conditioning system Four C02 scrubbers One sound power phone One speaker bull horn Four call button Four diver personal communication Four hyperbaric bunk lights Two hyperbaric chamber lights One caisson gauge One temperature and humidity gauge Four bunks Chamber aluminium flooring Four overboard dump mask connection points, two manifold blocks and one tescom back pressure regulator One temperature sensor Medical lock with interlock One toilet system One shower system One sinks
SAT DHRUV 12 MEN Saturation Diving System Specification
5
3. Single Lock Decompression Chamber (6-man) DDC-021 Six-man single lock living chamber with having 6 bunks, Medical lock and Man way to living decompression chamber DDC-013.This chamber was built 1977 by Seafoth and has an internal diameter of 2.2-mtr diameters, inside length 7.6 metres, internal volume 36,8 M3 and safe working depth-200 metres. The Design code BS1515 Part1-1965. Certifing authority Lloyds. However the chamber has been fully refurbished and recertified by ABS in March 2009 along with the complete spread. The chamber is mounted in a heavy duty transit frame. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20.
Pipe work and valves (NPT) Electrical system 24V. DC Two internal conditioning system Six C02 scrubbers One sound power phone One speaker bull horn Six call button Six diver personal communication Six hyperbaric bunk lights Four hyperbaric chamber lights One caisson gauge One temperature and humidity gauge Six bunks Chamber aluminium flooring Six overboard dump mask connection points, two manifold block and one Tescom back pressure regulator One temperature sensor Medical lock with interlock One toilet system One shower system One sinks
4. Single Lock Hyperbaric rescue Chamber (12-man) HRC 1 x 3 man bunk &12 sitting HRC chambers to a maximum working depth of 300 meters. Three-man single lock living chamber with having three door for mating clamp and 3 bunks, Medical lock and Man way to TUP. This chamber was built in 1982 by Aqua Logistic international ltd. and has an internal diameter of 2.2-mtr diameters, inside length 4.6 metres, internal volume 16,8 M3 and safe working depth-300mtrs. The Design code BS1515 Part1-1965.Certifing authority Lloyds. However the chamber has been fully refurbished and re-certified by ABS in March 2009 along with the complete spread. The chamber is mounted in a heavy-duty transit frame and launching skid with HRC Bottom four wheels which allow HRC to slid itself into water. 1. 2. 3. 4. 5.
Pipe work and valves (JIC & NPT) Electrical system 24V. DC One internal conditioning system Four C02 scrubbers One sound power phone
SAT DHRUV 12 MEN Saturation Diving System Specification
6
6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20.
One speaker bull horn Three call button Three diver personal communication Three hyperbaric bunk lights Two hyperbaric chamber lights One caisson gauge One temperature and humidity gauge Three bunks Chamber aluminium flooring Three overboard dump mask connection points, two manifold blocks and one Tescom back pressure regulator One temperature sensor Medical lock with interlock One toilet system One shower system One sink
5. Single Lock TUP Chamber with four spool connection doors. Single lock TUP chamber with having four spool connection doors, Man way to living decompression chamber DDC-013, Man way to HRC chamber, Man way trunk to Diving bell and top door closed & blanked from out side. This chamber was built by Seafoth and has an internal diameter 1.7mtr, inside height 1.9 metre, internal volume 5.6 M3 and safe working depth-200 metres. The Design code BS1515 Part1-1965.Certifing authority Lloyds. However the chamber has been fully refurbished and certified by ABS in March 2009 along with the complete spread. The chamber is mounted in a heavy-duty transit frame. Which forms part of the base for the A-frame bell deployment system, winch package and hydraulic power pack. SAT DHRUV 12 MEN Saturation Diving System Specification
7
1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13.
Pipe work and valves (JIC & NPT) Electrical system 24V. DC One internal conditioning system One C02 scrubbers One sound power phone One speaker bull horn One call button Two hyperbaric chamber lights One caisson gauge Chamber aluminium flooring One toilet system One shower system One sink
6. Environmental Control System (in Life Support Equipment Container) This consists of four individual Kinergetic CMU units. The four units will be stacked in the life support equipment container complete with reservoir receivers mounted on the wall. These units will be configured as unit 1 and 2 as the primary operational units and unit 3 to be used as a stand-by unit. The system will maintain complete automatic control of the temperature and humidity in the chambers and will also remove CO2 produced by the divers in the chamber. The system provides control of heating, cooling and dehumidification of the diver’s Breathing gases. The pipe work from the reservoirs to the penetrate plates in the container will be hard plumbed with a series of pipe work and valves to interconnect all the CMU units. All the internal habitat control units (HCU) in the chamber are connected to the penetrator plate by suitable deck hoses.
7. Hot Water System-electric (in Life Support Equipment Container) A single boiler/heater tank is supplied using a single pressure vessel with over pressurization devices. This heater unit will be electrically powered and capable of heating seawater and freshwater with a flow of 10 gpm @ 4 bar inlet water pressure, the unit should have a temperature range of 30°c to 70°c with +/- 2°c control. A grundfoss pump is incorporated within the skid to boost this hot water supply to the divers at 27 bar. The hot water incorporate the following: 1. 2. 3. 4. 5. 6. 7.
Inline water filtration. Electrical isolation control. Earth leakage trip system. Low flow alarm. High temperature alarm. Pump motor start/stop delay. Digital temperature control and display.
SAT DHRUV 12 MEN Saturation Diving System Specification
8
8. Saturation Control Container The saturation control room has the following services included in the system: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
12. 13.
Depth monitoring system DDC’s , HRC and Trunks. Pressurization and vent DDC’s, HRC and Trunks. Bib control panel DDC’s and HRC. CO2 and O2 analyzer panel DDC’s and HRC. Calibration gas panel DDC’s and HRC. O2 injection panel DDC’s and HRC. Environment control panel DDC’s. Temperature monitoring panel DDC’s & HRC Communication control panel to all compartments Diver personnel communication system to all bunks in the chambers On line gas storage panel (distribution). • Pressurization. • Bibs. • Treatment mix. One B/A hose line connection. Electric distribution Panel.
9. Bell Dive Control Container The bell control room shall have the following services included in the system: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
Depth monitoring system internal, external. Depth monitoring system internal, diver 1 and 2. Depth monitoring system internal, trunk to TUP. Pressurization and vent of bell and trunk. On line (gas supply) monitoring for divers. CO2 and O2 analyzer panel for divers and bell. Gas calibration panel. Communication panel for bell and divers. On line mix gas distribution panel. One B/A hose line connection. Electric distribution panel and isolation panel for total bell system.
10. Electrical Distribution Panel (in Sat/Bell Container) Isolation control boxes will be situated in bell control container; all electrical services from the diving system are terminated at a breaker panel along side the main isolation panel and linked together. An earth leakage trip system is incorporated in the panel. 11. HRC Trunk A HRC Trunk is supplied. This is connected to the TUP. The clamp will be an Hingetype hand-operated clamp. All penetrations for the pressurization, vent and depth monitoring are fitted to the trunk.
SAT DHRUV 12 MEN Saturation Diving System Specification
9
12. Potable Water System (in Life Support Equipment Container) The potable water system supplies hot and cold water at 7 bars over the working pressure in continuous operation and consist of two systems including: ● Hot & Cold water tanks ● Gas Panel ● Temperature and Pressure Indicators 13. Umbilical Module A main bell umbilical is provided comprising of the following specification: 5 x ¼ Inch Pneumos 1 x ¾ Inch Hot Water Hose 1 x ¾ Inches Reclaim Hose 1 x ½ Inch Divers Gas Hose 1 x ½ Bell Blow Down 2 x Comms/TV & Power cables. Close mesh polythene monofilament over braid. An umbilical storage basket is provided. The storage basket will be of steel construction with four lifting lugs and a four point lifting sling. 14. Spool Piece between Chambers (DDC013 & DDC 021) A spool piece between the DDC-1 and DDC2 incorporates pressurization, vent and depth monitoring in the trunk. The other spool piece will connect the TUP & DDC013 living chamber. 15. Spool Piece between TUP & Chamber (DDC 013) A spool piece between the DDC-1 and TUP incorporate pressurization, vent and depth monitoring in the trunk. The other spool piece connects the TUP & HRC living chamber. 16. Spool Piece between HRC & TUP. A spool piece between the DDC-1 and HRC mating clamp incorporates pressurization, vent and depth monitoring in the trunk. The other spool piece will connect the TUP & BELL mating clamp. 17. Spool Piece TUP to Diving Bell mating clamp The spool piece between the diving bell mating clamp and TUP is positioned on the side man way on the TUP. This incorporate a hydraulically operated type clamp with safety interlock. This spool piece also equipped with: 1. Pressure and vent penetrator 2. Depth sensor line penetrator SAT DHRUV 12 MEN Saturation Diving System Specification
10
18. Sanitary System The DDC’s sanitary system has a connection to connect to the ships sanitary system via a holding tank with all necessary valves and safety devices situated on the main skids. 19. ‘A’ Frame Assembly a) The ‘A’ boom frame is constructed of 290 x 260 mm heavy-duty I beam steel and fabricated with ladder runs up the ‘A’ Frame to assist with the maintenance and inspection of the unit. A main bell lift wire sheave is located under the top/centre section of the “A” frame and in association with this there are pulley and stop-end for use with the clump weight and clump weight wire. b) The ‘A’ boom davit is powered by two hydraulic rams which move the bell over the ship’s side. 20. Clump Weight System A guide wire system is fitted to provide stability to the bell. This system also acts as a secondary means of recovery of the bell to the interface and a means of supporting the bell clear of the bottom. The system consists of: a) One hydraulic winch rated at 7 ton load / 13.6 ton pull b) 450 meters of 28mm spin resistant wire c) One clamp weight.
21. Hydraulic Bell Winch The winch itself is a hydraulic man riding winch and is situated over the TUP & Single lock living chamber upper skid. The winch has a spooling device for the wire rope to prevent any over-laying of wire. The pneumatic air motor with gearbox and chain drive will give twice the full load capacity to safely retrieve the bell in the event of electric power failure. Air auxiliary drives 10 tons at 6m/min. Air consumption 350 cfm at 80 psi. installation of the hydraulic system is geared to be of the shortest duration with all fittings of quick (Aero quip) disconnect type.
22. Newly build Hydraulic Power Pack Module The hydraulic power pack utilizes 2 x 50 KW (100 HP) 3 Phase electric motor. This power pack provides sufficient power to run the system. The power pack delivers hydraulic pressure to the bell winch, the main ‘A’-Frame rams, trolly ram,umb. Sheave and to clamp weight winch.
SAT DHRUV 12 MEN Saturation Diving System Specification
11
23. Main Bell Umbilical Power Sheave This consist of a 1.5 meter dia steel fabricated sheave to accommodate the main bell umbilical. The sheave is driven through Lucas type reduction gear box and driven by an independent hydraulic motor. This unit is mounted on a pedestal so it can be positioned along side the main bell umbilical and ‘A’ Frame to deploy and recover the main bell umbilical with the bell movements. The controls for this power sheave are located with the bell handling system controls above the main DDC Package. 24. Workshop/Spares Container This will contain spares and tools for the saturation system. 25. HRC Control Van This unit is fitted with a decompression panel including depth gauges, O2 and CO2 Analyzers, communication system and a Habitat control unit. 26. Certification All documentation and certification is in accordance with the H.S.E. & IMCA. (Code of Practice on the Initial & Periodic Examination, Testing and Certification of Diving Plant & Equipment DO18).
SAT DHRUV 12 MEN Saturation Diving System Specification
12
FOROOZAN Development Operations & Production Enhancement
Document Number Crossing Installation Procedure For Export Pipeline
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Attachment 6: SURVEY QUALITY PLAN
Sheet NO. Page 21 of 23
Survey Quality Plan Positioning Survey Services In Support of the Installation Pre-Lay Crossing Supports Proposed 24” Export Pipeline, FZ-A to Kharg Island Foroozan Field Persian Gulf, Offshore Iran For SPEC Ship Management L.L.C Revision: 0 Project Date: December 2010 Prepared By Horizon Survey Company (FZC) P.O. Box 68785 Sharjah International Airport Free Zone (SAIF Zone) Sharjah United Arab Emirates Tel: +971 6 557 3045 / Fax: +971 6 557 3047
[email protected] HSC Project No.:
CP-SPE-0566A
HSC Document No.:
CP-SPE-0566A - Survey Quality Plan - Rev 0
Project Information Project :
Positioning Survey Services.
Client :
SPEC Ship Management L.L.C
Contract Reference No. :
SPE/HOR/10/001
HSC Project No. :
CP-SPE-0566A
HSC Document No. :
CP-SPE-0566A - Survey Quality Plan - Rev 0
Issued To: SPEC Ship Management L.L.C For the Attention of :
Mr Afshin Parsaie
Address :
SPEC Ship Management L.L.C Floor No.4, No. 54 2nd Street, Mirzayehshirazi St. Karimkhab Blv. Tehran Iran
Tel :
+98 21 8892 2417
Fax :
+98 21 8834 8030
Email :
[email protected]
Issued By: Horizon Survey Company (FZC) Project Manager :
Hamid Ardalany
Address :
Horizon Survey Company (FZC) P.O. Box 68785 Sharjah International Airport Free Zone (SAIF Zone) Sharjah United Arab Emirates
Tel :
+971 6 557 3045
Fax :
+971 6 557 3047
Email :
[email protected]
Page: i
CP-SPE-0566A - Survey Quality Plan - Rev 0
Horizon Survey (HSC) Revision Control Revision No. 0
Description Issued for client comments
Prepared By
Checked By
Approved By
Issue Date
JB
KB/VK
AD
27.12.2010
Survey Procedures Volume Description Volume No.
Volume Title
Contents
n/a
Survey Quality Plan
Project information, scope of work, detail of the methodologies, procedures and resources for the project.
Page: ii
CP-SPE-0566A - Survey Quality Plan - Rev 0
Table of Contents Page 1. 1.1. 1.2. 1.3. 1.3.1. 1.4. 1.4.1. 1.5. 1.5.1. 1.5.2.
INTRODUCTION Reference Documentation Scope of Work Client Supplied Information Crossing positions of the proposed Foroozan 24" FZ-A to Kharg export pipeline Crossing Support Locations Foroozan 24" FZ-A to Kharg – Pipeline Crossing Support Locations Survey Line Plan Pre-Installation Survey As-Built Survey
2. 2.1. 2.2. 2.2.1. 2.2.2. 2.2.3. 2.3. 2.3.1. 2.3.2. 2.4. 2.4.1. 2.4.2. 2.4.3. 2.4.4. 2.4.5. 2.4.6. 2.5. 2.6. 2.6.1. 2.7. 2.7.1. 2.7.2. 2.7.3. 2.7.4. 2.8. 2.9. 2.9.1. 2.9.2.
SURVEY AND REPORTING METHODOLOGIES Mobilisation Geodetic References, Datums and Tidal Reduction Geodetic References Vertical Datum Tidal Reduction Vessel Offsets, Horizontal and Height References Horizontal Reference Vertical Vessel Reference Field Operations Pre-Installation MBES Survey Surface Positioning Underwater Positioning Sector Scan Sonar As-Built MBES Survey Bathymetric Acquisition Real Time QC Monitoring Data Processing/Analysis and Reporting Daily Survey Logs Reporting Project Daily Reports Pre-Installation Reports Crossing Installation Reports Final Survey Report Report Delivery Schedule Demobilisation Project Demobilisation Project Backup
6 6 6 6 7 7 7 7 7 7 8 8 8 8 8 9 9 10 10 10 10 10 11 12 12 12 12 12
3. 3.1. 3.1.1. 3.1.2. 3.2. 3.3.
QUALITY CONTROL Quality Policy and Objectives Quality Policy Quality Objectives Horizon Survey Organisation Standard QC Check List
13 13 13 13 13 13
4.
PROJECT DELIVERABLE CHECK LIST
14
5. 5.1. 5.2. 5.3. 5.4.
HEALTH, SAFETY AND ENVIRONMENT HSE Policy Environmental and Waste Management Policy Drug and Alcohol Abuse Policy Stop Work Policy
15 15 16 16 16
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List of Appendices Page APPENDIX A – EQUIPMENT LISTING & SPECIFICATIONS Survey Equipment
17 18
APPENDIX B – CLIENT SUPPLIED INFORMATION
19
APPENDIX C – SURVEY PARAMETERS, TIDES AND UNITS GPS Geodetic Parameters Project Geodetic Parameters Geodetic Computation Check Survey Units26
20 21 21 22
APPENDIX D – SYSTEM VERIFICATIONS & CALIBRATIONS In-Port Verifications - Vessel Offset Measurements - Static DGPS Health Verification - Gyrocompass Alignment Calibration - Static USBL Calibration In Field Calibrations - Transit Fix Check - Sound Velocity Measurements - Dynamic USBL Calibration - MBES Calibration True/Grid Headings and Convergence Calculations - Area / Line is West of Central Meridian - Area / Line is East of Central Meridian
27 28 28 28 30 32 32 32 32 33 36 37 37 37
APPENDIX E – PROCESSING OUTLINES
38
APPENDIX F – HORIZON SURVEY ORGANIZATION CHART
40
APPENDIX G – QUALITY CONTROL
42
APPENDIX H – HORIZON SURVEY CONTACT LISTING
48
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List of Tables Page Table 1: Personnel Responsibilities and SQP Awareness Table 2: Survey Sensors/Equipment Table 3: 24- Foroozan 24" FZ-A to Kharg - Pipeline Crossing Locations Table 4: Foroozan 24" FZ-A-Kharg – Pipeline Crossing Support Locations Table 5: Survey Line Plan Table 6: Equipment Onboard DP 'Gerimal' Table 7: Pipeline Crossing Report Volumes (CP-SPE-0566A) Table 8: Report Delivery Schedule Table 9: CP-SPE-0566A - Deliverable Check List Table 10: GPS Geodetic Parameters Table 11: Project Geodetic Parameters Table 12: Geodetic Computation Check Table 13: Project Survey Units Table 14: Horizon Survey’s Standard QC Check List Table 15: HSC Management Contact Details
viii 1 2 3 4 6 11 12 14 21 21 22 26 47 49
List of Diagrams Page Diagram 1: Survey Location Diagram 2: DGPS Verification Diagram, First Method Diagram 3: DGPS Verification Diagram, Second Method Diagram 4: DGPS Verification Diagram, Third Method Diagram 5: Gyro Calibration Diagram, First Method Diagram 6: Gyro Calibration Diagram, Second Method Diagram 7: Gyro Calibration Diagram, Third Method Diagram 8: Dynamic USBL Calibration, First Method, Stage 1 Diagram 9: Dynamic USBL Calibration, First Method, Stage 2 Diagram 10: Dynamic USBL Calibration, Second Method Diagram 11: Convergence Calculations
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Abbreviations & Acronyms The following list of abbreviations and acronyms may be present within the document: CRP CTDS DA DGPS DSV GMT GPS HSC HSE IP L.A.T. LFP MBES ms m/s MSL NTS PC PM PDR ppm PPS pps ppt QC s SM SoW SPM SQP TBA TBC TM TP TVG USBL UTC UTM v/l VoS VRU
Common Reference Point (Datum) Conductivity, Temperature, Depth and Salinity (to compute VoS) Data Acquisition (CODA DA System). Differential Global Positioning System Dive Support Vessel Greenwich Mean Time Global Positioning System Horizon Survey Company Health, Safety & Environment Intersection Point Lowest Astronomical Tide Landfall Point Multi Beam Echo Sounder Milli-second Metres per second Mean Sea Level Not To Scale Party Chief Project Manager Project Daily Report Parts per million Precise Positioning System Pulse per second Parts per thousand Quality Control Second Survey Manager Scope of Work Single Point Mooring System Survey Quality Plan To Be Announced To Be Confirmed Transverse Mercator Turning Point Time Variant Gain Ultra Short Base-line (underwater acoustic positioning system) Coordinated Universal Time Universal Transverse Mercator Survey Vessel Velocity of Sound in Seawater Vertical Reference Unit
Reference Colour Code The following reference colour coding may be used within this document: XXX XXX XXX
Reference to an independent external document. Reference to another section or article within this document. Important Note / Caution
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To
:
Horizon Survey Company - Survey Manager
Fax Number
:
+971 6 557 3047
Date:
:
Subject
:
Project Responsibilities and SQP Awareness
Project Details HSC Project Number:
CP-SPE-0566A
Barge / Rig / Barge:
DP 'Gerimal'
Client:
SPEC Ship Management L.L.C
PM:
Hamid Ardalany
Table 1 lists the survey personnel and their responsibilities for the execution of the project. The survey personnel must ensure that they are fully conversant with the contents of this SQP. This table (Table 1) must be reviewed and signed by all personnel and be transmitted to the PM prior to commencement of the project activities which confirms their acknowledgement and understanding of the survey tasks at hand. Personnel Responsibilities and SQP Awareness Ser No
Activity
Person Responsible
Name(s)
1
Survey Procedures QC & Approval
Survey Manager
Ashraf Deyab
2
Survey Procedures QC
QC Surveyor
Ursula Bell
3
Survey Procedures Creation
Base Surveyor
Karina Bensemann
4
Survey Procedures QC & Overall Project Leader
Project Manager
Hamid Ardalany
5
Offshore Project Leader
Party Chief
6
Client Liaison
Party Chief
7
PDR Creation
Party Chief
8
Online Configuration Setup
Senior Surveyor
9
Geodesy Verification
Senior Surveyor
10
Online Configuration QC Check
Party Chief
11
Sending Project Check List to Office
Party Chief
12
Gyro Calibration
Senior Surveyor
13
Position Verification
Senior Surveyor
14
Transit Checks
Senior Surveyor
15
Velocity Casts (CTDS)
Senior Surveyor
16
Offset Measurements
Senior Surveyor Page: vii
Signature for Awareness and Accountability
CP-SPE-0566A - Survey Quality Plan - Rev 0
Personnel Responsibilities and SQP Awareness Ser No
Activity
Person Responsible
17
Calibration Reports
Party Chief
18
Logbook Keeping
Senior Surveyor
19
Sensor Interfacing
Senior Surveyor
20
Navigation strings to sensors
Senior Surveyor
21
Data Logging
Senior Surveyor
22
Overall Project QC
Party Chief
23
Project Data Backup
Party Chief
24
Returning Project Data to Office
Party Chief
25
Returning Project Field File to Office
Party Chief
26
Report Writing
Party Chief / Senior Surveyor
Name(s)
Signature for Awareness and Accountability
Table 1: Personnel Responsibilities and SQP Awareness
If there is any conflict between the said procedure and the requirement for the field operations or an instruction from the client, the PC must contact the PM and inform him of the situation and discuss an alternative solution/methodology which will not influence the quality of the survey results. Any variation/alteration to the said procedure in the field must be compiled in a variation by the PC and approved (signed off) by the client / representative. A copy of the variation will be transmitted to the PM. In addition to the offshore staff, the necessary administration, logistics, mobilisation, demobilisation and technical support staff will support the project to ensure efficient performance of data acquisition operations It is the responsibility of all personnel to conduct the survey operations in accordance with the said procedures and within the contract specifications. All equipment is to be used within their specification limits and in accordance with the manufacturer’s specifications and the standard operating procedures. All survey personnel are responsible for the optimum use of the survey equipment mobilised as well as the responsibility for the quality of the data gathered and are to ensure that the data is of maximum achievable quality. All data must be appropriately documented and labelled for inclusion in the associated reports and charts. The following personnel will be involved in this phase of the project: • • • •
One (1) Party Chief. Two (2) Surveyors. Two (2) Engineers. One (1) MBES / CAD Processors.
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1.
INTRODUCTION SPEC Ship Management L.L.C (Client) has contracted Horizon Survey Company (FZC) to provide surface and subsurface positioning services during the installation of supports for the proposed Foroozan 24" FZ-A to Kharg export pipeline project, Persian Gulf, offshore Iran.
1.1.
Reference Documentation 1. 2. 3.
1.2.
SPEC Ship Management LLC and HSC agreement reference no. SPE/HOR/10/001 dated November 2010. th Client supplied table entitled “crossing list” received 20 December 2010 Client Supplied Drawing no.: FE560-0000-PL-DW-1657, Sheets 1-12, Revision D0
Scope of Work A total of eleven (11) steel structure supports (mattresses) are to be installed for the proposed Foroozan 24" FZ-A to Kharg export pipeline. The objectives of this project can be summarised as: • • • • •
To assist with the installation of the mattresses using USBL underwater positioning and underwater gyrocompass. To cross check the position of the mattresses against the existing pipeline, by deploying a Sector Scan Sonar. To measure the final as-installed position of the mattresses using USBL underwater positioning and underwater gyrocompass. To measure the final as-installed position of the mattresses by using MBES. To provide a report on the final as-installed positions of the mattresses (including a 3D image of the mattresses using the MBES data).
Refer to Diagram 1 for the project location diagram and the proposed pipeline locations. This SQP (CP-SPE-0566A - Survey Quality Plan - Rev 0) outlines the project SoW, detailed methodologies / procedures and resources required to efficiently complete the SoW and fulfil the client requirements. The above mentioned objectives will be achieved by utilising the instruments/equipment listed in Table 2 onboard the DP 'Gerimal' for their associated application: Survey Sensors/Equipment No 1
Sensor / Equipment C-NAV DGPS Positioning System (PPS mode)
2
TSS Gyro Compass
3
Navigation and Data Logging Computer
4
Reporting Computers
5
Remote Monitors
6
USBL system
7
Underwater Gyro Compass
8
CTDS Probe
9
Sector Scan Sonar
10
MBES & Motion Sensor
11
IP Thuraya System (TBC)
Application Provide precise surface positioning to the DP 'Gerimal'. Provide precise heading to the DP 'Gerimal'. Provide logging and on screen navigation (heading). Provide Report station. Additional stations for processing. To provide underwater positioning during mattress support installations. To provide underwater heading, pitch & roll during mattress support installations. To provide sound velocity through the water profile. Seafloor imagery system. To provide as-installed positions of structure supports. Internet/phone access.
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A full equipment list and specifications are attached as Appendix A. All offshore elevations and bathymetry will be reduced to L.A.T. The positioning accuracy is required to 1 m on a horizontal plane, and 1 degree in heading during crossing support installation. The following measures will be taken to reduce error and achieve this accuracy; a. b. c. d.
Utilise PPS mode for the C-Nav DGPS systems. Final position logging of at least 15 minutes using USBL. Sector scan image to confirm the distance of the installed support with the existing pipeline/cable MBES survey results to be compared with USBL logging.
1.3.
Client Supplied Information
1.3.1.
Crossing positions of the proposed Foroozan 24" FZ-A to Kharg export pipeline The crossing positions along the proposed Foroozan 24" FZ-A to Kharg export pipeline, as per Table 3 were supplied by the client (Reference 2 and Reference 3). Foroozan 24" FZ-A to Kharg - Pipeline Crossing Locations Crossing No.
Sequence
Pipeline / Cable Name
FE-C01
1
FE-C02
2
FE-C03
3
FE-C04
Crossing Location Easting (m)
Northing (m)
KP
Unknown
424 918.86
3 232 565.29
7.690
424 372.42
3 231 718.20
8.705
418 814.96
3 223 103.16
18.957
4
KHARG to LAVAN,SIRI cable Terminal AC2882/Oil pipeline ARDESHIR to DARIUS Falcon-S07a-RPL-PL06-Abridged
391 626.85
3 180 956.18
69.113
FE-C05
5
FOG cable
389 042.86
3 176 950.49
73.880
FE-C06
6
388 529.03
3 176 153.95
74.827
FE-C07
7
376 615.94
3 157 686.34
96.804
FE-C08
11
375 081.31
3 154 339.46
100.513
FE-C09
8
Falcon-S06b-RPL-PL01-Abridged Sub sea Cable for LAVAN,SIRI,KHARG and BAHREGAN District Sub sea Cable for LAVAN,SIRI,KHARG and BAHREGAN District 16" product flow line F-17 to FZ
374 856.34
3 153 897.80
101.010
FE-C10
9
16" product flow line F-17 to FZ
374 563.05
3 153 167.03
101.802
FE-C11
10
20” M.O.L to Kharg Island
374 530.48
3 152 966.85
101.960
Spheroid: WGS84, Datum: ITRF 2000 to epoch 1997.0, UTM Zone: 39N, CM: 51° E Table 3: 24- Foroozan 24" FZ-A to Kharg - Pipeline Crossing Locations
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1.4.
Crossing Support Locations
1.4.1.
Foroozan 24" FZ-A to Kharg – Pipeline Crossing Support Locations The crossing support coordinates for the Foroozan 24" FZ-A to Kharg export pipeline are presented in Table 4, were provided by the client (Reference 2 and Reference 3). Foroozan 24" FZ-A to Kharg – Pipeline Crossing Support Locations Centre of Mattress Coordinates Easting Northing (m) (m)
Support ID
Support Type
Quantity
FE-S01
A
4+4
424 921.52
FE-S02
A/Neoprene
1+1
FE-S03
A/Neoprene
FE-S04
Support angles KP
To Route
To Grid North
3 232 569.47
33°
82°
7.690
424 372.42
3 231 718.20
33°
93°
8.705
1+1
418 814.96
3 223 103.16
33°
68°
18.957
A/Neoprene
1+1
391 626.85
3 180 956.18
33°
73°
69.113
FE-S05
A/Neoprene
1+1
389 042.86
3 176 950.49
33°
69°
73.880
FE-S06
A/Neoprene
1+1
388 529.03
3 176 153.95
33°
71°
74.827
FE-S07
A/Neoprene
1
376 609.94
3 157 672.59
24°
66°
96.804
FE-S08
A/Neoprene
1
376 613.94
3 157 681.76
24°
66°
96.804
FE-S09
A/Neoprene
1
376 617.94
3 157 690.92
25°
69°
96.804
FE-S10
A/Neoprene
1
376 622.20
3 157 699.95
25°
69°
96.804
FE-S11
A/Neoprene
1
375 075.20
3 154 330.30
34°
56°
100.513
FE-S12
A/Neoprene
1
375 081.31
3 154 339.46
34°
56°
100.513
FE-S13
A/Neoprene
1
375 087.42
3 154 348.63
34°
56°
100.513
FE-S14
A/Neoprene
1
374 850.37
3 153 883.41
21°
67°
101.010
FE-S15
A/Neoprene
1
374 854.30
3 153 892.61
21°
67°
101.010
FE-S16
A/Neoprene
1
374 858.38
3 153 902.99
21°
67°
101.010
FE-S17
A/Neoprene
1
374 862.01
3 153 912.24
21°
67°
101.010
FE-S18
A/Neoprene
1
374 557.73
3 153 154.64
67°
25°
101.802
FE-S19
A/Neoprene
1
374 561.20
3 153 162.94
67°
25°
101.802
FE-S20
A/Neoprene
1
374 564.67
3 153 171.25
67°
25°
101.802
FE-S21
A/Neoprene
1
374 568.14
3 153 179.55
67°
25°
101.802
FE-S22
FE-S22
4+4
374 523.84
3 152 924.33
64°
73°
101.960
FE-S23
FE-S23
4+5
374 527.75
3 152 949.70
64°
73°
101.960
FE-S24
FE-S24
4+6
374 532.64
3 152 980.55
59°
43°
101.960
Spheroid: WGS84, Datum: ITRF 2000 to epoch 1997.0, UTM Zone: 39N, CM: 51° E Table 4: Foroozan 24" FZ-A-Kharg – Pipeline Crossing Support Locations
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1.5.
Survey Line Plan
1.5.1.
Pre-Installation Survey Prior to installation a single MBES line is to be run to confirm the position of the existing pipelines. This line will be parallel to the pipeline and the length of the line will be a minimum of 50 m. If there is a group of crossings, a single MBES line will be run to combine these locations.
1.5.2.
As-Built Survey A 50 m x 50 m survey is to be conducted, centred on the as-built position of the mattress supports. Table 5 states the line plan requirements. Survey Line Plan Lines
Line Spacing (m)
Number of Lines
Orientation
Main Lines
50
2
Parallel to pipeline
Cross Lines
n/a
1
Perpendicular to pipeline
Table 5: Survey Line Plan
The boundary coordinates are to be calculated by the PC, based on the as-installed position of the mattress support. Note: As 100% coverage is required, the line spacing may be reduced in shallow water depths. On the other hand the line spacing in deeper areas can be increased based on the actual acquisition from the MBES and water depths. Both actions can be decided in the field by the Party Chief and client representative. The survey lines shall be terminated / diverted when approaching existing structures.
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Diagram 1: Survey Location
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2.
SURVEY AND REPORTING METHODOLOGIES
2.1.
Mobilisation A full equipment list is attached as Appendix A. As a minimum the following equipment, as per Table 6 will be mobilised. Equipment Onboard DP 'Gerimal' Ser No.
Equipment
Number (+ Spare)
1
C-Nav DGPS with spares on EA or AP Sat (PPS Service)
2 (+ 1)
2
TSS Meridian Gyro Compass
1 (1 +)
3
Navigation and Data Logging Computer
2 (+ 1)
4
Reporting Computers
1 (+ 1)
5
MBES System & Motion Sensor
1 (+ 1)
6
USBL System (6 Beacons)
1 (+ 1)
7
TSS Meridian Subsea Gyrocompass, with frame and 150 m cable
1 (+ 1)
8
Sector Scan Sonar System
2 (1 +)
9
CTDS probe
1 (+ 1)
Table 6: Equipment Onboard DP 'Gerimal'
During mobilisation all calibrations and verifications (in accordance with Appendix D) will be conducted prior to the commencement of any work. The verifications, calibrations and checks to be completed during mobilisation and in the field prior to the start of survey operations are as follows: • • • • • • • • •
All vessel and sensor offset measurements. DGPS verification - primary and secondary positioning systems. Gyro alignment calibration. CTDS wet test USBL calibration. Velocity cast. Transit check. Draft measurement for underwater sensors (MBES & USBL transducers). MBES patch test calibration.
The geodetic computation check shall be cross checked (coordinate transformations) and shall be signed off by the PC and the Client/representative. The geodetic parameters and the QINSY setup parameters are to be transmitted to the office for verification PM and SM. Note: If any of the verifications/calibrations are unable to be conducted during mobilisation or prior to the vessel sailing, the client, PM and SM must be informed. 2.2.
Geodetic References, Datums and Tidal Reduction
2.2.1.
Geodetic References The primary grid coordinate system to be adopted is the ITRF 2000 to epoch 1997.0 reference system as follows: • • •
Spheroid name Datum name Projection name
: WGS84 : ITRF 2000 to epoch 1997.0 : Universal Transverse Mercator: (UTM) Zone 39N. Page: 6
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Refer to Appendix C for geodetic details parameters and geodetic computation check. 2.2.2.
Vertical Datum All offshore elevations and bathymetry will be referenced to L.A.T.
2.2.3.
Tidal Reduction All bathymetric data acquired during the survey will be reduced to the L.A.T. by the simplified harmonic method of tidal prediction. The harmonics and tidal constituents for the survey area were derived from the Admiralty Co-tidal Atlas for the Persian Gulf, NP 214 (refer to Appendix C for details).
2.3.
Vessel Offsets, Horizontal and Height References
2.3.1.
Horizontal Reference The CRP from which all offsets are to be measured is the primary C-Nav antenna which will where practically possible be located above the vessel bridge on the fore and aft centreline of the vessel. All offsets will be measured using land survey techniques and verified with tape measure during mobilisation. All measurements will be reduced logged and entered into the navigation system and verified by the surveyor / PC.
2.3.2.
Vertical Vessel Reference Height references will be related to the main deck level adjacent to the MBES pole. The vertical reference for all sensors is variable based on the vessel draught and freeboard to the main deck. The draught measurement shall be recorded at the following times: • • •
Upon the completion of mobilisation before leaving the port. Any time the vessel is alongside. Any time the vessel takes on fuel or water.
The draught measurements are to be logged and provided to the CAD processors onboard. Note: Regular draught readings are to be conducted and recorded in the log book and offsets are to be applied in all relevant software during acquisition. Any discrepancy of observed data must be brought to the attention of the PC onboard and investigated. Any doubt on the validity of the data must be communicated to the PM and SM. 2.4.
Field Operations Prior to sailing to site, the surveyor will complete the Personnel Responsibilities and Survey Procedures Awareness form located at the front of this procedures document. This form along with the survey system configuration printout should be faxed back to the Survey Department for checking and approval. Data is to be recorded within QINSy database files throughout the project operations, this is includes (but not limited to) the diving operations. Positioning of the vessel is to be recorded in QINSy on a 24 hour basis while the vessel is in the field. These QINSy database files are to be submitted to the client at the end of the project.
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To accurately position the supports during installation, surface and subsurface positioning systems will be used as follows: 2.4.1.
Pre-Installation MBES Survey Prior to installation a MBES line is to be run to confirm the position of the existing pipelines against the client supplied information. If the pipeline is within tolerance (±2 m) verbal confirmation can be given to the client for approval. If the positions of the pipelines DO NOT match within tolerance (±2 m), a field report will be created and approved by the client. Once client approval is obtained, the mattress installation can commence.
2.4.2.
Surface Positioning The DP 'Gerimal' will accurately setup over each of the support installation positions, the mattress supports will be lifted and deployed using the DP 'Gerimal' supplied crane wire / frame. Two fixed offsets for both mattress support ends should be accurately measured by the survey crew and added to the positioning and navigation system. Prior to the mattress support deployment, a DGPS position logging will be undertaken to determine the deployment position and heading. The mean position and heading will be calculated upon completion of the logging session. A dedicated subsea gyro, mounted on a temporary support on the mattress and aligned with the mattress’s axis, shall provide the mattress heading and inclination (pitch/roll). A CNAV system is to be installed on the crane boom to monitor the position of the crane head at all times. Screen shots for the deployment position and heading of the mattress supports on the navigation display should be recorded.
2.4.3.
Underwater Positioning The DP 'Gerimal' will accurately setup over each of the support installation positions; prior to installation a MBES line will be run to confirm the position of the existing pipelines within the tolerance stated above in the Section 2.4.1. To provide a continued relative measurement between the mattress and the existing pipeline two USBL beacons are to be installed onto the existing pipeline. As a simultaneous independent positioning system, two (2) USBL beacons will be installed, two at opposite ends of the mattress support to monitor its position while being lowered to the seabed. An underwater gyro will be installed on the mattress to provide heading and inclination (pitch / roll). Once on the seabed, logging of position fixes for a minimum of 15 minutes will be acquired to determine the as installed position and heading of the mattress support. Mean position, heading and inclination will be calculated upon completion of the logging session of both surface and underwater positioning systems. Upon client acceptance of the final position, heading and inclination (pitch / roll), the USBL beacons and underwater gyro will be recovered by the divers, and the as-built position will be observed using MBES.
2.4.4.
Sector Scan Sonar A sector scan sonar is to be deployed during the mattress installation. This will provide a real-time visual observation of the installation. When the mattress support is lowered to the seabed, the distance of the mattress with respect to the existing pipeline is to be measured. A screen shot is to be taken and included as part of the mattress installation report.
2.4.5.
As-Built MBES Survey Upon completion of installation of the group of mattresses, a MBES as-built survey is to be conducted to observe the as-built position of the mattress support, in accordance with section 1.5. The PC will advise Page: 8
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the client on the best line plan for achieving the required results and reducing potential infill work. Any deviation from the stated plan must be recorded in a variation and transmitted to the PM and the SM. End of Line QC Procedure: PC on board the vessel need to make sure that on each end of line, the acquired survey data is to be QC’d against the project requirements and quality of data.
2.4.5.1. On-Line Navigation and Acquisition Systems The on-line navigation and acquisition systems (QINSy,) will be setup to comply with the following criteria as a minimum: • • • • • •
Date, time and position tagging. Sampling and computation of all positioning system data. The cycle time shall not exceed 2 seconds. Processing and real time display of sensor data. QC and verification of data (with hardcopies printouts of non-conforming events/data). Logging of all raw data acquired from the various sensors.
2.4.5.2. Off-Line Processing Systems The off-line processing and charting systems (QINSy, AutoCAD, CARIS etc) shall be used to provide an accurate and complete output from the survey data acquired. In addition to data processing and merging systems, charting systems, standard word-processing and spreadsheet programs, the onboard software programs will be capable to provide the following: • • • • • • 2.4.6.
Geodetic transformations. Tidal computations. Reduction of bathymetric data for tides. VoS computations. Editing, approved smoothing and merging routines. Re-computation of surface positioning data from raw data.
Bathymetric Acquisition The bathymetric survey shall be conducted utilising MBES system. A motion sensor will be interfaced to the MBES to compensate for heave, pitch and roll effects. All data shall be digitally recorded for processing. Acquired data digitally logged using QINSy system, will be analysed after processing by the geophysicist, who will produce a detailed report describing the seafloor bathymetric information within the survey limit. The report will be illustrated with bathymetry images of the crossing locations.
2.5.
Real Time QC Monitoring The following sensor information will be displayed in a time series plot on the online navigation computer which will be continuously monitored by the online surveyor: • • •
Primary positioning system. Secondary positioning system Sensor updates rates.
The following sensor data will be shown in a time series window for real time comparison: • •
Comparison between primary and secondary positioning systems. Comparison between the surface and underwater positioning systems.
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2.6.
Data Processing/Analysis and Reporting All project interfacing, documentation and reporting will be in the English language. The MBES / CAD processor will process the bathymetric and associated data acquired onboard, in accordance with the methodology outlined in Appendix E. The MBES / CAD processor must keep a daily updated processing log for future references and handover. The PC must ensure that all data acquired during the survey is processed in a timely manner and the PC must communicate a daily project status to the PM/SM and client representative.
2.6.1.
Daily Survey Logs Daily survey logs shall be maintained and kept in both soft copies and hard copies in the online operations centre and these shall be made available to the client representative on demand. The daily survey log shall record all the survey activities and factors that may affect the survey operations including: • • • • • •
Details of survey lines (start fix & time, end fix & time, heading, vessel speed, etc). Equipment setup, acquisition parameters, failures and changes. Software setup, failures and changes. Changes in the geodetic details (if any). Hard copies roll details. Brief weather information and survey line alteration.
The logs shall be concise, neat and kept in a hard bound volume. 2.7.
Reporting
2.7.1.
Project Daily Reports The party chief shall compile the project daily reports (PDR) which shall be distributed to all parties concerned with the project. The report shall cover the previous 24 hour period and include the following: • • • • • • • • • • • •
DP 'Gerimal' location and date. Operations and work progress for the past 24 hours with details on work time and accumulative statistics. Survey percentages completed should be broken down to individual components. Work planning for the next 24 hours. Standby/downtime periods with causes and details. Formal communications. Equipment failures and changes. Software modifications. Changes in the equipment setup and parameters Personnel movements Current and forecast weather information. Health Safety and Environmental (HSE) issues and incidents including accumulated project safety statistics. Representative comments, Vessel Superintendent and Horizon PC.
The format of the PDR shall be approved by the client prior to mobilisation. The daily content of these reports shall be agreed by the client / representative and the PC and emailed to the client / representative and HSC office prior to 08:00 hours the next day. 2.7.2.
Pre-Installation Reports The pre-installation MBES reports are only required when the observed pipelines do not match with the client supplied information (within the specified tolerance of ±2 m). The report is to be short (one to two pages), containing a comparison between the client supplied pipeline locations and the MBES observed pipeline locations. This is to include a MBES image illustrating the differences. The report is to be submitted to the client within one working day from completion of the MBES line.
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CP-SPE-0566A - Survey Quality Plan - Rev 0
2.7.3.
Crossing Installation Reports There are eleven (11) crossing locations along each pipeline. A report will be issued for each crossing location. These are to be submitted within one day of completion of as-built survey and are required to contain the following; • • • • •
Introduction and summary of operations. Table of final as-built mattress coordinates. Diagram showing the location of the mattress positions in relation to the existing pipeline. A sector scan sonar image showing the mattress in relation to the existing pipeline. MBES image showing the mattress in relation to the existing pipeline.
A crossing installation report will be issued for each crossing location. The volume numbers and report descriptions are as per Table 7. 2.7.3.1. Pipeline Crossing Report Volumes Pipeline Crossing Report Volumes (CP-SPE-0566A) Volume
Description
1
FE-C01 Crossing report
2
FE-C02 Crossing report
3
FE-C03 Crossing report
4
FE-C04 Crossing report
5
FE-C05 Crossing report
6
FE-C06 Crossing report
7
FE-C07 Crossing report
8
FE-C08 Crossing report
9
FE-C09 Crossing report
10
FE-C10 Crossing report
11
FE-C11 Crossing report
Table 7: Pipeline Crossing Report Volumes (CP-SPE-0566A)
2.7.3.2. Survey Report A survey and operational report template will be issued by the SM to the survey personnel. For this project a survey report will be issued to cover the technical results and operational details of the whole project. Volume 1 of 1, Survey Report, Rev 0 This volume will include a detailed description of the survey activities and results. This report will include but not be limited to the following: • • • • • • • • • •
Introduction and scope of work. Description of survey objectives. Description of utilised equipment, software, system parameters, barge/vessel, etc. Detailed positioning results. Mobilisation reports, detailing trials and calibrations. Summary of field operations. Personnel and equipments. Health, Safety and Environmental (HSE) issues. Geodetic and navigation parameters. Vessel offset diagram. Page: 11
CP-SPE-0566A - Survey Quality Plan - Rev 0
• 2.7.4.
Project daily reports.
Final Survey Report Within seven (7) days from the receipt of client comments on the draft final survey report, HSC should submit the final survey report, which shall include any revisions or amendments requested by client. A Comment Resolution Sheet shall be transmitted along with the final report. In the event that of any corrections are not applied; HSC shall give a justification clearly stating why these were not implemented. On completion of the final report, HSC shall provide digital copies of all final reports, AutoCAD as-built pipeline drawings and other relevant information on CDs/DVDs in native and pdf formats.
2.8.
Report Delivery Schedule Table 8 shows the delivery schedule and number of copies of the as-laid survey reports to be issued to the client on completion of the survey activities. Report Delivery Schedule Report Revision Crossing Installation Report Draft Final Survey Report Final Survey Report
Schedule
No. of Copies/Format
To be issued within twenty four (24) hours from the completion of each as-built survey. Within twenty eight (28) days from date of demobilisation of survey equipment from the vessel/ Within seven (7) days from the receipt of client comments.
N/A (To be submitted onboard). One (1) soft copy One (1) soft copy
Table 8: Report Delivery Schedule
2.9.
Demobilisation
2.9.1.
Project Demobilisation Upon completion of all survey activities to the client’s satisfaction, the survey vessel will proceed for demobilisation. The demobilisation will commence upon receipt of the written ‘permission for demobilisation notice’ from the client to confirm that all required survey has been completed.
2.9.2.
Project Backup Project data will be backed up on a daily basis to a suitable media (i.e. RDX Tapes/CDs/DVDs), thought the entire duration of the survey project. Two (2) separate copies of the project will be made and brought back to the Horizon Survey office. Note: On completion of survey operations the project directories will be cleaned of any temporary files. The project folder/files must be completed and up to date at the time of demobilisation prior to final backup and returning to the office. The project debriefing form is to be completed prior to the demobilisation and handed/transmitted to the PM at the first available opportunity.
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3.
QUALITY CONTROL
3.1.
Quality Policy and Objectives
3.1.1.
Quality Policy The Management of Horizon recognises the need to ensure that its services conform to customers' specified requirements in all aspects including professional, legal, safety and environmental criteria. Accordingly, Horizon has developed a Quality Management System to comply with the requirements of ISO 9001:2008/29001:2007. Horizon is committed to provide our customers with the highest quality survey and geotechnical services. We will enhance customer satisfaction by; • • • • • • •
3.1.2.
Employing qualified and experienced managerial and technical personnel who will ensure our work is performed to the highest professional standards and in accordance with the customer specifications. Providing training to the staff. Providing positive and comfortable working environment. Providing safe work place. Providing contemporary equipment. Submitting reports on time. Continually improving the effectiveness of the Quality Management System through periodic Management Reviews and Internal Audits.
Quality Objectives Horizon Survey’s Quality Management System has been implemented to achieve and sustain the following objectives: • • • • • • •
3.2.
Increase knowledge base for personnel. Improve equipment tracking efficiency for projects. Reduce equipment downtime on projects. Submit proposals on time. Submit reports on time. Improve project performance awareness. Reduce insurance claims.
Horizon Survey Organisation HSC is one of Horizon Group of Companies which provides survey services to the offshore industry in the Middle East and India. The management and company staff have resided and worked in the region for several years, and their experience, track record and regional knowledge is well established. HSC is being managed through an organization which proves of being efficient and successful (Refer to Appendix F for details).
3.3.
Standard QC Check List It is HSC’s standard QC practice that at least two senior staff members should ensure all activities are checked against standards and project requirements and that each particular activity is approved. Generally, any activity which has not been approved will have to pass in a loop of re-execution and QC till it gets approved. The quality control check list referenced in Appendix G is being employed as a QC reference during the execution of all HSC projects
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4.
PROJECT DELIVERABLE CHECK LIST Table 9 states the list of deliverables to be transferred from the vessel to HSC’s office throughout the duration of the project and at the time of demobilisation. CP-SPE-0566A - Deliverable Check List Item
Formats / Media Required
Personnel responsibilities and SQP awareness
Hard copy
QINSy configuration
PDF
Vessel offset diagram
AutoCAD 2000 & PDF
Geodesy computation check
PDF
Completed
Project Setup
Calibrations & QC DGPS health verification report
MS-Excel & PDF
Gyro calibration report
MS-Excel & PDF
Transit check report
MS-Excel & PDF
MBES patch test calibration report
MS-Word & PDF
Survey line logs
Hard copy/MS-Excel/PDF
USBL calibration
PDF
Reports Pre-installation reports (only where exceed tolerance) & related diagram Mattress installation summary reports
MS-Word & AutoCAD MS-Excel
Crossing installation reports & related diagram
MS-Word & AutoCAD
Survey reports (one per site/route)
MS-Word
Project daily reports
Signed hard copies/MS-Excel/PDF
Complete project directory
RDX tapes (2 Copies)
Project check list
Hard copy
24 hr data logging
DVD / HDD
Project Data
Table 9: CP-SPE-0566A - Deliverable Check List
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5.
HEALTH, SAFETY AND ENVIRONMENT All work shall be performed in a safe and efficient manner. All personnel shall be familiar with the Horizon Survey Health and Safety system. At the most basic level, offshore staff shall take sensible responsibility for their personal health and safety, and that of their co-workers. When venturing out on deck appropriate safety gear shall be worn at all times, this will include, but not limited to: • • • • • • • •
Coveralls. Safety helmet. Safety boots. Safety glasses. Ear defenders. Gloves. Work vests/life jackets. Safety harness.
Life jackets and continuous monitoring are mandatory when working near the side of the vessel or on the aft deck. HSC personnel shall abide by the company environment, health and safety policies and procedures whilst onboard and shall attend all relevant safety meetings, toolbox talks and drills. 5.1.
HSE Policy HSC recognises that the safety of people and the protection of the environment is a critical element of our business, and we are committed to conducting our operations in a safe and environmentally responsible manner. This will be achieved by adherence to a structured HSE Management System which addresses the responsibilities of the company’s management, staff, subcontractors and other parties involved in the performance of our operations. With regard to the Horizon Survey HSE Management System, we commit ourselves to the following: • • • • • • • •
Provide our employees and sub-contractors with a safe environment in which to perform their work. Provide a formal set of HSE related rules, procedure and guidelines within which our operations are to be performed, and demand strict compliance from our staff and sub-contractors. Provide training and advice to our employees in matters of HSE compliance. Encourage feedback and suggestions, and seek effective ways to implement them. Enforce a clear system of HSE accountability within our organisation. To continuously learn from all feedback and experiences by considering ways to prevent a future re-occurrence, and improving the way we deal with the relevant HSE issue. To execute all our work in such a way as to minimise the impact to the environment and preventing pollution. Comply with Statuary Government and Industry Legislation, Industry Best Practice and Client policies relating to Health and Safety and Environmental Protection.
Managing Director of Horizon Survey has the overall responsibility for ensuring this policy is implemented and fully supported. The system will be reviewed on an annual basis to assess its effectiveness. It is the responsibility of all HSC staff and contractors to ensure that the health and safety of all colleagues is maintained at all times.
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5.2.
Environmental and Waste Management Policy Horizon Survey’s Management System has been established with the objective to protect the environment and reduce and manage waste in accordance with local and international environmental practices. HSC actively maintains these standards to ensure that the survey services provided to the client are conducted in an environmentally safe and efficient manner. We commit to managing our environmental effects and wastes in compliance with our legal obligations. Furthermore, we will strive to continually improve all our operations and specifically commit to: • • • • •
5.3.
Work to achieve the environmental expectations of our staff, customers, suppliers and local community. Apply best practice standards for environmental management. Improve efficiency of operations to minimise water and raw material use, energy consumption, waste and pollution generation. Create awareness among our staff and suppliers of the potential environmental effect of operations with which they are involved, and how they can work towards minimising these environmental effects. Continue to conduct regular assessments of the environmental effects of our operations to identify potential areas for improvement, and to follow through with programs to achieve these improvements.
Drug and Alcohol Abuse Policy HSC takes drug and alcohol abuse as a serious matter and will not tolerate it. HSC absolutely prohibits the use of alcohol or non-prescribed drugs at the work place or while on company premises. It also discourages non-work place drug and alcohol abuse. The use, sale or possession of alcohol or nonprescription drugs while on the job or on company property may result in immediate suspension or discharge. HSC reserves the right to demand a drug or alcohol test of any employee based upon reasonable suspicion. Reasonable suspicion includes, but is not limited to, physical evidence of use, involvement in an accident, or a substantial drop off in work performance. Failure to take a requested test may lead to discipline, including possible termination. HSC also cautions against use of prescribed or over-the-counter medication which can affect your work place performance. You may be suspended or discharged if the company concludes that you cannot perform your job properly or safely because of using over-the-counter or prescribed medication. Please inform your supervisor prior to working under the influence of a prescribed or over-the-counter medication which may affect your performance. HSC will make every effort to assist its employees who wish to seek treatment or rehabilitation for drug or alcohol dependency. HSC will consider continued employment of such an employee as long as the employee adequately addresses continued concerns regarding safety, health, production, communication or other work related matters. You may also be required to agree to random testing.
5.4.
Stop Work Policy HSC believes that all accidents are preventable and empowers all employees, contractors, clients and guests to: • • •
Stop any job if they believe that it may cause harm to people the environment or assets. Refrain from actions that are considered a threat to HSE. Contact line managers in a culture of openness and trust to advise of any safety concerns that they have with regards operations they are involved in.
All HSC staff and contractors have a duty to stop any operation if to ensure that the health and safety of all colleagues is maintained at all times. Failure to stop an operation that is believed to be unsafe may make the individual culpable in the event of future investigations.
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APPENDIX A – EQUIPMENT LISTING & SPECIFICATIONS
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Survey Equipment The following survey equipment / software (or similar) will be present during this phase of the project: a. Surface Positioning and Orientation Systems: • •
C-Nav dual frequency DGPS. TSS Meridian Surveyor gyrocompass.
b. Underwater Positioning System: • • c.
Sonardryne 7707, USBL system. TSS Meridean Subsea gyrocompass (Including pitch & roll).
Digital Logging and Processing Systems: • • • • • • •
QPS hydrographic survey software (QINSy 8.0). Reporting computers. Remote monitors. AutoCAD drafting package. Digitizing, printing and plotting equipment. RDX tapes. Digital camera.
d. Bathymetric Systems: • •
Valeport CTD Monitor CTDS sensor. Simrad EM 3002 MBES system.
e. Seabed Imaging Systems; • f.
Sector Scan Sonar.
Communication Facilities: • • • •
SAT phone. Thuraya phone. GSM phones (if within range). Internet connection with independent computer.
g. Land Survey Equipment: •
Theodolite with tripod and solar filter (during land related calibrations only).
Note: During survey operations, the back-up C-Nav system will be installed/set-up to ensure continuity in the event that the primary system fails.
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GPS – C-Nav2000 GPS Hardware
The C-Nav [2000 RM] GPS receiver unit provides performance of several decimeters at either 1 or 5 updates per second. The receiver is ideally suited for positioning of dynamic and static vessels or vehicles on a global basis. The C-Nav [2000 RM] receivers feature 10 channels of continuous GPS satellite tracking contained within a compact, rugged, weatherproof housing. For ease of operation and system integration, the C-Nav GPS unit has a single, rugged, waterproof 8-pin connector that provides RS-232 serial ports, a CAN BUS and D.C power. During operation, the C-Nav GPS System can output a subset of NMEA-0183 messages, including QA/QC data, and RAW GPS measurement binary data, for archiving and post-mission kinematic post-processing analysis. The C-Nav [2000 RM] receivers are a single integrated package combining; antennas, geodetic quality dual frequency GPS receiver, communications link, data demodulator, and or control processor, which is rugged, reliable and able to withstand the offshore environment. The system is capable of receiving differential corrections from AP satellite as well as EA satellite. In the Middle East, the primary system will use AP satellite and the secondary system will use EA satellite. Specifications
Note: This specification is subject to change without notice.
www.horizonsurvey.ae
Gyro – TSS MERIDIAN SURVEYOR The new Meridian has been designed to be the smallest, lightest, most flexible and accurate mechanical gyrocompass available to commercial users. The new Meridian Surveyor boasts a wide range of interfaces to enable use on any marine vessel. The unit utilises a DTG gyro element which provides exceptional performance with accuracy unmatched by even the latest fibre optic designs. Unlike conventional spinning mass gyrocompasses, the Meridian Surveyor uses a dry tuned element (DTG) that removes the need for routine maintenance thereby significantly reducing cost of ownership. Hence the Meridian Surveyor provides reliable, maintenance free operation with an MTBF in excess of 30,000 hrs. Specifications Display type
360° compass card and VFD display
Settle point
0.1° secant latitude
Static accuracy
0.05° RMS secant latitude
Dynamic accuracy
0.2° secant latitude
Follow up speed
200°/sec
Settling time
10,000 hours)
Options • • • • •
Deeper rated towfish Stainless Steel towfish Lightweight Kevlar Towcable for shallow water use 60kHz operating frequency for increased range Towfish pitch, roll and heading sensors
• • • •
Towfish responder for acoustic tracking Towfish height off bottom measurement Towfish depth sensor Data Acquisition & Processing using a GeoPro Sonar Processor
Technical Specifications Transceiver - Model SS981 General Power requirements: Size: Weight: Temperature: Humidity: Mounting:
95/265VAC switchable, 40-60Hz, 50W, optional 24VDC. 43.2cm W x 45.7cm D x 18.7cm H. 16kg. Storage: -20 to 75°C Operating: -5 to 50°C. 10% to 95% RH, non-condensing. The unit is suitable for either bench or rack mounting.
Operating Specification Power output to tow vehicle: Key burst out: Key input:
150VDC ±3VDC, 100mA average, 320mA peak. 455kHz, pulse width selectable 16Vpp, PRR determined by key source. Positive CMOS or TTL, 10kW input impedance.
Receivers Modulation frequency: Bandwidth: Sensitivity:
Key out: Modes:
Port 135kHz, Starboard 65kHz. 15kHz. 6mV rms input produces 800mV rms output with a 20dB signal-to-noise ratio (all gain maximum). 5kΩ . 600Ω on all outputs. Gain: adjustable over 60dB range. TVG: -20 to +20dB maximum AGC: -34dB maximum. Selectable signal envelope or amplitude modulated 12kHz. 3.3ms minimum, 330ms maximum. 5Vpp, 12kHz, front panel push button or BNC input requiring CMOS or TTL level pulse. Produces visual mark on recording media. 0.6ms CMOS/TTL compatible. 100kHz and 500kHz operation. Raw signal and processed signal.
Front Panel Connectors BNC: Amphenol:
Seven each for signals and keys. MS3102A-22-34S for deck cable
Input impedance: Output impedance: Dynamic range:
Output: TVG delay: Event mark:
www.horizonsurvey.ae
SSS – GeoAcoustic Dual Frequency Technical Specifications Multiplexer - Model SS982 Transmitter Section Frequency: Power output: Pulse length: Pulse repetition rate: Protection: Efficiency: Receiver Section Port channel: Starboard channel: Bandwidth: TVG: Keyburst Frequency: Pulse length: General Power requirements: Size: Weight: Towfish Model 159D Tow Speed: Weight: Dimension: Frame: Nose:
Transducers Model 196D Source Level: Beamwidth: Sensitivity: Depression angle:
114/410kHz ±1% 3kW pulse ±20% 167µsec/88µsec ±1% 50 pulses per second maximum Open and short circuit protected Greater than 80% 114/410kHz, heterodyned to 135kHz 114/410kHz, heterodyned to 65kHz 20kHz Transmission loss curve compensated at both frequencies Approximately +40dB at 100m range 455kHz ±2% 300µsec for 114kHz operation 600µsec for 410kHz operation 150VDC at 100mA 10.2cm D x 34.5cm L 3.2kg in air, 0.45kg in water
1 to 12 knots 16.3kg, 22.5kg, or 38.6kg depending on ballast used 11.4cm diameter by 128.5cm long, 3 fins on tail protrude 7.5cm Cast aluminium with shear release carry handle/tow point Shock absorbing, abrasive resistant urethane. Cavity can carry small auxiliary transducer
223 ±3dB re 1µPa@ 1m 114kHz - 50° by 1° 410kHz - 40° by 0.3° -190dB re 1V/µPa 10° ±1° down
Note: This specification is subject to change without notice.
www.horizonsurvey.ae
APPENDIX B – CLIENT SUPPLIED INFORMATION
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Sequence
Crossing
Client Supplied Crossing Details ‐24"FZA‐KHARG Pipeline/cable ID Quantity support No. Support Type
KP
Support Coordinates Easting Northin
Crossing Coordinates Easting Northin
Support Angles to Route to North Grid
1
FE‐C01
Unknown
4+4
FE‐S01
A
7.690
424918.86
3232565.29
424921.52
3232569.47
33.00
82.00
2
FE‐C02
KHARG to LAVAN,SIRI cable
1+1
FE‐S02
A/Neoprene
8.705
424372.42
3231718.20
424372.42
3231718.20
33.00
93.00
3
FE‐C03
Terminal AC2882/Oil pipeline ARDESHIR to DARIUS
1+1
FE‐S03
A/Neoprene
18.957
418814.96
3223103.16
418814.96
3223103.16
33.00
68.00
4
FE‐C04
Falcon‐S07a‐RPL‐PL06‐Abridged
1+1
FE‐S04
A/Neoprene
69.113
391626.85
3180956.18
391626.85
3180956.18
33.00
73.00
5
FE‐C05
FOG cable
1+1
FE‐S05
A/Neoprene
73.880
389042.86
3176950.49
389042.86
3176950.49
33.00
69.00
6
FE‐C06
Falcon‐S06b‐RPL‐PL01‐Abridged
1+1
FE‐S06
A/Neoprene
74.827
388529.03
3176153.95
388529.03
3176153.95
33.00
71.00
1
FE‐S07
A/Neoprene
96.804
376609.94
3157672.59
24.00
66.00
1
FE‐S08
A/Neoprene
96.804
376613.94
3157681.76
24.00
66.00
7
11
8
FE‐C07
FE‐C08
FE‐C09
Sub sea Cable for LAVAN,SIRI,KHARG and BAHREGAN District
Sub sea Cable for LAVAN,SIRI,KHARG and BAHREGAN District
376615.94
3157686.34
1
FE‐S09
A/Neoprene
96.804
376617.94
3157690.92
25.00
69.00
1
FE‐S10
A/Neoprene
96.804
376622.20
3157699.95
25.00
69.00
1
FE‐S11
A/Neoprene
100.513
375075.20
3154330.30
34.00
56.00
1
FE‐S12
A/Neoprene
100.513
375081.31
3154339.46
34.00
56.00
1
FE‐S13
A/Neoprene
100.513
375087.42
3154348.63
34.00
56.00
1
FE‐S14
A/Neoprene
101.010
374850.37
3153883.41
21.00
67.00
1
FE‐S15
A/Neoprene
101.010
374854.30
3153892.61
21.00
67.00
16" product flow line F‐17 to FZ
375081.31
374856.34
3154339.46
3153897.80
1
FE‐S16
A/Neoprene
101.010
374858.38
3153902.99
21.00
67.00
1
FE‐S17
A/Neoprene
101.010
374862.01
3153912.24
21.00
67.00
1
FE‐S18
A/Neoprene
101.802
374557.73
3153154.64
67.00
25.00
1
9
10
FE‐C10
FE‐C11
FE‐S19
A/Neoprene
101.802
374561.20
3153162.94
16" product flow line F‐17 to FZ
374563.05
67.00
25.00
3153167.03
1
FE‐S20
A/Neoprene
101.802
374564.67
3153171.25
67.00
25.00
1
FE‐S21
A/Neoprene
101.802
374568.14
3153179.55
67.00
25.00
4+4
FE‐S22
B
101.960
374523.84
3152924.33
4+5
FE‐S23
B
101.960
374227.75
3152949.70
4+6
FE‐S24
A
101.960
374532.64
3152980.55
APPENDIX C – SURVEY PARAMETERS, TIDES AND UNITS
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GPS Geodetic Parameters The geodetic parameters for the WGS84 Spheroid and Datum are as per Table 10. GPS Geodetic Parameters Parameter
Value
Spheroid
World Geodetic System 1984 (WGS84)
Semi-Major Axis (a)
6 378 137.0 m
Semi-Minor Axis (b)
6 356 752.314 m 2
First Eccentricity Squared (e )
0°6 694 379 990
Inverse Flattening (1/f)
298.257 223 563
Datum
ITRF 2000 – epoch 1997.0
Source: USDoD Table 10: GPS Geodetic Parameters
Project Geodetic Parameters The Spheroid Projection and Transformation parameters as per Table 11 are to be utilised throughout the duration of the project and within this procedure document. Project Geodetic Parameters Parameter
Value
Spheroid
WGS84
Semi-Major Axis (a)
6 378 137.0 m
Semi-Minor Axis (b)
6 356 752.314 m 2
First Eccentricity Squared (e )
0°6 694 379 990
Inverse Flattening (1/f)
298.257 223 563
Datum
ITRF 2000 to epoch 1997.0
Projection
Universal Transverse Mercator
Central Meridian (CM)
51° E (UTM Zone 39N)
Latitude of Origin
0°
False Easting
500 000 m
False Northing
0m
Scale Factor on CM
0.999 60
Transformation Parameters (ITRF 2000 – epoch 1997.0 to ITRF 2000 to epoch 1997.0) Translation
0°0 dx
0°0 dy
0°0 dz
Rotation
0°0” rx
0°0” ry
0°0” rz
Scale Factor
0°0 ppm
Rotation Convention Source
Coordinate Frame Rotation (Right Handed Convention) HSC
Table 11: Project Geodetic Parameters
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Geodetic Computation Check On completion of mobilisation a geodetic computation check will be conducted using the online navigation software to transform a coordinate from ITRF 2000 – epoch 1997.0 datum to the ITRF 2000 to epoch 1997.0 local datum which will be utilised during the project. A computation check test coordinate with results is stated as per Table 12. Geodetic Computation Check Spheroid / Datum WGS84 Spheroid ITRF 2000 – epoch 1997.0
Geographical Coordinates
Grid Coordinates
Latitude
Longitude
Easting
Northing
26° 36’ 39.098”
051° 47’ 30.875”
578 839.62
2 943 579.70
Source: HSC Table 12: Geodetic Computation Check
Vertical Control All bathymetric data acquired during the survey will be reduced to L.A.T. by using the simplified harmonic method of tidal prediction. Tidal harmonics for the field were derived from the Admiralty Co-tidal Atlas for the Persian Gulf, NP 214. The tables below list the tidal harmonics for the sites to be surveyed.
Tidal Harmonic Constituents FZ-A
Location Position (WGS84)
28°29'49.73"N, 49°42'59.687"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
268.17
0.06
S2
238.93
0.02
K1
309.47
0.32
O1
261.16
0.21
Zo = 1.2x(M2H+S2H+K1H+O1H)
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Tidal Harmonic Constituents Location Position (WGS84)
28°34'32.98"N, 49°45'51.519"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
267.12
0.09
S2
265.46
0.03
K1
307.69
0.33
O1
260.04
0.21
Zo = 1.2x(M2H+S2H+K1H+O1H)
0.79
Tidal Harmonic Constituents Location Position (WGS84)
28°39'7.765"N, 49°49'7.97"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
265.64
0.13
S2
285.89
0.04
K1
305.94
0.33
O1
258.45
0.22
Zo = 1.2x(M2H+S2H+K1H+O1H)
0.86
Tidal Harmonic Constituents Location Position (WGS84)
28°43'42.477"N, 49°52'24.701"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
265.18
0.16
S2
296.33
0.05
K1
304.34
0.34
O1
256.93
0.22
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Tidal Harmonic Constituents Location Position (WGS84)
28°48'17.114"N, 49°55'41.714"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
265.68
0.20
S2
304.35
0.07
K1
302.76
0.34
O1
255.54
0.22
Zo = 1.2x(M2H+S2H+K1H+O1H)
0.99
Tidal Harmonic Constituents Location Position (WGS84)
28°52'51.675"N, 49°58'59.01"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
265.79
0.23
S2
311.90
0.08
K1
301.33
0.35
O1
254.42
0.22
Zo = 1.2x(M2H+S2H+K1H+O1H)
1.05
Tidal Harmonic Constituents Location Position (WGS84)
28°57'26.16"N, 50°2'16.59"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
266.23
0.26
S2
317.94
0.09
K1
299.99
0.35
O1
253.36
0.23
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Tidal Harmonic Constituents Location Position (WGS84)
29°2'0.568"N, 50°5'34.457"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
266.46
0.28
S2
322.65
0.10
K1
298.85
0.36
O1
252.42
0.23
Zo = 1.2x(M2H+S2H+K1H+O1H)
1.17
Tidal Harmonic Constituents Location Position (WGS84)
29°6'34.899"N, 50°8'52.611"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
266.96
0.31
S2
327.36
0.12
K1
297.70
0.37
O1
251.55
0.23
Zo = 1.2x(M2H+S2H+K1H+O1H)
1.23
Tidal Harmonic Constituents Location Position (WGS84)
29°11'9.15"N, 50°12'11.054"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
267.32
0.34
S2
330.44
0.13
K1
296.60
0.37
O1
250.77
0.24
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Tidal Harmonic Constituents Location Position (WGS84)
29°14'53.61"N, 50°16'38.824"E
Constituent Time Zone
GMT+04.00
Prediction Method
Simple Harmonic Method
Datum
LAT Constituent
G (Degrees)
H (metre)
M2
265.69
0.36
S2
330.86
0.14
K1
295.37
0.38
O1
249.79
0.24
Zo = 1.2x(M2H+S2H+K1H+O1H)
1.34
Survey Units The survey units of measure used during the project are represented in Table 13. Project Survey Units Type
Linear units
Unit Local Time (GMT + 03:30 hours). Navigation data will be logged in GMT + 00:00 hours. International Metres (m).
Velocity
Metres per second (m/s).
Angular units
Degrees, Minutes, Seconds ( ° ‘ “ ).
Time
Table 13: Project Survey Units
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APPENDIX D – SYSTEM VERIFICATIONS & CALIBRATIONS
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SYSTEM VERIFICATIONS Prior to the survey acquisition, a number of system verifications and checks should be carried out during the mobilisation stage in port and later in field to ensure that all systems are operational and working according to the planned operating parameters and tolerances. In-Port Verifications The following verification and checks must be carried out during the mobilisation stage and prior to the vessel sailing to site. Note: If one or more of the following verification/checks are unable to be conducted prior to the vessel sailing the Survey and Project Managers must be contacted and informed to replace it with alternate verification/check. All positional related calibrations (DGPS, Transit Fix, etc), should be carried using PPS mode. The verifications, calibrations and checks to be conducted in-port are: • • • • • • •
Vessel offset measurements. DGPS verification for primary and secondary positioning systems. Gyro alignment calibration. Static USBL Calibration Draft measurement for underwater sensors (USBL and MBES transducer, etc). Water height measurement for height reference. Wet and acquisition testing for all survey sensors.
- Vessel Offset Measurements The C-Nav antenna should be the designated as the Common Reference Point (CRP) for the horizontal control on the vessel. All offsets of different navigation and survey sensors are to be measured to the primary C-Nav antenna, which has to be located (if applicable) above the bridge on the centreline of the vessel. All offsets to be measured using land survey techniques during vessl mobilisations and to be independently rechecked manually using measure tapes. The acquired measurements should be reduced, logged, entered to the navigation system and provided to the project survey data processors onboard. - Static DGPS Health Verification A DGPS health verification should be carried out in port prior to the vessel sailing. The DGPS health verification should be carried out for both primary and secondary DGPS systems independently. There are three different methods to carry out the verification. Method 1: Set up the GPS antenna over a well known land control station in the port and the received DGPS positioning data to be logged for a period of at least 60 minutes. The mean position value derived should be compared against the known position of the land control station. If it is not possible to locate the GPS antenna over a land control station, X & Y offsets should be measured from the land control station to the antenna. The comparison should take the physical offset between the land control station and the antenna into consideration. Method 2: Utilise land survey techniques, by setting up the total station over a nearby land control station, to carry out set of observations to the GPS antenna accompanied with simultaneous logging for the DGPS position data. The results of both survey sessions should be reduced based on the time of each land observation, the mean values to be calculated and compared against each other.
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Note: During this method, the surveyor should make sure to synchronise his watch to the navigation system time and to record the time at each land observation to be used later during data reduction.
Quay Side
Diagram 2: DGPS Verification Diagram, First Method
Quay Side
Diagram 3: DGPS Verification Diagram, Second Method
Method 3: Compare the position of both primary and secondary DGPS systems against each other. In this method, a simultaneous logging session for the DGPS positioning data for both primary and secondary GPS antennas should be recorded for a period of at least 60 minutes. The derived position values should be reduced and compared against each other considering the physical distance between the two antennas. Quay Side
Diagram 4: DGPS Verification Diagram, Third Method
Note: During this method, the surveyor should make sure to enable the differential GPS (DGPS) correction. Raw GPS position information should not be used during the DGPS verifications. During this method, the surveyor should make sure to eliminate all the possible causes of the known sources of GPS errors to ensure the best quality of the data acquired.
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- Gyrocompass Alignment Calibration On completion of the DGPS verifications, a gyrocompass alignment calibration shall be conducted by the surveyors to determine the constant misalignment (difference) between the vessel gyro heading and the survey gyrocompass heading. The gyrocompass misalignment is variable and depending on the way and where the gyrocompass is installed. This misalignment is different from the fixed gyro error which it has to be derived in workshop by calibrating the gyro against a well known baseline. The fixed gyro error (if exists), should be written on the gyro. Note: Prior to the commencement of calibration operations, the surveyor should ensure the gyrocompass has had sufficient time to settle, and that the unit is firmly secured to the deck. The gyro correction should be set to zero within the navigation software prior to the gyro alignment calibration, unless, the value of the fixed gyro error is not equal zero. In this case, this error should be corrected by applying the same value with opposite sign to the navigation software prior to running the misalignment calibration. There are three different methods to carry out the gyrocompass misalignment calibration. Method 1: Utilise the land survey techniques, by setting up the total station over a nearby land control station, to carry out set of observations to the bow and mid-stern of the vessel to calculate the grid heading of the vessel accompanied with simultaneous data logging (1 second update) for the gyrocompass heading data. The results of both survey sessions should be reduced based on the average time of each land observation set, the mean values to be calculated and compared against each other. Once one set has been completed the vessel will be turned through 180° and the calibration will be repeated. Note: During this method, the surveyor should make sure to synchronise his watch to the navigation system time and to record the time at each land observation to be used later during data reduction. Also, for each set, one shot to the bow and another to the mid-stern, the observations should be quick to avoid the significant vessel movements between observations. The convergence between true and grid headings should be taken into consideration during the calculation of this method.
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Quay Side
Diagram 5: Gyro Calibration Diagram, First Method
Quay Side
Diagram 6: Gyro Calibration Diagram, Second Method
Method 2: Utilising the quay side with a well known heading to be used as a baseline to calculate the gyrocompass misalignment. Offset measurements from the quay side to two different points on the side of the vessel, one point towards the stern and the other towards the bow, will be simultaneously acquired utilising measure tapes (measurements will be undertaken over a period of 30 minutes). These tape measurements will be accompanied with simultaneous data logging (1 second updates) for the gyrocompass heading data. The measurements should be corrected to be calculated to the vessel centreline and the vessel heading to be calculated. The results of both survey sessions should be reduced based on the average time of each tape measurement set, the mean values to be calculated and compared against each other. Upon completion of the calibration the vessel will be turned through 180° and once the gyro has had time to settle, the calibration will be conducted once more. Note: During this method, the surveyor should make sure to synchronise his watch to the navigation system time and to record the time at each tape measurement set to be used later during data reduction. The convergence between true and grid headings should be taken into consideration during the calculation of this method. Method 3: Utilise two independent DGPS systems to calculate the vessel heading. In this method, the GPS antennas have to be installed at the vessel bow and the mid-stern to form a baseline collinear with the vessel centreline. This baseline should be as long as possible to ensure the best quality of the data acquired. These DGPS data acquisition will be accompanied with simultaneous data logging for the gyrocompass heading data. The received DGPS positioning data should be logged for a period of a minimum of 60 minutes at an update rate of 1 second. The results of the DGPS baseline logging session will be reduced and used to calculate the vessel grid heading. The heading value will be compared against the mean value of the gyro heading data. Once the logging period has been completed the vessel will be turned through 180° and the gyro will be allowed to settle prior to the calibration being repeated.
Quay Side
Diagram 7: Gyro Calibration Diagram, Third Method
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Note: During this method, the surveyor should make sure to eliminate all the possible causes of the known sources of GPS errors to ensure the best quality of the data acquired. The convergence between true and grid headings should be taken into consideration during the calculation of this method. Upon the completion of gyrocompass calibration, the algebraic sum of both the fixed error and the misalignment calibration should be entered to the navigation software. - Static USBL Calibration On completion of the gyrocompass calibration and installation of the underwater positioning system (USBL), a static USBL system calibration should be carried out to detect and rectify gross error in the installation of the USBL system transducer. The static USBL calibration to be carried out by logging the underwater positions for two transponders deployed simultaneously to a depth of one (1 m) above the seabed level. The transponders have to be deployed at the vessel bow and the mid-stern to form a baseline collinear with the vessel centreline. The USBL underwater positioning data for both transponders should be recorded for a period of at least 15 minutes. The USBL data acquisition will be accompanied with simultaneous data logging for the gyrocompass heading data. The results of the USBL logging session should be reduced and used to calculate the grid heading of the baseline between the two transponders. The calculated baseline heading value to be compared against the mean value of the gyrocompass heading data, the difference will represent the heading misalignment for the USBL system transducer. Note: Prior to the commencement of calibration operations, the surveyor should ensure the gyrocompass calibration result has been entered to the navigation software. The USBL corrections should be set to zero within the USBL surface unit and the navigation software prior to the USBL calibrations. In Field Calibrations The following calibrations / activities are to be conducted in field and prior to and during survey operations. • • • • •
Transit check. Sound velocity measurements. USBL calibration. MBES calibration. Sector Scan Sonar verification.
- Transit Fix Check To confirm that the correct geodetic parameters have been entered into the survey software a Transit Fix Check shall be conducted around an existing platform in both a clockwise and anti-clockwise direction. - Sound Velocity Measurements A velocity cast shall be conducted upon arrival on location to measure the velocity of sound waves in water. The average value from the velocity cast shall be inputted into the USBL / MBES system. Velocity casts shall be conducted once a day during survey operations.
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- Dynamic USBL Calibration Introduction The USBL (Ultra Short Base Line) system is an underwater navigation system that measures range and bearing to a transponder which is attached to the towed SSS or SBP system. Range and bearing are derived from phase difference measurements of the return acoustic signal arriving at the orthogonal transducer elements. Real world coordinates of the transponder are to be calculated by applying the range and bearing to the known real-world coordinates of the USBL transducer. The latter coordinates are computed through the measured offsets from the Common Reference Point (CRP) of the vessel and the application of simultaneous vessel heading, pitch and roll values. The accuracy of a USBL system decreases with range so it is important to check for (and remove) all transducer misalignment and range scale errors. A small angular misalignment of the USBL transducer head can translate to a significant positional error that increases with distance. Similarly an error in the range measurement will increase with distance without the application of an appropriate range scale correction factor. To find these errors, the USBL calibration is to be conducted in two stages by manoeuvring the vessel in a predetermined pattern around a known position transponder deployed close to the seabed. Preparation for Calibration A reference transponder will be deployed on to the seabed at a suitable location within or immediately adjacent to the survey area. Ideal sea conditions for the calibration of the USBL system are calm seas and slack tide (no current). At the chosen calibration location, the vessel will be as stationary as possible prior to deployment of the transponder. The transponder should be equipped with static release for easy retrieval upon the completion of the calibration. Also, a sufficient weight and flotation buoy should be used to ensure that the transponder is vertical and does not move during the calibration. It is necessary that the following operations should have been completed prior to the calibration: • • • • •
Verification of survey DGPS system. Application of a valid survey gyro correction. Measurement of VoS. Selection of calibration site in deeper water than the survey area. Removal of previous correction values from the USBL system.
The transponder will be deployed by the survey crew from a point on the vessel free of obstructions. The tidal drift and current will be considered prior to deployment so that the transponder is launched from the most favourable side/point of the vessel. There are two methods to conduct the dynamic USBL calibration. Calibration Method 1 The USBL calibration will be performed on arrival at site. This will be achieved by conducting the following two consecutive calibration stages: First stage, offset calibration and second stage, orientation calibration. The first stage is necessary to check that the measured offsets between the USBL transducer and the vessel common reference point (CRP) are accurate in the X, Y and Z axis. The first stage, also, calculates an accurate transponder position and depth to be used for the second calibration stage. The second stage is required to calculate the transducer pitch, roll and heading installation misalignments. Correction values for pitch and roll errors are to be obtained by comparing the angular misalignments between the transducer and the true horizontal and vertical planes. The orientation error, angular difference between the bow of the transducer and the vessel’s centreline, to be also obtained. Finally, a correction for range scale is to be found by comparing the actual transponder position with observations by the USBL system. Page: 33
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Stage 1: Offset Calibration The calibration will be undertaken from the vessel positioned directly over the transponder recording its position on the seabed, either on fixed four headings or a variable heading where the ship rotates slowly through 360°. During this check, a minimum of one hundred fixes will be recorded. This process will be conducted in both a clockwise, and anti clockwise direction. A maximum deviation off the initial position by 20 m should be maintained. USBL calibration software will then used to remove rogue USBL data points then iteratively reduce the data spread using least squares adjustment method. The accurate transponder position and the XYZ offset will be obtained by the software.
Diagram 8: Dynamic USBL Calibration, First Method, Stage 1
The calculated offsets will be compared with the known offsets from the vessel CRP to the USBL transducer. Also, the calculated transponder position will be used during the second stage of calibration. Stage 2: Orientation, Pitch, Roll and Range Scale Calibration The second stage is designed to detect and quantify pitch, roll, and horizontal alignment errors. The vessel will set up at four quadrants evenly distributed around the transponder. The vessel heading should remain the same for each point selected and as a general guide the transponder should be ahead, astern and a right angles to the vessels port and starboard sides during the data gathering. To achieve this, the best setup, is for the vessel to keep its head into the weather (preferred heading), and to calculate the quadrant positions from there, the horizontal range between the vessel and the transponder should be one and a half times the water depth. Fixes taken must be evenly distributed around the transponder. At least one hundred fixes will be logged per quadrant based on the sea, wind and current conditions.
Diagram 9: Dynamic USBL Calibration, First Method, Stage 2
Using the QINSy USBL calibration module, the logged data will be processed to solve for the following parameters in one least squares adjustment: • • • • • •
X and Y position of the transponder; Pitch component (contains residual error in VRU pitch measurement plus transducer vertical misalignment); Roll component (contains residual error in VRU roll measurement plus transducer vertical misalignment); Heading component (contains residual error in the horizontal misalignment of the transducer plus the gyro deviation); Scale error; Standard deviation of the transponder position.
It is anticipated that any scale errors will almost exclusively be caused by incorrect determination of the VoS in the water column. The second stage will be repeated with the vessel setting up on the reciprocal heading. Page: 34
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The quality of the calibration will be determined by examining the following parameters: • • • • •
Percentage of processed data passed (preferably above 70%); Derived Easting and Northing is within limits (5 m) of deployed position; Fixed range value below 5 metres; Standard deviation of Transducer Position (Tp) spread should be below 10 m, and the value after corrections applied smaller than before corrections applied; Range factor as close to 1°0 if possible.
Calibration Method 2 In this method, the vessel must be sailed around or across the transponder according to a predefined pattern to ensure balanced USBL data is obtained. To ensure that effect of time difference between surface navigation data and USBL data are kept to a minimum the vessel should be sailed slowly along its predefined course. The pattern to be sailed is centred on the position of the seabed USBL transponder. The point of closest approach of all the lines is to be approximately equivalent to the water depth. The lines start and end approximately 3 to 4 times the water depth away from the transponder. The orientation of the pattern is up to the vessel captain and survey crew to decide based on the sea and current conditions. Diagram 10: Dynamic USBL Calibration, Second Method
Calibration Verification After corrections have been applied, a verification of the calibration is to be conducted by comparing realtime observations with the actual transponder position. A navigation line of length 200 m will be sailed at an offset of 50 m on either side of the transponder while simultaneously logging data. The line will be run for a second time in the opposite direction. Data will then processed and compared with the actual transponder position to check the positional accuracy of the USBL system and was to be within the acceptable limits. Note: Once the transponder is on the seabed, a surface position manual fix for the deployment point should be recorded by the surveyor. The deployment water depth should be also recorded. The USBL corrections should be set to zero within the USBL surface unit and the navigation software prior to the USBL calibrations.
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- MBES Calibration A MBES calibration shall be conducted prior to the commencement of survey operations. The following VoS Profile is to be carried out prior to the MBES calibration: In order to determine the Roll, Pitch and Heading corrections, QINSy survey software features a built in utility for MBES calibration patch tests. A patch test requires the following line configuration to be run: • • • •
Latency:One line over an existing seabed feature, same direction but different survey speed. Roll: Two lines over a flat area in opposite direction. Pitch: Two lines over an area with slopes in opposite direction. Yaw: Two lines over an area with slopes and lines overlapping half the swath width.
Latency Test To complete the latency test, one line will be surveyed in perpendicular to an existing seabed feature. The line will firstly be conducted at a speed of 2 knots. Then line will then be re-run at a speed of approximately 6 knots. If the vessel cannot manoeuvre /remain on line at 2 knots, run the minimum speed is to be attained. The second line must be run at 2 x first line speeds. A delay will be accurately detected up to 10 – 50 ms.
Roll Test Two cross profiles will be obtained by performing two co-linear survey lines (both at standard survey speed approximately 4 knots) on reciprocal headings over a flat section of seabed close to the site, the deeper the seafloor, the more accurate the result; hence scout for the deeper are to conduct this calibration. •
If observed roll exceeds 5°, then the MBES alignment and motion sensor calibration need to be checked. • If different roll angle were observed for a number of line-sets, the motion sensor alignment needs to be checked.
Pitch Test Two profiles will be obtained by performing two co-linear survey lines (both at standard survey speed) on reciprocal headings directly over an area with slope. If possible, a location should be chosen which has a slope over a relatively flat featureless seabed. In general the steeper the slope, the more accurate the determination of the pitch error will be. •
From the observations, if the pitch exceeds 10°, then the MBES alignment and the motion sensor calibration needs to be checked. • If a different roll angle is observed for a number of line-sets, then the motion sensor alignment needs to be checked.
Yaw Test Two data sets will be obtained by performing two parallel, co-directional survey lines (both at standard survey speed, approximately 4 knots) with 25% overlap over an existing seabed feature.
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True/Grid Headings and Convergence Calculations
Diagram 11: Convergence Calculations
- Area / Line is West of Central Meridian For line AB, the magnitude of the line grid heading (angle) is greater than the magnitude of the line true heading (angle) by the convergence angle (C), refer to Diagram 11. Gangle > Tangle Gheading = Theading – Convergence, where the convergence is –ve to the west of Central Meridian. Then, the calculation of the grid heading relative to the true heading will be as follows: Gheading = Theading + Absolute Convergence Value - Area / Line is East of Central Meridian For line AB, the magnitude of the line grid heading (angle) is lesser than the magnitude of the line true heading (angle) by the convergence angle (C), refer to Diagram 11. Gangle < Tangle Gheading = Theading – Convergence, where the convergence is +ve to the east of Central Meridian. Then, the calculation of the grid heading relative to the true heading will be as follows: Gheading = Theading - Absolute Convergence Value
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APPENDIX E – PROCESSING OUTLINES
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Processing of Bathymetric Data During processing of bathymetric data the following checks shall be preformed: 1. Gross error check of the bathymetric data by means of comparison with water depths recorded during velocity profiles. 2. Draft measurements are correct for both frequencies in the SBES system. 3. Correct vessel offsets are applied to the corresponding sensors. 4. Data acquired by the SBES is matching in different directions and for different acquisition times. 5. Data acquired by the SBES is matching the data acquired by the MBES. 6. Data acquired on the current project matches data recorded on previous projects for the same area. Presented below are the main steps in which the bathymetry data is processed onboard the vessel: 1. Draft and Offset verification • • •
Verify the MBES and SBES drafts by actual draft measurement. Verify the MBES and SBES node location according to the vessel offset diagram. Conduct a bar check to verify the correctness of draft, sound velocity and other settings in the echo sounder units.
2. Sound Velocity • • •
Conduct regular sound velocity measurement by deploying CTD sensor twice a day during the survey. Enter correct sound velocity into the SBES and MBES units and provide a velocity profile cast for MBES processing. Verify correctness of sound velocity profile by looking at shape of MBES swath. Smiley shape will indicate possible incorrect sound velocity.
3. Tides • •
Tidal predictions as per the tidal harmonic constituents for the survey area. Verify tide by overlaying crossed line which being surveyed in different time. Also verify the applied tides by manual applying tide into raw data.
4. Motion Sensors • • • •
Verify the offsets and liver arms applied to motion sensor’s software. Verify correctness of motion sensors output by looking at the values in graphic mode and comparing existing motion sensors all together. Verify correctness of applied heave on SBES by comparing raw and heave applied single beam bathymetry and associated heave data. Verify correctness of applied pitch, roll and heave on MBES data by looking at swath and coverage of individual files and overlying on each other.
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APPENDIX F – HORIZON SURVEY ORGANIZATION CHART
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APPENDIX G – QUALITY CONTROL
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Horizon Survey’s Standard QC Check List Check ID A
QC Activity Office - Preparation Stage
01
Development of the notice of project award (NOPA)
02
Contractual technical requirements handed to survey department
03
Special client requirements handed to survey department
04
Client supplied information and databases handed to survey department
05
Project schedule handed to survey department
06
Reporting schedule handed to survey department
07
Development of Standards Quality Plan (SQP)
08
Development and compilation of standard Field File (FF)
Development & compilation of Field CD(s), this to include: 09
Standard survey subdirectory
10
Project Daily Report (PDR), updated template
11
Survey/calibration/verification forms and templates
12
Land survey station descriptions and details
13
Latest vessel diagram
14
Client supplied information
15
Latest HSC database and information
16
Survey quality plan (SQP)
17
Previous surveys within or nearby the project location
18
Reporting templates and base chart
19
Project blank field book(s) and relevant documents
20 B
Carry out project briefing and issue the briefing form Offshore - Mobilisation Stage
Harbour checks and verifications: 01
Logbook compilation & update for offshore activities in detail
02
PDR compilation & update for offshore activities
03
Vessel offset diagram
04
Draft measurements and pole markings
05
Land survey observations
06
Static DGPS health verification
07
Gyro alignment calibration
08
QINSy configuration
09
Geodetic computation check
10
Static USBL calibration
11
Bar check
12
Geophysical equipment and acquisition parameters setup
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Horizon Survey’s Standard QC Check List Check ID
QC Activity
Wet testing for geophysical equipment and spares: 13
CTDS/TSDip
14
SBES
15
MBES
16
SSS
17
Chirp
18
Pinger
19
Sparker
20
Magnetometer
21
Sector scan
Functionality checks for surface units: 22
SBES
23
MBES
24
Coda system
25
Thermal Printers
26
USBL unit
27
Magnetometer unit
28
Levelling and acquisition software (2D seismic surveys)
Functionality checks for heavy gear and spares: 29
Vessel Crane
30
Small boat launching and recovery system
31
ROV launching and recovery system (ROV surveys)
32
SSS winch
33
Magnetometer winch
34
Coring winch
35
Compressors (2D Seismic surveys)
36
Air guns (2D Seismic surveys)
37
Streamer winch (2D Seismic surveys)
Functionality and wet test for ROV surveys: 38
Thrusters
39
Flotation system
40
Cameras
41
Depth sensors
42
Heading sensor
43
Sector scan
44
Profilers
45
Pipe tracker
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CP-SPE-0566A - Survey Quality Plan - Rev 0
Horizon Survey’s Standard QC Check List Check ID
QC Activity
46
Manipulator
47
CP Meter
48
Survey-bridge communication functionality check
49
Graphic repeaters checks
50
LAN communication and data speed checks
51
Printers, digitizers and plotters check
52
Consumables, oil, filters and spare parts check
Checks and verifications before data acquisition: 53
Sea trials nearby the mobilization port using all sensors
54
Dynamic DGPS verification
55
Dynamic USBL calibration
56
MBES calibration
57
Updated and final QINSy configuration
C
Offshore - Online QC 01
Sound velocity casts to be run on 6 to 12 hours bases
02
Draft measurement to be run on daily bases
03
Draft measurement to be run after bunkering
04
Compilation of survey line logs.
05
Compilation engineering line logs.
06
Compilation geophysical line logs.
The following end of line statistics to be recorded: 07
Minimum and maximum distance off-line
08
Minimum and maximum number of satellites
09
Minimum and maximum PDOP, HDOP & VDOP
10
Minimum and maximum differential age
11
Minimum and maximum feather angle (2D Seismic surveys)
12 D
QC of the acquired geophysical data Offshore - Reporting
01
Compilation of survey results report(s)
02
Compilation of survey chart(s)
03
Follow up and integration of 2D Seismic report(s) (2D Seismic surveys)
04
Compilation of project operational report(s)
E
Office - QC for Offshore Data 01
Receive and check geophysical data samples
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CP-SPE-0566A - Survey Quality Plan - Rev 0
Horizon Survey’s Standard QC Check List Check ID 02 F
QC Activity Receive and check field and/or updated survey reports Office - Completion of Offshore Operations
01
Carry out project de-briefing and issue the de-briefing form
02
Upload all project data onto the company’s main server
G
Office - Reporting 01
Completion of the remaining reporting (if applicable)
02
Check the project, client, logos, revision, date details
03
Check the geodetic, tidal and unit details
04
Check the location map and all report attachments
05
Review and check the vessel offset diagrams
06
Review and check for the geophysical interpretation
07
Review and check for the data examples
08
Review and check for the field operations diary of events
09
Review and check the equipment and personnel details
10
Check the executive summary against the report contents
11
Check for the grammar, spelling and standard formats
Check the report contents against the survey charts: 12
Project, client, logos, revision, scale, date and signature list.
13
Geophysical interpretation
14
Man-made feature coordinates and KPs
15
Seabed feature coordinates and KPs
16
Bathymetric information
17
Geodetic information
18
Tidal Information
19 H
Final QC after the update of corrections/remarks Office - Charting & CAD
01
Processing / reprocessing (if applicable)
02
Check/Update base chart against CAD Standards
03
Check P/F coordinates against client DB/HSC DB/previous surveys
04
Update chart background from databases (client/previous surveys)
05
Chart finalisation and plot for QC
06
Final QC after the update of corrections/remarks
07
Plotting of chart copies as per required by the PM
08
Creating of PDF digital copy
Page: 46
CP-SPE-0566A - Survey Quality Plan - Rev 0
Horizon Survey’s Standard QC Check List Check ID
QC Activity
09
Binding of the AutoCAD drawing file
10
Cutting and folding of charts
I
Office - Report Dispatch 01
Report destination and contact list to be finalised & approved by PM
02
Uploading the report pdf (including charts) onto share file web site
03
Follow-up the client download and saving the download notifications
04
Packaging of the report and chart hard copies (1)
05
Issue of the hard copy transmittal note (2)
06
Issue of the customer questioner form (3)
07
Despatch the hard copies (1, 2 & 3)
08
Follow-up the return of the signed transmittal note
09
Follow-up the return of the customer satisfaction form
J
Office - Continual Improvement 01
Publication of the results of the customer satisfaction form
02
Highlight the regions of non-conformities
03
Corrective actions for the non-conformities (if exist)
04
Update of this document ‘Project QC Check List’ (if required)
K
Office - Project Completion 01
Storing the field file(s) and CDs
02
Labelling and storing the raw data rolls and records.
03
Cleaning and storing the project soft copy data on the server Distribution of updated check list and client reply on the customer questioner to different involved departments.
04
Table 14: Horizon Survey’s Standard QC Check List
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CP-SPE-0566A - Survey Quality Plan - Rev 0
APPENDIX H – HORIZON SURVEY CONTACT LISTING
Page: 48
CP-SPE-0566A - Survey Quality Plan - Rev 0
HSC Management Contact Details Name
Position
Horizon Survey
Main Office
Ian Roberts
Managing Director
Peter Blackler
General Manager
Ashraf Deyab
Survey Manager
Colin Gray
Operations Manager
Saket Pendse
Engineering Manager
Hamid Ardalany
Project Manager
Jennifer Brindle
Asst. Project Manager
Abdulhy Abdullathif
Base Geophysicist
Sachin Sharma
Base Geophysicist
Ursula Bell
QC Surveyor
Mohammed Heglan
Senior Base Processor
Contact Details Office Tel.
+971 6 557 3045
Office Fax
+971 6 557 3047
Mobile
+971 50 558 4564
Email
[email protected]
Mobile
+971 50 633 4871
Email
[email protected]
Mobile
+971 50 462 8220
Email
[email protected]
Mobile
+971 50 4824 501
Email
[email protected]
Mobile
+971 50 458 7131
Email
[email protected]
Mobile
+971 50 462 2768
Email
[email protected]
Mobile
+971 50 633 5641
Email
[email protected]
Mobile
+971 50 769 4617
Email
[email protected]
Mobile
+971 50 266 7176
Email
[email protected]
Mobile
+971 50 504 8036
Email
[email protected]
Mobile
+971 50 587 3716
Email
[email protected]
Table 15: HSC Management Contact Details
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CP-SPE-0566A - Survey Quality Plan - Rev 0
FOROOZAN Development Operations & Production Enhancement
Document Number Crossing Installation Procedure For Export Pipeline
Project
Facility
Discipline
Document
Sequence
Revision
FE560
GEXP
PL
PR
1727
D0
Attachment 7: PROJECT TIME SCHEDULE
Sheet NO. Page 22 of 23
Mattress Installation for Foroozan- Continual Of Supports Phase 12
ID 1
Task Name Mattress Installation for ForoozanContinual Of Supports Phase 12
2
Start
3
Duration
Month 1 W-1 59.75 days 9.75 days
W1
W2
W3
Month 2 W4 W5
W6
W7
0 days
Start
Engineering
30 days
30 days
4
Procurement
42 days
42 days
5
End Of Support Installation
0 days
6
sailing to first crossing point
2 days
7
Matresses Ready In Field
0 days
Matresses Ready In Field
8
Installation of 53 mattresses
12.75 days
12.75 days
20
Demob
3 days
21
Finish
0 days
Weather Down Time has been excluded
Month 3 W8 W9
Month 4 W10 W11 W12 W13 W14 Mattress Installation for Foroozan- Continual
Engineering Procurement End Of Support Installation 2 days
sailing to first crossing point
Installation of 53 mattresses 3 days
Demob
Finish
Rev 02
FOROOZAN Development Operations & Production Enhancement
Document Number Crossing Installation Procedure For Export Pipeline
Project
Facility
Discipline
Document
Sequence
Revision
FE560
GEXP
PL
PR
1727
D0
Attachment 8: LIFTING FRAME ARRANGEMENT
Sheet NO. Page 23 of 23
Document No: FLX-IP-0029-05-2010-B Document Title:
Precast Concrete Mattress RIGGING/INSTALLATION PROCEDURE
A
06/12/10
Issued for client review
JD
REV
DATE
DESCRIPTION
BY
CHK
CLIENT APP
Execution Plan TABLE OF CONTENTS 1.0 INTRODUCTION ..........................................................................................................................2 2.0 REFERENCES ................................................................................................................................2 2.1 APPLICABLE CODES AND STANDARDS .............................................................................................................................. 2 2.2 IGO INTERNAL SAFETY TESTING DOCUMENTS............................................................................................................ 2 2.3 SPECIFIC CERTIFICATION DOCUMENTS............................................................................................................................ 2
3.0 INSTALLATION FRAMES ............................................................................................................3 3.1 HEADER FRAME .............................................................................................................................................................................. 3 3.2 RELEASE BEAMS.............................................................................................................................................................................. 3 3.3 TYPES OF INSTALLATION FRAMES ....................................................................................................................................... 4 3.4 MATTRESS AND FRAME ASSEMBLY....................................................................................................................................... 5
4.0 CERTIFICATION REQUIREMENTS .........................................................................................5 5.0 PROJECT SUPPLIED INSTALLATION FRAME .......................................................................5 6.0 FLXMAT HANDLING PROCEDURE .........................................................................................6 6.1 PRE-EXECUTION ACTIVITES .................................................................................................................................................... 6 6.2 RIGGING THE INSTALLATION FRAME ............................................................................................................................... 6 6.3 DE-RIGGING THE INSTALLATION FRAME ....................................................................................................................... 7 6.4 INSTALLING MATTRESSES SUBSEA ....................................................................................................................................... 8 6.5 SAFETY REQUIREMENTS ............................................................................................................................................................ 9 6.6 FLXMAT WEIGHING PROCEDURE ......................................................................................................................................... 9
7.0 INSTALLATION FRAME DELIVERABLES ...............................................................................9
Page: 1
Execution Plan 1.0 INTRODUCTION The purpose of this document is to provide International Grout and client with a suitable procedure to safely handle FLXMAT precast concrete mattresses. Mattresses are lifted, loaded and stacked a number of times prior to installation hence the importance of maintaining a consistent safe lifting practice. 2.0 REFERENCES 2.1 APPLICABLE CODES AND STANDARDS The following standards are followed to ensure a safe and suitable lift is achieved onshore and offshore. Code or Standard DNV Pt 2 Ch 5&6 BS EN12079-1999 DAC 2006, LOLER 1998 and Article (20) decree 32, 1982 (local U.A.E law).
Title
Remark
DNV Rules for Planning and Execution of Marine Operations (1996) Offshore containers. Design, construction, testing, inspection and marking
Required for the design of FLXMAT lifting points.
Accreditation requirements of inspection Bodies for lifting equipment.
2.2 IGO INTERNAL SAFETY TESTING DOCUMENTS The following documents are refer a minimum requirement IGO adhere to for any Offshore piece of equipment intended for Oil Field use. IGO Documentation IGO Annual Programme for Safety Testing
Description
Remark
IGO Offshore Equipment
2.3 SPECIFIC CERTIFICATION DOCUMENTS The following certification will be consolidated and submitted to the Client just prior to delivery or rental of each suitable installation frame. Certification
Description
Polypropylene Mill Test Certificate
Certificate that proves a specific rope diameter Minimum Breaking Load (MBL)
IGO Lift Rope Verification
Calculation to verify lifting point conform to DNV Rules for Planning and Execution of Marine Operations (1996) – Part 2 Ch 5/6
Page: 2
Remark Required to ensure FLXMAT lifting rope conform to DNV Pt2, Ch5
Execution Plan Non Destructive Test (NDT) to prove structures integrity and design. Also includes wire sling test certificate. Overall Visual Inspection to check frame is in correct working order. Also includes wire sling visual inspection report. Overall Visual Inspection to check rigging is in correct working order.
Proof Load (PL) Test Certificate Visual Inspection (VI) Report (Installation Frame) Visual Inspection Report (Rigging)
Witnessed by 3rd Party certification body Conducted by 3rd Party Inspector Conducted by 3rd Party Inspector
3.0 INSTALLATION FRAMES 3.1 HEADER FRAME The header frame is the structural part of the lift comprising of 4 padeyes and two main longitudinal members. The longitudinal members are designed for both end and side lift applications. End lift lug Padeye
connectors
location
Side lift lug connectors
3.2 RELEASE BEAMS Release beams are interchangeable sections that enable the header frame to lift either a side or end lift mattress. They are designed for ROV and Diver release subsea. The release beam is activated by an open/close lever. The lever is always situated on the corners of the header frame. Open/Close lever
Pin and Guide assembly
Lower bolt/lug point
Page: 3
Execution Plan 3.3 TYPES OF INSTALLATION FRAMES International Grout have an array of Installation Frames suitable for almost any mattress sizes requested. Installation frames are best broken into two categories. End Lift – Release beam located either end
Release beam bolted to each end
Side Lift – Release beam located along each side
2No. Release beams bolted to each side
Page: 4
Execution Plan 3.4 MATTRESS AND FRAME ASSEMBLY Below pictures represent the distinct difference between an “End Lift” and “Side Lift” scenario.
Above – End Lift
Above – Side Lift
4.0 CERTIFICATION REQUIREMENTS The below table outlines International Grout company standard for testing and inspecting offshore installation frames. (KEY: Y-Years, M-Months) ITEM
Frequency
Proof Load Test
6Y
Visual Inspection (Frame)
4Y
Visual Inspection (Rigging)
6M
5.0 PROJECT SUPPLIED INSTALLATION FRAME The following table represents the physical details of the designated frame(s) to be mobilized for this project. Equip. ID
End/Side Lift
Total Length
Total Width
LPF007
SIDE
6m
3m
Mattress/Frame GA Drawing: 0029-05-2010B-DWG-051210-01
Page: 5
Execution Plan 6.0 FLXMAT HANDLING PROCEDURE 6.1 PRE-EXECUTION ACTIVITES Prior to any lift the IGO supervisor must check with the IGO Engineer that the piece is equipment is been used for the correct application. Additionally, the supervisor must check with the equipment manager that all certification is in line with Section 4.0 of this procedure. The final assembly must be in accordance to the drawing stated in Section 5.0. All cranes must be specified within their working limit. 6.2 RIGGING THE INSTALLATION FRAME 1. The selected frame is connected to crane hook via oblong link and 4 legged wire sling. Rigging Supervisor instructs crane operator to lower and place frame directly above mattress intended for relocation.
2. Once the frame comes to rest rigging personnel assist by connecting mattress lifting rope to installation frame. One end of a flat eye webbing sling is permanently fixed to the bottom lugs of the beam. The other end is threaded through the opening of the mattress and looped into the pin and guide assembly. The lever is pushed into the closed position so that all points are contained within the pin and guide assembly.
Page: 6
Execution Plan 3. All points should be doubled checked prior to giving the crane operator instructions to commence lifting the mattress. Tag lines should be place on two opposing corners to help control orientation once the mattress leaves the ground. All personnel not required for relocating the mattress should stay well clear of the task at hand. Rigging personnel are prohibited from entering directly beneath a live load under any circumstance.
6.3 DE-RIGGING THE INSTALLATION FRAME 4. When placing the mattress, the supervisor and crane operator communicate until a satisfactory position is achieved. The mattress and frame are lowered together until all webbing slings become loose. Rigging personnel open the lever release and ensure each webbing eye is completely clear from the release beam.
Page: 7
Execution Plan 5. The crane operator slowly lifts the frame. The supervisor and rigging personnel watch closely to make sure the webbing slings do not snag or catch as frame pulls away from the mattress. If snap hooks are used as opposed to the lever system care must always be taken that each link is connected and disconnected when intended.
6.4 INSTALLING MATTRESSES SUBSEA 1. Steps 1-3 of Section 6.2 shall be followed offshore when rigging installation frame on deck. Rigging team should additionally check that safety pin is engaged prior to over boarding each mattress. The safety pin ensures that the release beams cannot become loose at any stage of the installation. 2. Frame shall have two locating beacons (one at each end) to aid placing the frame subsea. Beacons should be place well inside frame exterior in case of impact during over boarding and recovery. 3. The lever on each corner shall have a floating monkey’s fist to assist ROV/diver locating and pulling lever when the time comes. Once the installation team correctly place the mattress at the intended location the ROV/Diver is instructed to open the safety pin and release the mattress. 4. ROV/Diver must check that all webbing slings are loose with no weight acting on them before given approval to commence recovery. As the frame slowly pull away from the mattress the ROV/Diver must constantly monitor that the webbing slings are clear of all obstructions and potential snagging points. 5. The frame is recovered and placed on the next mattress for installation and the process continues.
Page: 8
Execution Plan 6.5 SAFETY REQUIREMENTS All personnel shall attend any required site induction program to become familiar with the site and client method of operation. Personnel shall comply with all client rules and regulations. Company equipment includes a comprehensive first aid kit. Personnel will be briefed during the initial site induction on the hazards of handling FLXMAT. The IGO supervisor will be responsible for site safety and conduct regular toolbox meetings with all personnel. The following PPE (Personal Protective Equipment) is required for handling concrete mattresses. Activity
Minimum PPE Requirement
FLXMAT Handling
Covered steel capped boots, eye protection, coveralls, gloves and sun protection, gloves and hardhat
6.6 FLXMAT WEIGHING PROCEDURE At the time of moving or loading out FLXMAT the crane which has a computerised load cell will record the individual weight of each mattress lifted. For instances where crane does not have accurate load cell and external dedicated load cell will be installed between the lifting hook and sling’s master link to record mattress weights. Each mattress serial number including weight will be tabulated in a report and included within the Manufacturer Record Book (MRB). 7.0 INSTALLATION FRAME DELIVERABLES The following documents are included within the Manufacturer Record Book (MBR) Manufacturer Record Book 4.0 FLXMAT Rigging and Installation Procedure
Approved Final
5.0 Installation Frame Certification
Page: 9
5.1 Proof Load Test Certificate (Frame and Wire Sling)
Info
5.2 Visual Inspection (Frame and Wire Sling)
Info
5.3 Visual Inspection (Rigging – Soft Slings)
Info
