Wireline Operation

Introduction to WIRELINE OPERATIONS

HEIDRUN

Operations in BIT

Rev. 00 - Print date 20.06.09

2

Introduction For a long period, StatoilHydro has worked in order to prevent dropped objects on our installations, and much work has been done to contribute to our philosophy: “Our goal is zero harm. All accidents can be prevented.” The workplace changes all the time for the personnel working with Well Intervention. The personnel must also be involved in several management systems on the different installations. Personnel on these installations must work together with the personnel working with Well Intervention. This requires co-ordination and a mutual understanding of what is important to have in mind under this type of operations. If the planned activities are carried out at a high quality, we believe that we will achieve a good HSE level at the execution of the operations. This will prevent incidents, which in turn will contribute to high effectiveness in our operations. This handbook is meant to be a tool to ensure a correct performance of the operations, in addition to help you check equipment which we have put extra focus on. In this manner, you can help us contribute to a safe operation. A hand book such as this can be an effective tool to identify and catch up conditions which routine work can overlook. However, this hand book is only a supplementary tool. Primary controls including pre-job meetings, safe job analysis, procedures, direct supervision, training and competence shall be rigorously applied during the operation. We believe this hand book can contribute to be a barrier, so that you can, after having taken part in the operations, return back home again in the same condition as before you started the operation. We also want proposals on improvements, in order to revise the book. Best regards

Erling Meyer

Tore Flatekvål



Vice President

D&W Manager



Kjell Tore Nesvik



Well Superintendent

Ivar Kjøsnes Drilling Superintendent

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Personal checkpoints 1. What What could go wrong? Risk assessment/AT/SJA/TBT Are requirements from Just rules 100% fulfilled? 2. How Who are leading the job? How am I going to do this job? Do I know the procedure? 3. Which Which safety measures are implemented? Is the risk minimized? 4. Who Who do I need to inform? Assure that all involved parties know their role and tasks, understand the procedure and safety measures. 5. Communication Listen to your colleagues and communicate openly. Speak plainly, so the message reaches the right persons.

Take 5 seconds, stop and think!

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How How can can we we avoid avoid accidents? accidents?

Rules for everyone, Rules forateveryone, applied all times applied at all times Rules for all Rulesactivities for all work work activities Rules for Rules for specific specific work work activities activities

Our Our expectations expectations Risk assessment Risk assessment Control of work Control of work Lifting operations Lifting Work operations at height Work atisolation height Energy Energyspace isolation Confined entry Confined space entry Excavation Excavation Mobile equipment Mobile equipment

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General HSE information: meetings shall be held prior to well operations and the well • Pre-job operation program shall here be presented to all involved personnel. • Secure and cover WL or workover hatches to prevent dropped objects. contingency procedures shall be available in WL winch during • WL the entire operation. of HMV and TRSCSSV shall be on local control panel during • Control WL work. control panel shall be placed convenient with respect to escape • Local routes. (Normally on ISF deck next to WL winch) escape routes before operation starts. Make sure there are two • Clarify separate escape routes at each working area. Always keep yellow escape routes free from obstructions.

• Notify CCR prior to initial leak testing against XT-valves. radio communication between all involved personnel. • Establish - Only use radios with headset and carrying pouches - Radio channel #7 - Emergency channel #13

• Barriers - Area around XT on wellhead - Work area on skid deck/BIT/Pipe deck/Drill floor - Use barrier chains/bands marked with “Well Operation – Radio channel #7 / Phone: 3275” - Do not break/enter under a barrier without contacting AWS for approval simultaneous operations in different levels. • Avoid - Personnel on upper deck are responsible for barriers on decks below. • Secure tools and equipment to avoid dropped objects. • Report incidents/accidents to well supervisor.

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General safety precautions: Fundamental safety requirements for lifting operations - The load and any load carrier shall be properly secured and prepared before the lifting operation starts. - Relevant areas shall be barriered off before the lifting operation commences. - In case of significant movement on the installation, loads shall be secured against unintentional displacement or overturning. - Loads shall not be lifted over personell and personnel shall not walk under suspended loads. - All personnel who are involved in the lifting operation shall ensure that they have an unrestricted escape route during the whole operation. - If the assumptions which the planning and risk assessments where based upon changes, stop the operation and consider a new plan. The lifting operation shall cease immediately if safety is jeopardized.

In this book: WL operation in BIT All equipment is installed in and directly under BIT. This operation was performed in November 2008. Remember! Wireline operations at Heidrun vary a great deal from time to time. Weather conditions, logistics, equipment issues and simultaneous operations will have an impact on the way equipment is rigged up. The rig up shown in these manuals where the best alternative at the time they were performed, and will not always be the best solution. Electronic update Personnel using these manuals are requested to assist in the improvement and further development of the document. If you have suggestions for new checkpoints, pictures or text, please register these in the electronic update file “Operation manuals/WL/Operations in BIT” found in the Document workspace “Wireline billedbøker - endringsforslag” at the team site “Rig Supervision Heidrun TLP”.

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Overview BIT and ISF

WINCHES PALFINGER UPPER TROLLEY HPU (High Pressure Unit) LOWER TROLLEY

BIT (Well Intervention Tower)

ISF (Integrated Skidding Frame)

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General instructions When performing the operations described in this operation manual there are some safety issues that are very common. Instead of reminding the reader of these safety issues with a written instruction every time it occurs, there are inserted two different “reminder symbols”. Look out for these symbols: Color coding: Inspect lifting gear and check that it is approved for use. Shackles: Check that shackles are secured with split pins.

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RIGGING UP in BIT

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Rigging up wireline hatch

A

Check that permit to work (AT) is activated. Perform risk analysis prior to starting work (SJA, pre-job meetings,etc.). Check that all barriers are in place, and area is secured. Check that all operational personnel has radio-contact. Install new batteries in radio. Prepare for removal of wellhead hatch. A Check general condition of chains and hooks before lifting. l

l Before opening hatch: check area around for loose objects.

Color Coding

Shackles

11

Rigging up wireline hatch

A

Installing wireline hatch on hatchway. A Check general condition of chain and hooks before lifting. l

Color Coding

12

Shackles

Rigging up wireline hatch

Install hydraulic hoses for wireline hatch.

13

Rigging up wireline hatch

A

Installing control cables through wireline hatch. A Secure cables with ropes. l

14

Rigging up wireline hatch

Do not lower riser before: l Handrails are inspected. l You have an authorized work permit. l Wellhead operator is informed. l Riser has two barriers. 15

Connecting risers and BOP to XT

A B

A Check if shackles have the right dimension for this job. l B Verify that lifting cap is tight. l

Always secure riser with additional lifting wire. Color Coding

16

Shackles

Connecting risers and BOP to XT

B

A

Open hatchcover on ISF deck and prepare for lowering riser. A Check if handrails are firm. l B Check if cable clamps are tight. l l Before opening hatch: check area around for loose objects.. Shackles

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Connecting risers and BOP to XT

Riser is lowered down and winch operator has a good overview on lifting operation. Take proper precautions during operations: l Safe positioning of crew. l Beware of crushing hazard: Always keep your back free. l Chech if riser and pumpingsub moves securely through hatch. l Use guide ropes if necessary. l Position personell on each level during lifting operation. 18

Connecting risers and BOP to XT

When pumping sub is lowered through hatch; close hatchcovers to help stabilize it. Ensure radio contact during lifting operations.

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Connecting risers and BOP to XT

Pumping sub is lowered through lower hatch. Always use guide ropes. Before opening hatch: check area around for loose objects.

20

Connecting risers and BOP to XT

Riser is lowered carefully down towards wellhead. Winch operator has a good overview of lifting operation and maintains radio contact with operator.

21

Connecting risers and BOP to XT

A

A Inspect condition of O-ring before landing riser. l

Beware of sharp edges on O-ring. Flashlight recommended.

22

Connecting risers and BOP to XT

A

XT top cap is removed and ready for connection. A Wipe and grease seal-bowl. l

23

Connecting risers and BOP to XT

Riser assembly is guided carefully down on XT. Beware of crushing hazard: Watch your fingers.

24

Connecting risers and BOP to XT

A A Collar is fastened and lifting operation finished. l

25

Connecting risers and BOP to XT

A

A Install hose connection on pumping sub. l B Prepare hose safety wire. l

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B

Connecting risers and BOP to XT

A

Hose is connected to the pumping sub. Make sure it is tight. A Secure top cap on scaffolding. l

27

Connecting risers and BOP to XT

Riser is connected.

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Connecting risers and BOP to XT

A B

A Install half-moon covers around riser. l B Secure riser with chains. l

29

Connecting risers and BOP to XT

A

B

A Make sure shackle has the right dimension for this job. l B Unscrew BOP from trolley. l

Remember general lifting precautions.

Shackles

30

Connecting risers and BOP to XT

A

A Inspect condition of O-ring before landing BOP. l Beware of sharp edges on O-ring. Flashlight recommended. Guide BOP carefully down on to riser. Fasten collar. Unscrew BOP lifting cap.

31

Connecting risers and BOP to XT

Connect control lines for BOP.

32

Connecting risers and BOP to XT

A

Function test BOP. A Control lines for BOP. l

33

Connecting risers and BOP to XT

A Manifold trolley on wellhead. Check that valves are open/closed as planned before pumping. A Check that hose connections are secured with wire. l

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Connecting risers and BOP to XT

General inspection of rig up on wellhead. Walk the lines. l All valves on pumplines must be marked. l An updated copy of line schematics must always be available in WL unit. l All pumplines must be secured with wire. 35

Connecting middle riser

C B A

Riser is lifted up from mousehole. A Remove kick-list and place safety cover on mousehole. l Secure work-deck before removing kick-list. B Remove riser protector. l C Check that threads are clean and inspect O-ring. l l Beware of sharp edges on O-ring. l Flashlight recommended. Color Coding

36

Shackles

Connecting middle riser/guiding

Riser is lifted up with BIT winch and guided down towards BOP. Maintain radio contact with personnel on lower deck.

37

Connecting middle riser to BOP

Riser is lifted with winch and guided down towards BOP. BOP working platform might be damaged during crane handling; perform a general inspection on platform before entering.

38

Connecting middle riser to BOP

A

A Ensure that riser connection is firm. l

l Beware of crushing hazard: Watch your fingers. l Maintain radio contact.

39

Removing lifting cap

Note position of half-moon covers.

40

Placement of Quick Test Sub (QTS)

A

Removing QTS protector. A Verify that lifting cap is tight before lifting. l

Color Coding

Shackles

41

Lifting tool from skid-deck to BIT

Perform general inspection of shackle and tool connections before lifting. Secure skid deck. Move out of lifting area as quick as possible. Consider use of guide ropes in heavy winds. Color Coding

42

Shackles

Guiding tool into the riser

Guiding tool in to riser.

43

Position tool in hang off plate

B A

A Tool is mounted in hang off plate. l B Remove any tape remnants on BHA. l

Beware of crushing hazard: Watch your fingers.

44

Tool in hang off plate

A

A Remember safety chain on hang off plate. l

45

Rigging up lower wireline sheave

A

B C

Rigging up lower sheave assembly. A Check that bolts are tight. l B Check condition of fiber sling and fastening point. l C Note position of cover (consider use of half-moon cover). l Color Coding

46

Shackles

Mounting upper wireline sheave

A

Cable is mounted in sheave. A Check that sheave is secured with split-pins. l

Color Coding

Shackles

47

Stuffingbox

A

Hydraulic hose is mounted to the stuffingbox. A Check that hydraulic hose is secured with wire and strips. l

48

Fastening sheave wheel and lubricator in BIT main hook

Ensure that sheave wheel is fastened between shackles and chains of lubricator to ensure that sheave is hanging straight. General inspection of shackles and lifting gear.

Color Coding

Shackles

49

Lifting sheave wheel and lubricator

Keep the wireline tight during lifting to ensure it doesn´t twist. There must be personell on ISF level to ensure that lubricator assembly moves securely through hatch.

50

Connecting cable head to toolstring

A

A The tool placed in hang-off plate is now connected with cable head. l

51

Pulling up toolstring weight with winch

Beware of crushing hazard: Watch your fingers. There should be personell with wireline winch to watch wireline and sheaves, in addition to be present at BIT work deck.

52

Tighten wireline

Wireline is kept tight by hand until tool is lowered down.

53

Connecting lubricator to QTS

A

Guide lubricator carefully down onto QTS. Beware of crushing hazard: Watch your fingers. A Inspect condition of O-ring before landing riser. l Beware of sharp edges on O-ring. Flashlight recommended. 54

Connecting lubricator to QTS

A

A Installing the bleed-off manifold. Consider use of thread tape. l

55

Zero depth counter on swab

Lower tool string and calibrate (zero depth) counter system. Pull up Toolcatcher (TC). Rig up is finished and ready for leak testing. An updated copy of line schematic must always be available in WL unit during operation. 56

RIGGING DOWN in BIT

57

Rigging down

A

A Perform visual inspection of lifting cap before lifting. l Displace riser to Nitrogen and verify pressure before rigging down. Unscrew collar above QTS.

Color Coding

58

Shackles

Rigging down

BIT tugger is used to elevate riser/lubricator assembly. Take proper precautions during lifting operations: l Safe positioning of crew. l Beware of crushing hazard: Always keep your back free.

59

Rigging down

A

Tool is elevated and mounted in hang off plate. A Remember safety chain on hang off plate. l Beware of crushing hazard: Watch your fingers.

60

Rigging down

A

Transfer weight of toolstring from winch to hang off plate. A Rope socket is disconnected from toolstring. l

61

Rigging down

A

A Lubricator assembly is placed in mousehole. l

Personnel must be present on level beneath to inspect that assembly is lowered securely down.

62

Rigging down

Removing tool. Lifting eye is connected to toolstring.

Shackles

63

Rigging down

A

Removing tool. A Use a suitable strap between lifting eye and tugger hook. l Inspect condition of strap.

Tool is now lifted out and dismanteled. 64

Rigging down

Rigging down QTS. Install lifting cap on QTS.

Shackles

65

Rigging down BOP

Ensure that hydraulic pressure is bled off and remove control lines for BOP. Always remember to install dust caps on hydraulic connections. Dirt in these connections may have serious consequenses.

66

Rigging down lubricator

A

A Riser collar is unscrewed. l

Beware of crushing hazard: Watch your fingers.

67

Rigging down lubricator

Lifting riser. Inspect riser during lifting to ensure secure movement.

68

Rigging down lubricator

A

A Install protector on riser and lower it down into the mousehole. l

Riser placement. Make sure there is a person present on level below.

69

Rigging down BOP

A

Lifting cap is now installed on BOP. A Check that lifting cap is tight. l Fasten working platforms and prepare BOP for lifting operation. Inspect BOP for loose items, tools etc. Shackles

70

Rigging down BOP

A

A Lower collar is unscrewed. l

71

Rigging down BOP

A

Preparations for lifting BOP. A Check that cable clamps are tight. l

Handrails are installed around hatchway and hatch covers are opened. Check area around hatches for any loose objects before opening hatch covers. 72

Rigging down BOP

Inspect BOP during lifting to ensure that it moves securely. l Move out of lifting area as quick as possible. l Consider use of guide ropes.

73

Rigging down BOP

Elevate BOP and close hatch covers.

74

Rigging down BOP

A

Drive trolley underneath BOP and lower it carefully down. A Use straps to secure BOP during transport on trolley. l

75

Rigging down riser

A

B

Install lifting cap on riser. Inspect condition on straps. A Check that lifting cap is tight. l B Always have two barriers when performing lifting operations above l open well. Remember to contact wellhead operator before operation. Shackles

76

Rigging down Chiksan pipeline

Lines must be flushed and verified to be without pressure before “breaking” the connections. Halliburton personnel rigging down Chiksan pipeline. Wellhead operator must be present. 77

Rigging down riser

A

A Opening collar. l

78

Rigging down riser

Secure area. Check that riser moves securely during lifting. Always use guide ropes. There must be personnel present on all levels to inspect the lifting operation. Wellhead operator must be present. 79

Rigging down riser

Open wireline hatch covers and check that riser moves securely. Always use guide ropes.

80

Rigging down riser

Close hatch cover after lifting. There shall be no work on XT until hatch covers are closed.

81

Rigging down riser

Check that riser moves securely through bushing.

82

Rigging down riser

Check that riser and pumping sub moves securely through hatch.

83

Rigging down riser

Secure riser with slips and dog collar.

84

Rigging down riser

When riser is secured, close hatches. Safe positioning of crew.

85

Rigging down riser

Connect top cap on XT.

86

Rigging down riser

Preperations for pumping of MEG and leak testing.

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ABBREVIATIONS

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AWS BIT BHA BHP BHT BOP CCR CSG CT DCDA FH FWHP HC HMV HP ID ISF LD LPM LTV MD MEG MMV MSL OD OOH PBR PBTD PLT POOH RIH PWV RKB RU SG SIWHP SJA SV SWV TBG TD TLP TRSCSSV WHP WH WL XT QTS

Aker Well Service Brønnintervensjonstårn (Well intervention tower) Bottom Hole Assembly Bottom Hole Pressure Bottom Hole Temperature Blow-Out Preventer Central Control Room Casing Coiled Tubing Drilling Control and Data Acquisition Fluted Hanger Flowing Wellhead Pressure Hydrocarbons Hydraulic Master Valve High pressure Internal Diameter Integrated skidding frame Lay Down Liters per minute Low-torque valve Measured depth Mono Ethylene Glycol Manual Master Valve Mean Sea Level Outer Diameter Out of hole Polish Bore Receptacle Plug Back Total Depth Production Logging Tool Pull out of hole Run in hole Production Wing Valve Rotary Kelly Bushing Rig Up Specific gravity Shut-in wellhead pressure Safe Job Analysis Swab valve Service Wing Valve Tubing Total Depth Tension Leg Platform Tubing retrievable surface controlled subsurface safety valve Wellhead pressure Wellhead Wireline Christmas tree/Xmas tree Quick Test Sub

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Firstline AS Gismerøyveien 227 PO box 539 4504 Mandal

HEIDRUN

StatoilHydro Kontor Strandvegen 4 7500 Stjørdal

Rev. 00 Et produkt fra Firstline AS www.firstline.no