0397-MI20-9006-0050-A

This document including, drawings, procedures, specifications, and its contents is the exclusive property of MODEC International, Inc. and is furnished on a confidential basis, and with the express agreement that it will neither be used, sold, transferred, copied, traced, photographed, nor reproduced in any manner whatsoever in whole or in part, nor any item herein be sold, manufactured or assembled without the written agreement of MODEC International, Inc. The recipient of this document agrees not to disclose to any other party information contained herein, or not to use such information, except for the specific purpose intended at the time of release of this document.

A

IDC

03 APR 2013

Rev

Status

Date

Originator

Checker

Approver

Project

Document Title:

FPSO TOPSIDE STRUCTURAL DESIGN BASIS MODEC Project No.

0397

Client Document No.

MODEC Document No.

0397-MI20-9006-0050-01

Petrobras FPSO 9 - Carioca

Page

1 of 20

Petrobras FPSO 9 - Carioca

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

RECORD OF AMENDMENT REVISION

SECTION

PARAGRAPH

DESCRIPTION OF CHANGE

A

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FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

TABLE OF CONTENTS 1.0

EXECUTIVE SUMMARY ................................................................................................. 5

2.0

BACKGROUND .............................................................................................................. 5 2.1

3.0

BASIS ............................................................................................................................. 6 3.1

4.0

DEFINITIONS ...................................................................................................... 6 REFERENCES .................................................................................................... 7 3.1.1

Company .............................................................................................. 7

3.1.2

Client .................................................................................................... 7

3.1.3

Industry Codes, Standards, Rules, and Regulations ............................. 7

3.2

DEFINITIONS ...................................................................................................... 7

3.3

DESIGN PHILOSOPHY ....................................................................................... 7

3.4

DESIGN LIFE ...................................................................................................... 8

3.5

DESIGN CRITERIA ............................................................................................. 8

3.6

MEMBER SIZE .................................................................................................... 8

3.7

JOINT .................................................................................................................. 8

3.8

SEGMENT ........................................................................................................... 8

3.9

MODULE/SKID REACTION ................................................................................. 9

STRUCTURAL ANALYSIS ............................................................................................. 9 4.1

REQUIRED ANALYSES ...................................................................................... 9

4.2

SUPPORT BOUNDARY CONDITIONS ............................................................... 9

4.3

NATURAL FREQUENCY OF STRUCTURE ...................................................... 10

4.4

ALLOWABLE STRESS INCREASE FACTORS ................................................. 10

5.0

MATERIALS ................................................................................................................. 10

6.0

LOAD ............................................................................................................................ 10

7.0

6.1

BLANKET LIVE LOAD ....................................................................................... 10

6.2

WIND ................................................................................................................. 11

6.3

INERTIAL .......................................................................................................... 11

6.4

VESSEL FLEXIBILITY ....................................................................................... 11

6.5

MANIFOLD AND RISER SUPPORT STRUCTURE LOADS .............................. 11

6.6

VIBRATION ANALYSIS ..................................................................................... 11

LOAD COMBINATIONS ............................................................................................... 11 7.1

NORMAL OPERATION, EXTREME OPERATION AND FPSO TRANSIT .......... 12

7.2

HULL DAMAGE CONDITION ............................................................................ 14

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FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

TABLE 8-2 – LOAD COMBINATION FOR HULL DAMAGE CONDITION ............................... 14 7.3

BARGE/VESSEL TRANSPORTATION .............................................................. 14

7.4

WEIGHT LOADS IN LOAD COMBINATIONS .................................................... 14

8.0

APPURTENANCE DESIGN .......................................................................................... 15

9.0

MODULES/SKIDS INFORMATION ............................................................................... 15

TABLE 10 1 – FABRICATION LOCATION OF MODULES/SKIDS .......................................... 15 10.0

DEMO TEMPLATE OF ANALYSIS/CALCULATION REPORTS .................................. 16

TABLE 11-1 – TEMPLATE OF ANALYSIS/CALCULATION REPORTS.................................. 17 APPENDIX 1.0 FPSO MV26 SKID MAP................................................................................... 19 APPENDIX A – ......................................................................................................................... 20

Figures No table of figures entries found.

Tables No table of figures entries found.

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1.0

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

EXECUTIVE SUMMARY The purpose of this document is to provide specific design criteria and describe methodology and procedures to be followed during detailed structural design phases of the FPSO CIDADE DE ITAGUAÍ MV26 topsides modules/skids. If design subcontractors find any criteria being missed out, they shall immediately inform MODEC for a resolution. This document defines the minimum requirements for structural design of the steel framework of the topsides production modules and skids for the FPSO. Each module or skid shall be designed with appropriate supports on pancakes. The skid configuration shall be based on the specific requirement of each skid. The scope also includes design and detailing of all module and skid appurtenances including stairs, ladders, access platforms, equipment supports, monorails, firewalls, service supports, lifting eyes and major installation aids. This document is a supplement to the MODEC company specifications tabulated in the section of Reference. For any issue that is not addressed in this current document, the MODEC company specifications are applicable. Especially, the “Design of Offshore Structure Specification” (Doc. 0003-MI20-00S1-0230) gives detailed information on general requirements for structural design of module/skid and shall be referred as a primary design document.

2.0

BACKGROUND Petrobras and partners (henceforth the “Client”) are developing the "Carioca Wells" within the concession areas related to the Santos Basin, off the coast of Brazil. The Client invited the Schahin Group and MODEC International, Inc. (henceforth the “Company”) to tender FPSO specifications for a VLCC conversion scenario with a minimum storage capacity of 1,600,000 bbl of crude oil. The Client specified that the FPSO shall be spread-moored in a maximum water depth of 2,126 meters. The FPSO is intended to receive production from subsea oil wells and shall have production plant facilities to process the fluids from the subsea production, stabilize them, and separate produced water and natural gas. Processed liquids shall be metered, stored in the vessel cargo storage tanks, and offloaded to shuttle tankers. High CO2 concentrate produced gas shall be compressed, dehydrated, and used as a fuel gas. Surplus gas shall be injected into the reservoir. Low CO2 gas shall be imported for fuel gas and gas lift use as well as combined with the high CO2 produced gas for reservoir injection. Produced water shall be disposed of overboard after appropriate treatment. The Process Plant shall have the following capacity: •

Production and treatment of 19,200 Sm3/day of liquids (at 15.6 ºC and 101.3 kPa (a)) and up to 16,000 Sm3/d of crude oil (at 15.6 ºC and 101.3 kPa (a)) and 16,000 m³/d of produced water.

•

Treatment and compression of 5,000,000 Sm3/d of associated gas.

•

Treated seawater injection capacity of 19,200 m3/d at 25,000 kPa (a).

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2.1

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

DEFINITIONS The following definitions apply within this document: Table 2-1 – Definitions

Number/Identification

Title

CS

Classification Society

Client

PetroBras

Company

MODEC International, Inc. and/or its assigns

Facility

Supplier or Subcontractor shop and/or any property owned by a Supplier or Subcontractor where any portion of the Work will be performed

Project

FPSO CIDADE DE ITAGUAÍ MV26

Services

Any Work performed by a Supplier that must be performed to comply with the requisition requirements, or the contract, to procure, design, manufacture, and deliver the Work

Standards

Industry Codes, Standards, Guides, and Recommended Practices referenced herein, meaning the latest issue or edition in force at the end of the Supplier bid validity date or the contract date

Supplier

At quote stage: any entity invited to supply a quotation for the equipment and/or any Subcontractors thereto. At Purchase stage: any entity contracted for the supply of the equipment and/or any Subcontractors thereto. In all cases, the Supplier is responsible for performance of all Work and will be the single point of contact for all Work-related issues. The Company will not receive information from, nor respond directly to Sub-suppliers.

Work

Any material, item, or service listed in the requisition or contract as being in the Supplier’s Scope of Supply

3.0

BASIS This FPSO project adopts a new pancake concept - Big Girder Pancake supported by four stools, for most topsides modules. These pancake structures shall be designed by the hull team, and fabricated and assembled in the Conversion Shipyard together with the ship hull conversion. Therefore for these modules the skids that are supported by these pancakes are, but the pancakes are not, in the work scope of the Topsides. The purpose of this supplement is to address the issues that are specific to the FPSO project Topsides, which include the information, that are related with FPSO character and site condition, such as environmental parameter, the movement and deformation of the FPSO, as well as some special requirements arise from construction and client. One main focus of this document is the problem related with the concept of pre-fabrication of module and skid structures, including connection details, transportation, tolerance control, interface control and assembly methodology.

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3.1

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

REFERENCES This section lists the Company, Client, and Industry regulatory references cited within this document. The most stringent requirement applies, unless otherwise specified in writing by the Company. Notify the Company in case of conflict.

3.1.1

Company

Number / Identification

3.1.2

Title

Client

Number / Identification

3.1.3

Title

Industry Codes, Standards, Rules, and Regulations

Number / Identification

3.2

Title

DEFINITIONS The following definitions apply within this document:

Term

Definition

CS

Classification Society

Client

Petróleo Brasileiro S.A. – “PETROBRAS”

Company

Schahin Group & MODEC International, Inc. and/or its assigns

Facility

Supplier or Subcontractor shop and/or any property owned by a Supplier or Subcontractor where any portion of the Work will be performed

Services

Any Work performed by a Supplier that must be performed to comply with the requisition requirements, or the contract, to procure, design, manufacture, and deliver the Work

Standards

Industry Codes, Standards, Guides, and Recommended Practices referenced herein, meaning the latest issue or edition in force at the end of the Supplier bid validity date or the contract date

Supplier

At quote stage: any entity invited to supply a quotation for the equipment and/or any Subcontractors thereto At Purchase stage: any entity contracted for the supply of the equipment and/or any Subcontractors thereto. In all cases, the Supplier is responsible for performance of all Work and will be the single point of contact for all Work-related issues. The Company will not receive information from, nor respond directly to Subsuppliers.

Work

Any material, item, or service listed in the requisition or contract as being in the Supplier’s Scope of Supply

3.3

DESIGN PHILOSOPHY Besides the philosophies mentioned in “0003 Specifications”, the following philosophies shall be followed:

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3.4

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

•

The concept of “standardization first” instead of “optimization first” shall be applied to the overall procedure of design.

•

The design of topside module and skid structure shall consider all aspects of the cost, such as the pre-fabrication, loadout, transportation, lifting, assembly and obtain an optimized solution to minimize the total cost without any compromise on quality and schedule.

•

The structural design shall be suitable to obtain a letter of Certification from marine warrantee for the transportation of module / skid from Pre-fabrication site to assembly site.

•

Assessment of structural module / skid design within the allowable limits (strength and deformation etc.) defined in the appropriate code and standard during the loadout, lifting and transportation.

•

Appropriate measures have to be taken to ensure that the deformation of the module / skid during lifting and transportation is within the limit as per the tolerance requirement of assembly work.

DESIGN LIFE The design life of the topside structures is 25 years.

3.5

DESIGN CRITERIA The requirements on the design criteria in “Company Specifications” shall be followed for the design of topside structures.

3.6

MEMBER SIZE The selection of member size shall consider the convenience of splicing of member during assembly.

3.7

JOINT Joints shall be designed away from the interface of segment. A distance of minimum 75 mm is required for the distance between welds.

3.8

SEGMENT The division of structural segments shall be determined in such a way that the following issues will be considered: •

Avoid intersections with complicated joints

•

Minimize the assembly workload and difficulty

•

Minimize the possible deformation during load-out, lifting and transportation

•

Limit the impact on the structural integrity and strength

•

Consider the handling requirements of segment during lifting and transportation

•

For tubular structures, the interface of segments shall utilize perpendicular connection as much as possible. Miter joints and saddle joints shall be avoided at segments interface.

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3.9

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

MODULE/SKID REACTION •

The topside designer shall provide reactions at the support locations of modules and skids on the pancakes/Stools for the FPSO transit and on-site (in-place) conditions, so as to facilitate the detailed design and analysis of the pancakes/supporting stools with consideration of the static and dynamic effects.

•

The hull designer will provide preliminary and updated hull deformation for the analysis of topside structures.

4.0

STRUCTURAL ANALYSIS

4.1

REQUIRED ANALYSES Structural models shall include all loading associated with a defined load condition and sufficient model detail to accurately represent the weight, stability, and stiffness of the structure. Assessment of the following load conditions shall be conducted in the model: In-place Analyses Normal Operation Condition; Extreme Operation Condition; Damaged Condition. FPSO Transit Analysis Condition under FPSO transit from the conversion yard in China to the integration yard in Brazil if applicable; Condition under FPSO transit from the integration yard to the site. Barge/Vessel Transportation Analysis Condition under barge/vessel transportation of module/skid from fabrication yard to integration yard. Lifting Analysis Condition during lifting (at integration yard and/or fabrication yard). Loadout Analysis Condition during Loadout (from module/skid fabrication yard to transportation barge/vessel). Weighing Analysis Condition during weighing (at integration yard and/or fabrication yard). Hydro / Start-Up Test Analyses Conditions under hydro test or start-up test (at fabrication yard or integration yard).

4.2

SUPPORT BOUNDARY CONDITIONS Module/Skid shall be designed to accommodate the effects of foundation flexibility, hull vertical deflection (refer to 0381-MI20-3004-0170). However, due to design requirement, the

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FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

support types may be changed case by case. For modules with the pancake structure supported by elastomers at fwd end (Modules 1S/2S/3S/4S/5S/7S/8S/3P/5P/6P/6PA), there is no need to consider the sagging/hogging effect for skids sitting on top. For modules with the pancake structure fully fixed to ship deck, the skids on top shall be designed with consideration of both horizontal and vertical effects from sagging/hogging. The vertical movement of the supports shall be limited so as to prevent overstressing of the modules, skids, appurtenances and piping, etc. If the uplift is too severe, the analysis shall include a limitation on the deflection and the structural system shall be designed to limit the vertical deflection.

4.3

NATURAL FREQUENCY OF STRUCTURE The natural frequency of each module and skid structure shall be calculated in the analysis and summarized in a list for each independent module/skid for MODEC to review. The natural frequency of the structure shall be compared with test and operation frequency of mechanical components that may produce vibration resonance with the structure. To be acceptable, the natural or combined frequencies shall satisfy the requirements of Design of Offshore Structures Specification (0003-MI20-00S1-0230).

4.4

ALLOWABLE STRESS INCREASE FACTORS The API-RP-2A allowable stresses will be factored as follows: Table 4-1 – Allowable Stress Modifiers Design Condition

Modifier

In-place: (Normal Operating Condition)

1.00

In-place: (Extreme Operating Condition)

1.33

In-place (Damage Condition)

1.33

Hydro test / Start-up test

1.00

Loadout

1.00

Lifting

1.00

Barge Transportation

1.33

FPSO Transit

1.33

5.0

MATERIALS Refer to “Materials of Offshore Marine Structures Specification” document (0003-MI2000S1-0240).

6.0

LOAD

6.1

BLANKET LIVE LOAD The blanket live load in open areas of topsides shall follow the requirements of Design of Offshore Structures Specification (0003-MI20-00S1-0230). However, the open area live loads shall be used for local design only; these loads shall be neglected from global analysis.

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6.2

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

WIND Wind load values in in-place conditions and FPSO transit shall follow the requirements to the Site Conditions and Available Utilities (0381-MI20-00DS-0010) in which wind speed at 10 meters above mean sea level are listed in accordance with the Metocean Data. The wind speed with different heights and averaging times could be derived by formula in API RP 2A, 2.3.2.b if necessary.

6.3

INERTIAL For vessel motion load factors refer to Site Conditions and Available Utilities (0381-MI2000DS-0010). For barge transportation, if the specific motion data of ship are not available, then the motion criteria specified in Design of Offshore Structures Specification (0003-MI20-00S1-0230) shall be followed.

6.4

VESSEL FLEXIBILITY In-place and transit analyses shall include bending deformation of the ship (Hogging / Sagging) due to still water and wave bending moment (refer to 0381-MI20-3004-0170, FPSO Hull deflection report, provided that the condition in Section 5.2 is met.

6.5

MANIFOLD AND RISER SUPPORT STRUCTURE LOADS There are risers to be supported on the riser porch modules. The risers are to be installed using riser pull-in winch. The winch will move along the specially designed rail system on the riser porch modules. Riser pull-in force (Refer to “Riser Pull-in Winch & Trolley Specification 0381-MI20-80PO9120) and sheave trolley weight shall be combined with the gravity loads. All possible riser pull-in scenarios shall be considered properly for the structure design. In addition, the structure shall be analyzed under the specified environmental conditions (Refer to “General Technical Description”, I-ET-001).

6.6

VIBRATION ANALYSIS If the structure is subject to cyclic loads from reciprocating machinery (Compressors, Generators, and Pumps, etc.), then a vibration analysis shall be performed. A detailed procedure for assessment of vibration shall be submitted to MODEC for approval. The structural design system shall ensure that the supports under equipment do not resonate with machinery having unbalanced forces. The natural frequency of the supporting structure shall be compared with the test/operational frequency of mechanical components that may produce vibration resonance with the structure. If results indicate a vibration resonance, more detailed modeling or direct response-based analysis shall be performed.

7.0

LOAD COMBINATIONS In-place analyses, Transportation analysis and FPSO Transit analysis shall be performed with loading cases given by load combinations of weight loads, ship motion inertial loads, wind loads and ship sagging/hogging deformations if applicable. This section specifies minimum requirements of load combinations in these analyses.

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FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

A coordinate system is assumed in which x-axis points from ship stern to the bow, y-axis from the starboard to the port, and z-axis upward vertically. Therefore Ax is defined as acceleration load in the longitudinal direction, Ay in transverse, and Az in vertical. It should be noted that some computer code may use a different coordinate system, and the definitions should be accordingly varied. Note that wind loads in only 00/900/1800/2700 are considered in Head Seas and Beam Seas conditions while wind loads in only 450/1350/2250/3150 are considered in Quartering Seas. The underlying philosophy is that combinations of inertial loads with parallel or perpendicular wind loads are more critical than combinations with wind loads that are of an angle other than parallel or perpendicular.

7.1

NORMAL OPERATION, EXTREME OPERATION AND FPSO TRANSIT Load combinations in analyses of Normal Operation Condition, Extreme Operation Condition and FPSO Transit are listed in Table 7-1, showing a total of 64 load combinations where respective Basic Load values shall be used for each case respectively. If hull Sagging/Hogging deflections are not applicable, however, the two relevant rows shall be removed from the table, leaving 32 load combinations.

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FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

Table 7-1 – Load Combination for Normal/Extreme Operations and FPSO Transit Basic Load

Head Seas 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

Weight Loads

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Acc. Ax

1

1

1

1

-1

-1

-1

-1

1

1

1

1

-1

-1

-1

-1

Acc. Az

1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

Wind in +X

1

Wind in +Y

1 1

Wind in -X

1

Wind in -Y 1

1

1

1 1

1 1

Hull Sagging

1 1

1

1 1

1 1

1 1

1

1

1

1

Hull Hogging

1

1

1

1

1

1

1

1

Beam Seas 17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

Weight Loads

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Acc. Ay

1

1

1

1

-1

-1

-1

-1

1

1

1

1

-1

-1

-1

-1

Acc. Az

1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

Wind in +X

1

Wind in +Y

1 1

Wind in -X

1 1

Wind in -Y 1

1

1

1 1

1 1

Hull Sagging

1

1

1 1

1 1

1 1

1

1

32

1

1

Hull Hogging

1

1

1

1

1

1

1

1

Quartering Seas 33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

Weight Loads

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Acc. Ax * 0.707

1

1

1

1

-1

-1

-1

-1

1

1

1

1

-1

-1

-1

-1

Acc. Ay * 0.707

1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

Acc. Az

1

-1

1

-1

1

-1

1

-1

1

-1

1

-1

1

-1

1

-1

1

1

1

1

1

1

1

1

1

1

1

1

58

59

60

61

62

63

o

Wind in 45

1

Wind in 135

o

Wind in 225

o

1 1

1

1

1 1

Wind in 315o Hull Sagging

1

1

1

1

1

48

1

1

1

1

1 1

1 1

Quartering Seas 49

50

51

52

53

54

Weight Loads

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

Acc. Ax * 0.707

1

1

1

1

-1

-1

-1

-1

1

1

1

1

-1

-1

-1

-1

Acc. Ay * 0.707

1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

1

1

-1

-1

0397-MI20-9006-0050-01

55

56

57

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7.2

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

HULL DAMAGE CONDITION Hull Damage Condition analysis is different from analyses of Normal Operation and Extreme Operation Conditions in the way how the acceleration loads are derived. Typically two inclination angles of the hull are specified in the Hull Damage Condition, i.e. a Heel angle and a Trim angle. Acceleration loads derived out of the Trim angle are denoted as Ax and Az1, and out of the Heel angle as Ay and Az2. As these acceleration loads are actually components of the gravity, Az1 and Az2 shall be considered only to offset the weight loads in the vertical direction, therefore positive/negative combinations shall never be applied to Az1 and Az2. In addition, Sagging/Hogging deflections are not required in the Hull Damage Condition analysis. There are a total of 16 load combinations for Hull Damage Condition as shown in Table 7-2. Note that Az1 + Az2 is applied in Quartering Seas condition.

TABLE 7-2 – LOAD COMBINATION FOR HULL DAMAGE CONDITION Basic Load Weight Loads Acc. Ax Acc. Ay Acc. Az1 Acc. Az2 Wind in +X Wind in +Y Wind in -X Wind in -Y Wind in 45o Wind in 135o Wind in 225o Wind in 315o

7.3

Head Seas 1 2 3 1 1 1 1 1 -1 1

1

1

4 1 -1

Beam Seas 5 6 7 1 1 1

8 1

1

1

-1

-1

1 1

1

1

1

1

1 1

9 1 1 1 1 1

10 1 1 1 1 1

Quartering Seas 11 12 13 14 1 1 1 1 1 1 -1 -1 -1 -1 1 1 1 1 1 1 1 1 1 1

15 1 -1 -1 1 1

16 1 -1 -1 1 1

1 1

1 1

1 1

1 1

1 1

1 1

1

BARGE/VESSEL TRANSPORTATION In Transportation analysis, appropriate inertia acceleration loads and eight-direction wind loads shall be applied similarly to analyses of Normal Operation Condition, Extreme Operation Condition and FPSO Transit, but Sagging/Hogging deflections are not applicable. Therefore Table 7-1 shall be modified by removing the two rows for the Sagging/Hogging deflections and applied to the Transportation analysis. Hence there shall be a total of 32 load combinations in the Transportation analysis.

7.4

WEIGHT LOADS IN LOAD COMBINATIONS It should be noted that for In-place analyses, i.e. Normal Operation Condition, Extreme Operation Condition and Hull Damage Condition, Operation Weights shall be applied to the weight loads. In both FPSO Transit and Barge/vessel Transportation analyses, however, Dry Weights shall be applied.

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8.0

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

APPURTENANCE DESIGN The design of appurtenance shall follow the requirement of “Company Specifications”.

9.0

MODULES/SKIDS INFORMATION The fabrication locations of modules/skids are listed below.

TABLE 10 1 – FABRICATION LOCATION OF MODULES/SKIDS Skid 1PWA 1PWB 2PW 3PW 4PW 5PW 6PW 0C 1C 2C 3C 4C 5C 6C 7C 9C 1P/P 2P-1 2P-2 3P-1 3P-3A (Lower) 3P-3B (Upper) 3P-4 4P-1A/B/C 4P-2 4P-3 5P-1 5P-2 6P-1 6P-2 6P-3 6P-4

Description Riser Upper Module 1A Riser Upper Module 1B Riser Upper Module 2 Riser Upper Module 3 Riser Upper Module 4 Riser Upper Module 5 Riser Upper Module 6 VRU with Pancake VRU with Pancake Pipe Rack 2 Pipe Rack 3 Pipe Rack 4 Pipe Rack 5 Pipe Rack 6 Pipe Rack 7 E-House Flare KOD & Pumps with pancake LP Separation Skid 1 LP Separation Skid 2 HP Separation Skid 1 HP Separation Skid 3 HP Separation Skid 3 Interconnection Pipe Rack Molecular Sieve Absorber A/B/C Gas Treatment Skid Fiscal Metering Water Injection Skid Seawater Injection Pumps SWT SRU Deaerator Electro-chlorinator

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Fabrication Site Asia Fabrication Asia Fabrication Asia Fabrication Asia Fabrication Asia Fabrication Asia Fabrication Asia Fabrication Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Asia Fabrication Asia Fabrication Asia Fabrication Asia Fabrication Asia Fabrication Asia Fabrication Asia Fabrication Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Asia Fabrication Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Direct Mounted on deck at China Brazil Fabrication by MTOPS Asia Fabrication Asia Fabrication Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Page 15 / 20

Petrobras FPSO 9 - Carioca

Skid 7P-1 7P-2 1S-1 2S-1A/B/C/D/E/F 2S-3 2S-4 3S-1 3S-2 3S-3 3S-4 4S-1 4S-2 4S-3 4S-4 5S-1 5S-2 5S-3 7S-1 7S-2 7S-3 8S-1 8S-2 8S-3 All Pancakes Flare Stack

10.0

Description Off Loading Metering Work Shop/Laboratory Chemical Injection H2S Removal Vessels A/B/C/D/E/F H2S Removal Piping H2S Removal Skid Main Compressor A Package A Main Compressor A Package B Main Compressor A Package C Main Compressor A Skid Main Compressor B Package A Main Compressor B Package B Main Compressor B Package C Main Compressor B Skid Gas Reinjection Compressor A Gas Reinjection Compressor B Gas Reinjection Skid Power Generation A Power Generation B Power Generation A/B Upper Skid Power Generation C Power Generation D Power Generation C/D Upper Skid For All Modules Lower and Upper

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

Fabrication Site Asia Fabrication Asia Fabrication Brazil Fabrication by Vendor Direct Mounted on deck at China Brazil Fabrication by MTOPS Brazil Fabrication by MTOPS Direct Mounted on deck at China Direct Mounted on deck at China Direct Mounted on deck at China Brazil Fabrication by MTOPS Direct Mounted on deck at China Direct Mounted on deck at China Direct Mounted on deck at China Brazil Fabrication by MTOPS Direct Mounted on deck at China Direct Mounted on deck at China Brazil Fabrication by MTOPS Direct Mounted on deck at China Direct Mounted on deck at China Asia Fabrication Direct Mounted on deck at China Direct Mounted on deck at China Asia Fabrication Asia Fabrication Asia Fabrication

DEMO TEMPLATE OF ANALYSIS/CALCULATION REPORTS This section presents a demo template of structural design analysis/calculation reports. Although it is not a compulsory requirement to exactly follow the template, the underlying practice rules shall be maintained when documenting the reports. The reports shall be organized in a logical sequence, furnished with sufficient background information of the relevant design and analysis, and details of modeling, loading and boundary conditions. Tables and illustrations shall be included and properly arranged wherever necessary. Analysis results shall be appropriately summarized and discussed. Design drawings, input files and raw output of the computer code shall be enclosed in appendices.

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FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

TABLE 10-1 – TEMPLATE OF ANALYSIS/CALCULATION REPORTS Section

Content

HEADER

Including MODEC Logo, Project Title, Document Title, Document No., and Revision No. (Applicable to each page except the Cover)

FOOTER

Including Document No. (with Revision No.), and Page No./Total Pages. (Applicable to each page except the Cover)

FRONT MATTER

TOC. List of Figures. List of Tables.

1.0 EXECUTIVE SUMMARY

Overview of the FPSO and the relevant module/skid. Provide illustration(s) of FPSO with the module/skid marked. Highlight major results and conclusions.

2.0 REFERENCE

Provide a list of References used in the design and analysis, including Design Codes, MODEC documents and etc., specifying Document No., Title, Version No., and Year.

3.0 DESIGN AND ANALYSES SCOPE

Describe details of the module/skid. Specify details of all required analyses, referring to 3.0 of 0381-MI20-9006-0050-0 (FPSO Topsides Structural Design Basis). Provide illustrations to assist presentation. Describe allowable stress increase factors for the analyses in tabular forms.

4.0 DESIGN LOADS 4.1 DEAD WEIGHT 4.2 NON-MODELLED WEIGHT 4.3 EQUIPMENT WEIGHT 4.4 PIPING WEIGHT 4.5 E&I WEIGHT 4.6 LIVE LOAD 4.6 WIND LOAD 4.7 SHIP MOTION LOAD 4.8 HULL SAGGING/HOGGING DEFORMATION

Detailed descriptions of various design loads. Weight loads should be listed in tabular forms for structural weights, equipment weights, piping weights, electrical & instrumentation (E&I) weights respectively, specifying Dry and Operating weights separately, specifying Contingency factors for each discipline and the resulted Gross Dry weights and Gross Operating weights. Describe the amount of Live load and the applicability in analyses. Use tabular forms to list required Wind load conditions under various analyses. If necessary, transfer wind speed at different height and period. Calculate wind pressure loads from respective wind speeds. Ship motion inertia acceleration loads (using unit g) should be listed in tabular forms under various analyses. Describe the required Hull Sagging/Hogging deformation loads.

5.0 COMPUTER MODEL 5.1 MODEL OVERVIEW 5.2 MATERIAL PROPERTIES 5.3 SUPPORT (OR BOUNDARY) CONDITIONS 5.4 DEFINITION OF LOADING CASES

Describe the computer model. Define Units and Coordinate System. Illustrations may be necessary. Provide additional modeling considerations, e.g. Lifting arrangements. Describe support (or boundary) conditions for respective Analysis Conditions. Provide illustrations showing boundary conditions for various analyses: In-place, FPSO Transit, Barge/vessel Transportation, Lifting, Load-out, Weighting, Hydro/startup Test, etc. perhaps in a number of sub-sections. Define various Loading Cases for the computer model, based on the specified Design Loads (section 4.0 in this table). Note the difference between Design Loads and Loading Cases. While the Design Loads are the required conditions of the project, definitions of Loading Cases depend on both the computer code and model. Weight loads should be carefully handled. Dead weights of modeled structures shall be applied by an inherent way of the computer code, but weights of non-modeled structure shall be manually included. Weights of equipment, pipes and E&I shall be applied as concentrated loads or distributed loads depending on case by case, with providing detailed description in the report.

6.0 LOAD COMBINATIONS

Describe in tabular forms detailed load combinations for each Analysis Condition. Load Combinations table in Section 8.0 of this document can be referred.

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Section

FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A Content

7.0 ANALYSES RESULTS AND DISCUSSION 7.1 ANALYSIS CONDITION 1 7.2 ANALYSIS CONDITION 2 7.3 ETC.

Present major results in a separate sub-section for each Analysis Condition, including Reaction Forces, Utilization Check, and Member Deflection. Summary of Reaction Forces at all supports shall be provided for the most critical load combination case for each degree of freedom. Summary of Utilization Check shall be provided on the basis of Section Groups in form of envelope of all load combinations. Summary of Member Deflection shall be provided in form of envelope of all load combinations considering the ratios over the member lengths.

8.0 CONCLUED REMARKS

Provide an overall conclusion, and address critical issues of concern if any.

APPENDICES 1, 2, ETC.

Put input files of computer model and raw output of analyses in Appendices, with a separate appendix for each Analysis Condition. Design drawings can be put as an Appendix too.

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FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

APPENDIX 1.0 FPSO MV26 SKID MAP The following illustration shows the skid map of the FPSO CIDADE DE ITAGUAÍ MV26 as of 18 Feb. 2013.

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FPSO Topside Structural Design Basis 0397-MI20-9006-0050-01 Rev. A

APPENDIX A –

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