7876 Construction Specification Rev G (Without Section 18)_8.27.2013

8/10/2019 7876 Construction Specification Rev G (Without Section 18)_8.27.2013

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FRIEDE AND GOLDMAN LTDJU-2000E Jack-Up Drilling Unit

Based on 7811 Rev. 0 Rev G

JU-2000E CONSTRUCTION SPECIFICATIONS

F&G Job Number 7876

Hull Number GK002


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DOCUMENT REVISION HISTORY

Revision Description By Date

A Initial Issue F&G April, 2013B VSP Commented VSP May, 2013C F&G Updated per VSP comments F&G July, 2013D VSP Commented VSP June 2013E F&G Updated per VSP comments F&G Aug. 2013F VSP Commented VSP Aug. 2013G F&G / VSP Finalized F&G Aug. 2013


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Table of Contents

Section

1.0 CONSTRUCTION SPECIFICATIONS

2.0 STEEL STRUCTURES

3.0 HULL FITTINGS

4.0 INSULATION, JOINER WORKANDDECK COVERING

5.0 FURNISHINGS

6.0 LEGS, STRUCTURE, SUPPORTS, JACKS AND HANDLING

7.0 SAFETY EQUIPMENT

8.0 PAINTING AND MARKING

9.0 DECK MACHINERY

10.0 HAVC SYSTEMS

11.0 REFRIGERATION12.0 MAINAND AUXILIARY MACHINERY

13.0 REQUIREMENTS FOR PIPIG SYSTEMS

14.0 PIPING SYSTEMS

15.0 ELECTRICAL SYSTEMS

16.0 TRIALS AND TESTS

17.0 DRILLING SYSTEMS

18.0 EQUIPMENT LIST


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FRIEDE & GOLDMAN, LTD.MODIFIED 7811 REV.0

TABLE OF CONTENTS

SECTION 1.0 GENERAL PROVISIONS ...................................................................................................................... 2

1.1 INTENT OF DOCUMENTS ................................................................................................................... 2

1.2 GENERAL DESCRIPTION ................................................................................................................... 2

1.3 DEFINITIONS ......................................................................................................................................... 2

1.4 CLASSIFICATION, RULES, REGULATIONS AND CERTIFICATES ............................................. 3

1.5 PERFORMANCE CRITERIA AND DESIGN CONDITIONS ............................................................. 7

1.6 STABILITY REQUIREMENTS .......................................................................................................... 11

1.7 MATERIALS AND WORKMANSHIP ............................................................................................... 11

1.8 CONTRACT PLANS ............................................................................................................................ 11

1.9 BUILDERS DRAWINGS .................................................................................................................... 15

1.10 DRAWING APPROVAL ...................................................................................................................... 15

1.11 AS BUILT DRAWINGS ................................................................................................................... 16

1.12 OPERATION AND MAINTENANCE MANUALS ........................................................................... 16

1.13 PROGRESS SCHEDULE ..................................................................................................................... 16

1.14 WEIGHT AND CENTER OF GRAVITY ............................................................................................ 17

1.15 PHOTOGRAPHS .................................................................................................................................. 17

1.16 INSPECTION ........................................................................................................................................ 18

1.17 SOURCE OF EQUIPMENT ................................................................................................................. 18

1.18 SUBSTITUTIONS ................................................................................................................................ 19

1.19 TRIALS, TESTING AND CLEANING ............................................................................................... 19

1.20 SPECIFICATION AND PLAN OWNERSHIP .................................................................................... 19

1.21 OWNER FURNISHED EQUIPMENT (OFE) ..................................................................................... 20

1.22 CONSTRUCTION PORTFOLIO ......................................................................................................... 20

1.22 NOISE AND VIBRATION ................................................................................................................... 20


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Friede & Goldman, Ltd., Houston, TX USA Rev. G 2

SECTION 1.0 GENERAL PROVISIONS

1.1 INTENT OF DOCUMENTS

It is the intent of this Specification, its Appendices, and the Contract Plans referenced below to provide for theconstruction and delivery to the Owner of a completely outfitted and equipped Self-Elevating Mobile OffshoreDrilling Unit (hereinafter referred to as Vessel). The Vessel is to be constructed, outfitted and furnished to meetthe most current requirements of the American Bureau of Shipping (ABS), IMO MODU Code (2009) including allamendments, and other such specific requirements as are set out in this Specification, the Contract and the ContractPlans.

The Contract shall include the Builders labor, supply and installation of all materials, machinery, equipment,furnishing, and fittings, as specified herein, and as required to deliver a complete and fully operational Drilling Rig,able to drill in water depths up to 121.9 m. (400 ft.) and a drilling depth down to 30,000 ft. (9,144 m.) with 5 " drill

pipe under the conditions and limit as defined in the Specifications. The equipment or materials to be supplied bythe Builder are those items specifically identified as Owner Furnished Equipment (OFE) in Section 18. The Buildershall be responsible for the storage, preservation and installation of all OFE. Upon delivery, the Vessel including allmaterial and equipment furnished by Builder and Owner shall be complete, and all its parts, systems, andappurtenances shall be proven by appropriate commissioning tests and trials to be thoroughly workable as specifiedherein.

1.2 GENERAL DESCRIPTION

The Vessel consists of a modified triangular hull with three (3) triangular truss work legs, each fitted with a spudcan at its lower end. The modified triangular hull is 70.4 meters (231 ft.) long, approximately 76.0 meters (249 ft.)wide, and 9.5 meter (31 ft.) deep. The three legs are spaced with the forward leg on the centerline of the Vessel, andthe two aft legs 45.7 meters (150 ft.) aft of the forward leg and 23.8 meters (78.0 ft.) outboard of the Vesselcenterline. The spud cans, which form the lower segments of the legs, are circular with an outside diameter of 18meters (59 ft.). The total leg length, including the spud can, is 147 meters (481 ft.). The leg design must be able toaccommodate future extensions up to a maximum 167 meters (547 ft.).

The multi-level accommodations provides spaces for catering, housekeeping, hospital, offices, and recreationalfacilities for a crew complement of 140 persons in a combination of one and two man staterooms, generally asshown in the Contract Drawings. The heliport is mounted on the bow of the Vessel on the Vessels longitudinalcenterline. The accommodations also house the helicopter waiting room, radio room, jacking control room and anemergency generator house. .

The drill floor is located on the substructure above the cantilever. The cantilever is capable of being skidded foreand aft, and the drill floor on its substructure can be skidded on the cantilever port and starboard of the Vesselcenterline.

The cantilever and drill floor shall be outfitted with sufficient lengths of continuous (no breaks) electrical (power,control, communication, etc.) service cables. The cables shall be run from point to point without use of intermediateterminal boxes except where required by the design of the equipment or devices being served. Accommodation formovement or translation between structures shall be handled by drag chains at the main deck/cantilever and atcantilever/drill floor interfaces so that the centerline of rotary can be skidded 22.8 meters (75 ft.) aft of the transomand 4.6 meters (15 ft.) either port or starboard. Similarly, where service hoses are used as a catenary, adequate hoseconnections (main deck / cantilever) shall be provided to accommodate the full range of cantilever skidding. Drillfloor translation shall be accommodated without the use of multiple terminals.

1.3 DEFINITIONS

When the term "Owner" is used herein, it shall be understood to mean Vietsopetro or its nominee.

Where the term "Resident Inspector" or "Inspector" or "Owner's Representative" is used, it shall be understood to beany person or member of any organization designated by the Owner for that particular duty.


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International Convention on Tonnage Measurement 1969.

International Convention for the Safety of Life at Sea Consolidated edition, 2009 (SOLAS) includingall amendments

International Regulations For Preventing Collisions At Sea, 1972, consolidated edition 2003 (COLREG)

IMO international convention on the control of harmful anti-fouling systems on ships, adopted Oct. 2001,into force Sept. 2008

IMO Code for Construction and Equipment of Mobile Offshore Drilling Units, 2009. (ResolutionA.1023).

IEC publication 61892, part 1 through 7. Mobile and fixed offshore units Electrical installations

International Tele-Communication and Radio Regulations Convention (1974 and 1982)

USCG regulations for foreign flagged vessels; CFR 155, CFR 159, CFR 164

UK Civil Aviation Authority, CAP 437 (for heliport design) 7 th edition, May 2012.

WHO / US department of health and human services, CDC, Vessel sanitation program, constructionguidelines

ILO, 92 and 133, Accommodation of crews convention, as applied to MODUs by the Flag State

IMO FSS (Fire Safety Systems) code (2007 edition)

IMO resolution A.468 (XII) Codes of noise levels on board ships

ABS Guide for Certification of Cranes and lifting appliances 2007, including all 2012 updates

IMO LSA (Life-Saving Appliances) Code (2010 Edition)

ISO 6954 Mechanical Vibration Guidelines for the Measurement, Reporting and Evaluation ofVibration with Habitability on Passenger and Merchant Ships

The Builder shall obtain and deliver all certificates and/or documents, except for those which apply to OFE, coveringthe approval and indicating compliance with the above regulations as listed below. An official number shall be obtained

by the Owner and marked on Vessel by Builder as directed.

1) Interim Class Certificate (issued by ABS)2) Temporary Stability Letter (issued by ABS)3) Mobile Offshore Drilling Unit Safety Certificate* (issued by VR)4) CAP 437 Helideck (Statement of Fact, issued by ABS)5) Provisional International Load Line Certificate* (issued by VR)6) International tonnage Certificate* (69 Convention) (issued by VR)7) International Oil Pollution Certificate IOPP* (issued by VR)8) International Sewage Pollution Prevention Certificate * (issued by VR)9) Statement of Fact, in compliance with Prevention of Pollution by Garbage from Ship (issued by VR)10) International Air Pollution Prevention Certificate* (issued by VR)11) Engine Air Pollution Prevention Certificate* (issued by VR)12) ABS Crane Register Certificates (CRC) (issued by ABS)13) Statement of fact, compliance with API Spec 2C (issued by ABS)14) Radio station inspection report by approved 3 rd party (issued by local health authority)15) De-rating Exemption Certificate (issued by local agency)16) Builders Certificate (issued by Builder)17) Bill of Sale (issued by Builder)18) Class Approved Booklet of Operating Conditions (Marine Operating Manual) (issued by Designer)19) Parts & Maintenance Manuals for BFE and OFE equipment20) Certificates required of BFE equipment and pressure vessels21) Certificates required of OFE equipment and pressure vessels22) Certificate of Pressure Vessels and Pressure Vessel Register Book23) Suez Canal Special Tonnage Certificate (issued by ABS)24) Statement of Fact, in compliance with ILO No. 92 (issued by ABS)25) Potable Water Certificate


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26) Seaworthiness Certificate (issued by VP)27) Parats & Maintenance Manuals for FNG furnished equipment (issued by Designer).28) Three (3) sets of prints of hull structure, outfitting, piping and electrical as-built drawings (issued by

Builder).29) One (1) set electronic AutoCAD (.DWG) and (.PDF) format of hull structure, outfitting, piping and

electrical drawings based on as-built drawings and Lightship Weight Estimate Report ) editableelectronic format) (issued by Builder).

30) One (1) set each of prints and one (1) set electronic (.TIF/.PDF) format of applicable Regulatory/ClassSociety Approved: Design Drawings and Approval letters, Inspection Reports, Material TraceabilityRecords, Construction Portfolio, Commissioning Reports, Industrial Piping Systems Analysis, Fire Plan,Electrical Short-Circuit Analysis, Electrical Load Analysis, Protective Device Coordination Study,Inclining & Deadweight Survey Report (issued by Builder).

Notes: The Certificates which are issued by VR and denoted with an asterisk * above will be requested aStatement of Fact issued by ABS.

The Owner shall be responsible for obtaining the following Certificates:

1) Certificate of Unit Name, Official Number and Flag State Registry2) An Official Number shall be obtained by the Owner and marked on the rig by the Builder as directed.3) Radio Station License4) Radio Safety Certificate

5)

All certificates required of OFE equipment6) Insurance Certificate7) Certificate of Financial Responsibility8) Minimum Safe Manning Certificate

1) In addition, the Vessel shall be designed and built utilizing the following applicable internationalstandards and recognized conventions where they are practicable or called out by Class and do notconflict with the Class Rules or Regulatory Requirements: Electrical Cable: Cables are to be selectedaccording to IEC 331, 332-3 CAT A and ABS requirements. All cables are to be approved by theClassification Society.

2) A60 Windows as shown on the Contract Plans and as required by the Regulatory Bodies shall complywith ABS requirements and are to be approved by the Classification Society.

3) Ambient Temperature for Motors: Motors shall comply with ABS requirements.

4) IP Model Code of Safe Practice, Part 15 - Area Classification Code for Petroleum Installations

5) Blowout Prevention Equipment and Systems

Blowout Preventers:API-RP53API 16A

NACE MR01-75Hi-Temp Service

Choke & Kill Manifold, Piping, and Auto ChokesAPI 6AAPI 16CAPI RP-53

NACE MR01-75PSL-03Hi-Temp Service

DiverterAPI-RP-64

NACE MR01-75

BOP Controls


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API 16DAPI 16EAPI 53

6) AWS D1.1 - Structural Welding Code - Steel (latest revision)

7) AISC - Specification for the Design, Fabrication and Erection of Structural Steel For Buildings

8) International Association of Classification Societies (IACS) Recommendation No. 47 (5 Oct 2010) Part A Shipbuilding and Repair Quality Standard for New Construction

9) ANSI B31.3 - Chemical Plant and Petroleum Refinery Piping (latest edition)

10) IP Code of Practice Part 1 Electrical

11) IP Code of Practice Part 8 Drilling and Production Safety Code for Offshore Operations

12) ASTM American Society of Testing of Materials

13) AISE Association of Iron and Steel Engineers

14)

SNAME T&R 5-5A

15) NACE National Association of Corrosion Engineers

16) All calculations for cooling and heating shall be in accordance with the applicable sections ofSNAME technical and research bulletins 4-7 and 4-16, ISO 7547 (accommodations), ISO 8861(engine rooms), ISO 8862 (control rooms) and ASHRAE standards including, but not limited to,standards 26, 55, and 62.

17) ABS Guide for Crew Habitability on Offshore Installations (with regards to noise and vibration only does not apply to room size requirements)

18) ABS Guidance Notes on Risk Assessment Application for the Marine and Offshore Oil and GasIndustries

19) AISC-ASD 9Ed American Institute of Steel Construction Manual of Steel Construction AllowableStress Design 9 th Ed.

20) ASHRAE American Society of Heating, Refrigeration and Air Conditioning Engineers

21) API Spec 2C Specification Offshore Cranes, last Edition

22) API Spec 4F Specification for Drilling and Well Servicing Structures

23) API Spec 7K Specification for Drilling Equipment

24) API Spec 8C Specification for Drilling and Production Hoisting Equipment

25) API Spec 9B Specification for Application, care, Use of Wire Rope for Oil Field Service

26) API Spec 16A Specification for BOP and Associated Equipment

27) API Spec 16C Specification for Choke and Kill System

28) API RP14C Recommended Practice for Analysis, Design, Installation and Testing of Basic SurfaceSystem on Offshore Production Platforms

29) API RP14E Recommended Practice for Design and Installation of Offshore Production PlatformPiping Systems


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30) API RP53 Recommended Practice for Blowout Prevention Equipment System

31) API RP505 , 1 st, Reaffirmed Nov. 2002, Recommended Practice for Classification of Location forElectrical Installation at Petroleum Facilities Classified as Class 1, Zone 0, Zone 1 and Zone 2

32) ASME Rules for Construction of Pressure Vessels

33) ASME/ANSI Chemical Plant & Petroleum Refinery Piping

34) AWS D1.1 Structural Welding Code

35) IEEE 45 Recommended Practice for Electrical Installation on Shipboard

36) IEEE 1580 Recommended Practice for Marine Cable for Use on Shipboard and Fixed or FloatingMarine Platforms

37) IEC 61892 International Electro Technical Commission, publication for Mobile and Fixed Platforms

38) ISO 10423 Specification for Valves, Wellhead and Christmas Tree Equipment

39) ISO 14726 Piping Color Code

40) SMACNA Sheet Metal and Air Conditioning Contractors National Association

41) SNAME T&R Bulletin 5-5, Guidelines for Site Specific Assessment of Mobile Jack-Up Units.

42) SNAME T&R Bulletin 5-5A, Recommended Practice for Site Specific Assessment of Mobile Jack-Up Units.

All fees incidental to the foregoing inspections, certificates, etc., shall be paid by the Builder except for those required forOFE.

Owner shall be responsible for registering the Unit with the Flag authorities, at his expense, at least 60 days prior to theContractual delivery date.An official number shall be obtained by the Owner and marked on vessel by Builder.

1.5 PERFORMANCE CRITERIA AND DESIGN CONDITIONS

Definitions

Fixed Loads: Consist of the following, all of which are permanently attached and form part of the drilling Vessel:quarters, heliport, substructure, cranes, winches, engines, generators, pump, electrical equipment, electrical cables,drilling machinery, cementing unit, well logging unit, foundations, piping, rigging, all fluids in equipment at normaloperating levels, etc.

Movable (fixed) Loads: Consist of the Cantilever, Drill Floor and their fixed machinery, and equipment (i.e. mudreturn tanks, cement package, shale shakers, mud process machinery, drawworks house, drilling machinery,

pump(s), electrical equipment, electrical cables, derrick, piping, rigging, all fluids in equipment at normal operatinglevels, etc.).

Variable Loads: Consist of the following items which are readily removable, shifted, or consumed during thedrilling operations: bulk mud, bulk chemicals, bulk cement, liquid mud, liquid cement, casing, drill pipe, drillcollar(s), drill water, diesel oil, lube oil, crew, crew supplies, potable water, setback load, conductor tensioner load,mud logging unit, BOPs, well test equipment, skimmer tank contents, well logging unit, etc. Also includesSubstructure Drilling Loads, consisting ofHook or rotary loads, setback load, and conductor tensioner load.


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General Operating Conditions:

TemperatureMinimum -20 C for steelMinimum -10 oC for airMaximum HVAC design temperature: 45 oC (Relative Humidity 90%)

Equipment operating:45 C

Relative HumidityMinimum 30 %Maximum 90 %

Sea water temperature:Minimum 0 CMaximum 32 C

Design Operating Conditions 1

Standard Benchmarks:

Water Depth (meters) 100 107 122Maximum Wave Height (meters) 22.0 20.7 17.1Corresponding Wave Period (sec) 15.5 14.7 14.5Max Wind Velocity (m/s - one min. avg.) 36 36 36Surface Current (m/s) 0.51 1.03 0.77Air Gap (meters) 19.8 15.2 12.2Penetration (meters) 3 3 3Penetration (Maximum) site specific TBD TBD TBDVariable Load (mt.) 3,766 3,766 3,766Minimum Design Temperature -20 C -20 C -20 C

Additional Benchmarks:

Water Depth (meters) 107 122Maximum Wave Height (meters)

10.6 10.6Corresponding Wave Period (sec) 10.1 10.1Max Wind Velocity (m/s - one min. avg.) 22 22Current 5m below / 50m below 1.0 / 0.7 1.0 / 0.7Air Gap (meters) 22 19Penetration (meters) 5 5Variable Load (mt.) 4533 4533Minimum Design Temperature -20 C -20 C

Design Storm Survival Conditions 1

Standard Benchmarks:

Water Depth (meters) 100 107 122Maximum Wave Height (meters) 22.0 20.4 18.3Corresponding Wave Period (sec) 15.5 15.5 15.5Maximum Wind Velocity (m/s - one min. avg.) 44.8 51.4 51.4Surface Current (m/s) 0.51 1.03 0.77Air Gap (meters) 19.8 15.2 12.2


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Penetration (meters) 33 3

Variable Load (mt.) 2,995 2,995 2,995

Minimum Design Temperature -20 C -20 C -20 C

Additional Benchmarks:

Water Depth (meters) 107 122Maximum Wave Height (meters) 17.1 17.1Corresponding Wave Period (sec) 13.2 13.2Maximum Wind Velocity (m/s - one min. avg.) 29 29Current (m/s) 5m below / 50m below 2.1/1.36 2.1/1.36Air Gap (meters) 22 19Penetration (meters)

5 5

Variable Load (mt.) 2,995 2,995

Minimum Design Temperature -20 C -20 C

1 These ratings based on:- ABS-approved calculation methodology- Leg length: 167 meters- Cantilever position: CL rotary 22.8 meters aft of transom- Conductor (915 mm dia) included- No marine growth- P-delta and dynamic amplification per ABS

Hull Structural Design Loads

- Maximum Combined Variable (subject to

location, water depth, environmental conditions,stability nomograms)

6,488 mt. (14,300 kips)

Drillfloor/Cantilever Load Maximum CombinedTotal

1360 mt. (3000 kips)

- Consisting of any proportion of the following:Hook 750 st. (1500 kips)Rotary 750 st. (1500 kips)Set Back 445 mt. (980 kips)Conductor Tensioner 408 mt. (900 kips)Skimmer Tank Load 58 mt. (127 kips)

Maximum Combined Load when CantileverSkidding

431 mt. Setback + 508 mt. Cantilever PipeRack

Cantilever Pipe Rack Load Total 508 mt.

Deck Structural Design Loads

Main Deck (Inside Pipe Rack) 500 lbs/ftMain Deck (Outside Pipe Rack) 415 lbs/ft2Cantilever Deck (Inside Pipe Rack) 500 lbs/ft2Cantilever Deck (Outside Pipe Rack) 270 lbs/ft2Drill Floor (Working Areas) 400 lbs/ft2


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Tank Total Capacity UnitsSlugging Pit 170 bblsBrine 1340 bblsReturn Pits, Sand Trap, treatment tanks 528 bblsBase Oil 1340 bblsTrip Tank (2) 63 bblsStripping Tank 19 bbls

Skimmer Tank 126 bbls

Pipe Rack - Cantilever 453 mPipe Rack Main Deck 241 m

Design Towing Conditions

1. Wet TowField TransitAllowable Motion

6 degrees single amplitude roll or pitch atthe natural period of the unit, plus 120%of the gravity load at that angle ofinclination.

Leg Length Fully Retracted 167 meters

2. Wet TowOcean TransitAllowable Motion

15 degrees single amplitude roll or pitchat a 10 second period, plus 120% of thegravity moment caused by the angle ofinclination of the legs (ABS)

Leg Length Fully Retracted 130.5 meters

3. Dry TowLeg Length 167 meters It is to be confirmed that the structure of the Vessel is designed for dry tow with propersea fastening.

1.6 STABILITY REQUIREMENTS

The Builder shall prepare and obtain Classification Society approval of the stability calculations. The stabilitycalculations shall be based on the Vessel as delivered and verified by the inclining test of the Vessel. Stabilitycalculations shall be included in the Operations Manual covering the operating conditions of the Vessel as specifiedin sub-paragraph 1.14 of this Section of the Specification. The location of air escapes, ventilation openings, hatches,and personnel accesses shall be as shown on the Contract Plans.

1.7 MATERIALS AND WORKMANSHIP

All material, machinery and equipment furnished by the Builder shall be new and of a grade suitable for the serviceintended, and approved by Classification Society and the Owner.

1.8 CONTRACT PLANS

All of the Drawings listed below Contract Drawing List are incorporated into and form an integral part of thisSpecification and are hereafter referred to as "Contract Plans, Drawings or Contract Drawings. In the eventthere are conflicts or inconsistencies between the Specification and the Contract Plans, the Specification will prevail.In any event, if the Builder discovers a conflict or an inconsistency between the Specification and any of theContract Plans, he shall bring such conflict or inconsistency to the attention of the Owner who shall promptly

provide the Builder with a resolution. Under no circumstances shall such resolution cause the Builder to request achange order unless the resolution clearly exceeds the intent of the Specification.

The Specification calls for compliance with Classification Society and other Regulatory Body requirements asdefined in paragraph 1.4. Builder shall modify and supplement the Contract Plans as necessary to meet the fullrequirement of paragraph 1.4 and shall build the Vessel according to such modified and supplemented drawings.


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If Contractor determines that there is a better or simpler way of building any part of the Vessel in a way that doesnot affect the performance of the Vessel or its compliance with any of the regulatory bodies, Contractor shall be

permitted to redesign such part of the rig to provide a better or simpler arrangement, as long as the redesign isapproved by the Designer and the Owner and it meets all Regulatory Body and Classification Society requirementsand does not result in a lightship weight increase.

All sizes, dimensions, quantities and descriptions shown on the Contract Plans are given for the purpose of guidingthe Builder in developing the detail design and working drawings. The Builder shall develop his own measurementsand shall not scale from the Contract Plans. However, no departure from principal characteristics, basicarrangements and major dimensions will be allowed. While it is recognized that exact adherence to structuralarrangements, machinery layout, etc., is not always fully possible in progressing from the Contract Plans to thedetailed design and working drawings, any deviations made by the Builder shall be kept to an absolute minimumand be subject to the Owner's prior written approval. Deviations permitted for the Builder's convenience shall beconsidered a development of the Contract Plans and Specifications, and not as a basis of "change orders" or "extrawork". All such changes or deviations including weight increase or decrease shall be noted in written formaccompanying the submittal of the working plan for Owner's approval.

The Contract Plans which form a part of these Specifications are as follows:

Project Documentation

SP-7876-001 Construction Specification

WE-7876-001 Preconstruction Weight Estimate

OP-7876-001 Marine Operating Manual

NA-7876-001 Stability Analysis Report Summary

NA-7876-101 Loading Condition Sample

EL-7876-001 Preliminary Electrical Load Analysis

EL-7876-002 Preliminary Short Circuit Analysis

EL-7876-003 Preliminary Emergency Battery Calculation

TP-7876-001 Cantilever Beam and Drill Floor Test Procedure

TP-7876-002 Jacking Trials Procedure

TP-7876-003 Inclining Experiment Procedure

TP-7876-004 Cantilever Beam & Drill Floor Weighing and CG Procedure Sample

TP-7876-005 Cantilever Beam & Drill Floor Weighing and CG Report Sample

Arrangement Drawings

7876-J-001 General Arrangement - Outboard Profile

7876-J-010 Inner Bottom Tank Arrangement

7876-J-011 General Arrangement - Machinery Deck 1830 ABL

7876-J-012 General Arrangement - Machinery Deck 5640 ABL

7876-J-013-1 General Arrangement - Main Deck

7876-J-013-2 General Arrangement - Top Deck Plan

7876-J-014 General Arrangement - Drill Floor and Cantilever Beam Pipe Rack

7876-J-015 General Arrangement - Cantilever Beam Cellar Deck and Mud Processing Area

7876-J-016 Primary Structure Plan

7876-J-020 General Arrangement Quarters

7876-J-030 Lines Plan

7876-J-034 Cathodic Protection Arrangement


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7876-J-035 Loadline Mark & Draft Plan

7876-J-040 Capacity and Deck Load Plan

7876-J-041 External Watertight Integrity Plan

7876-J-042 Internal Watertight Integrity Plan

7876-J-050 Hazardous Area Plan

7876-J-060 Preliminary Fire Control Plan

7876-J-061 Escape Route Plan

7876-J-090 Structural Fire Protection Plan

7876-J-092 Leg and Jack Tower Tolerance Plan

7876-J-093 Cantilever Beam Tolerance Plan

7876-J-094 Leg Jig Guidance Drawing

7876-J-099 F&G Standard Symbols and Drawing Aids

7876-J-600 Jacking Foundation & Rack Chock Arrangement

Global Scantling Drawings7876-J-100-1 Scantling Plan - Main Deck

7876-J-100-2 Scantling Plan - 5640 Flat

7876-J-100-3 Scantling Plan - Inner Bottom

7876-J-100-4 Scantling Plan - Bottom Plating

7876-J-101-1 Scantling Plan - Transverse Sections - Frames 2A to 10A

7876-J-101-2 Scantling Plan - Transverse Sections - Frames 11 to 22

7876-J-101-3 Scantling Plan - Transverse Sections - Frames 13 to 28, 30, 31 & Side Shell

7876-J-102 Scantling Plan - Longitudinal Bulkheads

7876-J-103 Scantling Plan - Longitudinal Girders

7876-J-104 Scantling Plan - Leg Well Modules

7876-J-105 Framing Below the Jack Foundation and Lower Guide

7876-J-106 Dry Tow Strong Boxes

7876-J-120 Leg Structure

7876-J-121 Spudcan Structure

7876-J-122 Racks for JU-2000E

7876-J-123 Rack Chord Detail

7876-J-130 Scantling Plan - Superstructure

7876-J-131 Structural Plan - Heliport

7876-J-132 Structural Scantling Paint locker / heavy storage7876-J-151 Jack Foundation Bracing

7876-J-152 Pump Tower Support Arrangement and Details

7876-J-620 Jackcase Foundation Structure and Details

7876-J-621 Jackcase Foundation Machining and Miscellaneous Details

Equipment Dependent Drawings

7876-J-140 Scantling Plan - Substructure and Cantilever Beams


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7876-J-141 Drill Floor Structure

7876-J-142 Cantilever Support, Guides and Securing Arrangement

7876-J-143 Cantilever Bearing Plates

7876-J-144 Cantilever Skidding Jack Foundation

7876-J-145 Drill Floor Skidding Jack Foundation

7876-J-150-1 Crane Foundation - Crane 2 & Details (Stbd Fwd Crane)

7876-J-150-2 Crane Foundation - Crane 1 & Details (Port Aft Crane)

7876-J-150-3 Crane Foundation - Crane 3 & Details (Stbd Aft Crane)

7876-J-154 Main Engine Foundation

7876-J-155 Mud Pump Foundation

7876-J-156 Conductor Tensioning Foundation

7876-J-157 P-Tank Foundation

7876-J-158 Mooring Winches Foundation

7876-J-160 BOP Handling and Service Crane Support Structure

7876-J-161 Life Boat and Davit Foundations7876-J-162 Towing Bit and Towing Pad Arrangement and Details

7876-J-199 Hull strength analysis for loadout with two beams

Piping Flow Diagrams

7876-J-201 Piping Diagram Preload Supply & Dumps

7876-J-202 Piping Diagram Bilge and Stripping System

7876-J-203 Piping Diagram Jetting System

7876-J-204 Piping Diagram Salt Water Service

7876-J-210 Piping Diagram Main Engines

7876-J-212 Piping Diagram Brake Cooling System

7876-J-213 Piping Diagram Fire Fighting System

7876-J-220 Piping Diagram Fresh Water & Potable Water System

7876-J-222 Piping Diagram Drill Water System

7876-J-230 Piping Diagram Diesel Oil System

7876-J-231 Piping Diagram Lube Oil & Dirty Oil System

7876-J-232 Piping Diagram Helicopter Refueling System

7876-J-240 Piping Diagram Compressed Air System

7876-J-241 Piping Diagram Bulk, Barite, Gel & Cement System7876-J-260 Piping Diagram High Pressure Mud & Cement System

7876-J-261 Piping Diagram Low Pressure Mud System

7876-J-262 Piping Diagram Low Pressure Mud Processing System

7876-J-265 Piping Diagram Brine & Base Oil System

7876-J-282 Piping Diagram Single Point Discharge System

7876-J-295 Piping Diagram Tank Gauging System


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Electrical One-Line Diagrams

7876-J-301 One Line Diagram of Power System

7876-J-302-1 One Line Diagram of 480V Distribution (Main MCC 1)

7876-J-302-2 One Line Diagram of 480V Distribution (Main MCC 2)

7876-J-303 One Line Diagram of 480V Distribution (Drilling MCC's)

7876-J-304 One Line Diagram of 480V Distribution (Cantilever Drilling MCC's)

7876-J-305 One Line Diagram of 480V/230V Distribution (Emergency)

7876-J-307 One Line Diagram of 480V Distribution (Ventilation MCC's)

7876-J-308 One Line Diagram of 230V Distribution (Main)

7876-J-309 One Line Diagram of 230V Distribution (Galley Power Panels)

1.9 BUILDERS DRAWINGS

During the detail engineering phase the Builder shall develop his own detailed measurements, prepare and provideall working and construction drawings, shop drawings, sketches and calculations for the approval of the Owner and

Classification Society prior to the use of these drawings. The Builder shall also prepare and provide full compositelayouts and / or isometric drawings (for machinery spaces and accommodation corridors), including piping,electrical cable ways, and ventilation ducts, for review and comment by the Owner. Approval of these drawings bythe Owner or Classification Society does not relieve the Builder of his responsibility to provide a complete andoperable Vessel in accordance with the requirements of these Specifications. If it is found, after approval of thedrawings by the Owner or Classification Society, that a drawing is in error or is not in compliance with theseSpecifications, the Builder shall correct the drawing and make any changes to the Vessel required to ensurecompliance with the Specifications at no additional cost to the Owner.

It is to be clearly understood that the Contract Plans are not intended to show all details of the work to be performed.In particular the scantling plans, even when already approved by the Classification Society, do not purport to showall structure required for this design. The Builder shall have included in his Contract price the cost of suchadditional steel work as may be required by the Classification Society when working drawings are submitted forapproval and for mutually agreed scantling increases which the Owner may request for Builder-developed structure

not shown on the Contract Plans.

1.10 DRAWING APPROVAL

The Builder shall provide the Owner, within thirty (30) days after the Contract date, a schedule of detailed workingdrawings to be submitted for approval. The schedule shall list for each drawing the proposed and actual submittaldates, approval dates and revision submittal and approval dates. The schedule shall be brought up to date quarterlyand resubmitted to the Owner.

The Builder shall submit six (6) copies of all drawings, sketches, diagrams, etc., and calculations developed by himto the Owner for approval. The Builder shall simultaneously submit to both Classification Societies as well as toother applicable Regulatory Bodies and agencies all documents required by these organizations to obtain thecertifications listed in Section 1.4. The Builder is responsible for any modifications to the drawings or calculationsrequired by the Classification Societies or Regulatory Bodies or agencies. The requested modifications shall bemade in a timely manner and shall be resubmitted to all parties including the Owner for approval. The Owner shallnormally approve the drawings within twenty (20) working days after receipt or the Owner shall advise the Builderof discrepancies, which would require revision and re-submittal. For drawings requiring urgent approval, Ownershall return within ten working days. Two (2) copies of all drawings submitted to and returned by the ClassificationSociety will be issued by the Builder to the Owner within ten days of receipt.


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1.11 AS BUILT DRAWINGS

Upon completion of the construction, the Builder shall provide the Owner and the Designer with one (1) set ofAutoCAD *.dwg files on optical disk and one set of photocopy "as-built" working plans, including tank tables (in

barrels, liters, metric tons, VCG, LCG, TCG, and longitudinal and transverse free surface moment as a function ofactual sounding height in meters and millimeters), capacity plan, curves of form, stability booklet, all diagrams, andmaterial traceability booklet (construction portfolio) .

The Builder shall further provide the following documentation:The hazardous area equipment registers using the format, supplied by the Owner. One picture for each equipmenttype shall be taken and filed as well as all certificates of the hazardous equipment shall be filed in one commonfolder according to a grid plan, which shall be added to the hazardous area drawings.

The following studies and calculations shall be provided by the Builder: Load analysis in transit, normal drilling, back reaming, emergency mode, including load cases for UPS and

chargers. Power system study dossier, including short circuit calculations, earth fault calculations, load flow, large

motor inrush voltage drop, transformer inrush voltage drop, cable sizing and selection tables, totalharmonic distortion and battery and cable sizing calculations.

1.12 OPERATION AND MAINTENANCE MANUALS

The Builder shall furnish to Owner one copy in Microsoft Word on optical disk and six photocopies of all operationand maintenance manuals and parts lists for all BFE. The Builder shall furnish to the Designer one copy of alldocumentation furnished to the Owner.

The operation and maintenance manuals shall include information describing; installation, operation, safety,maintenance, adjustment, wiring, and parts lists, with suitable illustrations and dimension drawings. The manualshall be formatted and organized according to Owner requirements.

Builder shall obtain from each vendor of BFE a list of recommended spares for one year's service, compile thesespares lists in a cross indexed booklet form and present them to the Owner for his subsequent use. This bookletshall be provided to the Owner at least ninety days prior to delivery of the Vessel and notification of any longdelivery spares should be given as soon as possible during the construction of the Vessel.

All information regarding the as-built condition of the vessel necessary for completion of the operating manual shall be submitted to the Owner in a timely manner. Schedule of submittal for this information shall be mutually agreedupon between the Builder and the Owner.

A software register, identifying all installed support, operating and application software to be provided by theBuilder. For each release of software installed in a system, a back-up and tools for upload/download of updates shall

be provided by the Builder, together with upload/download instructions.

1.13 PROGRESS SCHEDULE

The Builder shall, within thirty days after execution of the Contract, prepare and furnish the Owner or his

Representative a detailed key event production schedule in the form of a Gantt bar graph based on Microsoft Projectsoftware or another recognized planning program, such as Primavera showing planned construction progress of theVessel. The Builder shall provide a progress report to Owner or his Representative two weeks after Contractexecution. After approval of the production schedule by the Owner or the Representative within ten working daysafter receipt thereof, the production schedule (herein called the "Production Schedule") shall be the basis ofinterpretation of actual construction progress of the Vessel.

This Production Schedule shall include, but shall not be limited to, the following:

The schedule shall as a minimum be of a level 3 type with sufficient detail to allow tracking of progress anddetermination of the critical path.


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An erection sequence to show the order in which the construction of the Vessel shall take place. This Schedule shall be in a form detailing all major activities with time duration of each. The Schedule shall be prepared in sufficientdetail to show all production items including the proposed start and finish dates for hull groups, machinery items,

piping systems, electrical items and systems, ventilation and air conditioning systems, and joiner items.

The schedule shall indicate by milestones identified to be achieved during the construction. The schedule shallinclude planned issue dates for IDC, IFA, AFC and As Built. The final set of drawings shall be: As Built and

Commissioned

A schedule of proposed plans: This schedule shall include all plans to be prepared by the Builder and hissubcontractors.

A schedule of required dates for material, showing the dates on which all material items, including OFE, arerequired at the shipyard for fabrication, erection or installation.

A schedule of documentation submittal to Classification Society or Regulatory Bodies.

A schedule of documentation deliverables to Owner.

All tasks shall be appropriately linked according to their interdependence, and the Builder shall use the Tracking Ganttfeature of the Microsoft Project software to indicate actual progress against planned activities and to identify the critical

path for completion.

Progress reports are to commence thirty (30) days following the date of the Contract signing through completion of theVessel.

These schedules shall be kept current with the progress of the Work, revised to show all changes, progress (percentagecomplete) and delays, and shall be submitted to the Owner weekly for his information and review. Percentagecomplete shall not be limited to an evaluation of the steel tonnage completed, but shall include evaluations of the statusof items such as engineering and systems installation. As each item on the schedule is completed, it shall be soindicated. Dates of submittals and approvals shall be noted.

1.14 WEIGHT AND CENTER OF GRAVITY

Within ninety (90) calendar days after date of award, the Builder shall submit for approval by the Owner anindependently prepared estimate of light ship weight and center of gravity. This estimate shall describe the weight andcenter of gravity of the Vessel in comprehensive detail and shall include summaries and work sheets showing detailedcalculations.

Within thirty (30) days of the receipt of the Builder's estimate of the lightship weight and center of gravity, the Ownershall approve the estimate. Thereafter, the Builder shall be responsible for monitoring the weight and center of gravitycharacteristics adjusted for authorized departures from the construction contemplated in the approved estimate.

Departures from the construction contemplated in the approved estimate, which affects the light ship weight, and centerof gravity shall not be undertaken until the Builder has submitted to the Owner his estimate of the effect on weight andcenter of gravity of the Vessel, and obtained written approval to proceed with the departure. Departures, of which thetotal effect changes any weight group by less than 250 kg, may be considered negligible and will not require writtenapproval with respect to weight.

As an aid to weight, trim and stability control, the Builder shall submit quarterly to the Owner a tabulation of approveddepartures and their cumulative effect on weight and center of gravity of the approved light ship. In addition, insubmitting plans for approval, where such plans involve departures from the type of construction contemplated in designdrawings or the estimate, the Builder shall itemize such departures and their effect on light ship weight and center ofgravity in his letter of transmittal. Where material substitutions are required, Builder shall submit the proposedsubstitutions to the Owner so that the optimum substitution can be chosen

1.15 PHOTOGRAPHS

During the construction of the Vessel, the Builder shall make approximately one hundred (100) photographs to identify progress of construction, and shall furnish the Owner with one set of these photographs. Upon completion of the


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finished Vessel, the Builder shall make approximately two hundred (200) photographs showing exterior and interiorviews as directed and furnish three prints each and the digital copies on optical disk (CD-ROM/DVD) to the Owner andDesigner.

Photographs shall only be taken by the Builder or the Owner. The public release of any photographs shall be approved by the Owner.

1.16 INSPECTION

The Vessel is to be built, equipped and delivered under the inspection and subject to the approval of the Owner,Classification Society and applicable Regulatory Bodies.

The Builder shall have a quality control system and inspection force of his own to insure the quality of workmanship andmaterials at the yard and at his vendors plants as necessary. The construction project shall be administered on the basisof an ISO 9000 Quality Management System. Failure on the part of the Builder to provide these safeguards shall notlater be the basis of a claim for delay in delivery if workmanship or design of a vendor is rejected by the Owner. Failureon the part of the Owner to identify substandard quality at a particular time does not relieve the Builder of itsresponsibility to correct this problem when it is discovered. Radiograph inspection shall also be provided in accordancewith Section 2 of these Specifications.

All material and workmanship shall be subject to inspection by representatives of the Owner at any reasonable time

during manufacture or construction and at any or all places where such work is carried on.

The Owner or his representative shall have the authority to reject workmanship or material whenever found defective,not in conformity with good shipbuilding practice, or not in accordance with the requirements of the Plans andSpecifications.

The Builder and Owner will coordinate the scheduling of inspection personnel to minimize the disruption to both sides by giving a minimum of one working day's but not less than twenty-four hours, written notice prior to all inspections.

The Builder shall furnish, without additional charge, all facilities, including air conditioned furnished offices, heat, light,telephones, drawing tables, stools, desks, chairs, filing cabinets, personal computers with e-mail connections, etc., asmay be required for the resident project team. Long distance telephone calls, faxes and mailing costs, incurred by the

project team will be paid for by the Owner. Access to yard and office shall be available twenty-four hours a day sevendays a week.

1.17 SOURCE OF EQUIPMENT

Unless specifically stated to the contrary in this Specification, the Builder shall furnish and install all necessary materials,machinery, equipment, appurtenances, etc., as specified herein for the construction of a complete Vessel.

Any outfit or equipment which may be OFE for use on the Vessel, upon delivery to the shipyards by Owner at Builder'syard, or by truck to his warehouse, shall be stored and preserved until the time of installation by the Builder to prevent

pilferage, breakage, weather damage, etc., and shall be insured against all risk, and shall be installed and/or deliveredonboard prior to acceptance of the Vessel. Items of equipment, material and certified drawings to be furnished by theOwner will be delivered free to the Contractor's yard. The Builder shall receive, unload, handle, inspect, preserve and beresponsible for all materials and articles furnished by the Owner under these Specifications, do all uncrating, cleaningnecessitated by wear or exposure after delivery to the Builder, care for the material and store same in a suitable mannerafter Owner's inspection, including warehousing where usual, until such time as required by installation on board theVessel. All OFE shall be segregated from any Builder or other Owner equipment and its location ID shelf, spare numberidentified. The OFE should then not be moved from this location without prior notice to, and approval by the Owner

The Builder, upon delivery by Owner, shall inspect OFE and endeavor to determine that no shipping damage, shortagesor obvious defects exist prior to the acceptance of such items. The Builder shall immediately notify the Owner in writingshould any such damage or defect be found. Thereafter any damages, shortages shall be rectified/replaced at the builderscost.

Copies of all material receiving sheets whether OFE or BFE, shall be transmitted to Owner's representative withintwenty-four hours of receiving the material. Receiving sheet shall denote item, manufacturer, model, type, serialnumber, and other name plate data, including area where stored, and whether anti-condensation heaters have beeninstalled where necessary. Copies shall be in triplicate.


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All OFE material must be of a usable quality suitable for the service intended and will be subject to inspection by theBuilder. Material found to be unsuitable shall be rejected in writing.

It shall be the responsibility of the Builder to provide suitable 3-conductor cords and plugs to meet regulations forgrounding the portable electrical appliances and to suit the receptacles provided. Electrical/mechanical equipment shall

be protected by use of heat lamps and/or supplying electrical source for equipment heaters according to manufacturers

recommendations.

The Builder shall then assemble, fit and install the items in their proper locations in a satisfactory manner, ready for use,and shall deliver them with the completed Vessel in a condition at least equal to that in which they were found at thetime of the Owner's inspection approval. All work of installation, assembling, fitting, fastening, wiring, piping and allconnections pertaining thereto shall be performed by the Builder as part of the Contract at no additional cost to theOwner.

In the case of articles or materials supplied by the Owner, the Builder shall follow the manufacturer's installationinstructions, unless they do not specifically apply to the installation, at which time the Builder shall notify the Ownerwho will furnish appropriate instructions. The Builder shall not be relieved of his responsibility in the event of faulty orincorrect installation and securing on the Vessel of such equipment or apparatus.

1.18 SUBSTITUTIONS

Where materials, fittings or equipment are specified herein by vendor or trade name, it is the intent that such product befurnished and installed by the Builder. Where the terms "or equal" or "similar to" are used herein in conjunction withsuch vendor or trade name, the Builder may propose articles substantially similar in design, quality and construction

produced by reputable manufacturers other than those indicated, but such proposed substitutions shall be submitted to theOwner for written approval, with reasons for substitution and complete description and specification of the article. Itshall be understood that any proposed substitution shall not be grounds for delay of delivery or increase of cost exceptwhere specifically stated in the proposal and as agreed thereupon in writing by the Owner. Owner's written decisionregarding the acceptability or otherwise of any substitution shall be final, and such decision shall be given to Builderwithin ten days. Substitution will not be allowed among other reasons if, in the opinion of the Owner, spare parts for the

proposed equipment are not readily available on an international basis.

1.19 TRIALS, TESTING AND CLEANING

All in place trials and testing shall be in accordance with Section 16 herein. Cleaning and testing of all piping systemsshall be in accordance and with the standards set forth in Section 13. The cleaning and chlorination of potable watertanks and system shall be in accordance with Regulatory Requirements. At time of delivery all tanks shall be empty,clean and free from all foreign material, except those tanks containing clean fuel, lube oil and fresh water.

1.20 SPECIFICATION AND PLAN OWNERSHIP

The Specifications and Contract Plans, which have been developed by the Designer are the Designers property. Noalterations shall be made to any of the above listed Contract documents without the written consent of the Ownerand Designer, except for alterations made according to the provisions of paragraph 1.8 of this Specification. Thereuse of the design, Specifications, and the Contract Plans are subject to the express consent of their respective ownersexcept as follows:

In addition to any Classification Society requirements, the Builder shall provide the Owner with copies of the as-built plans for the Vessel as per paragraph 1.11 of this Specification, which the Owner may use as they see fit.

Any further development of the Specifications by the Owner shall be their property. Likewise, any further developmentof the Construction Plans for this vessel shall be the property of the Builder.

If either the Builder or the Owner provides any other party with all or any part of the design, Plans, or Specifications,they shall require such other party to treat the information contained therein as confidential.


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1.21 OWNER FURNISHED EQUIPMENT (OFE)

All material and equipment furnished by the Owner shall be to the extent as listed in Section 18.

1.22 CONSTRUCTION PORTFOLIO

A booklet of pertinent documentation shall be compiled by the Builder, reviewed and approved by the ClassificationSociety (through Builder) and presented to the Owner upon delivery of the Vessel or as soon as possible thereafter. Asample booklet shall be prepared and submitted to the Owner along with a procedure for obtaining the documentationwithin ninety days of Contract date.

The booklet shall contain the following:

a) Key plans showing locations and grades of steel material.

b) List of piping and fitting materials for all applications.

c) List of structural drawings.

d) Welding procedures, specifications for all materials, and procedure qualification records.

e) Non-Destructive Testing (NDT) Plan.

f) NDT record of Vessel during construction.g) Recommendation for repair procedures.

h) Mill certificates on all high strength and special application materials with a record of where allsuch identified materials are to be found in the completed Vessel.

i) Full certification for all BFE equipment.

j) Comprehensive list of all pad eyes and their capacities.

Those items of special steel, piping and fittings included in lists shall include trade names, ASTM (or equivalent)specifications, chemical composition, and physical properties, as well as any pertinent data, modifications, etc., that may

be required when ordering replacement parts or materials.

1.22 NOISE AND VIBRATION

Noise levels to comply with criteria as noted below.

Area dB (A) IMO dB (A) ABSWorkspaces

Machinery spaces (continuously manned)** 90 85Machinery spaces (not continuously manned)** 110 108Machinery control rooms 75 65Workshops 85 80

Non-specified work spaces ** 90 80 Navigation spaces

Navigating bridge and chartrooms 65 55Listening post, including navigating bridges*wings and windows

70 55

Radio rooms (with radio eq. operating but not producing audio signals)

60 55

Radar rooms 65 55Accommodation spaces

Cabins and hospitals 60 50Mess rooms 65 55Recreation rooms 65 60Open recreation areas 75 65Offices 65 60


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Services spaces Galley, without food processing equipment 75 70Serveries and pantries 75 70

Normally unoccupied spaces

Spaces not specified ** 90 108

*Reference is made to Resolution A. 343(IX) which also applies.**Ear protectors should be worn when the noise level is above 85 dB (A)

The vibration levels shall comply with ISO/ABS


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FRIEDE & GOLDMAN, LTD.BASED ON JOB #7811 REV. 0

TABLE OF CONTENTS

SECTION 2.0 - STEEL STRUCTURE .......................................................................................................... 2

2.1 CONSTRUCTION ......................................................................................................................... 2

2.2 HULL ............................................................................................................................................. 2

2.3 LEGS .............................................................................................................................................. 2

2.4 LEG GUIDE STRUCTURE ........................................................................................................... 2

2.5 SUPERSTRUCTURES AND HELIPORT .................................................................................... 3

2.6 DRILL FLOOR, SUBSTRUCTURE, AND CANTILEVER ......................................................... 4

2.7 BURNER BOOMS ......................................................................................................................... 6

2.8 BUILT-IN TANKS......................................................................................................................... 6

2.9 SEA CHEST ................................................................................................................................... 6

2.10 WELDING ..................................................................................................................................... 7

2.11 FOUNDATIONS ............................................................................................................................ 8

2.12 DERRICK....................................................................................................................................... 8


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SECTION 2.0 - STEEL STRUCTURE

2.1 CONSTRUCTION

Workmanship shall be of good marine standard and meet the requirements of the Classification Society, theRegulatory Bodies and the Builder's standards. Plating shall be erected reasonably fair. Beams, frames, girders,etc., shall be installed fair and in proper alignment in accordance with regulatory and classification society standardslisted in Section 1. Bulkheads and decks shall be erected reasonably fair to provide a good appearance and preventthe collection of water. Fairness shall generally be in accordance with regulatory and classification societystandards listed in Section 1. Openings and doubler and insert plates shall have well-rounded corners with ampleradii. During the outfitting of the Vessel, care shall be taken to keep the size and number of openings made in thestructure for the passage of piping, wiring, ventilation ducts, etc., to a minimum. Where openings are required, theyshall be carefully made, and the openings structurally reinforced where required according to construction standardsdeveloped by the Builder and approved by the Owner and Classification Society. Openings, permanent ortemporary, in the primary structure shall be approved by the Owner and the Classification Society.

2.2 HULL

The hull material shall be as shown on the Contract Plans and selected for a Minimum Design Temperature (MDT)of -20 C.

Each tank required by the Classification Society to be hydrostatically tested shall be individually tested by anapproved procedure (air and water) and proven tight.

The configuration of the hull shall be constructed with a flat bottom profile. There shall be no bilge radius on thehull. All connections between the side shell and bottom plate will be by fabricated plate intersection (squarecorners). Adequate structure and/or reinforcement shall be provided in way of chocks, towing pads, and recessedstrongboxes along the transom for dry transport sea fastening, etc., as required. The stern strong boxes, allcombined, shall be designed to react a transverse load of 7,000 mt. and a longitudinal load of 5,000 mt.

All structure shall be designed to be within the normal Classification Society and Regulatory Body stress levels, butin any event shall not have scantlings less than indicated on the Contract Plans, except where specifically approved

by the Owner and Designer.

Deck structure shall be designed for the deck loading specified in these Specifications and as shown on the ContractPlans. Concentrated loads such as foundations, depending on the framing method used, may require changes in the

basic scantlings, in which case the changes shall be considered as a development of the design and not an extra.

The crane foundation locations are shown on the Contract Plans. The Builder shall provide foundations for thespecific cranes selected by Owner. Crane boom cradle supports with layered timber shall be provided by the Builderfor each of the cranes and a means of securing the booms during transit.

Centerline, port, and starboard main deck pipe rack structures will be provided for racking of drill pipe and/orcasing. The details of the pipe racks shall be as shown on the Contract Plans. Easily removable pipe stanchions (withlifting attachments), and sockets shall be provided to subdivide the pipe rack into bays, and a tie-down system shall

be provided for securing tubulars while afloat. All main deck pipe rack areas outside the envelope of the cantilevershall have permanent bulkheads at the forward end.

2.3 LEGS

Legs shall be as defined in the Contract Plans and Section 6 of these Specifications.

2.4 LEG GUIDE STRUCTURE

The leg guide structure shall be constructed as shown on the Contract Plans. The Builder shall align guides in thehull with those of the jack case to insure proper operation of the jacking system. The construction tolerancesconsidered critical are as follows:

Pinion/Rack - The placement of the guides should be such that a contact ratio in excess of one is obtainable at all positions of the chord within the guides or as approved by the Classification Society and Designer.


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The legs must be manufactured within a tolerance that allows free movement of the legs through the guides as positioned to satisfy the pinion/rack alignment described above.

The Builder shall propose a procedure for both installing the jack houses and verifying pinion and guide placementthat is to the satisfaction of the Owner, the Designer and the Classification Society.

2.5 SUPERSTRUCTURES AND HELIPORT

The forward superstructure houses all of the accommodation and shall have size, shape and scantlings as shown onthe Contract Plans. Headers shall be provided below the main deck for carrying the above deck structures loads intothe hull structure.

A truss structure forward of the bow leg supports the helicopter deck and the lifeboat davits below the helideck. Thehelicopter platform shall be designed in accordance with Classification Society and Regulatory Bodies rules for aSikorsky S-92 (gross weight of 12 mt.) , S-61N (gross weight of 9.3 mt) or MI-17 (gross weight of 13.0 mt). Theedges of the deck around the heliport shall be fitted with a 1.52 m wide safety net consisting of chain link type,galvanized or PVC coated, wire fencing supported by a 32 mm galvanized pipe framework. The netting shall besecurely lashed with stainless steel wire to the pipe frame to develop the strength of the netting and eliminateunsightly drooping of the netting (excluding the net across the flats).

The hull shall be reinforced where the helicopter deck and lifeboat davit supports connect into the hull.

The helicopter deck shall be equipped with a landing net suitably tensioned to meet CAP 437, IMO andClassification Society requirements.

The helicopter deck shall be equipped with three equal distant placed exits, one of which exits from the outer edgeof the deck, complete with vertical ladders and safety railings. Each exit is to have an adjacent manually operatedfoam monitor and a storage facility for emergency equipment.

A periphery drain gutter system with at least three 100 mm (4) diameter drain pipe shall be provided. Sufficientnumber of self-draining recessed helicopter tie down pads shall be provided. The helideck is to be completelyliquid tight. The drainage collection manifold shall allow single point collection of fluids into a container or directoverboard discharge.

The helideck height above main deck shall be such that all structure, deck plating, safety netting, life boats, and peripheral walkways and equipment will not dip into the sea under the maximum field move pitch / roll angle of theVessel. This angle shall be to the satisfaction of the Classification Society.

All superstructures shall be hose tested and proven tight as per Regulatory Body requirements.


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2.6 DRILL FLOOR, SUBSTRUCTURE, AND CANTILEVER

The drill floor, substructure and cantilever shall be provided generally as called for on the Contract Plans; however,the final arrangements shall be based on the drilling equipment selected by the Owner. The Builder shall verify allequipment dimensions and local loadings and determine whether or not they are within the allowable loads shownon the Contract Plans. The Builder shall bring to the Owners attention any major discrepancies. The Builder shall

be responsible for monitoring the final weights, details and adequacy of the deck structure for drill floor /

substructure / cantilever.

The drill floor shall be moved athwartship on the substructure using a hydraulically operated lift and roll system andshall be capable of being positioned at any rotary well center location 4.6 m port or starboard of the hull centerline.Guides shall be provided to keep the drill floor properly positioned on the substructure transverse skid rails.Movable clamps shall ride with the drill floor to secure the drill floor to the substructure in any location.

The cantilever shall slide fore and aft on the main deck using a hydraulically operated skidding system. TheCantilever shall be capable of being secured by the skidding system in any position.

The forward cantilever hold down clamp and the stern roller support structure are to be designed and located so as to provide the maximum live drilling loads given in Section 1.5.

The drill floor shall support the following and other BFE or OFE equipment, as listed in Sections 17 and 18 of the

Specification, installed on the drill floor, including but not limited to the following:

ITEM Description

a) Derrick b) Drawworks, including motors and brakes incl. ventilation and cooling.c) Rotary tabled) Setback areae) Drawworks house and Wind Wallsf) Dead line anchorg) Top Drive Systemh) Manifolds (C&K, Cement, Mud, Cement Wash down)

i)

Iron Roughneck j) Offline Iron Roughneckk) Offline Activity Cranel) Hydraulic Power Unitm) Mud Gas Separatorn) Drillers House, including instrumentation and equipment control packageso) Brake Water Cooling Package

p) PLC roomq) BOP Control Panelsr) Air Hoistss) LIR and LER, Local Instrument and Local Electric Roomst) Mouse Holeu) Auxiliary Mouse Holev) Tong Postsw) Derrick Lightingx) Powered Wire Line Reely) Wire Line Measuring Unitz) Choke Manifold Control Panelsaa) Rig Floor Hydraulic Manifold

bb) Compressed Air Receivercc) Diverter Control Panel / Manifold


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dd) Hydraulic Catheadee) Diverter with Hydraulic Ball Valvesff) Secondary Conductor Tensioning Cylindersgg) Workbench, lockers, etc.hh) Casing Stabbing Basket

The drill floor in the areas indicated on the Contract Plans shall be strong enough to withstand the impact of a 27.4m stand of 241.3 mm drill collars (90 ft. stand of 9 drill collars) dropped from a height of 1.0 meter. There shall be

provided impact resistant sub-flooring beneath the drill floor as required withstanding such impact. The setbackarea shall have two (2) 75 mm layer of hardwood decking. This decking is built up in two layers, set apart 90 andlined with bitumen in between the layers of hardwood.

Beneath the drill floor a system of access gratings, ladders, rails, etc., shall be provided for access to brake water-cooling system, air receiver, mud return system, diverter and other equipment. A 6 mm thick drain pan shall be

provided beneath the drawworks and rotary to collect all pollutants and direct them down to the skimmer tank.

The drill floor shall be provided with a system of gutters, drains and deluge system as called for in Section 14.

The drill floor shall be provided with a wind wall, complete with sliding doors, a drawworks shed and a wind wall atthe monkey board level. The Builder shall develop, subject to Owner approval, the structure for these using the

design criteria set forth in the specification to meet the requirements of the Regulatory Bodies. The weight of thesestructures shall be held to a minimum; therefore, the construction need not be similar to that of the superstructure.Top of drawworks house to have minimum slope, design for 0.24 mt./m 2 loading and shall be fitted with hand rails.Composite materials shall be used for wind walls, etc. wherever allowed by the Regulatory Bodies and theClassification Society. Access shall be provided, either by walkways at the aft end of the drill floor or removable

panels on the aft side of the wind walls, to allow a rig mover a clear view to the stern of the Vessel.

There shall be a unitized, enclosed, air-conditioned driller's house installed on the drill floor. The house shall fullyenclose all driller's instrumentation and controls for all the drill floor machinery and systems, pipe handlingsystem(s), and other operational panels and alarms.

There shall be installed in the derrick a pipe racking system that facilitates racking of pipe on the drill floor, a TopDrive drilling system, a TDS parking system, and a casing stabbing basket, including all of the associatedmechanical, electrical, hydraulic, and ventilation systems.

The cantilever substructure shall support the following equipment or as otherwise indicated in Sections 17 and 18,including but not limited to:

a) BOP Handler, Service Bridge Crane and BOP Horizontal Restraint System (HRS) Winches. b) BOP(s)c) BOP test unitd) Primary Conductor Pipe Tensioning Support Cylinders, accumulators and Control System

(CTU)e) Conductor Tensioner Platform (CTP)f) CTP Support Bracketsg) Movable CTP Walkwaysh) Trip and Stripping Tanks and Pumpsi) BOP Carts

j) Scalper Shakersk) Drill floor and All Machineryl) Mud Processing Equipment and Tanksm) Mud Lab and Test Equipmentn) BOP Closing Unit and Bottle Storage Rackso) Cementing Package

p) Not usedq) Skimmer Tank


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r) Electric Equipment Rooms) Centrifuges and Pumpst) Mud Logging Unitu) Hydraulic Power Unit

A system to support and handle the BOPs shall be installed consisting of a 125 Ton Bridge Crane, which travels on

trolley beams running longitudinally beneath the drill floor. Builder shall install four manually operated BOPstabilizer winches (14,000 lb. capacity) and fairleads.

Removable test/assembly stumps for BOP stack(s) shall be installed on provided storage cart(s). The storage cartsshall be movable fore and aft from test/assembly area to staging area, using a hydraulic skidding system. Above theBOP test / assembly area a single 35 mt. Service Bridge Crane with two (2) 17.5 mt. trolleys shall be installed thattravels on trolley beams running transversely across the full width of the storage area.

The BOP closing unit shall be installed under the elevated pipe rack within the forward end of the cantileverstructure main and mezzanine decks. All necessary piping and fittings will be furnished by the Builder to locate fullfunction control panels at the unit, on the drill floor, in the toolpusher's office, and on the main deck.

The third party cementing package with batch mixing plant, liquid additive tanks, etc. shall be installed under thecantilever pipe rack deck within the forward end of the cantilever structure. The installation shall include all service

piping to and discharge or drain piping from the cementation package as well as any instrumentation, electrical orotherwise, control cables, electric power, communication, alarm, lighting, etc. systems. The area surrounding thecementing engine package shall be classed A-60.

A pipe rack structure, approximately 30.5 m long x 18.3 m wide will be provided atop the cantilever beams withtransverse pipe rack beams and removable pinned socket type stanchions.

The details of the pipe rack shall be as shown on the Contract Plans. Easily removable pipe stanchions (with liftingattachments), and sockets shall be provided to subdivide the pipe rack into bays, and a tie-down system shall be

provided for securing tubulars while afloat. Hatches shall be installed in the pipe rack to provide access for theremoval of cuttings.

The elevated pipe rack will be outfitted with a drain system as provided in Section 14.

2.7 BURNER BOOMSSee Section 3.27

2.8 BUILT-IN TANKS

Built-in tanks shall be provided where shown to accommodate fresh water, fuel oil, lube oil, waste oil, base oil,mud, contaminated drains, etc., as required. Mud pits shall be covered and ventilated according to the ContractPlans.

All inner bottom voids, preload, brine and drill water tanks shall be fitted with approved docking plugs. Each plugshall be accessible from inside the tank. The locations of the plugs shall consistently be adjacent to the tank accessladder landing. The design of the plug shall incorporate a cross bar to allow the plug to be struck with a hammer toloosen and remove it. The threaded portion of the plugs shall be generously lubricated with Never-Seize.

Where fittings are required during construction for erecting scaffolding, they shall be designed and arranged so thatthey can be left installed to facilitate support of scaffolding for future repairs, maintenance or inspection.

2.9 SEA CHEST

Sea chests shall be provided with sacrificial anodes, see Section 8.16.3. The shell plating shall have heavy inserts in wayof sea chests to compensate for the openings and all sides of the sea chests shall have a plate thickness equal to the shellthickness. All sea chests shall be fitted with strainer plates of 16 mm stainless steel with 25 mm diameter holes on 38


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mm centers. Strainers shall be attached with 316 stainless steel bolts and nuts so that the latter is flush with the shell.The free area through the strainer shall be at least twice that of the combined cross sectional area of the connections.

Air flushing of the sea chest is to be provided. Valves shall be located as close as possible to the shell. All bolting shall be 316 stainless steel.

Two sea chests to be provided in the bottom plate of the hull. Locations shall be shown on the Contract Drawings.

2.10 WELDING

All welding shall be subject to rigid inspection and approval of the Owner, his authorized representatives and theClassification Society. Builders welding inspectors (direct employees or subcontractors) shall be currentlyqualified as ASNT-TC1A Level II for the NDT processes, which they are performing. All NDT processes are to be

performed according to approved written procedures. All NDT equipment shall have current calibrationcertification where applicable. Builders welding inspectors performing visual inspection shall be currentlyqualified according to the requirements of AWS D1.1 or as required by the Classification Society.

All welds shall be shown on the working drawings using standard industry symbols and call outs. All welding processes, including repair processes, shall be documented by written procedures (WPS). All WPS shall bequalified (PQR) according to AWS, ANSI/ASME, and the Classification Society. All of Builders welders (direct

employees or subcontractors) shall be qualified (WQR) to the qualified welding processes they are using.

All welds shall be 100% visually inspected, and NDT inspected according to industry standards and ClassificationSociety requirements as detailed below.

Industrial radiographic sequences shall be prepared and submitted to the Owner and the Classification Society.Radiographs shall be as per Classification Society requirement. The minimum extent of this inspection shall be asfollows:

Hull structure weldments shall be non-destructively tested in accordance with the requirements ofthe Classification Society and the Regulatory Bodies.

All welds at the attachment of jacks, chock supports, cantilever hold down clamps, supportingstructure, and connecting primary bulkheads shall be tested 100 % by Radiographic Testing (RT)

or Ultrasonic Testing (UT) as accepted by the Owner, the Classification Society and theRegulatory Bodies.

All welds in the crane support structures and their attachments to the hull shall be tested 100 % byRT or UT as accepted by the Owner, the Classification Society and the Regulatory Bodies.

Welding inspection of the legs is covered in Section 6 of this specification.

The Owner will be allowed 100 additional RT random shots to be taken at locations as directed inthe hull, substructure, foundations, etc. For each rejected X-ray, two additional X-rays shall be

provided at no additional cost to the Owner.

Should visual inspection show that thickness, surface contour, or appearance of continuity of any strength weld is not inaccordance with the applicable approved working drawing or should radiographic, magnetic particle or ultrasonic

examination and testing of any weld indicate defect of an unacceptable nature as determined by standards of theClassification Society, the weld shall be carefully cut out over the full extent of the defect, re-welded, and the quality ofthe final re-weld determined by similar methods of inspection at Builder's expense.

All welds shall have adequate penetration and shall be reasonably free from undercutting. A maximum of 3 mmreinforcement will be allowed on butt welds.

Intermittent welding of scantlings is not allowed. The welding of all beams, brackets, stiffeners, etc., above or belowdeck shall be continuously welded on both sides of the member to seal the faying surfaces and prevent corrosion.


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2.11 FOUNDATIONS

General

It shall explicitly be the responsibility of the Builder to design and provide all needed foundations plus under decksupport for proper distribution of loads into the structure for all machinery, equipment, structures and outfitting as shownon the Drawings or listed in Specifications, whether OFE or BFE. The Builder shall submit plans of all equipment

foundations to Owner and the Classification Society for their approval and comments, before commencing construction.

Layouts of the individual pieces of equipment shown on the Contract Plans are meant for general guidance and aresubject to relocation by the Owner and the Builder to suit local conditions and/or operational requirements. Relocationof equipment by the Builder must be approved by the Owner. Relocation of equipment by the Owner, which causes animpact on cost or schedule, must be negotiated with the Builder. Minor relocation of individual equipment afterdiscussion and before construction should not be considered as causing impact on cost and schedule.

Vibration and Deflections

Special attention shall be given to providing sufficient rigidity of the foundation support structure, and to the cushioningand restraint of piping, machinery or equipment, so as to minimize or otherwise control vibrations and consequenttransmission of noise and/or vibrations through the Vessel's structure to acceptable levels. Particular attention shall also

be paid to limiting any relative deflections of foundations to insure positive alignments are maintained on machinery andto avoid any damaging effects on bearings, etc.

Foundation Design

Foundations shall be designed to act as complete supports, against all loading conditions, independent of the casing,frame bed plate, or other part of the supported panels, equipment, or machinery and in accordance with manufacturersrecommendations. Equipment furnished on oil field skids may be mounted on deck pads with under deck chocking atstructural intersection with the specific approval of the Owner. Foundations shall be designed to preclude developmentof thermal stresses in either the foundation or in supported heat producing equipment.

Foundations for equipment shall be designed for a combined static and dynamic load of 1.5 G vertical and 0.5 Ghorizontal for roll and pitch.

Changes to Owner Furnished Equipment

Where Contract Plans show details of some foundations, it is to be understood that they are indicated for Builder'sguidance at bid stage as to the general principles of design and to show the minimum standard of strength expected foran assumed typical make of the equipment involved. The actual foundations in all details to suit the final selectedequipment in each case, shall remain within the

Documents

7876 Construction Specification Rev G (Without Section 18)_8.27.2013