ATMA 2006
Tous droits de reproduction réservés - ATMA 2006
HISTORIQUE ET EVOLUTION DES PLATES-FORMES AVEC TETES DE PUITS
EN SURFACE (SPAR?…) LES TENDANCES POUR LE FUTUR
Partie 1
Pierre-Armand THOMAS TECHNIP – Division Offshore - Paris (France)
Diapositives de la présentation du mémoire
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HISTORIQUE ET EVOLUTION DES PLATES-FORMES AVEC TETES DE PUITS EN SURFACE (SPAR… )Les tendances pour le futur
Pierre-Armand ThomasTechnip
13 Juin 2006
Tous droits de reproduction réservés – ATMA 2006
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CONTENTS
PRESENTATION OF SPAR
PRESENTATION OF EXTENDABLE DRAFT PLATFORM
DEEPWATER PRODUCTS – SPECIAL STRUCTURE EQUIPMENTS
FUTURE EVOLUTION AND OTHER ENVIRONMENTSOTHER ENVIRONMENTSPRESENTATION OF EDP LATEST DEVELOPMENTS
EDP CASE STUDYDESIGN OF STRUCTURE
COMPARATIVE ANALYSIS OF DIFFERENT DOMAINS OF APPLICATIONRESEARCH & DEVELOPMENT PROGRAMME
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DEEPWATER PRODUCTS
SPAR
Tous droits de reproduction réservés – ATMA 2006
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Proprietary
Item
Spar progression
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From Classic Spar to Truss and Cell Spar
Significant improvements in many domains :Risers suspension,Mooring lines,VIV approach,Top tension risers.
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Ring section assembly at yard assembling rails
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Barge Harry at the end of assembly rails
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Evolution of construction model
Dedicated investment to improve model delivery
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Chevron Tahiti Spar Dimensions & Weights
BasicsWater Depth 4,000 ftProduction and Quarters only, all subsea wellsTopsides design throughput 125 MBPOD SITWHP 12,300 psig
Spar dimensionsDiameter 128 ftDraft 500 ftFreeboard 55 ftCenterwell 50x50 ftHard Tank Length 216 ft
Mooring13 lines ; 6.2” chain, 10.2” polyester
Risers4 production, 2 test, 2 water injectors; all in pull-tubesOil and gas export risers w/ flex-joints
WeightsTopside Weight 21,000 tonsFixed Ballast 23,700 tonsVertical Mooring Load 3,800 tons
Environment100 yr Hurricane; Hs=39 ft Tp=12.7-15.3 sec, Wind=73.5 kt
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Tahiti First’sLargest Single-Piece Spar Dry Transportation360 degrees strake coverage requires portion of strakes to be installed offshoreFirst spar with utility/access shaft and dedicated pump room
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Holstein hard tank
LARGEST EVER BUILT
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RED HAWK
Both the hull and topsides wereinstalled in March 2004.(first gas in July 2004)
THIS WAS THE FIRST APPLICATION OF
A CELL SPAR
Cell Spar
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Cell Spar InstallationUpend Spar at
Integration Site Install Fixed Ballast
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Hull unconditionally stable28 separate buoyancy compartmentsCenter of buoyancy above center of weightSimple ballast systemOperator cannot sink vesselNo down flooding pointsMooring line failure can not capsize vessel
Other hulls less safeFewer compartmentsHappier upside downComplicated ballast control system
Cell spar safest floater
RESISTANCE TO HURRICANESTO BE TAKEN INTO ACCOUNT
SERIOUSLY
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Spar model for installation request
Towing of Spar hull horizontallyUpending at deep site > 200 m water depthTopsides installation by heavy crane for floatoverHook-up and commissioning offshore
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CONTENTS
PRESENTATION OF SPAR
PRESENTATION OF EXTENDABLE DRAFT PLATFORM
DEEPWATER PRODUCTS – SPECIAL STRUCTURE EQUIPMENTS
FUTURE EVOLUTION AND OTHER ENVIRONMENTSOTHER ENVIRONMENTSPRESENTATION OF EDP LATEST DEVELOPMENTS
EDP CASE STUDYDESIGN OF STRUCTURE
COMPARATIVE ANALYSIS OF DIFFERENT DOMAINS OF APPLICATIONRESEARCH & DEVELOPMENT PROGRAMME
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DEEPWATER PRODUCTS
EDP
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Extendable Draft Platform (EDP) for production drilling / workover
Full integration onshore -minimum offshore HUC / no flotel
Suitable for large payloads, deep water &high well counts
Composed of:Barge-type Deck Topside facilities on top of deckLegs (buoyant column + truss)Pontoon (heave plate)
Tow to field
Operation
Extendable Draft Platform (EDP)
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EDP installation
Reminder of Spar installation requirements :
The EDP concept is offering a solution that mitigate these issues
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Model Test performed with GOM conditions - 1 year winter storm
EDP Model test/completion status
Tests have proven as good motion responses as Spar
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CONTENTS
PRESENTATION OF SPAR
PRESENTATION OF EXTENDABLE DRAFT PLATFORM
DEEPWATER PRODUCTS – SPECIAL STRUCTURE EQUIPMENTS
FUTURE EVOLUTION AND OTHER ENVIRONMENTSOTHER ENVIRONMENTSPRESENTATION OF EDP LATEST DEVELOPMENTS
EDP CASE STUDYDESIGN OF STRUCTURE
COMPARATIVE ANALYSIS OF DIFFERENT DOMAINS OF APPLICATIONRESEARCH & DEVELOPMENT PROGRAMME
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Special structure equipment
Beside the hull design, the « ancillary equipments » capture a lot of attention to provide the best service for SCR behaviour and integrity and the best handling of surface trees
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Winching equipmentRotary winches (wire)Linear winches (wire)Chain windlasses or capstansChain jacks or devil’s claws
FairleadsRotary-typeBending shoe type
StoppersPassiveActive
Platform-based mooring equipment
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Kerr McGee Boomvang & NansenPre-Installed Pull Tubes
Examples : Pull tube hull equipment
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Porch interface suitable for FlexJoint or Taper Stress JointExamples : porch – SCR interface
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Hydro pneumatic Hydro pneumatic tensionerstensioners
EDP dry trees risers tensioners
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Truss Spars
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30000
35000
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Topsides Weight - S tons
Wei
ght -
S to
ns
Small
Medium
Big Dry Trees
Big Wet Trees
B / Nansen
Gunnison
Horn Mountain
Mad Dog
Holstein
Hull weight comparison
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Truss and Cell Spars
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Topsides Weight - S tons
Wei
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S to
ns
SmallMediumBig Dry TreesBig Wet Trees6 Cell Wet Trees8 Cell Wet Trees8 Cell Dry TreesRed HawkB / NansenGunnisonHorn MountainMad DogHolstein
Hull weight comparison
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Truss / Cell Spars and EDP
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Topsides Weight - S tons
Wei
ght -
S to
ns
SmallMediumBig Dry TreesBig Wet Trees6 Cell Wet Trees8 Cell Wet Trees8 Cell Dry TreesRed HawkB / NansenGunnisonHorn MountainMad DogHolsteinEDP - Sizing toolEDP vs Semi Study
Hull Weight comparison
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Kikeh Spar Dimensions & Weights
Spar dimensionsDiameter 106 ftDraft 430 ftFreeboard 35 ftCenterwell 55x55 ftHard Tank Length 220 ft
Mooring10 Lines; 142mm Chain, 108mm Spiral Strand
Risers24 Prod + 1 Drilling TTR w/Riser Hydraulic TensionersTensioner Max Stroke 21 ft
WeightsTopside Weight (w/workover) 6600 tMax Well System Load 4200 t (w/ 24 TTRs) Fixed Ballast 2900 tVertical Mooring Load 2200 t
Environment100 yr Typhoon; Hs=20.7ft Tp=16sec, Wind=30kt
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Kikeh First’sFirst SPAR Outside GoM
Hull, Topsides Constructed in MalaysiaTOF Supervision & Know-How
Tender Assisted Drilling
Direct Tensioner System
Topside Floatover installation
Global Project ExecutionKuala Lumpur / Pori / Houston / Perth / Paris
Topside FloatoverTopside Floatover
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Kikeh Hull Fabrication at MMHE (Malaysia)
Hull Fabrication
Topside Fabrication MMHE April 14th 2006
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CONTENTS
PRESENTATION OF SPAR
PRESENTATION OF EXTENDABLE DRAFT PLATFORM
DEEPWATER PRODUCTS – SPECIAL STRUCTURE EQUIPMENTS
FUTURE EVOLUTION AND OTHER ENVIRONMENTSOTHER ENVIRONMENTSPRESENTATION OF EDP LATEST DEVELOPMENTS
EDP CASE STUDYDESIGN OF STRUCTURE
COMPARATIVE ANALYSIS OF DIFFERENT DOMAINS OF APPLICATIONRESEARCH & DEVELOPMENT PROGRAMME
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Disconnectable Spar for Ice Regions
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Bottom section disconnected from Upper Hull
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CONTENTS
PRESENTATION OF SPAR
PRESENTATION OF EXTENDABLE DRAFT PLATFORM
DEEPWATER PRODUCTS – SPECIAL STRUCTURE EQUIPMENTS
FUTURE EVOLUTION AND OTHER ENVIRONMENTSOTHER ENVIRONMENTSPRESENTATION OF EDP LATEST DEVELOPMENTS
EDP CASE STUDYDESIGN OF STRUCTURE
COMPARATIVE ANALYSIS OF DIFFERENT DOMAINS OF APPLICATIONRESEARCH & DEVELOPMENT PROGRAMME
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Review of EDP Generation (1&2)
First Generation1995 start developing TPG 3300
Second Generation
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