pierre-armand thomas technip · lower cost of engineering. z. standard details & components...
TRANSCRIPT
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PRESENTATION OF TWO PLATFORMS:The TPG500 For shallow waters,The SPAR for Deepwater.
Pierre-Armand ThomasTechnip
May 25th, 2005
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RANGE OF PLATFORMS FOR SHALLOW WATERS
TPG 500TPG 500 UNIDECK UNIDECK -- FLOATOVERFLOATOVER
FLOATING PRODUCTIONFLOATING PRODUCTIONMOSSMOSS
CONCEPTCONCEPT
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TPG500 - KEY FEATURES
Proprietary self-installing platformField proven solutionFulfils fixed platform regulationsFixed but removable and reusable platformLow abandonment costDesigned with standard componentsUp to 500 feet (150m) water depth
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TPG500 - LOW OFFSHORE COSTS
Fully equipped & commissioned onshore Minimal offshore HUC phase - no requirement for HLV nor flotelShorter weather window compared with aconventional platform installationLeg lowering, hull elevationand final locking within 24 hoursInstallation fully independentfrom tideFull reversibility at all stages
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TPG 500 - SIZE
BP HARDING & La Grande Arche (Paris)
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MAIN COST & SCHEDULE DRIVERS
Lower cost of engineeringStandard details & components
Repetitive procurement process
Frame agreements Proprietary items
Simple hull constructionMass production of leg nodes« Manufacturing process » for leg assemblyHull flat plate constructionMinimum equipment in hullLarge choice of fab yards
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TPG 500 PLATFORM – CONSTRUCTION ADVANTAGES
Construction on a quay or in a dry dockLarge choice of yards world-wideConventional offshore fabrication activitiesLow cost flat plate construction of the hullLeg components free issued to yardLarge flat deck - min. equipment stacking
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LEGS
LEG TO HULL INTERFACE
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JACKING SYSTEM
Flexible design to match theelevated weight - selectablenumber of pinions
Typical # of pinions
Harding: 90
Elgin: 108
Shah Deniz: 72
Hydraulic driven variable speed system
Typical jacking speed is 0,45 m /minute
Jack Cases 7 Teeth Pinions
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JACKING SYSTEM
Jack Cases
Jack cases with gearboxes andhydraulic motorsinstalled
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LOCKING SYSTEM
Fully automatic procedure for locking and unlocking
Optimised distribution of loadson the rack teeth
8300 tonne capacity per chord
Rack chock with lever arms
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LEGS
TYPICAL LEG
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LEGS & NODES
Forged nodes technology using hot forming and heat treatment during the forging process
Ensures 30 year fatigue life
Reduced horizontal load on chords
Repetitive Process
Proprietary Rights
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FOUNDATION OPTIONS
Piled (Elgin)or elevated
Integrated Oil Storage For poor soil conditions
Large Suction Skirt Foundation(Shah Deniz)
Oil Storage (Harding) Traditional spud tanks
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EXECUTION
Fabrication in dry dock Fabrication on quay Hook-up & com quay side
Dry tow to site Alternatively wet tow to site Self elevation at site
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EXECUTION OPTION
Dry or wet tow from fab to integration yard
Moor quay side fortopside installation Topside Integration - 1
Topside Integration - 2 Topside Integration - 3 Topside integration& hull completion
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LEG ERECTION INSHORE, BUT IN DEEPWATER
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TPG 500: ONE CONCEPT - A RANGE OF APPLICATIONS
Drilling, Production Utilities and Quarters (DPUQ) platformDrilling, Production Utilities and Quarters (DPUQ) platformConcrete Gravity Storage Base tank of 500,000 bblConcrete Gravity Storage Base tank of 500,000 bbl109 metres of water depth in the North Sea harsh environment (U109 metres of water depth in the North Sea harsh environment (UK)K)
Production, Utilities and Quarters (PUQ) platformProduction, Utilities and Quarters (PUQ) platformHP / HT gas condensate field (830 bar) requiring HHP / HT gas condensate field (830 bar) requiring H22S removalS removalSelfSelf--piled foundationspiled foundations92 metres of water depth in the North Sea harsh environment (UK92 metres of water depth in the North Sea harsh environment (UK))
BP HARDING (Completion 1996)BP HARDING (Completion 1996)
ELF Exploration UK ELGIN & FRANKLIN (Completion 2000)ELF Exploration UK ELGIN & FRANKLIN (Completion 2000)
BP SHAH DENIZ (Completion Scheduled 2005)BP SHAH DENIZ (Completion Scheduled 2005)Drilling, Production, Utilities and Quarters (PDUQ) platformDrilling, Production, Utilities and Quarters (PDUQ) platformHull built in selfHull built in self--buoyant strips and suction can foundationsbuoyant strips and suction can foundationsHP gas field (750 bar) HP gas field (750 bar) 101 metres of water depth in the Caspian Sea (Azerbaijan)101 metres of water depth in the Caspian Sea (Azerbaijan)
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TPG 500 REFERENCES: SHAH DENIZ
Client: BP Exploration
Location: Caspian Sea, Azerbaijan
Date: 2001- 2006
Facilities: Production, Drilling, Utilities & Quarters Platform
Scope: Conceptual, Basic and FEED Engineering and Procurement servicesEngineering and Supply of Proprietary items
SHAH DENIZ Field - TPG 500SHAH DENIZ Field - TPG 500
Key data:101 m water depth20,000 tonne topsides with drilling facilitiesSuction can foundations900 mmscfd gas
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SHAH DENIZ
Platform weight summaryPlatform weight summary
TOPSIDES 9,300 tonnes (incl 3,200 tonnes of drilling equipment)
HULL 11,000 tonnes
LEGS & RISERS 5,600 tonnes
FOUNDATIONS 3,300 tonnes
TOTAL 29,200 tonnes
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SITE PRESENTATION
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SITE PRESENTATION
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SITE PRESENTATION
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SHAH DENIZ – Paris/Singapore/Baku
TPG Strip Transportation Routefrom Singapore to
Baku, Azerbaijan
TPG Strip Load
out at KPF Yardin Singapore
Strip transport onSemi-Submersible
Vessel
Tow across Caspian Seafrom Astrakhan to Baku
Canal Tow fromRostov to Astrakhan
Strip float offOperation nearKerch, Ukraine
Sea Tow acrossSea of Azov to Rostov
TRANSPORTATIONtest
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PLATFORM PRESENTATION
MAIN CHALLENGES FOUNDATIONS STRIPS DRILLING OF WELL (limit of technology, reservoir, geology) PROCESS (pressure)
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PLATFORM EVOLUTION – IMPACT OF WEIGHT INCREASE ON DESIGN
CONCEPTUAL DETAILLEG SIZE (triangular) 16.00 m 17.00 m (distance between chord)
CONCEPTUAL ELEVATION RECENT DETAILED ELEVATION
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SHAH DENIZ
Platform Elevation -Looking East
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OVERVIEW
PLATFORM TOP LEVEL PLAN VIEW
Strip 0 : ProcessStrip 1 : Wellbay / D.E.S.Strip 2 : DrillingStrip 3 : Utilities
Main Power GenerationStrip 4 : Living Quarters
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SHAH DENIZ
Well-bay arrangement Xmas treeMezzanine
deck
Main flowline
DualFlowlinejumper
Pre-installedFlowline
To spare slotWell slots on 4.8m x 3.0m
centres
West faceHull openstructure
11k psitree
TensioningAccumulator
bottles
Hull double bottom
Spareslots
ActiveTensioning
system15k psi
Wellhead
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SHAH DENIZDrilling facilities - specification
Derrick1,500,000 lbs capacity510 t setback capacity60,000 ftlbs @ 120 rpm topdrive3,000 hp drawworks
Mud System3 x 2,200 hp mud pumps, 7500psi4000bbls tank capacity4 x high performance shale shakersProvision for OBM cuttings transfer system
18 ¾” 15,000 psi BOPWell Intervention
Rig Assisted HWU for perforatingWireline through derrick or simultaneously From main deck
Future ProvisionsCentrifugesInstallation of CTU21 ¼ 5m BOP and/or diverter
Prefabricated in Norway (NYMO)Assembly in Baku
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SHAH DENIZ
Foundation options reviewedspud canspre-installed piled structuresuction cans
Suction can design assurance obtainedNGI, Prof Houlsby
Solution adopteddesign for 600mm settlementprovide re-jacking contingencyimpacts wellbay, trees, tensionersflowlines & export risers
Offshore Installation of Suction can
Suction skirt foundation
C
8m
30m
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EXECUTION PLAN
2801 t88m x 16m
3182 t88m x 16m
2814 t71m x 16m
2278 t53m x 16m
HULLPREFABRICATED AS 4 MAIN STRIP IN SINGAPOREASSEMBLY IN BAKU
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STRIPS IN SINGAPORE
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STRIPS IN SINGAPORE
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TRANSPORT OF STRIPS
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LEG ASSEMBLY IN BAKU
LEG SECTIONS ASSEMBLY AND SKIRT-CANS FABRICATION
RACK TO RACK WELDING
WINDOW WELDING
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LEG ASSEMBLY IN BAKU
LEG SECTIONS ASSEMBLY AND SKIRT-CANS FABRICATION
X BRACING PREPARATION
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LEG ASSEMBLY IN BAKU
LEG SECTIONS ASSEMBLY AND SKIRT-CANS FABRICATION
LEG ASSEMBLY
LEG SECTION JIG (Leg sections assembly 50 m length)
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LEG ASSEMBLY IN BAKU
LEG SECTIONS ASSEMBLY AND SKIRT-CANS FABRICATION
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LEG ASSEMBLY IN BAKU
LEG SECTIONS ASSEMBLY AND SKIRT-CANS FABRICATION
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PLATFORM INTEGRATION IN BAKU
PLATFORM INTEGRATION / SEQUENCING
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PLATFORM INTEGRATION IN BAKU
PLATFORM INTEGRATION / SEQUENCING
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PLATFORM INTEGRATION IN BAKU
PLATFORM INTEGRATION / SEQUENCING
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FABRICATION YARDS
JACKING/LOCKINGFABRICATED IN FRANCE (CMD/REXROTH)
ASSEMBLY OF LOCKING IN SINGAPORE
ASSEMBLY OF JACKING IN BAKU
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RANGE OF PLATFORMS FOR DEEPWATER
DPS-2000Spar et Deep Blue
EDP
FPSO
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SPAR FUNCTIONS
Drilling
Workover
Production
Wellhead
Oil storage and offloading
Any combination of the above
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SPAR CAPABILITIES
Water depth 1,000 to 10,000 ft
Well slots 0 to 40
Oil throughput to 400 Mbopd
Gas throughput to 750 MMscfd
Topside payloads 1,500 to 45,000 s. tons
Hull diameters 20 to 200 ft
Hull drafts 280 to 800 ft
Storage 5 to 10 days production
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SPAR ADVANTAGES
Dry TreesReduced drilling time (optimized to operators program)Reduced drilling costsWorkovers
Proven Execution Model
Flexibility
Decoupled system
Unconditional Stability
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SPAR PROGRESSION
Proprietary
Item
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SPAR AT FABRICATION YARD IN FINLAND
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SPAR RAOs
RAO comparison - Surge
0.0000.2000.4000.6000.8001.0001.2001.4001.6001.8002.000
0 5 10 15 20 25 30 35
Period (sec)
Am
plitu
de (m
/m)
Mltsim
IMD_OEB
RAO comparison - Heave
0.000
0.500
1.000
1.500
2.000
2.500
3.000
0 5 10 15 20 25 30 35
Period (sec)
Am
plitu
de (m
/m)
Mltsim
IMD_OEB
RAO comparison - Pitch
0.000
0.050
0.100
0.150
0.200
0.250
0 5 10 15 20 25 30 35
Period (sec)
Am
plitu
de (m
/m)
Mltsim
IMD_OEB
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COMPARISON OF PLATFORM MOTIONS
100 Year Storm
0
1
2
3
4
5
6
7
8
9
Max Heave, ft. Max Pitch, deg Deck Accel., gx10 Pitch RMS, deg
Truss Spar (500 ft Draft)
Cell Spar (435 ft)
Extendable Draft Platform (246 ft.)
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TAUT CATENARY MOORING
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DRILLING OPTIONS
Pre-Drill Offset Drill Platform Drill
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OFFSET DRILLING
DB-50 NEPTUNE SPAR MODU
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PLATFORM-BASED MOORING EQUIPMENT
Winching equipmentRotary winches (wire)Linear winches (wire)Chain windlasses or capstansChain jacks or devil’s claws
FairleadsRotary-typeBending shoe type
StoppersPassiveActive
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MOORING/INSTALLATION
Mooring System (Typical for Technip Spars)
Mooring Arrangement:− 3 x 3 grouped legs
(Boomvang, Nansen, Gunnison, Horn Mountain)
− 3 x 4 grouped legs− 4 x 3 groped legs (Diana)− Mixture of 3 and 4 grouped
(Mad Dog – 11, Genesis - 14)− 4 x 4 grouped legs (Holstein)
Mooring Size:− Typical: 5 ¾’’ (146 mm) dia.
R4 studless chain, 5’’ (127 m) dia. wire
− Max. 6 ¾’’ (171 mm) dia. R4 studless chain, 5 ¾’’ (147.5 mm) wire
− Max. 10 ¼’’ (260 mm) dia. polyester
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MOORING/INSTALLATION
On-vessel Mooring / 2Chain jacks:− Hydralic, 1 air-cooled HPU - less than
200 HP − Pulling capacity abt. 500 tons− Stopper capacity same as chain MBL− Turndown sheave − ‘’Removable’’ chain jack system
possible
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MOORING/INSTALLATION
Anchor PointBase case assumption is suction anchor:− Diana (21 ft dia. X 105 ft, 290 stons)− Horn Mountain 918 ft x 94 & 91 ft, 200
stons − Holstein (18 ft dia. 126 ft, 290 stons)− Mad Dog (18 ft x diff. lengths, 25 ft dia. x
diff. lengths, up to 250 stons)− Red Hawk (18 ft dia. X 78 ft)
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MOORING/INSTALLATION – CONCLUSIONS
Conclusions
Mooring technology exists today to moor in 2400 meters water depth
Several enhancement to existingtechnology can be still studied to make moorings more cost effective
Polyester and wire options are bothfeasible
Lowering and installation tools andprocedures exist today to safely andsuccessfully install the moorings in 2400 meters water depth
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DECK INSTALLATION METHODS
FloatoverHeavy Lift
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EXAMPLES : PULL TUBE HULL EQUIPMENT
Kerr McGee Boomvang & NansenPre-Installed Pull Tubes
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EXAMPLES : PORCH – SCR INTERFACE
Porch interface suitable for FlexJoint or Taper Stress Joint
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SPAR DRY TREES RISERS TENSIONERS
Hydro pneumatic Hydro pneumatic tensionerstensioners
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RISER BENEFITS
Risers shielded from highest currents
Risers shielded from wave forces
Minimal wave frequency motions reduce dynamic excitation of riser to almost zero
Low heave
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DRY TREE RISERS
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Spar Top Tension Riser System – Air Cans
Guide
Cans
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TYPICAL DRY TREE PRODUCTION RISER SYSTEM
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TENSIONER SUPPORTED VERTICAL RISERS– UNDER CONSTRUCTION
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TOPSIDE FLEXIBLE JUMPERS
Design DriversFluid Properties− Pressure− Temperature− Composition
Stroke Motion− MBR− Clashing with Structure− Tension / Bending− Fatigue
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KEEL JOINTS
14.00" I.D.
15.00" O.D.
30.0'
45.70"
43.03"
51.0" I.D.
Classic Spar9 5/8" Production Riser
Retrievable Keel Joint Sleeve
Fixed Stem Ball Centralizer
Lower Truss Guide
Truss Spar
Keel Joint Sleeve 9 5/8" Production Riser
30.0'
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Examples : Porch Hang-off Locations
ExxonMobil DianaHard Tank
KMG GunnisonSoft Tank
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Hull Piping & SCR Pull-in Equipment
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TRUSS SPAR, CELL SPAR AND EDP
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WHY A TRUSS SPAR?
More optimal structureReplace high weight midsection with more efficient truss structure
Higher damping allows reduction of draftSingle piece fabrication and transport brings cost, schedule advantages
Extra wellbay real estate is cheaper than with a classic spar
Reduction of drag loads in current-dominated areas allows reduction of mooring component sizes, costs
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NANSEN
Water Depth - 3,600 ft
Diameter - 90 ft
Draft - 493 ft
Topsides Payload - 7,700 tonnes
Hull Steel Weight - 10,700 tonnes
TTR Production Risers - 9 slots
Workover/offset drilling
Export - SCRs
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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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HOLSTEIN HARD TANK
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HULL TRANSPORT
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CELL SPAR
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BP HOLSTEIN DRILLING AND PRODUCTION SPAR
TOPSIDESSeachestUtilities to HullOverboard DischargesMaterial HandlingHull-to-Deck ConnectionSpar Deck LayoutLiquid Storage in Hull TanksWeight and C.G.Sail AreaDisposal Caisson
BP HIGH VALUECOMMODITYMooring WireMooring Chain
DRILLING SYSTEMSSail AreaDrill Package Transit Speed
MARDI GRASTRANSPORTATIONSYSTEMExport Riser Pipe in HullRiser Guide Pipe in HullRiser PorchSCR Chain Jack PlatformInstallation AidsTesting
HOLSTEININSTALLATION
TEAMWeightsTowout
Upending AnalysisHull-to-Deck Connection
Setting of DecksInstallation Aids
WELL SYSTEMSFuture FlowlinesUmbilicalsWell Bay ArrangementRiser LoadsRiser StrokeCenter Well SizeNumber of WellsPRT Support Frame LoadsSize of SlotsVessel Motions
GEOTECHNICALSoils Data (For Mooring)Geohazards (For Mooring)
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WHY A CELL SPAR
Less Expensive to BuildSimple Design - Automated DesignStandard Design - DuplicationAutomated Fabrication− Machine Rolled Cells (Cans)− Submerged Arc Welding
Schedule IncentivesReduced Engineering Effort & TimeFast Hull FabricationStandard Topsides Modules− Do Not Optimize− Lease Existing Equipment
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CELL SPAR
RED HAWK
THIS IS THE FIRST APPLICATION OF
A CELL SPAR(2004)
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Extendable Draft Platform (EDP) pour forage et/ou production et/ou opérations sur puits existants
Tous les systèmes de la plate-forme sont testés à terre, travauxde démarrage en mer réduits au minimum
Convient pour de grosses exploitations, en eaux trèsprofondes et un nombre important de puits
Composé de :Pont de type barge Installations de traitementsituées sur le pontJambes (buoyant column + truss)Ponton (amortisseur de pilonnement)
Remorquage en mer
En opération
EXTENDABLE DRAFT PLATFORM (EDP)