Deep water equipment

December2010PresentedByLiFeiyuManager,Technology&BusinessDevelopmentABSGreaterChinaDivisionMODU–Drillships/Semi-sumersibles1DeepwaterBasinsoftheWorldCurrentRegionsFutureRegions“DeepWater”DefinitionofDeepWater0500100015002000250030003500ShallowShallowDeepDeepUltadeepUltadeepWaterDepth,mInternationaldefinitionUSdefinitionInternationaldefinitions•Shallowwater:500m•Deepwater:500mto1,500m•Ultradeepwater:≥≥≥≥1,500mUSdefinitions•Shallowwater:1,000ft(303m)•Deepwater:1000ftto5,000ft(1515m)•Ultradeepwater:≥≥≥≥5,000ftOffshoreOilProductionSource:DouglasWestwoodOffshoreoilv.gasproductionSource:DouglasWestwoodExploration&ProductionSpending•2010E&Pbudgetsup25%over2009Source:TheEnergyReportE&PCapExSurvey•(03/29/2010)MobileOffshoreDrillingUnitsDrillshipSemisubmersible(CSDU)Jackup(SEDU)~85units~225units~500unitsDrillBargeInlandBargeSubmersibleTenderUnit~50units~80units7units~35units7SemisubmersibleDrillingUnitsThe5thGenerationDesign:Friede&GoldmanExDBuilt:2005Water/Drillingdepths:7,500/37,500ftVDL:7,000m/tGlobalSantaFe:GSFDevelopmentDrillerI&IIDesign:SFXpressBuilt:Early2000sWater/Drillingdepths:7,500~8500/35,000ftVDL:6,612s/tTransocean:SedcoExpress,SedcoEnergy,CajunExpressThe5thGenerationDesign:Reading&BatesRBS-8DandRBS-8MBuilt:2000Water/Drillingdepths:8,000~10,000/30,000ftVDL:8,800~10,500s/tTransocean:DeepwaterHorizon,DeepwaterNautilusVariousconvertedunitsDiamondOffshore:OceanBaronessOceanVictory6,500ft/35,000ft6,500mtDiamondOffshore:OceanConfidenceAkerH-3.27,500ft/35,000ft6,000mtVariousnewDesignsMSC/K-FELSDSS38QueirozGalvaoPerfuracoes9,000/30,000ft5,500mtFriede&GoldmanExDSeaDrill10,000/37,500ft7000stThe6thGenerationF&GExDPetroMenaJurong2006AkerH-6eAkerDrilling2008AkerGroup10,000/30,000ft7,780stMSC/K-FELSDSS21MaerskContractorsK-FELS200810,000/40,000ft7,700stGVA7500SeaDrillDaewoo200910,000/35,000ft7,000mtColumnStabilizedUnits(CSDU)
4onlybutlargercolumnsMainlytoprovidebuoyancy&stability
NoverticalbracingReducedhydrodynamicforcesReducednumberoffatiguesensitiveareas
HorizontalbracingImprovestrengthofdeck-columnjointModernStructuralConfiguration•Bargetypebuoyantupperhull
Providesaddedstability
Improvesstrengthofdeck-columnjoint
ProvideaddedspacesDrillshipWhyUseaDrillship?Advantages:
Verylargedeckloadcapacity,sothesuppliestodrillawellcanbestoredonboardthusreducingcostsfortransportationandminimizingrisktodrillingprogram
Self-propelled–caneasilymovetoanotherlocationathigherspeedthanotherdrillingunits
Canstore(ifsodesigned)producedoilonboardincargotanksfortestingwellflowratesandoilqualitypriortoinstallingaproductionfacilitysuchasanFPSO14WhyUseaDrillship?Disadvantages:
WavesmaycauselargemovementsthatmustbecompensatedforwithDPsystems–translatestoaddedcost.
Usesmoreenergytostayonlocation–operationalcostimpact
Cost–themostexpensiveintermsofinitialCAPEXwhenconsideringmaintypesofMODU15ComparisonofDrillshipvs.Semi16UseofDrillshipsforUltraDeepwater17DrillingfromaFloater18TheBeginnings–CUSS1
1948Shelljoinedpartners,Conoco,UnionoilandSuperiortoformCUSSGroup
GrouppurchasedasurplusYFBargeandbuiltadrillingrigoverahole,namedamoonpool,whichwasbuiltintothehull
Thisalloweddrillingandhoistingequipmenttobeinstalledmidlineforimprovedstabilitywhendrilling
Verticalguideswhichkeptthetravelingblockfromswaying
Mechanicalpipe-handlingsystem
Moored19Sedco445–FirstDPDrillship
Manager:Sedco
Design:Earl&Wright
RatedWaterDepth:7,200ft
Builder:MitsuiHullF-305
Delivery:1971TechnologyStepChangeTheunitisstilloperating–operatedbyTransoceanandrenamedDEEPWATERNAVIGATOR.Several1970s-builtdrillshipsarestillusefullyemployedintheinternationaldrillshipfleet–perhapsthemostfamousistheGSFEXPLORER(exHUGHESGLOMAREXPLORER)20MainFeaturesofDrillshipDesigns21HELIDECKDERRICKKNUCKLECRANEAZIMUTHTHRUSTER(DPS)LIFEBOATDRILLFLOORBOPBRIDGEMOONPOOLRISERPIPEAFTENGINEROOMACCOMMODATIONMUDMODULEMUDCIRCULATIONSYSTEMENTRANCE&EXITPartsofaDrillship22GeneralArrangementofaDrillship23TopsidesLayoutofaDrillship24STARBOARDPORTTypicalFeatures–HullStructureSource:HyundaiMipoDockyard
Hullgirder&itsstructuralmemberstoSVR
Hulltobedesignedforthebestdrillingoperationatdeepwaters
Hasenoughstrengthtobearallmax.loadsgeneratedbydrillingequipmentsuchasrisertensioningloads&heavecompensatingloads,etc.withallshipmotioninroughsea
Haswidespacetocarryoutdrillingatsea&toloadnecessarycargosuchasrisersanddrillpipes,drybulks,etc.25Drillship&Moonpool26TypicalFeatures–DrillFloor&SubstructureSource:HyundaiMipoDockyard
Drillfloor&substructurearedesigned&constructedtobearallstressesandloadsbythedraw-work&topdrive,derrick,heavecompensators,rotarytable,risertensioners,etc.
Asthemaindrillingworkareashouldhaveenoughworkingareawiththedrillmastercabin
Workareashouldbeprotectedfromroughenvironmentconditionbystrongwindwallinstalledaroundthedrillfloor27TypicalFeatures–DerrickSource:HyundaiMipoDockyard
Erectedonthedrillfloortoaccommodatemajordrillingequipmentsuchcrownblock,topdriveunit,heavecompensators,highpressurehydraulicline,setbacksystem&otherauxiliarysystems.
Typicalfootsizeof48x48ftandheightof180ftabovetopofdrillfloor
Typicalb