01SWTIntroductionV1

SchlumbergerPrivateSchlumbergerPrivateSurfaceTestingIntroductionSurfaceTestingIntroductionSurfaceTestingIntroductionSurfaceTestingIntroductionSurfaceTestingIntroductionSurfaceTestingIntroductionSurfaceTestingIntroductionSurfaceTestingIntroduction2FSSchlumbergerPrivateSchlumbergerPrivateAgendaAgendaAgendaAgendaAgendaAgendaAgendaAgenda•WELLTESTINGOVERVIEWWELLTESTINGOVERVIEWWELLTESTINGOVERVIEWWELLTESTINGOVERVIEW•WELLTESTTYPES&SEQUENCEWELLTESTTYPES&SEQUENCEWELLTESTTYPES&SEQUENCEWELLTESTTYPES&SEQUENCE•WELLTESTDATAWELLTESTDATAWELLTESTDATAWELLTESTDATA•SURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENT3FSSchlumbergerPrivateSchlumbergerPrivateWELLTESTINGOVERVIEWWELLTESTINGOVERVIEWWELLTESTINGOVERVIEWWELLTESTINGOVERVIEW•WellTestingWellTestingWellTestingWellTestingistheonlytechniquethatexaminesasignificantportionofthereservoirunderdynamicdynamicdynamicdynamicconditionsconditionsconditionsconditionstodetermineitsproductioncapabilitiesproductioncapabilitiesproductioncapabilitiesproductioncapabilities&reservoirproperties.reservoirproperties.reservoirproperties.reservoirproperties.4FSSchlumbergerPrivateSchlumbergerPrivateSixcommonobjectivesfitmostwelltests:Sixcommonobjectivesfitmostwelltests:Sixcommonobjectivesfitmostwelltests:Sixcommonobjectivesfitmostwelltests:1.Identifyproducedfluids6.Estimatecompletionefficiency2.Measurereservoirpressure&temperature3.Determinewellproductivity4.Obtainsamplessuitableforlaboratoryanalysis5.EvaluatereservoirparametersSchlumbergerPrivateSchlumbergerPrivateTypicalOffshoreSWTLayoutSchlumbergerPrivateSchlumbergerPrivate1-2-3-4Helpers1-2TCPSpecialists1/1Craneoperator/Driver1-2DSTSpecialists1Mechanic2Subseaspecialists1-2Oilphase,(BHS,SS,WFA)2-4Welltestoperators1-2SlicklineSpecialists2Welltestchiefoperators1-2TDASpecialists1-2SupervisorsTypicalOffshoreTestingcrew20ormorePeopleveryoften!7FSSchlumbergerPrivateSchlumbergerPrivate•INTRODUCTIONINTRODUCTIONINTRODUCTIONINTRODUCTION•WELLTESTTYPES&SEQUENCEWELLTESTTYPES&SEQUENCEWELLTESTTYPES&SEQUENCEWELLTESTTYPES&SEQUENCE•WELLTESTDATAWELLTESTDATAWELLTESTDATAWELLTESTDATA•SURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENT8FSSchlumbergerPrivateSchlumbergerPrivate•PressureTestingtheequipmentSequenceofoperationsformostofWTare:SequenceofoperationsformostofWTare:SequenceofoperationsformostofWTare:SequenceofoperationsformostofWTare:•Cleaningupthewell•Flowingthewellatonerateorseveralsuccessiverates.•Takingrepresentativefluidssamples.•RecordingthepressureBuild-upduringaFinalShut-In.9FSSchlumbergerPrivateSchlumbergerPrivatePT0DST–ExplorationoilwellTestsequencePhPOOHRIHInitialflow5minInitialS.I.1hrCleanup(adj.choke)graduallyto64/64thDeterminationofthebestchoke(nodepletion)FirstS.I.(optional)1stflow32/64thFixedchokeThruseparator2ndflow64/64thSurfaceSamplingFinalS.I.ForpressureBuild-upFlowon16/64th(BHS)KillwellAtsurface10FSSchlumbergerPrivateSchlumbergerPrivate•ExplorationwellExplorationwellExplorationwellExplorationwellOpenOpenOpenOpen----holeDST:holeDST:holeDST:holeDST:normallyshorttest(lessthan12hours),Flowhead.CasedCasedCasedCased----holeDST:holeDST:holeDST:holeDST:iflogs,open-holeDSTarepromisingcasingwillbeRIH,thenperforationsTypesofWT11FSSchlumbergerPrivateSchlumbergerPrivate•ProductionTestsProductionTestsProductionTestsProductionTestsReservoirLimitTests:ReservoirLimitTests:ReservoirLimitTests:ReservoirLimitTests:Along(1,2,3,4weeks)testtodeterminetheextentofthereservoir.ExtendedWellTesting:ExtendedWellTesting:ExtendedWellTesting:ExtendedWellTesting:LongtermWT(afewweekstoafewmonths).E.P.F.(EarlyProductionFacilities)E.P.F.(EarlyProductionFacilities)E.P.F.(EarlyProductionFacilities)E.P.F.(EarlyProductionFacilities)E.P.S.(EarlyProductionServices)E.P.S.(EarlyProductionServices)E.P.S.(EarlyProductionServices)E.P.S.(EarlyProductionServices)InterferenceorPulseTests:InterferenceorPulseTests:InterferenceorPulseTests:InterferenceorPulseTests:.TypesofWT12FSSchlumbergerPrivateSchlumbergerPrivate•WELLTESTINGOVERVIEWWELLTESTINGOVERVIEWWELLTESTINGOVERVIEWWELLTESTINGOVERVIEW•WELLTESTTYPE&SEQUENCEWELLTESTTYPE&SEQUENCEWELLTESTTYPE&SEQUENCEWELLTESTTYPE&SEQUENCE•WELLTESTDATAWELLTESTDATAWELLTESTDATAWELLTESTDATA•SURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENTSURFACETESTINGEQUIPMENT13FSSchlumbergerPrivateSchlumbergerPrivateDaytodayresultsDaytodayresultsDaytodayresultsDaytodayresultsforthePetroleumEngineer:2.BSW(BasicSediment&Water)2.BSW(BasicSediment&Water)2.BSW(BasicSediment&Water)2.BSW(BasicSediment&Water)Handorelectriccentrifugemachine3.WHP(WellHeadPressure)3.WHP(WellHeadPressure)3.WHP(WellHeadPressure)3.WHP(WellHeadPressure)DWT,Foxborochartrecorder,Dialgauge4.WHT(WellHeadTemperature)4.WHT(WellHeadTemperature)4.WHT(WellHeadTemperature)4.WHT(WellHeadTemperature)Alcoholthermometer,TemperatureSensor1.1.1.1.RoughGascomposition(H2S,CO2)RoughGascomposition(H2S,CO2)RoughGascomposition(H2S,CO2)RoughGascomposition(H2S,CO2)Draegerpumpwithreactivetubes14FSSchlumbergerPrivateSchlumbergerPriva