侧钻技术RE-ENTRY,BITS

11开窗和侧钻开窗和侧钻22事例说明事例说明事例说明••AproxAprox.100,000wellsinWestern.100,000wellsinWesternCanadaCanada••Expect10%wouldbereentryExpect10%wouldbereentrycandidatescandidates••10,000wellstobereworked10,000wellstobereworked••similarsituationsinallmatureoilsimilarsituationsinallmatureoilfieldsfields33侧钻的原因侧钻的原因侧钻的原因••PotentialBenefitsPotentialBenefits––Reducecost(40%to60%savings)Reducecost(40%to60%savings)••DependingontargetdepthDependingontargetdepth––UseofexistinglocationandsurfaceUseofexistinglocationandsurfacefacilitiesfacilities••LessenvironmentalimpactLessenvironmentalimpact••GatheringsystemundergroundGatheringsystemunderground––KnowngeologyKnowngeology••ExistingExisting““probeprobe””holehole44井眼条件井眼条件井眼条件••Currentstatus--shutin,plugged,Currentstatus--shutin,plugged,etc.etc.––junkinhole,badlyabandonedjunkinhole,badlyabandoned••CasingandholesizesCasingandholesizes••CementtopsCementtops••PreviousPreviousworkoversworkovers--types?--types?––remedial--indicatorofpotentialremedial--indicatorofpotentialproblemsproblems••casingcondition--corrosion,etc.casingcondition--corrosion,etc.––recompletionsrecompletions55人工举升人工举升人工举升••ArtificialliftrequirementsofnewArtificialliftrequirementsofnewcompletioncompletion––type(ESP,rodpump,gaslift,type(ESP,rodpump,gaslift,……))––size(volume,OD,clearance,size(volume,OD,clearance,……))––placement(TVDposition,placement(TVDposition,……))––drawdowndrawdownpoint(inletpoint)point(inletpoint)••CasingsizeandbuildratesCasingsizeandbuildrates••PLANAPLANAHHEEAADD66BottomsUpPlanningBottomsUpPlanningDrillingSystemCasingExitEvaluationDrill-InFluidsDrillingRigCompletionPROJECTPROJECTSUCCESSSUCCESSReservoir77造斜方法造斜方法造斜方法••OpenholeOpenhole(Usually-newwells)(Usually-newwells)––OnbottomOnbottom––OffbottomOffbottom––CementplugCementplug••Casing(Usually-re-entries)Casing(Usually-re-entries)••SetacementpluginamilledsectionSetacementpluginamilledsection••SetaSetawhipstockwhipstockandcutthewindowandcutthewindow88有套管存在情况下侧钻应考虑的因素有套管存在情况下侧钻应考虑的因素••MillingandwindowcuttingMillingandwindowcuttingtechnologytechnology••Multi-lateralMulti-lateralwhipstockwhipstockcapabilitiescapabilities••MediumOrShortRadiusDrillingMediumOrShortRadiusDrillingSystemsSystems••MWDAndSurveySystemsMWDAndSurveySystems••UsedOnConventionalAndUsedOnConventionalAndWorkoverWorkoverRigsRigsorCoiledTubingUnitsorCoiledTubingUnits99窗口选择窗口选择••CementplugCementplug––IntegrityequaltoorformationIntegrityequaltoorformation––GreaterriskGreaterrisk••RetrievableRetrievablewhipstockwhipstockpackerpacker1010采取的方式采取的方式采取的方式WhipstockWhipstockorSectionorSectionvs.vs.Cut&PullCut&PullTOC?TOC?ororHighHighHoleHoleSizeSize1111不同技术的比较不同技术的比较不同技术的比较••WhipstockWhipstock/Section/Section––smallerholesmallerhole––lowercosts(+)lowercosts(+)––smallextracasingsmallextracasingstring(-)string(-)––useofCTD(+/-)useofCTD(+/-)––useofUBD(+/-)useofUBD(+/-)––onesizeofBHAonesizeofBHA’’ss(+)(+)••Cut/PullCut/Pull––largerhole(+)largerhole(+)––casingcosts(-)casingcosts(-)––extracasingbackupextracasingbackup(+)(+)––useofCTD(+)afteruseofCTD(+)aftersettingcasingincurvesettingcasingincurve––useofUBD(+/-)useofUBD(+/-)––twosizesofBHAtwosizesofBHA’’s(-)s(-)1212侧钻井眼尺寸ToolResilience/Strength侧钻井眼尺寸侧钻井眼尺寸ToolResilience/StrengthToolResilience/StrengthCasingDiameterCasingDiameterBitDiameterBitDiameter77””66””to6-1/8to6-1/8””5-1/25-1/2””44””to4-3/4to4-3/4””4-1/24-1/2””3-5/83-5/8””to3-7/8to3-7/8””1313NewWellKick-OffOrient3PointGeometryNewWellKick-OffNewWellKick-OffOrient3PointGeometryOrient3PointGeometry1414Section&CementMilledPlugSection&CementSection&CementMilledPlugMilledPlug1515WindowMillWhipstockDictatesDirectionWindowMillWindowMillWhipstockWhipstockDictatesDirectionDictatesDirectionStartingMillStartingMillWatermelonMillWatermelonMillCibpCibpDrillPipeDrillPipeCrossoverCrossoverSubSubStartingCutStartingCutWindowWindowMillMillWatermelonWatermelonMillMillCrossoverSubCrossoverSubStartingMillStartingMillStringStringMillMill1616可回收斜向器及封隔器可回收斜向器及封隔器RetrievableRetrievableWhipstockWhipstockPackerPackerBeforeCasingExitAfterCasingExitHousingAnchorpackerExcluderInnerwhipstockMillsUndergagedTrip-InLugsOuterwhipstock•RIHcompleteretrievablewhipstockassemblytodesireddepth•Rotaterighthand360ºminimumtoengageanchorinthesetmode•RotatetoproperorientationMillsUndergagedTrip-InLugsHousingOuterWhipstockInnerWhipstockExcluderAnchorPacker•RIHCompleteRetrievableWhipstockAssemblyToDesiredDepth•RotaterightHand360°MinimumToEngageAnchorInTheSetMode•RotateToProperOrientation•POOHfullgagemill•RIHwithinnerwhipstockretrievingtoolorovershot•Pull80,000lbsreleasing,anchorandpoohExcluderInnerwhipstockAnchorpackerOvershotorRetrievingToolOvershotorRetrievingToolInnerWhipstockExcluderAnchorPacker•POOHFullGageMill•RIHWithInnerWhipstockRetrievingToolOrOvershot•Pull80,000lbsreleasingAnchor,AndPOOH1717WindowCutting-CasingExitWindowCutting-CasingExitThePermanentThePermanentWhipstockWhipstockSystemSystemMetalMuncherStartingMillCrossoversubDP/HWDPPackerWhipstockWhipstockSetSetPinShearedandPinShearedandWindowStartedWindowStartedCasingWhipstockHWDP/DPWin