Multilateral system分支井工具英文资料.docx
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Multilateral system分支井工具英文资料.docx
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Multilateralsystem分支井工具英文资料
Multilateralsystem
Content
LevelDefinitions2
Level2MultilateralSystem3
LEVEL3MULTILATERALSYSTEM4
LEVEL4MULTILATERALSYSTEM6
LEVEL5MULTILATERALSYSTEM8
Level6TheFormationJunctionMultilateralSystem9
Level6DOWNHOLESPLITTERSYSTEM10
Level6DeepsetSplitterSYSTEM12
TestFacility14
BakerOilToolsistheindustryleaderinprovidingmultilateralcompletionsforalllevelsoffunctionality.ThecasehistorieslistedbelowarenotacompletelistofeveryBOTcompletion,butratherasampleofthedifferentkindsofmultilateralinstallationsperformedtodate.
LevelDefinitions
Level2MultilateralSystem
AboutTAMLCategorization
TAML(TechnologyAdvancementofMultilaterals)isagroupofoperatorswithmultilateralexperiencewhodevelopedacategorizationsystemformultilateralwellsbasedontheamountandtypeofsupportprovidedatthejunction.Thiscategorizationmakesiteasierforoperatorstorecognizeandcomparethefunctionalityandrisk-to-rewardevaluationsofonemultilateralcompletiondesigntoanother.RecognizedTAMLlevelsincreaseincomplexityfromLevel1(simpleopenholemainbore)throughLevel6asshown.
LevelDefinitions
ABakerOilToolsLevel2multilateralsystemdeliversajunctionwhichincorporatesacasedandcementedmainborewithanopen-holelateralthatcanbecompletedbarefootorwithaslottedlinerorscreen.Ifapermanentorientationanddepthcontrolpointisdesiredforfuturere-entrywork,apermanentmultilateralpackercanbeusedwithaWindowMaster?
Whipstockacasingexitsystem.However,iffull-boreaccessthroughthemainboreisthemajorconcern,aretrievablemultilateralpackercanbeusedbelowtheWindowMasterWhipstock.
ALevel2multilateralwithapermanentorientationpointisconstructedbysettingapermanentmultilateralpacker(MLZXP?
LinerHanger/PackerorMLTorqueMaster?
Packer)inthecasedmainboredirectlybelowthedesiredkickoffdepth.Followingamultilateralpackerorientationrun,thesurface-orientedWindowMastermillingassemblyisrunandanchoredintothemultilateralpacker.WindowmillingandlateraldrillingareperformedandtheWindowMasterwhipstockassemblyisthenretrieved.Ifproductionisolationisrequiredduringthewelllife,aBakerOilToolsslidingsleeveisruninconjunctionwithatiebackstringandaBakerOilToolsproductionpackerthatissetabovethecasingexitpoint.Whenopen,thesleeveallowsforcommingledproductionofbothzonestothesurface.However,thesleevecanbeclosedtoshutoffflowfromthelateralformation.TheslidingsleevecompletionoptionDOESNOTallowforre-entryintotheupperlateral.
Ifre-entryintotheupperlateralisdesired,aBakerOilToolsLateralEntryNipple(LEN?
canbeusedinplaceoftheslidingsleeve.ThisLENtoolprovidesforthru-tubingre-entryintothelateralborewhenrequired.ProductionisolationoftheupperlateralisstillpossiblethroughtheuseofanisolationsleevethatcanbeplacedacrossthelateralboreopeningoftheLENtool.
AretrievablepackerLevel2systemisinstalledinthesamemannerasthepermanentpackeroption;however,themultilateralpacker(retrievableTorqueMaster)andWindowMasterarerunintandem,orientedsimultaneouslyusingMWDandtheretrievableTorqueMaster,thensetwithannularpressure.Afterdrillingthelateral,theWindowMasterandretrievableTorqueMasterassemblyareretrieved,leavingfull-gaugeaccessintothemainbore.
LEVEL3MULTILATERALSYSTEM
LevelDefinitions
ABakerOilToolsLevel3multilateralsystemdeliversamechanicallysupportedjunctioninwhichthemainboreiscasedandcementedwiththelateralopen.Thelateraliscompletedwithalaterallineranchored,butnotcemented,tothemainbore.ThereareessentiallythreebasicconfigurationsforprovidingaLevel3multilateraljunction.
Allthreeconfigurationsinvolvefirstsettingamultilateralpacker(MLZXPLinerHanger/PackerorTorqueMasterPacker)inthecasedmainboreatadepthtoallowforthedesiredkickoffpoint.Followingamultilateralpackerorientationrun,thesurface-orientedWindowMastermillingassemblyisruninandanchoredintothemultilateralpacker.Windowmillingandlateraldrillingarethenperformed,andtheWindowMaster?
Whipstockassemblyisretrieved.
InthefirstLevel3multilateraloption,aflow-throughdiverterisrunthenanchoredintothemultilateralpacker.Aslottedlinerhangingfromalinerhanger/productionpackeristhenrunintothelateral,andthepackerissetinthemainbore.Theslottedlinerandflow-throughdiverterallowforcommingledproduction.InthesecondLevel3multilateraloption,theflow-throughdiverteriseliminated.Instead,abentjointassemblyisusedwithsurfacemanipulationofthedrillpipeinordertodiverttheslottedlinerintothelateral.Asinthepreviousconfiguration,thelinerhanger/productionpackerisset,supportingthelateraltothemainbore.Neitheroptionallowsaccesstothemainboreformation,duetothepresenceoftheslottedlineracrossthejunction.
Athirdoption,usingtheBakerOilToolsHOOK?
Hangersystem,allowsforselectivere-entryintothelateralandthemainbore.TheHOOKHangerisacasingjointwithapre-cutmain-borewindow,internalre-entryorientationprofile,andahookbelowthepre-milledwindowthatisdesignedtocatchand"hang"thelaterallinerinthebottomofthecasingexitwindow.Re-entryisaccomplishedusingeitheralateralormain-borere-entrymoduleasabottomholeassemblyontubingorcoiledtubing.
LEVEL4MULTILATERALSYSTEM
LevelDefinitions
ABakerOilToolsLevel4multilateralsystemdeliversajunctioninwhichthemainboreandlateralarecasedandcemented,providingmaximummechanicalsupportofthejunctionarea.BakerOilToolsofferstwobasicconfigurationsforprovidingaLevel4multilateraljunction,theRootSystemSMandtheHOOKHangerSystem.
TheRootSystemjunctioniscreatedbyfirstdeployingamultilateralpacker(MLZXPLinerHanger/PackerorMLTorqueMasterPacker)intothemainborecasingatthedesiredjunctiondepth.Followingamultilateralpackerorientationtrip,anMLWhipstock?
millingassemblyisrunandanchoredintothemultilateralpacker.Themain-boreexitwindowisthencreatedusingtheMLWhipstockSystemmills,andthelateralwellisdrilled.Next,alinerisplacedinthelateralwellboreleavinganoverlapsectioninthemainbore.Thelaterallineristhencementedinplace.Oncethecementhascured,perforating,stimulation,andlateralcompletionoperationsareperformed.
Aftertheseproceduresarecomplete,awashoverassemblyisruntocutandretrievethelineroverlapinthemain-borecasing.Duringthisprocess,theMLWhipstockisalsoretrievedwiththewashoverassemblypassingaroundtheexteriorofthewhipstockandengagingintoaretrievalsublocatedintheassemblybelowthewhipstock.Thefinalmultilateraljunctionyieldsafullmain-boreIDatthejunctionarea.WiththeinclusionofadditionalBakercompletionequipmentsuchasslidingsleevesorBakerOilToolsLateralEntryNipple(LEN?
productionisolationandre-entrycapabilityintoeitherwellboreisalsopossiblewiththisLevel4multilateralsystem.
TheHOOKHangerSystemallowsforselectivere-entryintoeitherthelateralorthemainbore.Thissystemutilizesacasingjointwithpre-cutwindow,internalre-entryorientationprofileandahookbelowthepre-cutwindowdesignedtocatchand"hang"alaterallinerinthecasingexitwindow.Afteramultilateralpacker(MLZXPLinerHanger/PackerorMLTorqueMaster)issetbelowthedesiredcasingexitdepths,amultilateralpackerorientationtripismade,andtheWindowMastermillingsystemisrunandanchoredintheorientationpacker.Oncewindowmillingandlateraldrillingarecomplete,theWindowMasterwhipstockassemblyisretrieved.
TheHOOKHangerandlaterallinerassemblyarethenruninanddivertedintothelateralwellboreusingabentjointuntilthe"hook"ontheHOOKHangerengagesthecasingexitwindow.OncetheHOOKHangeris"hung"off,theassemblyiscementedinplace,resultinginaLevel4junctionofferingfullmechanicalsupportinadditiontopositivethru-tubingre-entryintoeitherlateral.
LEVEL5MULTILATERALSYSTEM
LevelDefinitions
ABakerOilToolsLevel5multilateralsystemdeliversbothamechanicallysupportedandhydraulicallyisolatedmultilateralcompletionwithfullre-entryandproductionisolationcapabilityintoeitherbore.Optionsareavailablethatallowforeitherindependentproductionofeachproducingzonetosurfaceorcommingledproductionofbothzones.Level5multilateralsofferthebestsolutionformultilateralwellsinweak,incompetentenvironmentssusceptibletowellborecollapse.
BakerOilToolsROOTSYSTEMisthebasicsystemfoundationforcreatingaLevel5multilateralcompletion.ABakerOilToolsMLZXPLinerHangerPackerorMLTorqueMasterPackerisruninconjunctionwithBakerOilToolMLWhipstockSystemtocreatethecasingexitwindow.Afterdrillingthelateral,thelateralcasingisrunandcementedinplacewiththetopofthelinerextendingbackthroughthecasingexitandintothemainboreportionofthewell.Thelateralborecanthenbeperforated,stimulated,andcompletedasrequired.
Aftercompletingthelateral,awashoverassemblytoolisusedtowashoverandretrievenotonlytheportionofthelaterallinerextendingintothemainbore,butalsotheoriginalMLwhipstockandanchorassembly.Atthispoint,aRootSystemLevel4hasbeencreatedofferingfullmechanicalintegrityacrossthejunction.AdditionalcompletionequipmentisinstalledtocreatethehydraulicintegrityrequiredforaLevel5
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