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深水钻井隔水管耦合系统分析(英文).docx

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深水钻井隔水管耦合系统分析(英文) AnalysisoftheCouplingSystemofDeepwaterDrillingCasingandConductor Abstract: Inthedeepwaterdrillingprocess,thecouplingsystemofthecasingandconductorplaysacrucialroleinpreventingfluidmigrationandmaintainingwellborestability.Thispaperaimstoprovideacomprehensiveanalysisofthecouplingsystemdesign,mechanicalproperties,andoperationalissues.First,wedescribethecomponentsofthecouplingsystem,includingtheseals,centralizers,casinghangers,andtorquerings.Second,wediscussthemechanicalpropertiesofthesystem,includingitsloadcapacity,stiffness,andstressdistribution.Finally,weexaminetheoperationalchallengesaffectingthecouplingsystem,suchasinstallationprocedures,testingmethods,andmaintenancerequirements.Overall,thispaperprovidesvaluableinsightsintothedesignandperformanceofthecouplingsystemindeepwaterdrillingoperations. Introduction: Deepwaterdrillingisachallengingandcomplexprocessthatrequiresadvancedtechnologyandequipment.Onecriticalcomponentofdeepwaterdrillingisthecouplingsystembetweenthecasingandtheconductor.Thecouplingsystemisresponsibleforprovidingareliablesealatthecasing-conductorinterface,preventingfluidmigrationwithinthewellbore,andsupportingtheweightofthecasingstrings.Inaddition,thecouplingsystemmustbeabletowithstandthehighstressesgeneratedduringdrilling,casing,andcompletionoperations.Therefore,designingandmaintaininganeffectivecouplingsystemiscriticalforthesuccessofdeepwaterdrillingoperations. ComponentsoftheCouplingSystem: Thecouplingsystemofthecasingandconductortypicallyincludesfourmaincomponents:theseals,thecentralizers,thecasinghangers,andthetorquerings.Thesealsarelocatedattheinterfacebetweenthecasingandconductor,andtheirprimaryfunctionistopreventfluidmigrationthroughtheannularspace.Thecentralizersservetomaintaintheconcentricitybetweenthecasingandconductor,minimizingtheriskofbucklingorcollapse.Thecasinghangersprovidesupportfortheweightofthecasing,whilethetorqueringsensurethatthecasingstringsareconnectedandrotatedconsistentlyduringinstallationanddrillingoperati