【7A文】INTRODUCTION TO COILED TUBING(连续油管介绍).ppt

《【7A文】INTRODUCTION TO COILED TUBING(连续油管介绍).ppt》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、INTRODUCTIONTOCOILEDTUBINGToprepareforplanningandexecutingCTworkoveroperationinasafeandcost-effectivemanner.Pursuanttothisobjective,itwillprovideadetaileddiscussionofCTtechnology,itsapplicationsandgeneralguidelinesofCToperation.TheObjectiveofthePPTTheOriginofCT------PLUTO(Piplineundertheocean)CHAP

2、TER1.TheHistoryofCTDevelopmentTheEvolutionofCTequipmentBeneficialfeaturesofCTincluding:SafeandefficientlivewellinterventionCapabilityforrapidmobilization,rig-upandwellsitepreparationAbilitytocirculatewhileRIH/POOHReducedtriptime,hencelessproductiondowntimeLowerenvironmentimpactandriskReducedcrew/p

3、ersonnelrequirementsRelativelylowcostTheCTServicesModernCTmakesuseofthefollowingfeaturesLivewelloperationsHighpressureconduitContinuouscirculationRigidityandstrengthInstalledconductorsandconduitsModernCTequipmentisnowcommonlyusedtoperformavarietyofapplicationsonwellsitesorlocationofwidelyvaryingco

4、nditions.WellControlEquipmentBOPtoppedwithasidedoorstripper(highpressureCTunitshavetwostrippersandadditionalBOPcomponents).ComponentsmustberatedtoWHP,givenoperationtemperatureandbecompatiblewithanycorrosivefluidsthatmightbeproducedinthewell.CHAPTER2.CTSurfaceEquipmentAexamplewellcontrolstackforCTo

5、perationsatWHPupto15,000psi.BlowoutPreventer(BOP)ACTBOPconsistsofseveralpairsoframs.Eachtypeoframperformsaspecificfunction.ThefourramsofstandardquadCTBOPhavedifferentfunctions(fromtoptobottom):Blindram-sealswellborewhenCToutofBOPShearram-cutstheCTSlipram-supportsweightofCTPiperam-sealsaroundhangin

6、gCTTheLeftisanothertypeofquadBOPTherightisatypicalcombi-BOPStripper(StuffingBox)Provideprimaryoperationalsealbetweenpressurizedwellborefluidsandthesurfaceenvironment.FormadynamicsealaroundCTduringtrippingandastaticsealwhenitisstationary.Thesidedoorstripperpermitseasyaccessandremovalofthesealingele

7、mentswiththeCTinplace.StripperelastomerCTradialstripperWellheadConnectionsThehydraulicquicklatchisapressurecontroltoolthatmakestheriggingprocessquickerandsafer.Thequicklatchisnormallythelastconnectionmadeduringth