BDMI_NE 井下安全阀

TheseinstructionsdescriberesultsfromtheuseofHalliburtonequipment,butsuchresultsarenotguaranteed.OperationofequipmentissubjecttomechanicallimitationsandHalliburtonshallonlybeliableformerchandiseandserviceassetforthinitsgeneraltermsandcontract.©2003HalliburtonBasicDesignandMaintenanceInstructionsNo:Date:NETRSVUniversalHalliburtonUniversalNETubing-RetrievableSafetyValve(TRSV)–Self-EqualizingR/N:Page1of34781NE0000012-10-03031204Copyisuncontrolled.TableofContentsDesignOverview...........................................................2DesignPrinciple...........................................................2SafetyIssuesandWarnings...................................................3MaximumFail-ClosedSettingDepth...........................................5OpeningProcedure.........................................................6GuidelinesforHold-OpenPressure............................................7MaximumHold-OpenPressure.........................................7MinimumHold-OpenPressure.........................................7RecommendedHold-OpenPressure.....................................7MaximumControl-LinePressureforNon-ElastomerNETRSV......................8Control-LinePressureTesting................................................9InstallationProcedure......................................................10IsolationAssembly........................................................11InstallingtheTRSV........................................................11TestingProcedure.........................................................13OperationandMaintenance.................................................14MaintenanceandRepair....................................................14TestingNeworRepairedValves.............................................14DisassemblyInstructions....................................................15AssemblyInstructions......................................................18HIFControl-LineFittingInstallationProcedure..................................23IDDriftInstructionsforTubingRetrievableSCSSVs.............................28Troubleshooting..........................................................28DeterminingPistonMovement........................................28TroubleshootingChart......................................................30ProcedureforLockingValvesOpen...........................................33InstallingWireline-RetrievableSafetyValveswithinLock-OpenTubing-RetrievableValves...............................33AssemblyDrawing........................................................34Page2of34BasicDesignandMaintenanceInstructionsNo:Date:HalliburtonUniversalNETubing-RetrievableSafetyValve(TRSV)–Self-EqualizingR/N:NETRSVUniversal781NE0000012-10-03031204DesignOverviewThisHalliburtonNon-ElastomerNETubing-RetrievableSafetyValveisaself-equalizing,flapper-typesafetyvalvedesignedtoshutinawellatapointbelowthesurface.Thesafetyvalveisasurface-controlled,subsurfacesafetyvalve(SCSSV)andisnormallyclosed.Thevalveisheldopenbyhydrauliccontrolpressureandremainsopenuntilthecontrol-linepressureisexhausted.Thehydrauliccontrolpressureistransmittedfromaremotelocationthroughacontrollinewhichoperatesthevalve.DesignPrincipleTheHalliburtonTubingRetrievableSafetyValve(TRSV)containsapistonopposedbyacompressionspringandthewellpressure,whichoperatesaflappermechanism.Whenpressureisreleasedfromthepistonchamber,thespringmovesthepistonup,andthetorsionspringrotatestheflappertotheclosedposition.Thevalveisaself-equalizingTRSV.Openingthevalve,requiresapplyingpressuretothecontrollinetoequalizethepressureacrosstheclosuredevice.Oncethepressurehasbeenequalizedacrosstheflapper,hold-openpressureisappliedtothecontrollinetofullyopentheflapper.Thevalvealsohasaprotectionfeaturethatpreventsitfromopeningunlesspressureacrosstheclosuremechanismisequalized.TheTRSVisonlyretrievedwiththetubing.Thevalveshouldnotbeusedregularlytoshutinthewell.Page3of34BasicDesignandMaintenanceInstructionsNo:Date:HalliburtonUniversalNETubing-RetrievableSafetyValve(TRSV)–Self-EqualizingR/N:NETRSVUniversal781NE0000012-10-03031204SafetyIssuesandWarningsEnsurethatallHealth,Safety,andEnvironment(HSE)requirementsaremetbeforecommencingthework.Maintaingoodhousekeepingstandardsintheworkareaatalltimes.PersonalProtectiveEquipment—EnsurethatallrequiredPPE(safetyglasses,gloves,steel-toedshoes,andhardhats,ifrequired)isworn.HandTools—Allhandtoolsmustbecleanandingoodworkingcondition.Hammers,chisels,andpunchesshouldnothavemushroomedheadsthatwillchipwhenhit.Wrenchesshouldhavesharphooksandheelsandnothavebenthandles.Ensurethetoolsarenotgreasytoavoidslippingthatmayresultinseriouspersonalinjury.Hairmustbestyledinamannertopreventexposuretothehazardofentanglementorcompletelycovered.NoJewelry—bracelets,chains,earrings,necklaces,rings,wristwatches,ornamentaljewelry,etc.Clothing—Noimproperclothingthatmayexposetheindividualtotheriskofentanglement.Thismayincluderagged,torn,orloosefittingclothing.Nonon-tear-awayaprons,ties,scarves,hairribbons,etc.HeavyObjects—Donotliftheavyob