Description

Oil Well Hydraulic Expansion External Casing Packer

1.Application
Itisanimportantwellcompletiontool.Itsmainlyusedincomplexoil,gasorwaterwellcompletionengineeringtorealizedownholepackingorplugging,improvewellcementationandwellcompletion.

2.Structureandworkprinciple
Usingexpandingsteelframerubberassealingelement,itisapermanentexternalcasingpackerthatsettingcontrolledbyCombinationvalves.Itismainlycomposedofvalvejoint,rubberassembly,centraltube,pupjoint,couplingandsoon.Duringconstruction,whenrubberpluggothroughvalvejoint,rodinthesealinginletholebreakofftoopentheinlethole.Whentherubberplugruntospoiler,startbuiltpressureincasing.Liquidrunintoopenvalvefromvalvejoint,whenthepressurereachedtothedesign,pinonopenvalvewascuttorealizeopentheopenvalve.Liquidgothroughcheckvalveandpressurelimitingvalve,runintothecavitybetweencentraltubeandrubber.Thenpackerexpansionandclosetowellwalltofromseal.Whenexpansioncavitypressurereachedtothedesignofpressurelimitingvalvepin,pinbreakoff,pressurelimitingvalvetakemovementtoclosetheinletholeinordertorealizesealingsafety.Wellheadreleasepressureto0,openvalveselflockingtorealizepermanentlyclosed.Downholepressureoperationhasnoinfluenceofpacker.Inthespecialpipestringprecess,itcanruninnerpipetoolstosetpackerinordertorealizespecialwellcompletion(eg:wellcompletionbypackerorpackersievetube).

3.Characteristics
1)Simpleoperation,noneedtochangetheoriginaloperatingcraft.
2)Betteradaptability,beingapplicabletooil/waterwellundervariousdifferentcondition.
3)Valvesystemcaneffectivelyprotectandexactlycontrolthetoolstotakesettingsafely.
4)Bigexpansioncoefficient,smalldiameterrubberbarrelcansealthebigdiameterwell.When*0mmpackerisusedin7casing,breakdownpressurecanreach*8Mpa.
5)Smallresidualdeformation.
6)Ithashightemperatureresistantlevel,andcanbearbigdifferentialpressure,withsmallresidualdeformation.
7)Longsealingsection,reliablesetting.

PuyangKeruioilwelltoolsfactoryfor*3years,wasestablishedin***1andpassedIS****1certificationin***7.PuyangKeruispecializedindesign,OEM,production,thewellknownmanufacturerinpetroleummachineryfield.Gladtoseeyourinquiryandwarmlywelcometovisitourfactory!