Ib txoj kab me me hydraulic siv los ua cov khoom siv ua tiav hauv qhov chaw xws li qhov chaw tswj qhov chaw ruaj ntseg valve (SCSSV).Feem ntau cov tshuab ua haujlwm los ntawm kev tswj kab ua haujlwm ntawm lub hauv paus tsis ua haujlwm.Nyob rau hauv hom no, cov kab tswj tseem muaj zog txhua lub sijhawm.Ib qho kev xau lossis tsis ua haujlwm ua rau poob ntawm kev tswj kab siab, ua kom kaw qhov kev nyab xeeb valve thiab ua rau lub qhov dej nyab xeeb.
Surface-controlled Subsurface Safety Valve (SCSSV)
Lub downhole kev nyab xeeb valve uas yog ua los ntawm cov chaw saum npoo los ntawm kev tswj kab uas khi rau sab nraud ntawm cov tubing ntau lawm.Ob hom SCSSV yog ib qho yooj yim: xaim xaim rov qab tau, uas yog qhov tseem ceeb ntawm kev nyab xeeb-valve Cheebtsam tuaj yeem khiav thiab muab rov qab rau ntawm slickline, thiab tubing retrievable, nyob rau hauv uas tag nrho cov kev ruaj ntseg-valve sib dhos yog ntsia nrog cov hlua tubing.Lub kaw lus tswj tau ua haujlwm hauv hom tsis ua haujlwm, nrog kev tswj xyuas hydraulic siv los tuav qhib lub pob lossis lub foob pob hluav taws uas yuav kaw yog tias lub siab tswj tau poob.
