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.
