Ivalvu yokuphepha engaphansi komhlaba elawulwa ngaphezulu (SCSSV)
I-valve yokuphepha ye-downhole esebenza kusuka ezindaweni ezingaphezulu ngomugqa wokulawula oboshelwe endaweni yangaphandle yeshubhu lokukhiqiza.Izinhlobo ezimbili eziyisisekelo ze-SCSV zivamile: ulayini obuyiselekayo, lapho izingxenye zevalvu yokuphepha eziyinhloko zingasetshenzwa futhi zilandwe ku-slickline, kanye neshubhu elikhiphekayo, lapho lonke ukuhlanganiswa kwe-valve yezokuphepha kufakwa khona ngentambo yeshubhu.Uhlelo lokulawula lusebenza kumodi ehlulekayo, ngokucindezela kokulawula kwe-hydraulic okusetshenziselwa ukubamba ukuvula ibhola noma umhlangano we-flapper ozovala uma ukucindezela kokulawula kulahleka.
