Ivalve yokhuseleko lwangaphantsi komhlaba (SCSSV)
Ivalve yokhuseleko lwe-downhole esebenza kwiindawo ezingaphezulu ngomgca wokulawula obotshelelwe kumphezulu wangaphandle wetyhubhu yokuvelisa.Iindidi ezimbini ezisisiseko ze-SCSV zixhaphakile: i-wireline inokubuyiswa, apho amacandelo aphambili e-valve yokhuseleko anokuthi aqhutywe kwaye athathwe kwakhona kwi-slickline, kunye ne-tubing retrievable, apho yonke i-asembly-valve yokhuseleko ifakwe kunye nomtya we-tubing.Inkqubo yokulawula isebenza ngendlela engaphumeleliyo, kunye noxinzelelo lwe-hydraulic control esetyenziselwa ukubamba ibhola elivulekileyo okanye i-flapper ibandla eliya kuvala ukuba uxinzelelo lolawulo lulahlekile.
