A differential pressure actuating system for downhole tools provides endless operation by the use of the differential pressure between two isolated zones of a well as a power source for the tool. That differential pressure is applied across a power transfer element to operate the downhole tool.
申请公布号
CA2061576(A1)
申请公布日期
1992.08.21
申请号
CA19922061576
申请日期
1992.02.20
申请人
SCHULTZ, ROGER L.;MANKE, KEVIN R.;SKINNER, NEAL G.
发明人
SCHULTZ, ROGER L.;MANKE, KEVIN R.;SKINNER, NEAL G.
