Hydraulically set packer useful with independently set straddle packers including an inflate/deflate valve and a hydraulic ratchet associated with the straddle packers
摘要
申请公布号
US5058673(A)
申请公布日期
1991.10.22
申请号
US19900576327
申请日期
1990.08.28
申请人
SCHLUMBERGER TECHNOLOGY CORPORATION
发明人
MULLER, LAURENT E.;RANDERMANN, JR., ERVIN;UPCHURCH, DECEASED, JAMES M.
