A tool string for use in a well to retrieve a completion string while maintaining control of a well without having to kill the well (i.e., without having to exceed formation pressure) each time the string is retrieved.
申请公布号
CA2376806(A1)
申请公布日期
2002.09.14
申请号
CA20022376806
申请日期
2002.03.14
申请人
SCHLUMBERGER CANADA LIMITED
发明人
WETZEL, RODNEY J.;READ, DENNIS M.;MESCALL, STEPHEN;MILLIGAN, CLAY W., JR.
