发明名称 APPARATUS AND METHOD FOR MILLING THROUGH A WHIPSTOCK IN A WELLBORE
摘要 An apparatus for milling through a whipstock in a wellbore, which apparatus comprises a mill guide with a lower shoe for emplacement between an interior surface of the wellbore and an exterior portion of an upstream portion of the whipstock to position and/or stabilize the mill guide.
申请公布号 WO9936662(A1) 申请公布日期 1999.07.22
申请号 WO1999GB00036 申请日期 1999.01.18
申请人 WEATHERFORD/LAMB, INC.;LUCAS, BRIAN RONALD 发明人 DURST, DOUGLAS GLENN;ROBERTSON, ROBERT, EUGENE;CARTER, THURMAN, B.;JOHANTGES, PAUL, JEFFREY;PLEASANTS, CHARLES, W.;BLIZZARD, WILLIAM, ALAN, JR.;LANGFORD, DALE, ELLIOTT;MCCLUNG, GUY, LAMONT, III
分类号 E21B7/06;E21B7/08;E21B29/00;(IPC1-7):E21B29/00 主分类号 E21B7/06
代理机构 代理人
主权项
地址