Apparatus and method for milling through a whipstock in a wellbore
摘要
A method for milling within a whipstock set in a wellbore comprises introducing a mill guide (30) having a channel therethrough into the wellbore above the whipstock. The mill guide is moved into stabilising contact with the whipstock and a mill is guided by the mill guide to mill down into the whipstock. The mill has at least a portion thereof in contact with the mill guide while milling into the whipstock. <IMAGE> <IMAGE>
申请公布号
EP1312751(A2)
申请公布日期
2003.05.21
申请号
EP20020102822
申请日期
1999.01.18
申请人
WEATHERFORD/LAMB, INC.
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