A mill for use in a wellbore, said mill comprising a bore for accomodating a core, characterised in that at least a portion of said bore does not extend axially of said mill to, in use, facilitate separation of the core from a tubular being milled.
申请公布号
WO9923345(A2)
申请公布日期
1999.05.14
申请号
WO1998GB03260
申请日期
1998.11.02
申请人
WEATHERFORD/LAMB, INC.;LUCAS, BRIAN, RONALD
发明人
BLIZZARD, WILLIAM, ALLEN;MCCLUNG, GUY, LAMONT;KUCK, MARC, DAVID;CARTER, THURMAN, B.