Apparatus and method for milling through a whipstock in a wellbore

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 whip...

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Hauptverfasser: MCCLUNG, GUY, LAMONT, III, ROBERTSON, ROBERT, EUGENE, LANGFORD, DALE, ELLIOTT, JOHANTGES, PAUL, JEFFREY, DURST, DOUGLAS GLENN, CARTER, THURMAN B, BLIZZARD, WILLIAM, ALAN, JR, PLEASANTS, CHARLES, W
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creator MCCLUNG, GUY, LAMONT, III
ROBERTSON, ROBERT, EUGENE
LANGFORD, DALE, ELLIOTT
JOHANTGES, PAUL, JEFFREY
DURST, DOUGLAS GLENN
CARTER, THURMAN B
BLIZZARD, WILLIAM, ALAN, JR
PLEASANTS, CHARLES, W
description 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.
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subjects EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
title Apparatus and method for milling through a whipstock in a wellbore
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