APPARATUS AND METHOD FOR MILLING A HOLE IN CASING

A milling apparatus which comprises a mill, and a starter bar which depends from said mill, characterised in that said starter bar is detachably connected to said mill.

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Bibliographische Detailangaben
Hauptverfasser:	WARD, RICHARD MICHAEL, CARTER, THURMAN BEAMER, LEE, MARK HOWARD, BLIZZARD, WILLIAM ALLEN JR
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	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
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Beschreibung
Zusammenfassung:	A milling apparatus which comprises a mill, and a starter bar which depends from said mill, characterised in that said starter bar is detachably connected to said mill.