Slant hole directional drilling tool - with drill collar carrying cam variably oriented relative an enlarged cutter on roller cone bit

A slant hole directional drilling tool includes a drilling tool includes a drill collar carrying a bit having roller cone cutters of which one is of larger dia. than the remainder and is located in predetermined angular relationship to a lobe on the collar which contacts the low side of the borehole...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	MCMAHON, HARVEY SAMUEL, HUNTINGTON BEACH, CALIF. (V.ST.A.)
Format:	Patent
Sprache:	eng ; ger
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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