Three dimensional steerable system

An apparatus for steering a bit while drilling a borehole, comprising: a first housing (26) connected to a second housing (28) by a universal joint (30), said first housing having a first axis (74) and said second housing having a second axis (72); a first cam member (80) mounted on said first housi...

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Bibliographic Details
Main Authors ODELL, ALBERT C. II, ESTEP, JAMES W, EPPINK, JAY M, WILSON, THOMAS P, TERRY, JAMES B, TRAINOR, WILLIAM F
Format Patent
LanguageEnglish
French
German
Published 06.07.2005
Edition7
Subjects
DETECTING MASSES OR OBJECTS
EARTH DRILLING
EARTH DRILLING, e.g. DEEP DRILLING
FIXED CONSTRUCTIONS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
MINING
OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
PHYSICS
TESTING
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Summary:An apparatus for steering a bit while drilling a borehole, comprising: a first housing (26) connected to a second housing (28) by a universal joint (30), said first housing having a first axis (74) and said second housing having a second axis (72); a first cam member (80) mounted on said first housing; a plurality of second cam members (86a,86b,86c) movably mounted on said second housing and engaging said first cam member; and said second cam members having a first position with respect to said first cam member forming a first angle and a first azimuth between said first and second axes and a second position with respect to said first cam member forming a second angle and a second azimuth with respect to said first cam member.
Bibliography:Application Number: EP20050075637