Redirecting deflected boreholes
United States Patent 2950900
US Patent References:
Automatically orienting whipstock
- - 2043381
Well drilling whip stock
- - 2101185
Whip stock anchor
- - 2145422
Expanding foot piece for whipstocks
- - 2207920
Automatically orienting whipstock
- - 2043381
Well drilling whip stock
- - 2101185
Whip stock anchor
- - 2145422
Expanding foot piece for whipstocks
- - 2207920
Inventors:
Wynes, Alfred C.
Publication Date:
08/30/1960
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Export Citation:
Assignee:
Wynes, Alfred C.
Primary Class:
Other Classes:
175/61
International Classes:
E21B7/10; E21B7/04