PROCESS OF DRILLING A WELL WITH HOT SOUR GAS DRILLING FLUID
United States Patent 3463250
US Patent References:
Air course drill bits
- - 2814464
Method of drilling wells with gas
- - 3172487
Production of aqueous foams and compositions therefor
- - 3215200
Air course drill bits
- - 2814464
Method of drilling wells with gas
- - 3172487
Production of aqueous foams and compositions therefor
- - 3215200
Inventors:
Calhoun, George H.
Bingman, William E.
Swanson, Theodore M.
Bingman, William E.
Swanson, Theodore M.
Publication Date:
08/26/1969
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Export Citation:
Assignee:
SHELL OIL CO
Primary Class:
Other Classes:
166/292, 175/69, 507/102, 166/303
International Classes:
E21B21/16; E21B41/02; E21B21/00; E21B41/00; E21B7/18; E21B21/04