Title:
Turbo-generator heater for oil and gas wells and pipe lines
United States Patent 3342267
US Patent References:
Self-powered rotary drilling apparatus
- - 2643087
Well heater
- - 2666487
Oil well fishing tool
- - 2709104
Bottom-hole turbogenerator drilling unit
- - 3036645
Self-powered rotary drilling apparatus
- - 2643087
Well heater
- - 2666487
Oil well fishing tool
- - 2709104
Bottom-hole turbogenerator drilling unit
- - 3036645
Inventors:
Cotter, Gerald S.
Huffmaster, James E.
Huffmaster, James E.
Publication Date:
09/19/1967
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Export Citation:
Assignee:
Cotter, Gerald S.
Huffmaster, James E.
Huffmaster, James E.
Primary Class:
Other Classes:
392/301, 166/66.400, 392/482
International Classes:
E21B36/04; E21B36/00