Title:
Turbo-generator heater for oil and gas wells and pipe lines
United States Patent 3342267
Inventors:
Cotter, Gerald S.
Huffmaster, James E.
Publication Date:
09/19/1967
Export Citation:
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Assignee:
Cotter, Gerald S.
Huffmaster, James E.
Primary Class:
166/60
Other Classes:
166/66.4, 392/301, 392/482
International Classes:
E21B36/04; E21B36/00
View Patent Images:
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US Patent References:
3036645Bottom-hole turbogenerator drilling unit
2709104Oil well fishing tool
2666487Well heater
2643087Self-powered rotary drilling apparatus