Wells – Processes – Electric current or electrical wave energy through earth for...
Patent
1975-03-10
1976-08-03
Novosad, Stephen J.
Wells
Processes
Electric current or electrical wave energy through earth for...
165 45, 166256, 166303, 219 1041, 219 1057, E21B 4324, E21B 4325
Patent
active
039723720
ABSTRACT:
A method of extracting hydrocarbons in situ from an underground hydrocarbon deposit (such as petroleum or lignite). A selected part of the deposit is heated by electrical induction to temperatures high enough to drive off hydrocarbon fractions as gases or vapors, which are then collected. The deposit may be heated through a coking and cracking stage. The electrical induction heating is conveniently effected by passing alternating current through a conductive path encompassing that part of the deposit to be heated.
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"AC Current Heats Heavy Oil for Extra Recovery", World Oil May 1970, pp. 83-86.
Fisher Charles B.
Fisher Sidney T.
Barrigar R. H.
Novosad Stephen J.
Suckfield George A.
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