Induction heating of underground hydrocarbon deposits

Details Induction heating of underground hydrocarbon deposits Induction heating of underground hydrocarbon deposits

1975-03-10

1976-11-02

Novosad, Stephen J.

Wells

Processes

Electric current or electrical wave energy through earth for...

166302, 266287, E21B 4324, E21B 4325

Patent

active

039891070

ABSTRACT:
The electric induction heating in situ of a selected portion of an underground deposit of hydrocarbons (such as petroleum, especially petroleum entrapped within a sand formation or the like, or lignite), for the purpose of facilitating extraction of hydrocarbons from the deposit. The heating is conveniently effected by passing alternating current through a conductor encompassing the selected portion. The conductive path is preferably a toroid, helix, or simulated toroid or helix, created by drilling and passing one or more conductors through the drill holes.

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patent: 3472987 (1969-10-01), Viart
patent: 3727982 (1973-04-01), Itoh et al.
"AC Current Heats Heavy Oil for Extra Recovery," World Oil May 1970, pp. 83-86.

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