In situ radio frequency selective heating process and system

Details In situ radio frequency selective heating process and system In situ radio frequency selective heating process and system

1978-12-07

1981-11-24

Novosad, Stephen J.

Wells

Processes

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

166 52, 166 60, 166 65R, 166271, E21B 4324, E21B 4326

Patent

active

043018653

ABSTRACT:
The process and apparatus for extracting the products of kerogen in situ from an oil shale body by supplying energy selectively to the kerogen by high frequency electric fields in the frequency range between 100 kilohertz and 1000 megahertz at an intensity which heats the kerogen to a temperature range between 250.degree. C. and 500.degree. C. to allow pyrolysis of the kerogen prior to substantial heat transfer to the surrounding mineral portions of the oil shale.

REFERENCES:
patent: 2685930 (1954-08-01), Albaugh
patent: 2757738 (1956-08-01), Ritchey
patent: 3133592 (1964-05-01), Tomberlin
patent: 3170519 (1965-02-01), Haagensen
patent: 4140179 (1979-02-01), Kasevich et al.

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