In situ process for recovery of carbonaceous materials from subt

Details In situ process for recovery of carbonaceous materials from subt In situ process for recovery of carbonaceous materials from subt

1976-09-07

1978-05-30

Novosad, Stephen J.

Wells

Processes

In situ combustion

166281, 166303, E21B 4324, E21B 4326

Patent

active

040918696

ABSTRACT:
A method is disclosed for recovering carbonaceous material from a subterranean deposit such as oil shale. A first zone of the subterranean deposit is heated to liquefy and vaporize carbonaceous materials contained therein. A substantial portion of the carbonaceous materials are removed from this first zone. Thereafter a second zone of the deposit is rubblized such that material of the second zone occupies a portion of the space occupied by the first zone. The second zone is then heated and carbonaceous materials are removed therefrom.

REFERENCES:
patent: 1913395 (1933-06-01), Karrick
patent: 3113620 (1963-12-01), Hemminger
patent: 3198249 (1965-08-01), Willman
patent: 3342257 (1967-09-01), Jacobs et al.
patent: 3465818 (1969-09-01), Dixon
patent: 3465819 (1969-09-01), Dixon
patent: 3537529 (1970-11-01), Timmerman
patent: 3537753 (1970-11-01), Arendt
patent: 3661423 (1972-05-01), Garret
patent: 3882941 (1975-05-01), Pelofsky
patent: 3980339 (1976-09-01), Heald et al.
patent: 4015664 (1977-04-01), Acheson et al.

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