Viscous oil recovery

Details Viscous oil recovery Viscous oil recovery

1984-08-20

1986-05-20

Suchfield, George A.

Wells

Processes

In situ combustion

166272, 166274, E21B 4322, E21B 4324, E21B 43243

Patent

active

045894876

ABSTRACT:
A method of recovering oil from a subterranean, viscous oil-containing formation comprising injecting into the formation an aqueous solution of at least one salt of carbonic acid, and then recovering the oil from the formation by means of a drive means.

REFERENCES:
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patent: 3036632 (1962-05-01), Koch et al.
patent: 3091292 (1963-05-01), Kerr
patent: 3221813 (1965-12-01), Closmann et al.
patent: 3251412 (1966-05-01), Cooke, Jr. et al.
patent: 3532165 (1970-10-01), Raifsnider
patent: 3731741 (1973-05-01), Palmer et al.
patent: 4068716 (1978-01-01), Allen
patent: 4083404 (1978-04-01), Allen
patent: 4124071 (1978-11-01), Allen et al.
patent: 4325433 (1982-04-01), Yen et al.
patent: 4333529 (1982-06-01), McCorquodale
"A Current Appraisal of Thermal Recovery", Journal of Petroleum Technology, Michael Prats, Aug. 1978, pp. 1129-1136.

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