Wells – Processes – Distinct – separate injection and producing wells
Patent
1982-12-22
1984-12-11
Novosad, Stephen J.
Wells
Processes
Distinct, separate injection and producing wells
166272, 166274, E21B 4322, E21B 4324
Patent
active
044872623
ABSTRACT:
A method for the recovery of heavy oil from a subterranean silica-containing oil-containing formation comprising treating the formation with a slug of a hot aqueous solution containing sodium hydroxide and sodium bicarbonate capable of forming in-situ CO.sub.2 and metasilicate followed by injection of a drive fluid to aid in recovering the oil.
REFERENCES:
patent: 1651311 (1927-11-01), Atkinson
patent: 2813583 (1957-11-01), Marx et al.
patent: 3279538 (1966-10-01), Doscher
patent: 3853178 (1974-12-01), Shen
patent: 3871452 (1975-03-01), Sarem
patent: 3880237 (1975-04-01), Snavely, Jr.
patent: 3927716 (1975-12-01), Burdyn et al.
Shu Winston R.
Venkatesan V. N.
Aksman Stanislaus
Gilman Michael G.
McKillop Alexander J.
Mobil Oil Corporation
Novosad Stephen J.
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