In-situ process for recovering hydrocarbons from a diatomite-typ

Details In-situ process for recovering hydrocarbons from a diatomite-typ In-situ process for recovering hydrocarbons from a diatomite-typ

1983-03-09

1984-12-04

Novosad, Stephen J.

Wells

Processes

Separating material entering well

166271, 166272, 166273, E21B 4322, E21B 4324, E21B 4340

Patent

active

044858710

ABSTRACT:
An in-situ process for recovering hydrocarbons from a diatomite-type formation which comprises contacting the diatomite formation with a C.sub.4 -C.sub.10 alcohol and thereafter displacing the hydrocarbon-alcohol mixture with an aqueous alkaline solution towards a production well. The aqueous alkaline solution can be displaced with additional solution or another suitable medium such as a connate water drive.

REFERENCES:
patent: 2920041 (1960-01-01), Meadors
patent: 3033288 (1962-05-01), Holm
patent: 3236306 (1966-02-01), Atwood et al.
patent: 3288215 (1966-11-01), Townsend et al.
patent: 3493051 (1970-02-01), Gogarty
patent: 3637018 (1972-01-01), Kelly et al.
patent: 4167470 (1979-09-01), Karnofsky
patent: 4374023 (1983-02-01), Davis
Farouq Ali, "Application of Solvent Slugs in Thermal Recovery Operations", Producers Monthly, Jul. 1965, vol. 29, No. 7, pp. 6-9.

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