Micellar flooding process for recovering oil from petroleum rese

Details Micellar flooding process for recovering oil from petroleum rese Micellar flooding process for recovering oil from petroleum rese

1976-08-02

1977-07-26

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166270, E21B 4322

Patent

active

040376591

ABSTRACT:
Oil recovery efficiency of tertiary oil recovery processes using a micellar solution as the displacement fluid is improved by injecting a dilute aqueous solution of an alkali metal silicate into the reservoir subsequent to the micellar solution injection and prior to the drive fluid injection. The alkali metal silicate has a M.sub.2 O/SiO.sub.2 ratio of between 1 and 4.

REFERENCES:
patent: 2920041 (1960-01-01), Meadors
patent: 3455386 (1969-07-01), Reisberg
patent: 3500919 (1970-03-01), Holm
patent: 3827496 (1974-08-01), Schroeder
patent: 3876002 (1975-04-01), Sarem
patent: 3882938 (1975-05-01), Bernard
patent: 3920074 (1975-11-01), Sarem

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