Oil recovery process using viscosified surfactant

Details Oil recovery process using viscosified surfactant Oil recovery process using viscosified surfactant

1976-09-30

1978-01-31

Guynn, Herbert B.

Compositions

Leather or fur treating

166274, 166275, 252 85A, 252 85C, 252 855R, 252 855C, E21B 4322, E21B 4326, C09K 702

Patent

active

040714578

ABSTRACT:
Thixotropic compositions having initially relatively high viscosity which can decrease with time are prepared by admixing water and chloroform with an anionic surfactant, a cationic surfactant, an acid to adjust the pH of the aqueous phase to 4.5 or less, and a buffer salt. These compositions are valuable drilling fluids, fracturing fluids, and surfactant fluids for chemical flooding in tertiary oil recovery.

REFERENCES:
patent: 3361313 (1968-01-01), Riggs et al.
patent: 3504744 (1970-04-01), Davis et al.
patent: 3508612 (1970-04-01), Reisberg et al.
patent: 3587737 (1971-06-01), Tosch

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