Oil recovery process using viscosified surfactant solutions

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

1977-10-31

1979-04-10

Guynn, Herbert B.

Compositions

Leather or fur treating

252 85P, 252 855D, 252312, E21B 4322, E21B 4325, C09K 702

Patent

active

041487362

ABSTRACT:
Thioxotropic 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: 2742426 (1956-04-01), Brainerd
patent: 3361313 (1968-01-01), Riggs et al.
patent: 3504744 (1970-04-01), Davis et al.
patent: 3603400 (1971-09-01), Son
patent: 3817871 (1974-06-01), Graff

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