Hydraulic fracturing method using viscosified surfactant solutio

Details Hydraulic fracturing method using viscosified surfactant solutio Hydraulic fracturing method using viscosified surfactant solutio

1976-02-02

1977-02-15

Novosad, Stephen J.

Wells

Processes

Placing fluid into the formation

252 855R, 166280, 166307, E21B 4326, E21B 4327

Patent

active

040077926

ABSTRACT:
Thixotropic compositions having initially relatively high viscosity which can decrease with time are prepared by admixing water and chloroform with an anionic surfacant, 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, Jr.
patent: 3361313 (1968-01-01), Riggs, Jr. et al.
patent: 3508612 (1970-04-01), Reisberg et al.
patent: 3587737 (1971-06-01), Tosch
patent: 3603400 (1971-09-01), Son, Jr.
patent: 3613789 (1971-10-01), Son, Jr.
patent: 3734189 (1973-05-01), Gogarty

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