Surfactant waterflooding enhanced oil recovery method using stab

Details Surfactant waterflooding enhanced oil recovery method using stab Surfactant waterflooding enhanced oil recovery method using stab

1980-09-22

1982-03-09

Guynn, Herbert B.

Compositions

Leather or fur treating

166275, E21B 4322

Patent

active

043188168

ABSTRACT:
Surfactant waterflooding in oil formations containing high salinity water, e.g. water whose salinity is in excess of 50,000 part per million total dissolved solids and whose temperatures exceed about 100.degree. to 150.degree. F. is accomplished by injecting into the formation an aqueous solution of an alkylarylpolyalkoxyalkylene sulfonate containing a stabilizing amount of a normally liquid hydrocarbon. The amount of hydrocarbon employed is less than 1% and below the amount which would form a discrete discontinuous hydrocarbon zone, i.e. less than the amount of hydrocarbon which forms a conventional emulsion is employed to stabilize the surfactant-containing solution.

REFERENCES:
patent: 3474865 (1969-10-01), Gogarty et al.
patent: 3506070 (1970-04-01), Jones
patent: 3827496 (1974-08-01), Schroeder
patent: 3977471 (1976-08-01), Gale et al.
patent: 3983940 (1976-10-01), Carpenter

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