Secondary recovery process using brine soluble terpolymers

Details Secondary recovery process using brine soluble terpolymers Secondary recovery process using brine soluble terpolymers

1981-08-06

1983-12-13

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

252 85A, C08F22026, C08F22056, C08F22044

Patent

active

044205988

ABSTRACT:
Hydrocarbons are recovered from a subterranean hydrogen-bearing formation penetrated by an injection well and a production well by displacing hydrocarbons toward the production well using a drive fluid such as water thickened with a terpolymer of acrylamide, acrylonitrile and acrylic acid or a terpolymer of acrylamide, acrylonitrile and acrylic acid alkoxylated with ethylene oxide. If desired, the drive fluid may be saturated with carbon dioxide and/or natural gas at the injection pressure.

REFERENCES:
patent: 2649438 (1953-08-01), Bruson
patent: 3323603 (1967-06-01), Fummus et al.
patent: 3478003 (1969-11-01), McClendon
patent: 3758449 (1973-09-01), Hoppe
patent: 4301016 (1981-11-01), Carriere et al.

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