Process for secondary recovery

Details Process for secondary recovery Process for secondary recovery

1982-03-22

1984-02-07

Michl, Paul R.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

252 855D, C08F 836

Patent

active

044304820

ABSTRACT:
Hydrocarbons are recovered from a subterranean hydrocarbon-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 polyacrylamide or partially hydrolyzed polyacrylamide alkoxylated with an alkylene oxide and, if desired, a small amount of a sulfated, alkoxylated polyacrylamide, i.e., an N-substituted polyacrylamide having N-substituents of the formula:

REFERENCES:
patent: 4297226 (1981-10-01), Hunter

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