Secondary recovery method

Details Secondary recovery method Secondary recovery method

1982-05-03

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, 526304, C08F 836

Patent

active

044304811

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 or brine, thickened with a copolymer of acrylamide and diacetone acrylamide alkoxylated with an alkylene oxide or glycidol, optionally sulfated or sulfonated. If desired, said drive fluid can be saturated with carbon dioxide, nitrogen, natural gas or mixtures of these gases at the injection pressure.

REFERENCES:
patent: 3277056 (1966-10-01), Coleman
patent: 3578637 (1971-05-01), Coleman
patent: 4297226 (1981-10-01), Hunter

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