Enhanced oil recovery using carbon dioxide

Details Enhanced oil recovery using carbon dioxide Enhanced oil recovery using carbon dioxide

1984-10-22

1986-09-02

Novosad, Stephen J.

Wells

Processes

Distinct, separate injection and producing wells

166274, 252 8554, E21B 4322

Patent

active

046090436

ABSTRACT:
An enhanced oil recovery process in which carbon dioxide is injected into the oil-bearing formation under supercritical conditions to act as a solvent for the oil. Mobility of the carbon dioxide is controlled by the use of a dissolved polymer whose solubility is enhanced by the use of an entrainer comprising a polar organic compound such as an alcohol or a glycol.

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