Recovering hydrocarbons with a mixture of carbon dioxide and tri

Details Recovering hydrocarbons with a mixture of carbon dioxide and tri Recovering hydrocarbons with a mixture of carbon dioxide and tri

1990-12-24

1992-06-02

Suchfield, George A.

Wells

Processes

Separating material entering well

166267, 166268, 166274, E21B 4322, E21B 4340

Patent

active

051179075

ABSTRACT:
The invention is a method of recovering petroleum hydrocarbons from an underground formation penetrated by at least one injection well and at least one production well, which comprises injecting through an injection well a mixture of carbon dioxide and about 0.1% to about 20% by weight trichloroethane at a temperature and pressure above the bubble point of the mixture, and recovering hydrocarbons and other fluids at a production well.

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patent: 4299286 (1981-11-01), Alston
patent: 4454914 (1984-06-01), Watanabe
patent: 4800957 (1989-01-01), Stevens, Jr. et al.
patent: 4828029 (1989-05-01), Irani

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