In-situ combustion method for recovery of oil and combustible ga

Wells – Processes – In situ combustion

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166267, 299 2, E21B 43243, E21B 4334

Patent

active

044549164

ABSTRACT:
A method for recovering oil by injecting an oxygen-containing gas containing at least 50 vol. % oxygen into the formation to initiate an in-situ combustion operation, separately producing oil and a flue gas from the formation, and separating carbon dioxide from the flue gas to produce a combustible gas.

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patent: 4384614 (1983-05-01), Justheim

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