In situ combustion of tar sands with injection of gases

Details In situ combustion of tar sands with injection of gases In situ combustion of tar sands with injection of gases

1981-05-04

1983-08-09

Novosad, Stephen J.

Wells

Processes

In situ combustion

E21B 43243

Patent

active

043973523

ABSTRACT:
In-situ combustion of heavy subterranean oil formations, e.g., tar sands, is improved by introducing into the oil formation a stream of a combustible gas. The stream of gas may contain a small proportion of hydrocarbons condensable at temperature and pressure conditions of the formation. The improvement is applicable to both forward and reverse in-situ combustion processes.

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