Fluid for recovering hydrocarbons

Details Fluid for recovering hydrocarbons Fluid for recovering hydrocarbons

1978-05-25

1980-05-20

Guynn, Herbert B.

Compositions

Leather or fur treating

252352, 252355, 546172, E21B 4322

Patent

active

042038537

ABSTRACT:
A two-step method for recovering hydrocarbons from a subterranean formation in which in situ combustion is first initiated in the formation by injection of air, for example, through an injection well, the injection of air is terminated and in a final step a combustion-supporting gas such as air, air mixed with oxygen, etc. and a combustible gas such as hydrogen, carbon monoxide and mixtures thereof are introduced into the formation preferably through separate sets of casing perforations and finally hydrocarbons are recovered via a production well.

REFERENCES:
patent: 2793697 (1957-05-01), Simm et al.
patent: 3398793 (1968-08-01), Milton
patent: 3731741 (1973-05-01), Palmer et al.
patent: 3827497 (1974-08-01), Dycus et al.
patent: 4043922 (1977-08-01), Palmer et al.
patent: 4134415 (1979-01-01), Flournoy et al.

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