Method for recovering hydrocarbons

Details Method for recovering hydrocarbons Method for recovering hydrocarbons

1978-02-13

1979-07-24

Novosad, Stephen J.

Wells

Processes

In situ combustion

166274, E21B 4322, E21B 4324

Patent

active

041619811

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 fluid which is preferably water containing a small amount of a sulfonated interfacial tension reducer is injected into the formation whereby the fluid is heated as it passes through the hot formation and finally hydrocarbons are recovered via a production well.

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patent: 3153448 (1964-10-01), Dew et al.
patent: 3294167 (1966-12-01), Vogel
patent: 3731741 (1973-05-01), Palmer et al.
patent: 3799263 (1974-03-01), Prillieux et al.
patent: 4071458 (1978-01-01), Allen

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