Thermal recovery method

Details Thermal recovery method Thermal recovery method

1974-09-23

1976-11-16

Purser, Ernest R.

Wells

Processes

In situ combustion

166272, E21B 4324

Patent

active

039918289

ABSTRACT:
A method for recovering low gravity viscous crude oil or bitumen from a subterranean formation comprising first injecting super heated steam, next initiating an in situ combustion by injecting air, followed by an in situ combustion wherein both super heated steam and air are injected, then simultaneously performing an in situ combustion by injecting air while also injecting water and finally injecting water.

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patent: 3208519 (1965-09-01), Moore
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patent: 3409077 (1968-11-01), Durie
patent: 3411578 (1968-11-01), Holmes
patent: 3563312 (1971-02-01), Zwicky
patent: R27252 (1971-12-01), Sklar et al.

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