Thermal barriers for enhanced oil recovery

Details Thermal barriers for enhanced oil recovery Thermal barriers for enhanced oil recovery

1989-11-16

1991-01-15

Suchfield, George A.

Wells

Processes

In situ combustion

166270, 166272, 166288, 166295, 166303, E21B 33138, E21B 4324, E21B 43243

Patent

active

049846353

ABSTRACT:
A process is described to direct heat towards a productive interval of a reservoir during a thermal enhanced oil recovery (EOR) operation. A chemical composition suitable for producing a rigid polymer foam is injected above or below the productive interval. Once in place the temperature of the composition is increased and it reacts to produce a foamed polymer thermal barrier. The temperature can be increased by steam injection or in-situ combustion. After a rigid foam is formed, thermal efficiency is increased by reducing heat losses to non-producing zones during a thermal stimulation.

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