Enhanced hydrocarbon recovery

Details Enhanced hydrocarbon recovery Enhanced hydrocarbon recovery

1987-06-24

1988-11-22

Suchfield, George A.

Wells

Processes

With indicating, testing, measuring or locating

166268, 166271, E21B 4316, E21B 4900

Patent

active

047858826

ABSTRACT:
Hydrocarbons are produced from a subterranean reservoir by maintaining the effective reservoir pressure below the reservoir crushing pressure during a first production period, causing the effective reservoir pressure to exceed the reservoir crushing pressure after such first production period so as to crush the reservoir and reduce the reservoir permeability, and then producing hydrocarbons from the reservoir during a second production period in which hydrocarbon production is enhanced due to better sweep efficiency as a result of the lowered permeability of the reservoir.

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patent: 4091869 (1978-05-01), Hoyer
patent: 4509596 (1985-04-01), Emery
patent: 4548267 (1985-10-01), Sheffield et al.
patent: 4688238 (1987-08-01), Sprunt et al.

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