Cavity induced stimulation of coal degasification wells using fo

Details Cavity induced stimulation of coal degasification wells using fo Cavity induced stimulation of coal degasification wells using fo

1994-11-07

1995-12-12

Suchfield, George A.

Wells

Processes

Placing fluid into the formation

1663051, 299 16, E21B 4325, E21B 4326

Patent

active

054741297

ABSTRACT:
An improved method for stimulating coal degasification wells comprising the injection of a foam into a coal seam which contains natural or induced fractures. Thereafter, high pressure gas is injected into the coal seam and suddenly released to cause disintegration of coal surrounding the borehole.

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patent: 5417286 (1995-05-01), Palmer et al.
patent: 5419396 (1995-05-01), Palmer et al.
"Cavity Stress Relief Method to Stimulate Demethanation Boreholes", Alain, et al. SPE/DOE/GRI 12843, presented at the 1984 SPE/DOE/GRI Unconventional Gas Recovery Symposium, Pittsburgh, Pa., May 13-15, 1984.

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