Stimulation of coalbed methane production

Details Stimulation of coalbed methane production Stimulation of coalbed methane production

1993-05-03

1995-11-28

Tucker, Philip

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

166307, E21B 4327

Patent

active

054708230

ABSTRACT:
A coalbed formation is stimulated to improve the recovery of methane which involves injecting into the coalbed formation an aqueous acid solution containing an organic amphoteric tertiary ammonium compound having from 1 to 3 tertiary ammonium groups, each N of which contains at least one C.sub.3 to C.sub.4 unsaturated carboxylic acid group, and wherein the compound contains a terminal benzyl or C.sub.5 -C.sub.19 alkyl group.

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patent: 4993491 (1991-02-01), Palmer et al.
patent: 5033550 (1991-07-01), Johnson et al.
patent: 5058425 (1991-10-01), Davis, Jr. et al.
patent: 5249627 (1993-10-01), Harms et al.
patent: 5322630 (1994-06-01), Williams et al.

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