Method for stimulating methane production from coal seams

Details Method for stimulating methane production from coal seams Method for stimulating methane production from coal seams

1992-03-13

1993-10-05

Suchfield, George A.

Wells

Processes

Placing fluid into the formation

166281, 1663051, E21B 4312, E21B 43267

Patent

active

052496279

ABSTRACT:
The present invention provides a method for treating coal seams to improve dewatering to enhance gas production therefrom. The treatment is effected by contacting the coal with an effective amount of a selected additive comprises at least one member selected from the group consisting of benzyl coco di-(hydroxyethyl) quaternary amine, p-T-amyl-phenol condensed with formaldehyde and a copolymer comprising from about 80 to about 100% C.sub.1-30 alkyl methacrylate monomers and from about 0 to about 20% hydrophilic monomers.

REFERENCES:
patent: 4471840 (1984-09-01), Lasseter et al.
patent: 4558741 (1985-12-01), Borchardt et al.
patent: 4679630 (1987-07-01), Wyman
patent: 4913237 (1990-04-01), Kutas
patent: 4995463 (1991-02-01), Kramm et al.
patent: 5080170 (1992-01-01), Whitebay et al.

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