Method for increasing methane recovery from a subterranean coal

Details Method for increasing methane recovery from a subterranean coal Method for increasing methane recovery from a subterranean coal

1996-01-31

1998-06-23

Suchfield, George A.

Wells

Processes

Separating material entering well

166267, 166268, 1662721, 1662722, 166263, E21B 4317, E21B 4324, E21B 4334

Patent

active

057691657

ABSTRACT:
A method for increasing the production of methane from a subterranean coal formation penetrated by an injection well and a production well by producing methane from the coal formation via the production well; passing a portion of the methane to a synthesis gas generation zone wherein at least a portion of the methane is reacted with an oxygen-containing gas to produce a mixture of carbon monoxide and hydrogen; passing a major portion of the mixture to a hydrocarbon synthesis zone wherein the carbon monoxide and hydrogen are reacted to produce heavier hydrocarbons and a tail gas comprising nitrogen and carbon dioxide; separating a major portion of the tail gas from the hydrocarbons and recovering the hydrocarbons as a product stream; injecting at least a portion of the tail gas into the coal formation through the injection well. The methane may be obtained from a single well or a plurality of wells operated to produce the methane by a huff and puff process.

REFERENCES:
patent: 4043395 (1977-08-01), Every et al.
patent: 4098339 (1978-07-01), Weisz et al.
patent: 4114688 (1978-09-01), Terry
patent: 4242103 (1980-12-01), Rabo et al.
patent: 4537252 (1985-08-01), Puri et al.
patent: 4662439 (1987-05-01), Puri et al.
patent: 4662443 (1987-05-01), Puri et al.
patent: 4747642 (1988-05-01), Gash et al.
patent: 4756367 (1988-07-01), Puri et al.
patent: 4762543 (1988-08-01), Pantermucehl et al.
patent: 4765407 (1988-08-01), Yuvancic
patent: 4833170 (1989-05-01), Agee
patent: 4883122 (1989-11-01), Puri et al.
patent: 4913237 (1990-04-01), Kutas
patent: 4973453 (1990-11-01), Agee
patent: 4993491 (1991-02-01), Palmer et al.
patent: 5014785 (1991-05-01), Puri et al.
patent: 5014788 (1991-05-01), Puri et al.
patent: 5048328 (1991-09-01), Puri
patent: 5085274 (1992-02-01), Puri et al.
patent: 5099921 (1992-03-01), Puri et al.
patent: 5133406 (1992-07-01), Puri
patent: 5332036 (1994-07-01), Shirley et al.
patent: 5388640 (1995-02-01), Puri et al.
patent: 5388641 (1995-02-01), Yee et al.
patent: 5388642 (1995-02-01), Puri et al.
patent: 5388643 (1995-02-01), Yee et al.
patent: 5388645 (1995-02-01), Puri et al.
patent: 5417286 (1995-05-01), Puri et al.
patent: 5419396 (1995-05-01), Palmer et al.
patent: 5439054 (1995-08-01), Chaback et al.
patent: 5454666 (1995-10-01), Chaback et al.
patent: 5494108 (1996-02-01), Palmer et al.
patent: 5501273 (1996-03-01), Puri
patent: 5566755 (1996-10-01), Seidle et al.
SPE 20732 paper entitled "Enhanced Coalbed Methane Recovery", R. Puri and D. Yee, presented at the 65th Annual Technical Conference and Exhibition of the Society of Petroleum Engineers, New Orleans, LA, Sep. 23-26, 1990.
"Multicomponent high-pressure adsorption equilibria on carbon substrates: theory and date", Fluid Phase Equilibria, 78 (1992) 99-137 pgs.; Elsevier Science Publishers, B.V., Amsterdam.

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