Method of coalbed methane production

Details Method of coalbed methane production Method of coalbed methane production

E - Fixed Constructions

21

B

166/33

E21B 43/24 (2006.01) E21B 43/00 (2006.01) E21B 43/16 (2006.01) E21B 43/30 (2006.01) E21B 43/40 (2006.01)

Patent

CA 1317872

ABSTRACT A method of producing coalbed methane by inject- ing inert gas, such as nitrogen, through an injection well into the coal seam and recovering coalbed methane from a production well(s). Methane desorption from coal is achieved by reduction in methane partial pressure rather than by reduction in total pressure alone. 89174ART0188

605297

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