Method of coalbed methane production
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United States of America Patent
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-
Nov 28, 1989
Grant Date -
N/A
app pub date -
Sep 27, 1988
filing date -
Sep 27, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of producing coalbed methane by injecting 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.
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