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Methane Migration Characteristics Of The Pocahontas No. 3 Coalbed
  • Published Date:
    1/1/1972
Filetype[PDF - 713.87 KB]


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  • Description:
    Methane-flow and pressure data taken from a mine in the Pocahontas No. 3 coalbed are compared with flow rates from lump coal obtained in laboratory experiments. From this, it is concluded that the main source of gas is the intact coalbed rather than a "crushed zone" near the working face. The permeability and sorption capacity of the intact coalbed are calculated and gas emission rates are theoretically accounted for.

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