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National Institute for Occupational Safety and Health National Institute for Occupational Safety and Health
National Institute for Occupational Safety and Health

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  • Sorption investigations of methane on coal
    Filetype[PDF - 984.50 KB]
    Personal Author:
    Perkins, John H. ; Cervik, Joseph ;
    Corporate Authors:
    United States. Bureau of Mines. ; United States. Bureau of Mines. Methane Control Program. ;
    Published Date:
    May 1969
    Series:
    Bureau of Mines technical progress report ; TPR 14
    Description:
    "The Bureau of Mines has conducted desorption work on fine coal particles at near atmospheric pressure. An apparatus has been developed that uses a ca...
    File Type:
    Filetype[PDF - 984.50 KB]
    File Type:
    Filetype[PDF - 984.50 KB]
  • Use of vertical boreholes for assisting ventilation of longwall gob areas
    Filetype[PDF - 796.51 KB]
    Personal Author:
    Elder, Curtis H.
    Corporate Authors:
    United States. Bureau of Mines. ; United States. Bureau of Mines. Methane Control Program. ;
    Published Date:
    May 1969
    Series:
    Bureau of Mines technical progress report ; TPR 13
    Description:
    An experimental degasification program using a vertical borehole and vacuum pump to drain gas from the gob area of a longwall panel was successful at ...
    File Type:
    Filetype[PDF - 796.51 KB]
    File Type:
    Filetype[PDF - 796.51 KB]
  • Gas migration characteristics of coalbeds
    Filetype[PDF - 999.04 KB]
    Personal Author:
    Hadden, J. D. ; Sainato, Albert ;
    Corporate Authors:
    United States. Bureau of Mines. ; United States. Bureau of Mines. Methane Control Program. ;
    Published Date:
    May 1969
    Series:
    Bureau of Mines technical progress report ; TPR 12
    Description:
    "The Bureau of Mines conducted drilling studies in the Pocahontas No. 3, the Pittsburgh , and a western coalbed to establish the gas migration charact...
    File Type:
    Filetype[PDF - 999.04 KB]
    File Type:
    Filetype[PDF - 999.04 KB]
  • Behavior of coal-gas reservoirs
    Filetype[PDF - 1021.29 KB]
    Personal Author:
    Cervik, Joseph
    Corporate Authors:
    United States. Bureau of Mines. ; United States. Bureau of Mines. Methane Control Program. ;
    Published Date:
    April 1969
    Series:
    Bureau of Mines technical progress report ; TPR 10
    Description:
    "Gas occurs in coalbeds in an adsorbed and a free gas state. Adsorbed gas is stored in the micropore structure and its transport is governed by Fick's...
    File Type:
    Filetype[PDF - 1021.29 KB]
    File Type:
    Filetype[PDF - 1021.29 KB]