Drilling a horizontal coalbed methane drainage system from a directional surface borehole

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1982]

Phys. Desc.:

ii, 50 pages : digital, PDF file

Electronic resource

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Prediction of longwall methane emissions : an evaluation of the influence of mining practices on gas emissions and methane control systems

Publisher:

Pittsburgh, Pa. : U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Pittsburgh Research Laboratory [1999]

Phys. Desc.:

32 pages : digital, PDF file

Electronic resource

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Evaluation of alternative placement of longwall gob gas ventholes for optimum performance

Publisher:

[Washington, D.C.?] : U.S. Dept. of the Interior, Bureau of Mines, [1994]

Phys. Desc.:

14 pages : digital, PDF file

Electronic resource

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Direct method determination of the gas content of coal : procedures and results

Publisher:

[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, [1981]

Phys. Desc.:

36 pages : digital, PDF file

Electronic resource

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Use of surface joint and photolinear data for predicting subsurface coal cleat orientation

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1976]

Phys. Desc.:

1 online resource (13 pages)

Electronic resource

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Methods of determining the orientations of bedrock fracture systems in southwestern Pennsylvania and northern West Virginia

Publisher:

[Washington, D.C.?] : U.S. Dept. of the Interior, Bureau of Mines, [1977]

Phys. Desc.:

ii, 35 pages : digital, PDF file

Electronic resource

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