Methane control on longwalls with cross-measure boreholes (Lower Kittanning coalbed)

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1985]

Phys. Desc.:

17 pages : digital, PDF file

Electronic resource

Click for online content.

Horizontal trajectories of rotary-drilled holes

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1988]

Phys. Desc.:

11 pages : digital, PDF file

Electronic resource

Click for online content.

Comparisons between cross-measure boreholes and surface gob holes

Publisher:

[Pittsburg, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1986]

Phys. Desc.:

14 pages : digital, PDF file

Electronic resource

Click for online content.

Control of longwall gob gas with cross-measure boreholes (upper Kittanning coalbed)

Publisher:

[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, [1983]

Phys. Desc.:

17 pages : digital, PDF file

Electronic resource

Click for online content.

Water in fusion : an effective and economical longwall dust control

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1983]

Phys. Desc.:

1 online resource (14 pages)

Electronic resource

Click for online content.

Underground gob gas drainage during longwall mining

Publisher:

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

Phys. Desc.:

1 online resource (14 pages)

Electronic resource

Click for online content.

Degasification study from an air shaft in the Beckley coalbed

Publisher:

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

Phys. Desc.:

19 pages : digital, PDF file

Electronic resource

Click for online content.

Methane drainage study using an underground pipeline, Marianna mine 58

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1981]

Phys. Desc.:

xii, 29 pages : digital, PDF file

Electronic resource

Click for online content.

Rotary drilling holes in coalbeds for degasification

Publisher:

[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1975]

Phys. Desc.:

1 online resource (21 pages)

Electronic resource

Click for online content.

Degasification of the Mary Lee coalbed, Brookwood, Ala

Publisher:

[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, [1982]

Phys. Desc.:

13 pages : digital, PDF file

Electronic resource

Click for online content.