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Comparisons between cross-measure boreholes and surface gob holes

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

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

Campoli, A. A. (Alan A.)
[Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines, [1983] 1983

Degasification of the Mary Lee coalbed, Brookwood, Ala.

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

Degasification study from an air shaft in the Beckley coalbed

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

Horizontal trajectories of rotary-drilled holes

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

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

Garcia, F. (Fred)
[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1985] 1985

Methane drainage study using an underground pipeline, Marianna mine 58

Prosser, L. J. (Leonard J.)
[Pittsburgh, Pa.?] : U.S. Dept. of the Interior, Bureau of Mines, [1981] 1981

Rotary drilling holes in coalbeds for degasification

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

Underground gob gas drainage during longwall mining

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

Water in fusion : an effective and economical longwall dust control

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