Call Number (LC) Title Results
HE 20.7131:6326 Removing methane (degasification) from the Pocahontas no. 4 coalbed in southern West Virginia 1
HE 20.7131:7591 Methane emission rate studies in a central Pennsylvania mine 1
HE 20.7131:7640 Methane and dust control by water infusion Pittsburgh coalbed (Fairview, W. Va.) / 1
HE 20.7131:7649 Methane migration characteristics of the Pocahontas no. 3 coalbed 1
HE 20.7131:7657 Effect of a surface borehole on longwall gob degasification (Pocahontas No. 3 Coalbed) 1
HE 20.7131:7658 Methane emission in coal mines effects of oil and gas wells / 1
HE 20.7131:7667 The methane migration and storage characteristics of the Pittsburgh, Pocahontas no. 3, and Oklahoma Hartshorne coalbeds 1
HE 20.7131:7668 An in-situ diffusion parameter for the Pittsburgh and Pocahontas No. 3 coalbeds 1
HE 20.7131:7697 Methane diffusion parameters for sized coal particles a measuring apparatus and some preliminary results / 1
HE 20.7131:7703 Methane emission rate study in a deep Pocahontas No. 3 coalbed mine in conjunction with drilling degasification holes in the coalbed 1
HE 20.7131:7762 The composition of coalbed gas 1
HE 20.7131:7767 The direct method of determining methane content of coalbeds for ventilation design by F.N. Kissell, C.M. McCulloch, and C.H. Elder. 1
HE 20.7131:7768 Gases desorbed from five coals of low gas content 1
HE 20.7131:7769 Geologic factors causing roof instability and methane emission problems the Lower Kittaning coalbed, Cambria County, Pa. / 1
HE 20.7131:7790 Methane control by isolation of a major coal panel Pittsburgh coalbed / 1
HE 20.7131:7800 Degasification of virgin Pittsburgh coalbed through a large borehole 1
HE 20.7131:7805 Bleeder system in virgin area in a Pittsburgh coalbed mine 1
HE 20.7131:7849 Methane and dust controls for longwalls Pocahontas no. 3 coalbed, Grundy, Va. / 1
HE 20.7131:7885 Peak methane concentrations during coal mining an analysis / 1
HE 20.7131:7910 Cleat in bituminous coalbeds 1