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HE 20.7131:7649
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Methane migration characteristics of the Pocahontas no. 3 coalbed |
1 |
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HE 20.7131:7657
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Effect of a surface borehole on longwall gob degasification (Pocahontas No. 3 Coalbed) |
1 |
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HE 20.7131:7658
|
Methane emission in coal mines effects of oil and gas wells |
1 |
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HE 20.7131:7667
|
The methane migration and storage characteristics of the Pittsburgh, Pocahontas no. 3, and Oklahoma Hartshorne coalbeds |
1 |
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HE 20.7131:7668
|
An in-situ diffusion parameter for the Pittsburgh and Pocahontas No. 3 coalbeds |
1 |
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HE 20.7131:7697
|
Methane diffusion parameters for sized coal particles a measuring apparatus and some preliminary results |
1 |
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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 |
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HE 20.7131:7762
|
The composition of coalbed gas |
1 |
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HE 20.7131:7767
|
The direct method of determining methane content of coalbeds for ventilation design |
1 |
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HE 20.7131:7768
|
Gases desorbed from five coals of low gas content |
1 |
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HE 20.7131:7769
|
Geologic factors causing roof instability and methane emission problems the Lower Kittaning coalbed, Cambria County, Pa |
1 |
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HE 20.7131:7790
|
Methane control by isolation of a major coal panel Pittsburgh coalbed |
1 |
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HE 20.7131:7800
|
Degasification of virgin Pittsburgh coalbed through a large borehole |
1 |
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HE 20.7131:7805
|
Bleeder system in virgin area in a Pittsburgh coalbed mine |
1 |
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HE 20.7131:7849
|
Methane and dust controls for longwalls Pocahontas no. 3 coalbed, Grundy, Va |
1 |
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HE 20.7131:7885
|
Peak methane concentrations during coal mining an analysis |
1 |
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HE 20.7131:7910
|
Cleat in bituminous coalbeds |
1 |
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HE 20.7131:7916
|
Using sulfur hexafluoride as a gaseous tracer to study ventilation systems in mines |
1 |
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HE 20.7131:7917
|
Tracer gas as an aid in mine ventilation analysis |
1 |
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HE 20.7131:7965
|
Low-temperature evolution of hydrocarbon gases from coal |
1 |