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3 results returnedEffect of a surface borehole on longwall gob degasification(Pocahontas No. 3 Coalbed)
Bleeder system in virgin area in a Pittsburgh coalbed mine
Longwall gob degasification with surface ventilation boreholes above the Lower Kittanning coalbed
Published Year
Subject
- Methane (3) *
- Mine ventilation (3)
- Boring (1)
- Coal mines and mining--West Virginia (1)
- Firedamp (1)
- Mine gases--West Virginia (1)
Author
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