Degasification study from an air shaft in the Beckley coalbed. Report of investigations/1982
Technical Report
·
OSTI ID:6786407
The Bureau of Mines conducted research to degasify a virgin block of coal in the Beckley Coalbed using long horizontal holes drilled in an array from the bottom of a ventilation air shaft. Eight horizontal holes and an in situ pressure hole were drilled in a radial pattern to depths ranging from 418 to 910 ft (127 to 277 m) and 205 ft (62 m), respectively.
- Research Organization:
- Bureau of Mines, Pittsburgh, PA (USA). Pittsburgh Research Center
- OSTI ID:
- 6786407
- Report Number(s):
- PB-82-255704
- Country of Publication:
- United States
- Language:
- English
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