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U.S. Department of Energy
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Geological factors affecting methane in the Beckley coalbed. Report of investigations 1976

Technical Report ·
OSTI ID:7117597
The study area includes portions of Fayette, Raleigh, and Wyoming Counties, in southern West Virginia, where five underground coal mines are presently working in the Beckley coalbed. The Beckley coalbed is being developed in the deeper parts of its basin of deposition; earlier development was hindered by irregular coal thickness and increasing methane emission with depth. Initial desorption tests of coal cores and mine methane emissions in the new mines indicate a high methane content, especially as mining deepens. Because the structure and stratigraphy of the Beckley coalbed control the migration and retention of methane, geologic maps were constructed from core logs and mine data. These maps include the coalbed structure, coal thickness, overburden thickness, mined-out coal areas, and lithology above and below the Beckley. Surface joints were measured and are presented on a quadrangle basis. Cleat directions in the five mines were also measured, and the relation of the joints to the coal cleat is examined. (GRA)
Research Organization:
Bureau of Mines, Pittsburgh, PA (USA). Pittsburgh Mining and Safety Research Center
OSTI ID:
7117597
Report Number(s):
PB-254186; BM-RI-8137
Country of Publication:
United States
Language:
English