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Mining Publication: Influence of Overlying Strata on Methane Emissions in a Northern West Virginia Coal Mine
Keywords: Coal mining Gas emissions Methane Methane control Sandstone 
 West Virginia
Original creation date: January 1984
Authors: JP Ulery, GM Molinda
Report of Investigations - January 1984
Download PDF Document (0.93 MB)
NIOSHTIC2 Number: 10003953
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8879, 1984 Jan; :1-14
Since 1970, abnormally high methane emissions have been observed in eastern sections of the Federal No. 2 Mine operating in the Pittsburgh coalbed in northern West Virginia. The nature and volume of these emissions indicate a source other than the coalbed. An investigation was undertaken to delineate probable methane sources. Gas well information and stratigraphic correlation of corehole data indicate that a sandstone directly above the main coalbed is an additional source of methane emissions. The sandstone body appears to be an ancient stream channel, infilled with fine-grained sand and organic matter. Coalification of the organic matter produced methane as a byproduct. Additional methane presumably migrated into the sandstone unit from the subjacent coalbeds. The methane became trapped in the porous clastic unit by the surrounding impermeable strata. Mine development near this unit creates a significant pressure gradient, triggering abnormal methane emissions into the mine along naturally occurring fractures. Predevelopment methane drainage of the sandstone could be accomplished by completing vertical boreholes along its trend.
Image of publication Influence of Overlying Strata on Methane Emissions in a Northern West Virginia Coal MineReport of Investigations - January 1984
Download PDF Document (0.93 MB)
NIOSHTIC2 Number: 10003953
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8879, 1984 Jan; :1-14
See Also
Development and Application of Reservoir Models and Artificial Neural Networks for Optimizing Ventilation Air Requirements in Development Mining of Coal Seams
Guidelines for the Control and Monitoring of Methane Gas on Continuous Mining Operations
Managing Excess Gas Emissions Associated with Coal Mine Geologic Features
Methane Control by Isolation of a Major Coal Panel - Pittsburgh Coalbed
Methane Emission Rate Studies in a Northern West Virginia Mine
Methane Emissions from Four Working Places in the Beckley Mine, Raleigh County, W. Va.
Modeling and Prediction of Ventilation Methane Emissions of U.S. Longwall Mines Using Supervised Artificial Neural Networks
Remote Methane Sensors
Reservoir Rock Properties of Coal Measure Strata of the Lower Monongahela Group, Greene County (Southwestern Pennsylvania), from Methane Control and Production Perspectives
Rotary Drilling Techniques Used in the Beckley Coalbed
Page last reviewed: September 21, 2012
Page last updated: September 21, 2012
Content source: National Institute for Occupational Safety and Health, Mining Program
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