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Reservoir engineering considerations for coal seam degasification and methane control in underground coal mines.
Mine Ventilation: Proceedings of the Ninth International Mine Ventilation Congress, New Delhi, India, November 10-13, 2009. Panigrahi DC, ed., New Delhi, India: Oxford & IBH Publishing Co. Pvt. Ltd., 2009 Nov; 1:505-516
Degasification and methane control in underground coal mining is an important area augmenting conventional ventilation in order to prevent possible fires and explosions due to excessive methane emissions. Coal bed reservoir engineering has been applied for many years to coalbed methane production. In recent years, modeling the flow and draining methane, not only from coal bed itself but also from the overlying strata, have been recognized as important areas of expertise for supplementing underground ventilation. This paper demonstrates the applications of coal bed reservoir engineering and modeling techniques for optimizing and controlling methane emissions in longwall and continuous miner sections. Practical applications and some considerations are presented for reservoir modeling, borehole performances, and face emission predictions for various coal bed and borehole configurations. A section on field reservoir studies and well bore log analyses for methane control are also presented as a complementary way of controlling methane and optimizing ventilation.
Coal-gasification; Coal-mining; Combustibility; Combustion-products; Control-technology; Engineering-controls; Explosion-protection; Explosions; Fire-hazards; Fire-prevention; Gas-detectors; Gas-indicators; Heat; Heat-production; Longwall-mining; Mine-seals; Mining-equipment; Mining-industry; Modeling; Underground-mining; Ventilation; Ventilation-systems; Work-environment; Workplace-studies; Author Keywords: Reservoir engineering; coal mining; methane control; degasification
C. Özgen Karacan, NIOSH, Pittsburgh Research Laboratory, P.O. Box 18070, 626 Cochrans Mill Rd. Pittsburgh, PA 15236
Mine Ventilation: Proceedings of the Ninth International Mine Ventilation Congress, New Delhi, India, November 10-13, 2009