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Mining Publication: Water Infusion of Coalbeds for Methane and Dust Control
Keywords: Coal Faces Methane control Respirable dust level Water infusion
Original creation date: January 1977
Authors: J Cervik, A Sainato, M Deul
Report of Investigations - January 1977
Download PDF Document (1.93 MB)
NIOSHTIC2 Number: 10000079
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8241, 1977 Jan; :1-27
This Bureau of Mines report deals with water infusion of coalbeds, which can control methane emission at face areas during developmental mining and which may sometimes suppress dust. Studies show that water infused into the coalbed flows through the fracture system and displaces the methane in the fractures and prevents migration from the solid coal. Displaced gas migrates away from the face area that has been water infused and enters the return ventilation airways. A gradual decrease in methane emission is observed from the start of infusion until the infused zone is mined through. Depending on the permeability of the coalbed, infusion pressures ranged from 300 to 2,200 lb/in2. Face emissions in the upper Kittanning coalbed were reduced by 89 pct; reductions of 38 to 79 pct were measured in the Pittsburgh coalbed depending on the relationship between the face cleat direction and mining direction. Respirable dust levels were reduced by about 75 pct on a longwall section in the Pocahontas No. 3 Coalbed and by about 50 pct on a development section in the upper Kittanning coalbed, but no statistically reliable reduction was found in the respirable dust levels in the Pittsburgh coalbed.
Image of publication Water Infusion of Coalbeds for Methane and Dust ControlReport of Investigations - January 1977
Download PDF Document (1.93 MB)
NIOSHTIC2 Number: 10000079
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8241, 1977 Jan; :1-27
See Also
Development and Application of Reservoir Models and Artificial Neural Networks for Optimizing Ventilation Air Requirements in Development Mining of Coal Seams
The Effects of Water Spray Placement for Controlling Respirable Dust and Face Methane Concentrations
Evaluation of Face Dust Concentrations at Mines Using Deep-Cutting Practices
Gas Migration Characteristics of Coalbeds
Guidelines for the Control and Monitoring of Methane Gas on Continuous Mining Operations
Impact of Control Parameters on Shearer-Generated Dust Levels
Methane and Dust Control by Water Infusion: Pittsburgh Coalbed (Fairview, W. Va.)
Predicting Methane Emissions from Longer Longwall Faces by Analysis of Emission Contributors
Prediction of Longwall Methane Emissions and the Associated Consequences of Increasing Longwall Face Lengths: A Case Study in the Pittsburgh Coalbed
Remote Methane Sensors
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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