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Mining Publication: Methane Emission Rate Study in a Deep Pocahontas No. 3 Coalbed Mine in Conjunction With Drilling Degasification Holes in the Coalbed
Keywords: Gas emissions Horizontal boreholes Methane Rates
Original creation date: January 1972
Authors: S Krickovic, JD Kalasky
Report of Investigations - January 1972
Download PDF Document (0.54 MB)
NIOSHTIC2 Number: 10000619
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 7703, 1972 Jan; :1-12
A degasification experiment was conducted in a Pocahontas No. 3 Coalbed mine in Virginia. It involved (1) drilling holes in the coalbed in the outside headings of a set of five being developed in virgin area and (2) conducting a methane emission rate study as mining progressed and additional holes were drilled. Degasification from all drill holes except the longest in each of the outside headings and the first three drilled (excluding the in situ pressure hole) was erratic and inconsequential in methane emission rates. The two longest holes liberated 66 and 79 cfm of methane, which is significant for the coalbed, but such quantity lasted a relatively short time; the first three were uniform but low in methane emission.
Image of publication Methane Emission Rate Study in a Deep Pocahontas No. 3 Coalbed Mine in Conjunction With Drilling Degasification Holes in the CoalbedReport of Investigations - January 1972
Download PDF Document (0.54 MB)
NIOSHTIC2 Number: 10000619
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 7703, 1972 Jan; :1-12
See Also
Methane Absorption in Oil Shale and Its Potential Mine Hazard
Methane Control by Isolation of a Major Coal Panel - Pittsburgh Coalbed
Methane Diffusion Parameters for Sized Coal Particles: A Measuring Apparatus and Some Preliminary Results
Methane Emission in Coal Mines: Effects of Oil and Gas Wells
Methane Emission Rate Studies in a Central Pennsylvania Mine
Methane Emission Rate Studies in a Northern West Virginia Mine
Methane Migration Characteristics of the Pocahontas No. 3 Coalbed
Modeling and Prediction of Ventilation Methane Emissions of U.S. Longwall Mines Using Supervised Artificial Neural Networks
Reservoir Rock Properties of Coal Measure Strata of the Lower Monongahela Group, Greene County (Southwestern Pennsylvania), from Methane Control and Production Perspectives
Technology News 465 - Method for Predicting Methane Emissions on Extended Longwall Faces
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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