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Mining Publication: Hydraulic Stimulation Increases Degasification Rate of Coalbeds
Keywords: Boreholes Coal mining Degasification
Original creation date: January 1975
Authors: CH Elder, M Deul
Report of Investigations - January 1975
Download PDF Document (0.79 MB)
NIOSHTIC2 Number: 10000668
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8047, 1975 Jan; :1-17
Coal degasification boreholes drilled from the surface have been successfully hydraulically stimulated to increase the flow of gas from the coal. This Bureau of Mines report describes the hydraulic stimulation procedure for a coalbed, the equipment required, and design criteria for the treatment. Three examples of stimulation treatment show from fivefold to twentyfold increases in gas production. The tests were conducted in the Pocahontas No. 3 Coalbed, Buchanan County, Virginia, the Pittsburgh coalbed, Washington County, Pennsylvania, and the Mary Lee coalbed, Jefferson County, Alabama. Two sites where the coal was hydraulically stimulated and exposed by subsequent mining show no adverse effect on mining operations through the treated zones. The induced vertical partings were confined to the coalbed and did not in any way affect either roof or floor rock.
Image of publication Hydraulic Stimulation Increases Degasification Rate of CoalbedsReport of Investigations - January 1975
Download PDF Document (0.79 MB)
NIOSHTIC2 Number: 10000668
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8047, 1975 Jan; :1-17
See Also
A CART Technique to Adjust Production from Longwall Coal Operations under Ventilation Constraints
Coal Mine Methane: A Review of Capture and Utilization Practices with Benefits to Mining Safety and to Greenhouse Gas Reduction
Degasification and Production of Natural Gas From an Air Shaft in the Pittsburgh Coalbed
Effects of Stimulation Treatments on Coalbeds and Surrounding Strata: Evidence from Underground Observations
Methane Control by Isolation of a Major Coal Panel - Pittsburgh Coalbed
Rotary Drilling Holes in Coalbeds for Degasification
Rotary Drilling Techniques Used in the Beckley Coalbed
Three Coal Mine Gob Degasification Studies Using Surface Boreholes and a Bleeder System
Two-Phase Flow in Coalbeds
Use of Vertical Boreholes for Assisting Ventilation of Longwall Gob Areas
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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