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Mining Publication: Two-Phase Flow in Coalbeds
Keywords: Boreholes Coal mining Computer simulation Degasification Methane
Original creation date: January 1975
Authors: FN Kissell, JC Edwards
Report of Investigations - January 1975
Download PDF Document (0.59 MB)
NIOSHTIC2 Number: 10000735
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8066, 1975 Jan; :1-16
Experimental work by the Bureau of Mines indicates that when a coalbed is degassed by boreholes, the flow of methane may actually increase with time. This phenomenon appears to be the result of a relative permeability effect; that is, the coalbed permeability to the gas increases sharply with decreasing water saturation. This report reviews the background of experimental evidence indicating a relative permeability effect and presents the results of a computer simulation of two-phase flow in coal.
Image of publication Two-Phase Flow in CoalbedsReport of Investigations - January 1975
Download PDF Document (0.59 MB)
NIOSHTIC2 Number: 10000735
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8066, 1975 Jan; :1-16
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
Development and Application of Reservoir Models and Artificial Neural Networks for Optimizing Ventilation Air Requirements in Development Mining of Coal Seams
Historical Development of Technologies for Controlling Methane in Underground Coal Mines
Methane Control by Isolation of a Major Coal Panel - Pittsburgh Coalbed
Methane Drainage: Experience With Hydraulic Stimulation Through Slotted Casing
A Numerical Evaluation on the Effects of Impermeable Faults on Degasification Efficiency and Methane Emissions During Underground Coal Mining
Removing Methane (Degasification) from the Pittsburgh Coalbed in Northern West Virginia
Rotary Drilling Techniques Used in the Beckley Coalbed
Three Coal Mine Gob Degasification Studies Using Surface Boreholes and a Bleeder System
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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