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Mining Publication: Commercial-Quality Gas From a Multipurpose Borehole Located in the Pittsburgh Coalbed
Keywords: Boreholes Gases Horizontal boreholes
Original creation date: January 1975
Authors: HH Fields, JH Perry, M Deul
Report of Investigations - January 1975
Download PDF Document (0.98 MB)
NIOSHTIC2 Number: 10000665
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8025, 1975 Jan; :1-14
This report describes a multipurpose borehole used for both degasification and the production of commercial-quality gas. The multipurpose borehole was drilled into a barrier pillar, and seven horizontal degasification holes and one pressure point hole were drilled radially out from its perimeter. This study indicates that horizontal boreholes drilled into a coalbed from the bottom of any shaft will effectively remove gas from the Pittsburgh coalbed.
Image of publication Commercial-Quality Gas From a Multipurpose Borehole Located in the Pittsburgh CoalbedReport of Investigations - January 1975
Download PDF Document (0.98 MB)
NIOSHTIC2 Number: 10000665
Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8025, 1975 Jan; :1-14
See Also
Cableless Electronic Surveying Systems for Horizontal Holes
Comparison of Rotary and In-Hole Motor Techniques for Drilling Horizontal Boreholes in Coal
Demonstration of Remote Mine Seal Construction
Detecting Strata Fracturing and Roof Failures from a Borehole Based Microseismic System
Effects of Stimulation Treatments on Coalbeds and Surrounding Strata: Evidence from Underground Observations
Gas Sorption and Transport in Coals: A Poroelastic Medium Approach
In-Mine Test of the Bureau of Mines Preproduction Wireless Survey System
The Limiting Oxygen Concentration and Flammability Limits of Gases and Gas Mixtures
Reconciling Longwall Gob Gas Reservoirs and Venthole Production Performances Using Multiple Rate Drawdown Well Test Analysis
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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