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Mining Publication: Commercial-Quality Gas From a Multipurpose Borehole Located in the Pittsburgh Coalbed

Original creation date: January 1975

Image of publication Commercial-Quality Gas From a Multipurpose Borehole Located in the Pittsburgh Coalbed

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.

Authors: HH Fields, JH Perry, M Deul

Report of Investigations - January 1975

  • 0.98 MB

NIOSHTIC2 Number: 10000665

Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, RI 8025, 1975 Jan; :1-14


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