Skip directly to search Skip directly to A to Z list Skip directly to navigation Skip directly to page options Skip directly to site content

Mining Publication: Methane Emission Rate Studies in a Central Pennsylvania Mine

Original creation date: January 1971

Image of publication Methane Emission Rate Studies in a Central Pennsylvania Mine

A methane emission rate study was conducted in 1969 on a longwall section of a Lower Kittanning coalbed mine in central Pennsylvania. The longwall face was mined with a drum shearer between developed headings on the head end and headings on the tail end that were driven with a ripper-type continuous miner as needed. The study was conducted over 22 consecutive shifts (7-1/3 days). The average methane emission rate from the Lower Kittanning coalbed during mining at the face and developing the headings at the tail end of the face was 34 cfm. Caving of the gassy overlying strata as the result of mining at the face increased the methane emission to rates ranging from 702 to 1,049 cfm.

Authors: S Krickovic, C Findlay

Report of Investigations - January 1971

NIOSHTIC2 Number: 10000616

Pittsburgh, PA: U.S. Department of the Interior, Bureau of Mines, No. PB-206359, RI 7591, 1971 Jan; :1-9 NTIS