Mining Publication: Methane Emission in Coal Mines: Effects of Oil and Gas Wells
The method of moving averages was found useful in assessing the nature of methane emission in coal mines. Emission rates were influenced markedly by the presence of abandoned oil and gas wells in the vicinity of the mine. Such wells appeared to increase the flow rate of methane into the mine by a factor of 2 to 30 in an active mine in the Pittsburgh coal seam.
Report of InvestigationsJanuary - 1972
NIOSHTIC2 Number: 10000632
U.S. Department of the Interior, Bureau of Mines. Report of Investigations 7658, NTIS No. PB-211 932, 1972; :1-12