Reducing Methane Levels in Longwall Gobs.
Proc Longwall USA Conf 1986 Jun; :345-356
A test conducted in the Lower Kittanning coalbed that indicates that up to 71 pct of the methane produced by a mining operation can be captured by a properly designed cross-measure system is described. The number, depth, spacing, and angle of boreholes is detailed, and methane flow at varying points during mining is discussed.
Proc. Longwall USA Conf., June 1986, PP. 345-356