Local geology and hydrology effects promoting methane emissions in an Indiana Co., Pennsylvania coal mine.
Proceedings of the 29th Annual International Pittsburgh Coal Conference, October 15 - 18, 2012, Pittsburgh, Pennsylvania. Pittsburgh, PA: University of Pittsburgh, 2012 Oct; :654-667
Abandoned mines are not likely cause of emissions during mining &bull Coal has enough permeability but is water saturated. Thus, gas can escape only during mining &bull Calculated gas in place and specific emissions suggest that GIP of only Lower Kittanning coal should result in lower specific emissions &bull Groundwater level and its correlogram analyses indicated that general flow direction was towards the southeast and the active workings. &bull Modeling the water head indicated that it was high enough to include all Allegheny Group formations within the saturated zone. &bull Computations of flow gradients showed that the groundwater flows towards Yellow Creek and Two Lick Creek as discharge locations in this region.
Mining-industry; Geology; Methane-control; Methane-drainage; Mine-gases; Underground-mining; Coal-mining
Proceedings of the 29th Annual International Pittsburgh Coal Conference, October 15 - 18, 2012, Pittsburgh, Pennsylvania