Analyses of geological and hydrodynamic controls on methane emissions experienced in a Lower Kittanning coal mine.

ABSTRACT: This paper presents a study assessing potential factors and migration paths of methane emissions experienced in a room-and-pillar mine in Lower Kittanning coal, Indiana County, Pennsylvania. Methane emissions were not excessive at idle mining areas, but significant methane was measured during coal mining and loading. Although methane concentrations in the mine did not exceed 1% limit during operation due to the presence of adequate dilution airflow, the source of methane and its migration into the mine was still a concern. In the course of this study, structural and depositional properties of the area were evaluated to assess complexity and sealing capacity of roof rocks. Composition, gas content, and permeability of Lower Kittanning coal, results of flotation tests, and geochemistry of gr

SUBMITTER: Karacan CO 

PROVIDER: S-EPMC4608864 | biostudies-literature | 2012 Aug

REPOSITORIES: biostudies-literature