Geological and Gas-Content Features of Coalbed Methane System in Qinshui Basin, Shanxi

Abstract:

Colabed methane system is a natural system that consists of coal seams, coalbed methane in them and surrounding rocks. As an unconventional natural gas, reservoir and conservation of coalbed methane are different from those of conventional hydrocarbon. The Qinshui Basin, covering an area about 30,000sq.km in southeastern Shanxi Province, has abundant coalbed methane resources in the carboniferous Taiyuan formation and permian Shanxi formation, with an in-situ methane resource 3.3×10¹² m³.In this study, the structural deformation and tectonic evolution of coalbed methane system in Qinshui basin were reported. Relationships between structural deformation and the formation of coalbed methane reservoir in Qinshui Basin were also discussed. The results show that Yangquan-Shouyang area in the north part of the basin and Tunliu-Xiangyuan area in the east are favorable for formation coalbed methane system. In contrast, Jincheng-Qinshui area in the south part of basin and the Qinyuan area in the middle of basin are favorable for both the formation of coalbed methane reservoirs and high yields as well.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 1187-1191
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.1187
• Online since: May 2012
• Authors: Ya Hui Jia, Xiao Ping Xie, Ai Li Lu
• Keywords: Coalbed Methane System, Geological and Gas-Content Feature, Qinshui Basin

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