Abstract
Pingxiang Mining Area in Jiangxi Province is one of the major coal-producing areas and is prone to serious coal and gas outburst, therefore, it is of significance to research on gas geological features and its controlling factors. Based on the analysis of gas data collected from geological exploration and coal mining, the research reveals that the features of gas geology vary significantly between west part and east part of Pingxiang Mining Area, and it is characterized by high gas mines with serious coal and gas outburst in the west part and low gas mines with no coal and gas outburst in the east part. The main controlling factors to gas geology are discussed, and the great difference of gas geology between west part and east part is the result of comprehensive effect by geological factors. Concerning the gas generation, the coal rank in the west part is higher than that in the east part, which is favorable to generate more gas in the west part than in the east part. Concerning the gas preservation, the structures are characterized by gliding nappe in the west part and by tectonic window in the east part, the surrounding rocks are characterized by poor permeability in the west part and comparatively good permeability in the east part, and the characteristics of coal rank and coal body structure are favorable to gas preservation in the west part and favorable to gas emission in the east part.
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References
Chen W H, Peng H Q, 2005. Probe into depositional characteristics and environment of late Triassic Anyuan coal measures, Jiangxi Province. Coal Geology of China, 17(4): 3–5.
Chen W H, Wang Y Y, 2009. Existing problems and countermeasures of gas prevention at Juyuan Coal Mine. Jiangxi Coal Science and Technology, 31(4): 11–12.
Hu Q X, 2002. Shiliwan-Dajiangbian gravitational sliding structure in Pingxiang Mining Area and prospect of coal resources. Jiangxi Coal Science and Technology, 24(1): 32–34.
Jiangxi Provincial Bureau of Geology and Mineral Resources, 1984. Regional geology of Jiangxi Province. Beijing: Geological Publishing House.
Liu X Y, 2003. Mesozoic-Cenozoic tectonic character and it’s geological meaning in Pingxiang, Jiangxi Province. Geological Survey and Research, 26(4): 233–240.
Liu X Y, Zhong D H, Wu F J, Xie Q H, 2003. Features of extensional structure in the north margin of Huanan Plate (Pingxiang section in Jiangxi Province). Resources Survey and Environment, 24(1): 51–56.
Liu X Y, Zhong D H, Yuan J Y, Xie Q H, Li Y C, 2004. Tectonic characteristics in the Pingxiang area of the junction belt between the Yangtze Plate and South China Plate. Journal of Geomechanics, 10(4): 372–379.
Qin Y, Fu X H, Ye J P, Lin D Y, Tang S H, Li G Z, 1999. Geological controls and their mechanisms of coal-reservoir petrography and physics of coalbed methane occurrence in China. Journal of China University of Mining and Technology, 28(1): 14–19.
Tan X D, Yang R F, Mo S X, Liu X H, 2009. Study of coal-controlled structures in Pingxiang Mining Area, Jiangxi province. Hunan Geology, 20(3): 168–171.
The State Administration of Work Safety, 2009. Regulations of coal and gas outburst prevention. Beijing: China Coal Industry Publishing House.
Xie J Z, Peng C X, Shuai Q, Ouyang D H, 2001. Discussion about gas occurrence regularity and their main effecting factors in Pingxiang Mining Area. //New progress of gas geology (Zhang Z X, Zhang Z M, Luo K S, eds.). Zhengzhou: Henan Science and Technology Press, 10–15.
Yan J P, Wu J W, 1995. Formation and evolution of the late Triassic sedimentary basin in the western Jiangxi Province. Anhui Geology, 5(1): 32–37.
Yan J P, Wu J W, Zhang W H, Chen Z P, 1995. Development and tectonic setting of the Anyuan coal measures in central Jiangxi Province. Lithofacies and Paleogeography, 15(4): 36–42.
Zhang X P, Peng G C, Zhu Y Z, 2010. Gas pressure determination of W482 Working Area at Qingshan Coal Mine. Jiangxi Coal Science and Technology, 32(3): 57–58.
Zhang Z M, 2009. Gas geology. Xuzhou: China University of Mining and Technology Press.
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Supported by the National Natural Science Foundation of China (41172138); the Special Fund Project of Jiangxi Energy Bureau (20100730)
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Zhao, Zg., Yan, Jp. & Liu, X. Features of gas geology and its main controlling factors in Pingxiang mining area, Jiangxi Province. J Coal Sci Eng China 18, 271–275 (2012). https://doi.org/10.1007/s12404-012-0308-4
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DOI: https://doi.org/10.1007/s12404-012-0308-4