A Study on the Occurrence Law of Coal Seam Gas in Shanxi

Abstract:

The thickness of overlaying bedrock is the main control factor of preservation, in addition, magmatic activities, different structural types and hydrogeological conditions are also control factors. Regional magmatic thermometamorphism appeared as a kind of superimposed effect on the background of deep metamorphism. Two Eastwest （EW）metamorphic belts in Shanxi tallied with the distribution of magmatic rock masses, resulting in coal seam gas exploitation and utilization bases of Yangquan and Jincheng mining areas. From gas-accumulation structural setting, closed type structures make high gas content in coal reservoir such as Qinnan, Gujiao, Xingjiashe, Dongshe areas in the Qinshui Basin, Shilou, Daning-Jixian and Sanjiao-Liulin areas in the Hedong Basin, gas content is 10-15 m³/t or even higher. There are convenient channels for coal seam gas effusion in the open structures; with lower gas content, such as Lishi mining area in Hedong Basin, Huoxi structural area in Qinshui Basin, Hunyuan, and Wutai coal districts.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 2244-2250
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.2244
• Online since: November 2012
• Authors: Guang Wu Xue, Hong Fu Liu, Jing Lin Guo
• Keywords: Coal Seam Gas, Occurrence Law, Tectonic and Sedimentary Evolution

References

[1] Bureau of Geological and Mineral Resources of Shanxi Province. Regional Geology of Shanxi Province [M].Beijing: Geological Publishing House. (in Chinese).

[2] Liang Zhang, Resources Evaluation and Exploration of Coal Seam Gas in Shanxi [M]. Taiyuan: Shanxi Economy Press.2007. (in Chinese).

[3] Yiwen Ju, Junjia Fan, jingqiang Tan, etc. The relationship Between Basin-mountain Evolution and Lithosphere Transformation and CBM enrichment in North China [J]. Coal Geology of China. 2009，21(3):1-5，27. (in Chinese).

[4] Heying Sun, Songling Chang. Prevention Technology of Mine Gas [M]. Xuzhou, Jiangsu: China University of Mining & Technology Press, 2009. (in Chinese).

[5] Ziming Zhang. Gas Geology [M].Xuzhou, Jiangsu: China University of Mining & Technology Press, 2009. (in Chinese).