Volume 46 Issue 5
Oct.  2018
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GUO Dongxin, WANG Wei, CHENG Lijun, TANG Shuheng, ZHANG Hualian, ZHANG Yuelei. Vertical distribution features of physical properties of coal reservoir in shaft QM-1 of Datong block of Qijiang area[J]. COAL GEOLOGY & EXPLORATION, 2018, 46(5): 102-106. DOI: 10.3969/j.issn.1001-1986.2018.05.016
Citation: GUO Dongxin, WANG Wei, CHENG Lijun, TANG Shuheng, ZHANG Hualian, ZHANG Yuelei. Vertical distribution features of physical properties of coal reservoir in shaft QM-1 of Datong block of Qijiang area[J]. COAL GEOLOGY & EXPLORATION, 2018, 46(5): 102-106. DOI: 10.3969/j.issn.1001-1986.2018.05.016
shu

Vertical distribution features of physical properties of coal reservoir in shaft QM-1 of Datong block of Qijiang area

  • 1. Key Laboratory of Shale Gas Exploration, Ministry of Land and Resources, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China;

  • 2. National and Local Joint Engineering Research Center of Shale Gas Exploration and Development, Chongqing 400042, China;

  • 3. School of Energy Resources, China University of Geosciences(Beijing), Beijing 100083, China

Funds: 

Science and Technology Plan of Chongqing Land Resource and House Administration(KJ-2018026)

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  • Received Date: June 14, 2018
  • Published Date: October 24, 2018
    Graphical Abstract
    • Abstract
  • In order to investigate the potential of coalbed methane development in Datong block with lower degree of coalbed methane exploration, the vertical characteristics of the main coal seams in shaft QM-1 were systematically analyzed with respect to their porestructure and gas content on the basis of mercury intrusion method, isothermal adsorption and gas content tests. The results showed that coal in shaft QM-1 is dominated by thin and medium-thick seams with primary and cataclastic texture. The middle part of the seam M8 refers to the fragmented coal with low-porosity and extra-low-permeability. Pores of the lower part of the seams M8 and M12 are mainly adsorption pore which shows high adsorption capability. Main coal seams in shaft QM-1 have high gas content and in particular seam M8 has saturated adsorption state. The study area generally has a good resource potential and development prospect of coalbed methane. However, it is would be challenging for coalbed methane development because of the diversity and complexity of the main coal seams vertically.
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    • References (21)
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