Volume 36 Issue 4
Aug.  2008
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LI Shu-gang, ZHANG Tian-jun, CHEN Zhan-qing, LI Yu-shou. Experiment research on the permeability of gas-rich coal[J]. COAL GEOLOGY & EXPLORATION, 2008, 38(4): 8-11.
Citation: LI Shu-gang, ZHANG Tian-jun, CHEN Zhan-qing, LI Yu-shou. Experiment research on the permeability of gas-rich coal[J]. COAL GEOLOGY & EXPLORATION, 2008, 38(4): 8-11.
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Experiment research on the permeability of gas-rich coal

  • 1. School of Energy, Xi'an University of Science and Technology; Xi'an 710054, China;

  • 2. Dept. of Basic Courses, Xi'an University of Science and Technology; Xi'an 710054, China;

  • 3. School of Science, China University of Mining and Technology, Xuzhou 221008, China

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  • Received Date: January 07, 2008
  • Available Online: March 10, 2023
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    • Abstract
  • The coal deformation,density and fluid penetrating regularity in multi-fractures are the key problems in gas-rich coal development.The mechanical media properties,micro-structural model,permeability,and fractal characteristics of porous cracks and fragmentation of gas-rich coal-rocks are discussed.Electro-hydraulic servo tests of complete stress-strain process of coal samples are conducted by using the electro-hydraulic servo controlled rock mechanics testing system and the numerically controlled transient permeability method.The varying charac-teristics of coal sample permeability are studied.The tests reveal that the mechanical properties of coal are related to micro-structure,micro-porosity property,and the permeability is related to fractures variation.
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