Abstract
Focused on the Klinkenberg effect on gas seepage, the independently developed triaxial experimental system of gas seepage was applied to conduct research on the seepage characteristics of coal seam gas. By means of experimental data analysis and theoretical derivation, a calculation method of coal seam gas permeability was proposed, which synthesized the respective influences of gas dynamic viscosity, compressibility factor and Klinkenberg effect. The study results show that the Klinkenberg effect has a significant influence on the coal seam gas seepage, the permeability estimated with the method considering the Klinkenberg effect is correct, and this permeability can fully reflect the true seepage state of the gas. For the gas around the standard conditions, the influences of dynamic viscosity and compressibility factor on the permeability may be ignored. For the gas deviating far away from the standard conditions, the influences of dynamic viscosity and compressibility factor on the permeability must be considered. The research results have certain guiding significance in forming a correct understanding of the Klinkenberg effect and selecting a more accurate calculation method for the permeability of coal containing gas.
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References
KLINDENBERG L J. The permeability of porous media to liquids and gases [J]. API Drilling and Production Practices, 1941, 2: 200–213.
LIN Bai-quan. Discussion on gas-containing coal permeability [J]. Safety in Coal Mines, 1988, 12: 15–20. (in Chinese)
ZHOU Shi-ning, LIN Bai-quan. The theory of gas flow and storage in coal seam [M]. Beijing: China Coal Industry Publishing House, 1997: 38–40. (in Chinese)
CAO Shu-gang, LI Yong, GUO Ping, BAI Yan-jie, LIU Yan-bao, XU Jian. Effect of gas pressure on gas seepage of outburst coal [J]. Journal of China Coal Society, 2010, 35(4): 595–599. (in Chinese)
WANG Deng-ke, WEI Jian-ping, WEN Zhi-hui. Permeability characteristics of gas-bearing coal under different stress paths [J]. Disaster Advance, 2013, 6(Special 2): 289–294.
WEI Jian-ping, WANG Deng-ke, YAO Bang-hua. Influence of moisture content on the seepage characteristics of gas-bearing coal [J]. Disaster Advance, 2013, 6(Special 2): 282–288.
YIN Guang-zhi, JIANG Chang-bao, XU Jiang, GUO Li-sha, PENG Shou-jian, LI Wen-pu. An experimental study on the effects of water content on coalbed gas permeability in ground stress fields [J]. Disaster Advance, 2012, 94(1): 87–99.
HUANG Gun, Yin Guang-zhi, LI Xiao-shuang. Effect of gas pressure on the transport properties of outburst-prone coal [J]. Disaster Advances, 2011, 4(3): 20–23.
FU Xue-hai, LI Da-hua, QIN Yong, JIANG Bo, WANG Wen-feng, LI Gui-zhong. Experimental research of influence of coal matrix shrinkage on permeability [J]. Journal of China University of Mining & Technology, 2002, 31(2): 129–137. (in Chinese)
PENG Shou-jian, XU Jiang, YIN Guang-zhi, JIAN Chang-bao, YANG Hong-wei. Experimental analysis of matrix shrinkage’s influence on mechanical permeability of gas-filled coal [J]. Journal of Chongqing University, 2012, 35(5): 109–114. (in Chinese)
CHEN Wei-zhong, YANG Jian-ping, WU Guo-jun, TAN Xian-jun, DAI Yong-hao, YU Hong-dan. Experimental study on permeability in low permeability media [J]. Chinese Journal of Rock Mechanics and Engineering, 2008, 27(2): 236–243. (in Chinese)
HU Guo-zhong, WANG Hong-tu, FAN Xiao-gang, YUAN Zhi-gang. Investigation on law of methane gas flow in coal with coal-gas outburst hazard and low permeability [J]. Chinese Journal of Rock Mechanics and Engineering, 2009, 28(12): 2527–2534. (in Chinese)
WANG Gang, CHENG Wei-min, GUO Heng, LONG Qing-ming. Study on permeability characteristics of coal body with gas pressure variation [J]. Journal of Mining & Safety Engineering, 2012, 29(5): 735–740. (in Chinese)
YUAN Mei, HE Ming-hua, WANG Zhen, XU Shi-qing, CHEN Bo. Preliminary study on model of methane permeability coupling on stress and temperature field with rigidity coefficient [J]. Coal Technology, 2012, 31(7): 214–216. (in Chinese)
WU Y S, PRUESS K, PERSOFF P. Gas flow in porous media with Klinkenberg effects [J]. Transport in Porous Media, 1998, 32(1): 117–37.
TANIKAWA W, SHIMAMOTO T. Comparison of Klinkenberg-corrected gas permeability and water permeability in sedimentary rocks [J]. International Journal of Rock Mechanics & Mining Science, 2009, 46(2): 229–238.
KONG Xiang-yan. Advanced mechanics of fluids in porous media [M]. Hefei: University of Science and Technology of China Press, 2010: 341–344. (in Chinese)
YIN Guang-zhi, JIANG Chang-bao, XU Jiang, PENG Shou-jian, LI Wen-pu. Experimental study of influences for water content in coalbed gas reservoirs on methane seepage [J]. Chinese Journal of Rock Mechanics and Engineering, 2011, 30(Supp. 2): 3401–3406. (in Chinese)
WANG Deng-ke, WEI Jian-ping, YIN Guang-zhi. Investigation on change rule of permeability of coal containing under complex stress paths [J]. Chinese Journal of Rock Mechanics and Engineering, 2012, 31(2): 303–310. (in Chinese)
WU Yu-lin, LIU Shu-hong. Viscous Fluid Mechanics [M]. Beijing: China Water & Power Press, 2007: 9–12. (in Chinese)
CHEN Mao-zhang. Fundamentals of viscous fluid dynamics [M]. Beijing: Higher Education Press, 2002: 11–13. (in Chinese)
FU Jian-hua, CHENG Yuan-ping. Situation of coal and gas outburst in China and control countermeasures [J]. Journal of Mining & Safety Engineering, 2007, 24(3): 253–259. (in Chinese)
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Foundation item: Projects(51104059, 51204067) supported by the National Natural Science Foundation of China; Project(2012CB723103) supported the National Basic Research Program of China; Project(IRT1235) supported by Innovation Team Development Plan of the Ministry of Education of China; Project(2013M531674) supported by China Postdoctoral Science Foundation; Project(132300413203) supported by Basic and Frontier Technology Research Program of Henan Province, China; Project(WS2012B07) supported by the Open Project of State Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan Polytechnic University), China
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Wang, Dk., Wei, Jp., Fu, Qc. et al. Seepage law and permeability calculation of coal gas based on Klinkenberg effect. J. Cent. South Univ. 22, 1973–1978 (2015). https://doi.org/10.1007/s11771-015-2717-1
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DOI: https://doi.org/10.1007/s11771-015-2717-1