Nanoscale Pores in Coal Related to Coal Rank and Deformation Structures

详细信息    查看全文

• 作者：Jienan Pan (1) (2)
  Yanqing Zhao (1) (2)
  Quanlin Hou (3) (4)
  Yi Jin (1) (2)
  
  1. School of Resources and Environment ; Henan Polytechnic University ; Jiaozuo ; 454000 ; China
  2. The Collaborative Innovation Center for Coalbed Methane and Shale Gas ; Henan Polytechnic University ; Jiaozuo ; 454000 ; China
  3. Key Lab of Computational Geodynamics ; Chinese Academy of Sciences ; Beijing ; 100049 ; China
  4. College of Earth Sciences ; University of Chinese Academy of Sciences ; Beijing ; 100049 ; China
  
• 关键词：Nanoscale pore ; Tectonically deformed coal ; Normal structure coal ; Coal rank ; Deformation structure
• 刊名：Transport in Porous Media
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：107
• 期：2
• 页码：543-554
• 全文大小：346 KB
• 参考文献：1. Bustin, RM, Clarkson, CR (1998) Geological controls on coalbed methane reservoir capacity and gas content. Int. J. Coal Geol. 38: pp. 3-26 CrossRef
  2. Cai, JL, Tang, DZ, Xu, H, Li, S, Chen, ZL, Tao, S, Zhao, XL (2011) Pore characteristics and controlling factors of Upper Permian coal in wesern Guizhou. Coal Geol. Explor. 39: pp. 6-10
  3. Cai, YD, Liu, DM, Pan, ZJ, Yao, YB, Li, JQ, Qiu, YK (2013) Pore structure and its impact on CH4 adsorption capacity and flow capability of bituminous and subbituminous coals from Northeast China. Fuel 103: pp. 258-268 CrossRef
  4. Carman, PC (1956) Flow of Gases Through Porous Media. Academic Press Inc, New York City
  5. Ding, SL, Zhu, JG, Zhen, BP, Liu, ZY, Liu, QF (2011) Characteristics of high rank coalbed methane reservoir from the Xiangning Mining Area, Eastern Ordos Basin, China. Energy Explor. Exploit. 29: pp. 33-48 CrossRef
  6. Feng, HA, Cheng, YP, Wu, DM, Wang, L (2013) The effect of small micropores on methane adsorption of coals from Northern China. Adsorption 19: pp. 83-90 CrossRef
  7. G眉rdal, G, Yal莽谋n, MN (2001) Pore volume and surface area of the Carboniferous coals from the Zonguldak basin (NW Turkey) and their variations with rank and maceral composition. Int. J. Coal Geol. 48: pp. 133-144 CrossRef
  8. Hou, QL, Li, HJ, Fan, JJ, Ju, YW, Wang, TK, Li, XS, Wu, YD (2012) Structure and coalbed methane occurrence in tectonically deformed coals. Sci. China Earth Sci. 55: pp. 1755-1763 CrossRef
  9. Jiang, B, Qin, Y, Ju, YW, Wang, JL, LI, M (2009) The coupling mechanism of the evolution of chemical structure with the characteristics of gas of tectonic coals. Earth Sci. Front. 16: pp. 262-271
  10. Jiang, WP, Song, XZ, Zhong, LW (2011) Research on the pore properties of different coal structure coals and the effects on gas outburst based on the low-temperature nitrogen adsorption method. J. China Coal Soc. 36: pp. 609-614
  11. Ju, YW, Jiang, Bo, Hou, QL, Wang, GL (2005) Relationship between nano-scale deformation of coal structure and metamorphic-deformed environments. Chin. Sci. Bull. 50: pp. 1785-1796 CrossRef
  12. Ju, YW, Jiang, Bo, Hou, QL, Tan, YJ, Wang, GL, Xiao, WJ (2009) Behavior and mechanism of the adsorption /desorption of tectonically deformed coals. Chin. Sci. Bull. 54: pp. 88-94 CrossRef
  13. Li, HY, Ogawa, Y (2001) Pore structure of sheared coals and related coalbed methane. Env. Geol. 40: pp. 1455-1461 CrossRef
  14. Li, HY, Ogawa, Y, Shimada, S (2003) Mechanism of methane flow through sheared coals and its role on methane recovery. Fuel 82: pp. 1271-1279 CrossRef
  15. Li, XS, Ju, YW, Hou, QL, Lin, H (2012) Spectra response from macromolecular structure evolution of tectonically deformed coal of different deformation mechanisms. Sci. China Earth Sci. 55: pp. 1269-1279 CrossRef
  16. Mastalerz, M, Drobniak, A, Str膮po膰, D, Solano, AW, Rupp, J (2008) Variations in pore characteristics in high volatile bituminous coals: implications for coal bed gas content. Int. J. Coal Geol. 76: pp. 205-216 CrossRef
  17. Meng, ZP, Zhang, JC, Wang, R (2011) In-situ stress, pore pressure and stress-dependent permeability in the Southern Qinshui Basin. Int. J. Rock Mech. Min. Sci. 48: pp. 122-131 CrossRef
  18. Pan, JN, Hou, QL, Ju, YW, Bai, HL, Zhao, YQ (2012) Coalbed methane sorption related to coal deformation structures at different temperatures and pressures. Fuel 102: pp. 760-765 CrossRef
  19. Prinz, D, Pyckhout-Hintzen, W, Littke, R (2004) Development of the meso- and macroporous structure of coals with rank as analysed with small angle neutron scattering and adsorption experiments. Fuel 83: pp. 547-556 CrossRef
  20. Prinz, D, Littke, R (2005) Development of the micro- and ultramicroporous structure of coals with rank as deduced from the accessibility to water. Fuel 84: pp. 1645-652
  21. Qu, ZH, Wang, GG, Jiang, B, Rudolph, V, Dou, XZ, Li, M (2010) Experimental study on the porous structure and compressibility of tectonized coals. Energy Fuels 24: pp. 2964-2973 CrossRef
  22. Sakurovs, R, He, LL, Melnichenko, YB, Radlinski, AP, Blach, T, Lemmel, H, Mildner, DFR (2012) Pore size distribution and accessible pore size distribution in bituminous coals. Int. J. Coal Geol. 100: pp. 51-64 CrossRef
  23. Tang, SH, Cai, C, Zhu, BC, Duan, LJ, Zhan, JZ (2008) Control effect of coal metamorphic degree on physical properties of coal reservoirs. Nat. Gas Ind. 28: pp. 31-33
  24. Xue, GW, Liu, HF, Li, W (2012) Deformed coal types and pore characteristics in Hancheng coalmines in Eastern Weibei coalfields. Int. J. Min. Sci. Technol. 22: pp. 681-686 CrossRef
  25. Zhang, JC, Standifird, W, Roegiers, JC, Zhang, Y (2007) Stress-dependent permeability in fractured media: from lab experiments to engineering applications. Rock Mech. Rock Eng. 40: pp. 3-21 CrossRef
  26. Zhang, SH, Tang, SH, Tang, DZ, Pan, ZJ, Yang, F (2012) The characteristics of coal reservoir pores and coal facies in Liulin district, Hedong coal field of China. Int. J. Coal Geol. 81: pp. 117-127 CrossRef
  27. Zhou, LG, Wu, CF (2012) Pore characteristics of the main coal seams in Bide-Santang basin in Western Guizhou Province. J. China Coal Soc. 37: pp. 1878-1884
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Geotechnical Engineering
  Industrial Chemistry and Chemical Engineering
  Civil Engineering
  Hydrogeology
  Mechanics, Fluids and Thermodynamics
  
• 出版者：Springer Netherlands
• ISSN：1573-1634

文摘

Experimental results show that nanoscale pores in coal are affected by coal rank and deformation structures. In terms of pore volume, the transitional pores occupy the largest proportion, and in terms of specific surface area, the sub-micropores take up the largest proportion. For weak brittle deformed coal (including normal structured coal), when the coal rank increases, the volume and specific surface area of pores in different sizes firstly decrease and then increase. The volume and specific surface area of transitional pores and micropores in coal reach the minimum at about \({R}_\mathrm{O, ran} = 2.0\,\%\) . After that, a slow increasing trend is observed. The volume of sub-micropores reaches the minimum at about \({R}_\mathrm{O, ran}= 1.5\,\%\) and then shows a trend of rapid growth as coal rank increases. As the degree of coal deformation increases, both pore volume and specific surface area have a significant increase. Under strong tectonic deformation, both the volume and total specific surface area of the nanoscale pores and of sub-micropores increase significantly; the volume of transitional pores increases moderately, and their specific surface area shows a decreasing trend; the volume and specific surface area increments of micropores decline rapidly as the degree of metamorphism increases.