基于LBM方法的裂隙煤岩应力–应变过程中渗流特性研究#br#

doi:10.13722/j.cnki.jrme.2019.0675

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Abstract In order to study the seepage characteristics of loaded fractured coal，the three-dimensional fracture field used for LBM numerical simulation was reconstructed by the industrial CT and image processing technology，and the CT scanning and seepage experiments of loaded coal at different loading stages were carried out. The results show that the average error of LBM simulation results is 18.72%，which is in good agreement with the test results，indicating that the LBM simulation has good accuracy and effectiveness. The accuracy of LBM simulation results is related to the development degree of cracks in coal. The more cracks develop，the better the connectivity is and the more accurate the LBM simulation results are. The permeability of fractured coal is closely related to the compression and expansion of internal fracture field. The permeability of coal decreases continuously in the compaction stage and the elastic deformation stage while increases in the late elastic deformation stage and the yield deformation stage，and reaches the maximum in the pressure relief failure stage after the peak strength. The study results verify the feasibility of LBM numerical simulation in describing the permeability of fractured coal，and provide a reliable way for visualization research on the internal gas flow mechanism，flow law and coal seam gas extraction process of loaded fractured coal in the future.

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	WANG Dengke1
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	YU Chong1
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	WEI Jianping1
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	WEI Qiang1
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	FU Jianhua1
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WANG Dengke1,2,3, et al. Seepage characteristics of loaded fractured coal based on LBM Method#br#[J]. , 2020, 39(4): 695-704.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2019.0675 OR https://rockmech.whrsm.ac.cn/EN/Y2020/V39/I4/695

[1] 何建华，丁文龙，姚佳利. 非常规油气储层裂缝识别方法与表征[M]. 北京：地质出版社，2015：1–2.(HE Jianhua，DING Wenlong，YAO Jiali. Study of fracture identification methods and characteristics on unconventional oil and gas reservoirs[M]. Beijing：Geology Press，2015：1–2.(in Chinese))
[2] 尹光志，蒋长宝，许江，等. 深部煤与瓦斯开采中固–液–气耦合作用机理及实验研究[M]. 北京：科学出版社，2012：3–4.(YIN Guangzhi，JIANG Changbao，XU Jiang，et al. Mechanism and experimental study of solid-liquid-gas coupling in deep coal and gas mining[M]. Beijing：Science Press，2012：3–4.(in Chinese))
[3] 孙四清，张群，闫志铭，等. 碎软低渗高突煤层井下长钻孔整体水力压裂增透工程实践[J]. 煤炭学报，2017，42(9)：2 337–2 344. (SUN Siqing，ZHANG Qun，YAN Zhiming，et al. Practice of permeability enhancement through overall hydraulic fracturing of long hole in outburst-prone soft crushed coal seam with low permeability[J]. Journal of China Coal Society，2017，42(9)：2 337–2 344.(in Chinese))
[4] 龙威成，赵乐凯，陈冬冬，等. 顺煤层定向长钻孔水力压裂煤层增透技术及试验研究[J]. 河南理工大学学报：自然科学版，2019，38(3)：10–15.(LONG Weicheng，ZHAO Lekai，CHEN Dongdong，et al. Experimental study on coal seam permeability enhancement by directional long borehole hydraulic fracturing along seam direction[J]. Journal of Henan Polytechnic University：Natural Science，2019，38(3)：10–15.(in Chinese))
[5] 马海峰，程志恒，张科学，等. 千米深井高瓦斯煤层W-S-W水力压裂强化增透试验研究[J]. 煤炭学报，2017，42(7)：1 757–1 764. (MA Haifeng，CHENG Zhiheng，ZHANG Kexue，et al. Intensive permeability enhancement experiment through hydraulic fracturing by way of water-sand-water in kilometer deep well with high gas seam[J]. Journal of China Coal Society，2017，42(7)：1 757–1 764.(in Chinese))
[6] LIU Y L，XU H，TANG D，et al. The impact of the coal macrolithotype on reservoir productivity，hydraulic fracture initiation and propagation[J]. Fuel，2019，239：471–483.
[7] 郭照立，郑楚光. 格子Boltzmann方法的原理及应用[M]. 北京：科学出版社，2009：29–30.(GUO Zhaoli，ZHENG Chuguang. Theory and applications of lattice Boltzmann method[M]. Beijing：Science Press，2009：29–30.(in Chinese))
[8] 滕桂荣，谭云亮，高明. 基于lattice Boltzmann方法对裂隙煤体中瓦斯运移规律的模拟研究[J]. 岩石力学与工程学报，2007，36(增1)：3 503–3 508.(TENG Guirong，TAN Yunliang，GAO Ming. Simulation of gas seepage in fissured coal based on lattice Boltzmann method[J]. Chinese Journal of Rock Mechanics and Engineering，2007，36(Supp.1)：3 503–3 508.(in Chinese))
[9] 滕桂荣，谭云亮，高明，等. 基于LBM方法的裂隙煤体内瓦斯抽放的模拟分析[J]. 煤炭学报，2008，33(8)：914–919.(TENG Guirong，TAN Yunliang，GAO Ming，et al. Simulation of gas drainage in fissured coal based on lattice Boltzmann method[J]. Journal of China Coal Society，2008，33(8)：914–919.(in Chinese))
[10] 田智威，谭云亮，刘兆霞. 含裂隙煤体瓦斯渗流规律的LBM数值模拟[J]. 煤炭学报，2013，38(8)：1 376–1 380.(TIAN Zhiwei，TAN Yunliang，LIU Zhaoxia. Numerical simulation of coal gas seepage in fractured coal by LBM[J]. Journal of China Coal Society，2013，38(8)：1 376–1 380.(in Chinese))
[11] 谭云亮，尹延春，滕桂荣，等. 基于Lattice Boltzmann方法的瓦斯渗流模拟研究[J]. 煤炭学报，2014，39(8)：1 446–1 454.(TAN Yunliang，YIN Yanchun，TENG Guirong，et al. Simulation research of gas seepage based on lattice Boltzmann method[J]. Journal of China Coal Society 2014，39(8)：1 446–1 454.(in Chinese))
[12] 浦海，倪宏阳，肖成. 基于格子Boltzmann理论的弱胶结裂隙岩体水沙两相流特性[J]. 煤炭学报，2017，42(1)：162–168.(PU Hai，NI Hongyang，XIAO Cheng. Characteristics of water sediment two phase flows in weakly cemented fractured rock mass based on lattice Boltzmann method[J]. Journal of China Coal Society，2017，42(1)：162–168.(in Chinese))
[13] 邓守春，左鸿，李海波，等. 地应力作用下水力裂缝中支撑剂导流能力的数值模拟研究[J]. 煤炭学报，2017，42(增2)：434–440. (DENG Shouchun，ZUO Hong，LI Haibo，et al. Numerical investigation of flow conductivity of propping agent in hydraulic fracture under in-situ stresses[J]. Journal of China Coal Society，2017，42(Supp.2)： 434–440.(in Chinese))
[14] 赵志刚，张永波，赵同彬，等. 基于格子Boltzmann的煤岩渗透率研究方法[J]. 煤矿安全，2016，47(4)：30–34.(ZHAO Zhigang，ZHANG Yongbo，ZHAO Tongbin，et al. A research method for coal and rock permeability based on lattice Boltzmann method[J]. Safety in Coal Mines，2016，47(4)：30–34.(in Chinese))
[15] ERDINC E，SERHAT A. Lattice Boltzmann Simulation of Fluid Flow in Synthetic Fractures[J]. Transport in Porous Media，2006，65(3)：363–384.
[16] 张磊，姚军，孙海，等. 利用格子Boltzmann方法计算页岩渗透率[J]. 中国石油大学学报：自然科学版，2014，38(1)：87–91. (ZHANG Lei，YAO Jun，SUN Hai，et al. Permeability calculation in shale using lattice Boltzmann method[J]. Journal of China University of Petroleum：Natural Science，2014，38(1)：87–91.(in Chinese))
[17] 王晨晨，姚军，杨永飞，等. 基于格子玻尔兹曼方法的碳酸盐岩数字岩心渗流特征分析[J]. 中国石油大学学报：自然科学版，2012，36(6)：94–98.(WANG Chenchen，YAO Jun，YANG Yongfei，et al. Percolation properties analysis of carbonate digital core based on lattice Boltzmann method[J]. Journal of China University of Petroleum：Natural Science，2012，36(6)：94–98.(in Chinese))
[18] 杨永飞，刘志辉，姚军，等. 基于叠加数字岩心和孔隙网络模型的页岩基质储层孔隙空间表征方法[J]. 中国科学：技术科学，2018，48(5)：488–498.(YANG Yongfei，LIU Zhihui，YAO Jun，et al. Pore space characterization method of shale matrix formation based on superposed digital rock and pore-network model[J]. Scientia Sinica Technologica，2018，48(5)：488–498.(in Chinese))
[19] LI C F，FANG Y，JU Y W. Three-dimensional reconstruction of coal¢s microstructure using randomly packing-sphere and pore-growing and lattice boltzmann method[J]. Journal of Nanoscience and Nanotechnology，2017，17(9)：6 867–6 872.
[20] ZHAO Y L，WANG Z M，YE J P，et al. Lattice Boltzmann simulation of gas flow and permeability prediction in coal fracture networks[J]. Journal of Natural Gas Science and Engineering，2018，53：153–162.
[21] GAO J F，XING H L，TURNER L，et al. Pore-scale numerical investigation on chemical stimulation in coal and permeability enhancement for coal seam gas production[J]. Transport in Porous Media，2017，116(1)：335–351.
[22] JU Y，WANG J B，GAO F，et al. Lattice-Boltzmann simulation of microscale CH4 flow in porous rock subject to force-induced deformation[J]. Chinese Science Bulletin，2014，59(26)：3 292–3 303.
[23] CHEN Z Q，YANG Z M，WANG M R. Hydro-mechanical coupled mechanisms of hydraulic fracture propagation in rocks with cemented natural fractures[J]. Journal of Petroleum Science and Engineering，2018，163：421–434.
[24] WILDENSCHILD D，SHEPPARD A P. X-ray imaging and analysis techniques for quantifying pore-scale structure and processes in subsurface porous medium systems[J]. Advances in Water Resources，2013，51：217–246.
[25] 王晨晨，姚军，杨永飞，等. 基于CT扫描法构建数字岩心的分辨率选取研究[J]. 科学技术与工程，2013，13(4)：1 049–1 052. (WANG Chenchen，YAO Jun，YANG Yongfei，et al. Study on resolution selection for digital rock construction with CT scanning method[J]. Science Technology and Engineering，2013，13(4)：1 049– 1 052.(in Chinese))
[26] 张钦刚. 煤岩粗糙裂隙结构渗流性质的实验与LBM模拟研究[博士学位论文][D]. 北京：中国矿业大学，2016.(ZHANG Qingang. LBM–based numerical study and experimental investigation on the permeation behavior in fractured coal rock[Ph. D. Thesis][D]. Beijing：China University of Mining and Technology，2016.(in Chinese))
[27] 王登科，张平，浦海，等. 温度冲击下煤体裂隙结构演化的显微CT实验研究[J]. 岩石力学与工程学报，2018，37(10)：2 243–2 252. (WANG Dengke，ZHANG Ping，PU Hai，et al. Experimental research on cracking process of coal under temperature variation with industrial micro-CT[J]. Chinese Journal of Rock Mechanics and Engineering，2018，37(10)：2 243–2 252.(in Chinese))
[28] 王登科，张平，刘淑敏，等. 温度冲击下煤层内部孔缝结构演化特征实验研究[J]. 煤炭学报，2018，43(12)：3 395–3 403.(WANG Dengke，ZHANG Ping，LIU Shumin，et al. Experimental study on evolutionary characteristics of pore-fissure structure in coal seam under temperature impact[J]. Journal of China Coal Society，2018，43(12)：3 395–3 403.(in Chinese))
[29] HE Y L，LIU Q，LI Q，et al. Lattice Boltzmann methods for single-phase and solid-liquid phase-change heat transfer in porous media：A review[J]. International Journal of Heat and Mass Transfer，2019，129：160–197.
[30] 何雅玲，王勇，李庆. 格子 Boltzmann 方法的理论及应用[M]. 北京：科学出版社，2009：49–55.(HE Yaling，WANG Yong，LI Qing. Lattice Boltzmann method：theory and applications[M]. Beijing：Science Press，2009：49–55.(in Chinese))
[31] ZOU Q S，HE X Y. On pressure and velocity boundary conditions for the lattice Boltzmann BGK model[J]. Physics of Fluids，1997，9(6)：1 591–1 598.
[32] 杨天鸿，唐春安，徐涛，等. 岩石破裂过程的渗流特性—理论、模型与应用[M]. 北京：科学出版社，2004：2–3.(YANG Tianhong，TANG Chunan，XU Tao，et al. Seepage characteristic in rock failure theory model and applications[M]. Beijing：Science Press，2004：2–3.(in Chinese))
[33] 蔡美峰，何满潮，刘东燕. 岩石力学与工程[M]. 北京：科学出版社，2002：53–54.(CAI Meifeng，HE Manchao，LIU Dongyan. Rock mechanics and engineering[M]. Beijing：Science Press，2002：53–54.(in Chinese))
[34] WANG D K，LV R H，WEI J P，et al. An experimental study of seepage properties of gas-saturated coal under different loading conditions[J]. Energy Science and Engineering，2019，7(3)：799–808.
[35] 王登科，彭明，魏建平，等. 煤岩三轴蠕变–渗流–吸附解吸实验装置的研制及应用[J]. 煤炭学报，2016，41(3)：644–652.(WANG Dengke，PENG Ming，WEI Jianping，et al. Development and application of tri-axial creep-seepage-adsorption and desorption experimental device[J]. Journal of China Coal Society，2016，41(3)：644–652.(in Chinese))
[36] 康金芬. 基于格子波尔兹曼模型微流混合的数值模拟[博士学位论文][D]. 大连：大连理工大学，2008.(KANG Jinfen. Simulation of Fluid and Mixing in Microchannels by Using Lattice Boltzmann Method [Ph. D. Thesis][D]. Dalian：Dalian University of Technology，2008.(in Chinese))
[37] 杨永杰，陈绍杰，韩国栋. 煤样压缩破坏过程的声发射试验[J]. 煤炭学报，2006，31(5)：652–655.(YANG Yongjie，CHEN Shaojie，HAN Guodong. Experimental on acoustic emission during compression rupture procedure of coal sample[J]. Journal of China Coal Society，2006，31(5)：652–655.(in Chinese))
[38] 曹树刚，刘延保，张立强. 突出煤体变形破坏声发射特征的综合分析[J]. 岩石力学与工程学，2007，26(增1)：2 794–2 799.(CAO Shugang，LIU Yanbao，ZHANG Liqiang. Study on characteristics of acoustic emission in outburst coal[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(Supp.1)：2 794–2 799.(in Chinese))