张玉等:复杂应力路径下裂隙泥岩渗透演化规律试验研究 ,913· 4结论 Eg,2019,68:102911 [7]Li S,Luo M K,Fan C J,et al.Quantitative characterization of the 制备随机分布裂隙泥岩岩样的基础上,开展 effect of acidification in coals by NMR and low-temperature 了复杂应力路径下渗透性测试研究,构建了渗透 nitrogen adsorption.J China Coal Soc,2017,42(7):1748 率演化力学模型.主要结论如下: (李胜,罗明坤,范超军,等.基于核磁共振和低温氮吸附的煤层 (1)R1和R2岩样渗透率数量级分别为1019m2 酸化增透效果定量表征.煤炭学报,2017,42(7):1748) 和1017m2,R2岩样渗透率应力敏感性高于R1岩 [8] Yao J,Huang Z Q,Liu WZ,et al.Key mechanical problems in the 样.渗透率随围压的增长呈指数关系降低,但随渗 development of deep oil and gas reservoirs.Sci Sin Phys Mech Astron,2018,48(4):044701 透压力的增长呈指数函数增长,且渗透压力对渗 (姚军,黄朝琴,刘文政,等.深层油气藏开发中的关键力学问题 透性影响高于围压 中国科学(物理学力学天文学),2018.48(4):044701) (2)加卸载过程中,渗透率随加载呈降低趋 [9]Zhang Y,Xu W Y,Zhao H B,et al.Experimental investigation on 势,随卸载呈增加趋势:整体表现出下降趋势,具 permeability evolution of sandstone from fractured zone under 有不可逆性;围压、偏应力同步增长,渗透率亦呈 coupling action of hydro-mechanical-creep.J China Univ Petrol, 下降趋势,且随围压增加,渗透率趋于恒定 2014,38(4):154 (3)基于裂隙双重介质模型,考虑裂隙系统和 (张玉,徐卫亚,赵海斌,等.渗流-应力一流变耦合作用下破碎带 基质系统的相互作用,以及应力作用下的裂隙膨 砂岩渗透演化规律试验研究.中国石油大学学报:自然科学版, 胀变形,构建了复杂应力路径下裂隙泥岩渗透率 2014,38(4):154) 演化力学模型:模拟结果与试验结果具有较好的 [10]Zhang Y,Liu Z B,Xu W Y,et al.Change in the permeability of 一致性 clastic rock during multi-loading triaxial compressive creep tests. Geotech Lett,2015,5(3):167 参考文献 [11]Jia C J,Xu W Y,Wang H L,et al.Laboratory investigations of inert gas flow behaviors in compact sandstone.Environ Earth Sci, [1]Zou C N,Zhao WZ,Jia C Z,et al.Formation and distribution of 2018,77(6):245 volcanic hydrocarbon reservoirs in sedimentary basins of China [12]Yu J,Li H,Chen X,et al.Triaxial experimental study of Petrol Explor Dev,2008,35(3):257 associated permeability-deformation of sandstone under hydro- (邹才能,赵文智,贾承造,等.中国沉积盆地火山岩油气藏形成 mechanical coupling.Chin J Rock Mech Eng,2013,32(6):1203 与分布.石油勘探与开发,2008.35(3):257) (俞缙,李宏,陈旭,等.渗透压-应力耦合作用下砂岩渗透率与 [2]He Y D,Wei C G.The present situation and research direction of 变形关联性三轴试验研究.岩石力学与工程学报,2013,32(6): evaluation methods in fracture type reservoir.Prog Geophys,2007, 1203) 22(2):537 [13]Zhang Y,Shao J F,Xu W Y,et al.Creep behaviour and (何雨丹,魏春光.裂缝型油气藏勘探评价面临的挑战及发展方 permeability evolution of cataclastic sandstone in triaxial 向.地球物理学进展,2007,22(2):537) rheological tests.Eur J Emviron Civil Eng,2015,19(4):496 [3]Zhou H G,Guo J C,Li J,et al.A study on the influence rule of the [14]Min K B.Rutqvist J,Tsang C F,et al.Stress-dependent fracture characteristics on rock seepage characteristics.Geomech, permeability of fractured rock masses:a numerical study.IntJ 2017,23(4):531 Rock Mech Min Sci,2004,41(7):1191 (周汉国,郭建春,李静,等.裂隙特征对岩石渗流特性的影响规 [15]Liu WQ,Li Y S,Wang B.Gas permeability of fractured 律研究.地质力学学报,2017,23(4):531) sandstone/coal samples under variable confining pressure.Transp [4]Fujii T,Funatsu T,Oikawa Y,et al.Evolution of permeability Porous Media,2010.83(2):333 during fracturing processes in rocks under conditions of geological [16]Yang J B,Feng X T,Pan P Z.Experimental study of permeability storage of CO2.Mater Trans,2015,56(5):679 characteristics of single rock fracture considering stress history [5]Wang S,Yu Q L,Wang L.Effect of fracture roughness on Rock Soil Mech,2013,34(6):1629 permeability coefficient under uniaxial compression.Chin J Eng (杨金保,冯夏庭,潘鹏志.考虑应力历史的岩石单裂隙渗流特 https:.1doi.org/10.13374j.issm2095-9389.2020.05.26.001 性试验研究.岩土力学,2013,34(6):1629) (王帅,于庆磊,王玲.单轴压缩条件下裂隙粗糙度对渗透系数 [17]Man K,Liu X L,Su R,et al.Permeability measuring of large 的影响.工程科学学报.hips:1doi.org/10.13374.isn2095-9389 scaled single fractured media with a seepage stress coupling testing 2020.05.26.001) apparatus.Chin J Rock Mech Eng,2015,34(10):2064 [6]Wang H Y.Hydraulic fracture propagation in naturally fractured (满轲,刘晓丽,苏锐,等.大尺度单裂隙介质应力一渗流耦合试 reservoirs:Complex fracture or fracture networks.J Nat Gas Sci 验台架及其渗透系数测试研究.岩石力学与工程学报,2015,4 结论 制备随机分布裂隙泥岩岩样的基础上,开展 了复杂应力路径下渗透性测试研究,构建了渗透 率演化力学模型. 主要结论如下: (1)R1 和 R2 岩样渗透率数量级分别为 10−19 m 2 和 10−17 m 2 ,R2 岩样渗透率应力敏感性高于 R1 岩 样. 渗透率随围压的增长呈指数关系降低,但随渗 透压力的增长呈指数函数增长,且渗透压力对渗 透性影响高于围压. ( 2)加卸载过程中,渗透率随加载呈降低趋 势,随卸载呈增加趋势;整体表现出下降趋势,具 有不可逆性;围压、偏应力同步增长,渗透率亦呈 下降趋势,且随围压增加,渗透率趋于恒定. (3)基于裂隙双重介质模型,考虑裂隙系统和 基质系统的相互作用,以及应力作用下的裂隙膨 胀变形,构建了复杂应力路径下裂隙泥岩渗透率 演化力学模型;模拟结果与试验结果具有较好的 一致性. 参 考 文 献 Zou C N, Zhao W Z, Jia C Z, et al. Formation and distribution of volcanic hydrocarbon reservoirs in sedimentary basins of China. Petrol Explor Dev, 2008, 35(3): 257 (邹才能, 赵文智, 贾承造, 等. 中国沉积盆地火山岩油气藏形成 与分布. 石油勘探与开发, 2008, 35(3):257) [1] He Y D, Wei C G. The present situation and research direction of evaluation methods in fracture type reservoir. Prog Geophys, 2007, 22(2): 537 (何雨丹, 魏春光. 裂缝型油气藏勘探评价面临的挑战及发展方 向. 地球物理学进展, 2007, 22(2):537) [2] Zhou H G, Guo J C, Li J, et al. A study on the influence rule of the fracture characteristics on rock seepage characteristics. J Geomech, 2017, 23(4): 531 (周汉国, 郭建春, 李静, 等. 裂隙特征对岩石渗流特性的影响规 律研究. 地质力学学报, 2017, 23(4):531) [3] Fujii T, Funatsu T, Oikawa Y, et al. Evolution of permeability during fracturing processes in rocks under conditions of geological storage of CO2 . Mater Trans, 2015, 56(5): 679 [4] Wang S, Yu Q L, Wang L. Effect of fracture roughness on permeability coefficient under uniaxial compression. Chin J Eng, https://doi.org/10.13374/j.issn2095-9389.2020.05.26.001 ( 王帅, 于庆磊, 王玲. 单轴压缩条件下裂隙粗糙度对渗透系数 的影响. 工程科学学报. https://doi.org/10.13374/j.issn2095-9389. 2020.05.26.001) [5] Wang H Y. Hydraulic fracture propagation in naturally fractured reservoirs: Complex fracture or fracture networks. J Nat Gas Sci [6] Eng, 2019, 68: 102911 Li S, Luo M K, Fan C J, et al. Quantitative characterization of the effect of acidification in coals by NMR and low-temperature nitrogen adsorption. J China Coal Soc, 2017, 42(7): 1748 (李胜, 罗明坤, 范超军, 等. 基于核磁共振和低温氮吸附的煤层 酸化增透效果定量表征. 煤炭学报, 2017, 42(7):1748) [7] Yao J, Huang Z Q, Liu W Z, et al. Key mechanical problems in the development of deep oil and gas reservoirs. Sci Sin Phys Mech Astron, 2018, 48(4): 044701 (姚军, 黄朝琴, 刘文政, 等. 深层油气藏开发中的关键力学问题. 中国科学 (物理学 力学 天文学), 2018, 48(4):044701) [8] Zhang Y, Xu W Y, Zhao H B, et al. Experimental investigation on permeability evolution of sandstone from fractured zone under coupling action of hydro− mechanical−creep. J China Univ Petrol, 2014, 38(4): 154 (张玉, 徐卫亚, 赵海斌, 等. 渗流−应力−流变耦合作用下破碎带 砂岩渗透演化规律试验研究. 中国石油大学学报: 自然科学版, 2014, 38(4):154) [9] Zhang Y, Liu Z B, Xu W Y, et al. Change in the permeability of clastic rock during multi-loading triaxial compressive creep tests. Géotech Lett, 2015, 5(3): 167 [10] Jia C J, Xu W Y, Wang H L, et al. Laboratory investigations of inert gas flow behaviors in compact sandstone. Environ Earth Sci, 2018, 77(6): 245 [11] Yu J, Li H, Chen X, et al. Triaxial experimental study of associated permeability-deformation of sandstone under hydromechanical coupling. Chin J Rock Mech Eng, 2013, 32(6): 1203 (俞缙, 李宏, 陈旭, 等. 渗透压−应力耦合作用下砂岩渗透率与 变形关联性三轴试验研究. 岩石力学与工程学报, 2013, 32(6): 1203) [12] Zhang Y, Shao J F, Xu W Y, et al. Creep behaviour and permeability evolution of cataclastic sandstone in triaxial rheological tests. Eur J Environ Civil Eng, 2015, 19(4): 496 [13] Min K B, Rutqvist J, Tsang C F, et al. Stress-dependent permeability of fractured rock masses: a numerical study. Int J Rock Mech Min Sci, 2004, 41(7): 1191 [14] Liu W Q, Li Y S, Wang B. Gas permeability of fractured sandstone/coal samples under variable confining pressure. Transp Porous Media, 2010, 83(2): 333 [15] Yang J B, Feng X T, Pan P Z. Experimental study of permeability characteristics of single rock fracture considering stress history. Rock Soil Mech, 2013, 34(6): 1629 (杨金保, 冯夏庭, 潘鹏志. 考虑应力历史的岩石单裂隙渗流特 性试验研究. 岩土力学, 2013, 34(6):1629) [16] Man K, Liu X L, Su R, et al. Permeability measuring of large scaled single fractured media with a seepage stress coupling testing apparatus. Chin J Rock Mech Eng, 2015, 34(10): 2064 (满轲, 刘晓丽, 苏锐, 等. 大尺度单裂隙介质应力−渗流耦合试 验台架及其渗透系数测试研究. 岩石力学与工程学报, 2015, [17] 张 玉等: 复杂应力路径下裂隙泥岩渗透演化规律试验研究 · 913 ·