煤样三维渗透率应力敏感性试验研究The experimental study on stress sensitivity of three dimensional permeability of coal
张羽,张遂安,杨立源,杜瑶,董银涛,张琴
ZHANG Yu,ZHANG Suian,YANG Liyuan,DU Yao,DONG Yintao,ZHANG Qin
摘要(Abstract):
目前国内三维渗透率测试研究处于起步阶段,利用自主研发的煤样三维渗透率测试仪,可以模拟实现真实三向应力状态下流体通过立方体煤样孔隙的三维渗流,并进行真实三向应力条件下煤样渗透率应力敏感性试验研究。试验结果表明,真实三向应力作用下煤样水平最大主应力对煤样水平方向渗透性的影响程度大于水平最小主应力;煤样三维渗透率对三向应力的敏感程度不同,对垂直应力的敏感性最强,水平最大主应力次之,水平最小主应力最小。
At present, the research on 3D permeability test is in the initial stage in China. Based on the self-developed 3D permeability tester for coal samples, we can simulate the three dimensional fluid flow through pores of coal samples under the triaxial stress. The experiments of stress sensitivity of the permeability of coal samples were conducted under triaxial stress. The study shows that the impact of horizontal maximum principle stress on percolation ability of coal samples is larger than horizontal minimum principle stress; the three dimensional permeability of coal samples is sensitive to the stress in different directions, the strong-to-weak sequence of sensitivity is: the vertical stress>horizontal maximum principle stress>horizontal minimum principle stress.
关键词(KeyWords):
煤样;三维;渗透率;应力敏感性
coal sample;three dimensional;permeability;stress sensitivity
基金项目(Foundation): 国家科技重大专项项目(2011ZX05042);; 山西省煤层气联合基金项目(2012012005)~~
作者(Author):
张羽,张遂安,杨立源,杜瑶,董银涛,张琴
ZHANG Yu,ZHANG Suian,YANG Liyuan,DU Yao,DONG Yintao,ZHANG Qin
参考文献(References):
- [1]孙培德,凌志仪.三轴应力作用下煤渗透率变化规律实验[J].重庆大学学报(自然科学版),2000,23(增刊1):28–31.SUN Peide,LING Zhiyi.Experimental study of the law for permeability of coal under action of 3-triaxial compression[J].Journal of Chongqing University(Natural Science Edition),2000,23(S1):28–31.
- [2]杨延辉,孟召平,张纪星.煤储层应力敏感性试验及其评价新方法[J].煤田地质与勘探,2016,44(1):38–42.YANG Yanhui,MENG Zhaoping,ZHANG Jixing.Research on stress sensitivity of coal reservoir and a new method for its evaluation[J].Coal Geology&Exploration,2016,44(1):38–42.
- [3]吕玉民,汤达祯,许浩.韩城地区煤储层孔渗应力敏感性及其差异[J].煤田地质与勘探,2013,41(6):31–34.LYU Yumin,TANG Dazhen,XU Hao.Stress sensitivity and difference of porosity and permeability in coal reservoirs[J].Coal Geology&Exploration,2013,41(6):31–34.
- [4]张永平,杨艳磊,唐新毅,等.沁南地区高煤阶煤储层流速敏感性及影响因素[J].煤田地质与勘探,2015,43(4):36–40.ZHANG Yongping,YANG Yanlei,TANG Xinyi,et al.Velocity sensitivity and its influencing factors of high-rank coal reservoir in southern Qinshui basin[J].Coal Geology&Exploration,2015,43(4):36–40.
- [5]郝杰.真三轴煤样渗透率测定装置及其应用研究[J].工业设计,2015(9):103–104.HAO Jie.The development and applications of triaxial permeability measuring device of coal samples[J].Industrial Design,2015(9):103–104.
- [6]林柏泉,周世宁.煤样瓦斯渗透率的实验研究[J].中国矿业大学学报,1987(1):24–31.LIN Baiquan,ZHOU Shining.Experimental investigation on the permeability of the coal samples containing methane[J].Journal of China University of Mining and Technology,1987(1):24–31.
- [7]唐巨鹏,潘一山,李成全,等.有效应力对煤层气解吸渗流影响试验研究[J].岩石力学与工程学报,2006,25(8):1563–1568.TANG Jupeng,PAN Yishan,LI Chengquan,et al.Experimental study on effect of effective stress on desorption and seepage of coalbed methane[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(8):1563–1568.
- [8]于永江,张华,张春会,等.温度及应力对成型煤样渗透性的影响[J].煤炭学报,2013,38(6):936–941.YU Yongjiang,ZHANG Hua,ZHANG Chunhui,et al.Effects of temperature and stress on permeability of standard coal briquette specimen[J].Journal of China Coal Society,2013,38(6):936–941.
- [9]潘荣锟,王力,陈向军,等.卸载煤体渗透特性及微观结构应力效应研究[J].煤炭科学技术,2013,41(7):75–78.PAN Rongkun,WANG Li,CHEN Xiangjun,et al.Study on permeability characteristics of unloading coal body and stress effect of microstructure[J].Coal Science and Technology,2013,41(7):75–78.
- [10]马海峰,李传明,李家卓,等.注水压力对煤体渗透率及水压分布的影响研究[J].煤炭科学技术,2013,41(8):71–73.MA Haifeng,LI Chuanming,LI Jiazhuo,et al.Study on the influence of water injection pressure on permeability and water pressure distribution in coal body[J].Coal Science and Technology,2013,41(8):71–73.
- [11]魏建平,李明助,王登科,等.煤样渗透率围压敏感性试验研究[J].煤炭科学技术,2014,42(6):76–80.WEI Jianping,LI Mingzhu,WANG Dengke,et al.Experimental research on sensibility of coal sample permeability under confining pressure[J].Coal Science and Technology,2014,42(6):76–80.
- [12]张渊,万志军,康建荣,等.温度、三轴应力条件下砂岩渗透率阶段特征分析[J].岩土力学,2011,32(3):677–683.ZHANG Yuan,WAN Zhijun,KANG Jianrong,et al.Analysis of stage characteristics of sandstone permeability under conditions of temperature and triaxial stress[J].Rock and Soil Mechanics,2011,32(3):677–683.
- [13]王广荣,薛东杰,郜海莲,等.煤岩全应力-应变过程中渗透特性的研究[J].煤炭学报,2012,37(1):107–112.WANG Guangrong,XUE Dongjie,GAO Hailian,et al.Study on permeability characteristics of coal/rock in complete stress-strain process[J].Journal of China Coal Society,2012,37(1):107–112.
- [14]孟召平,侯泉林.煤储层应力敏感性及影响因素的试验分析[J].煤炭学报,2012,37(3):430–437.MENG Zhaoping,HOU Quanlin.Experimental research on stress sensitivity of coal reservoir and its influencing factors[J].Journal of China Coal Society,2012,37(3):430–437.
- [15]祝捷,姜耀东,孟磊,等.载荷作用下煤体变形与渗透性的相关性研究[J].煤炭学报,2012,37(6):984–988.ZHU Jie,JIANG Yaodong,MENG Lei,et al.Pertinence study on deformation and permeability of coal during loading process[J].Journal of China Coal Society,2012,37(6):984–988.
- [16]李锋,袁梅.三轴渗流设备改造探讨[J].煤炭工程,(201219):114–116.LI Feng,YUAN Mei.Discussion on reconstruction of triaxial seepage equipment[J].Coal Engineering,2012(9):114–116.
- [17]杨永杰,宋扬,陈绍杰.煤岩全应力应变过程渗透性特征试验研究[J].岩土力学,2007,28(2):381–385.YANG Yongjie,SONG Yang,CHEN Shaojie.Test study on permeability properties of coal samples during complete stress-strain process[J].Rock and Soil Mechanics,2007,28(2):381–385.
- [18]彭永伟,齐庆新,邓志刚,等.考虑尺度效应的煤样渗透率对围压敏感性试验研究[J].煤炭学报,2008,33(5):509–513.PENG Yongwei,QI Qingxin,Deng Zhigang,et al.Experimental research on sensibility of permeability of coal samples under confining pressure status based on scale effect[J].Journal of China Coal Society,2008,33(5):509–513.
- [19]冯子军,万志军,赵阳升,等.高温三轴应力下无烟煤、气煤煤体渗透特性的试验研究[J].岩石力学与工程学报,2010,29(4):689–696.FENG Zijun,WAN Zhijun,ZHAO Yangsheng,et al.Experimental study of permeability of anthracite and gas coal masses under high temperature and triaxial stress[J].Chinese Journal of Rock Mechanics and Engineering,2010,29(4):689–696.
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