Volume 50 Issue 6
Jun.  2022
Turn off MathJax
Article Contents
Abstract
References
Related Articles
LIU Shunxi，FAN Kunyu，JIN Yi，et al. Stress sensitivity characteristics of deep coal reservoirs and its influence on coalbed methane productivity[J]. Coal Geology & Exploration，2022，50(6)：56−64. DOI: 10.12363/issn.1001-1986.21.09.0534
Citation: LIU Shunxi，FAN Kunyu，JIN Yi，et al. Stress sensitivity characteristics of deep coal reservoirs and its influence on coalbed methane productivity[J]. Coal Geology & Exploration，2022，50(6)：56−64. DOI: 10.12363/issn.1001-1986.21.09.0534
shu

Stress sensitivity characteristics of deep coal reservoirs and its influence on coalbed methane productivity

  • 1.

    School of Resources and Environment, Henan Polytechnic University, Jiaozuo 454003, China

  • 2.

    State Key Laboratory of Coal and Coalbed Methane Co-mining, Jincheng 048012, China

  • 3.

    Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization of Henan Province, Jiaozuo 454003, China

More Information
  • Received Date: September 27, 2021
  • Revised Date: December 02, 2021
  • Available Online: May 29, 2022
  • Published Date: June 24, 2022
    Graphical Abstract
    • Abstract
  • Deep coal reservoirs are in a high in-situ stress environment, and their permeability change characteristics are quite different from those of shallow ones. In order to study the effect of the effective stress on the permeability difference of deep coal reservoirs and the characteristics of stress sensitivity anisotropy, the samples from 1 200 m to 1 700 m of the No.15 coal seam in the Hengling block in the Qinshui Basin are taken as the research objects. The overburden porosity and permeability experiments are used to study the permeability changes of parallel and vertical bedding samples under different effective stress conditions to explore their stress sensitivity characteristics and the impact on CBM productivity. The results show that the permeability decreases in a power exponential function with the increase of effective stress. The permeability of the parallel bedding surface in the study area is generally higher than that of the vertical bedding surface, and the permeability changes in the two directions show a positive correlation. The three parameters of reservoir pore and fracture compressibility, permeability stress damage rate, and permeability curvature are selected as the stress sensitivity evaluation indexes of coal reservoirs. Among them, the pore and fracture compressibility coefficient shows a positive correlation and a negative correlation with the increase of the effective stress, with 5 MPa as the limit. The permeability damage rate and permeability curvature increase and decrease exponentially with the effective stress. Based on the study of stress sensitivity parameters, the CBM well productivity model was derived. It was found that the productivity of gas wells without stress sensitivity was higher than that with stress sensitivity. That is to say, under the same production pressure of 5 MPa, the production reduction rate of the gas well production shows an overall increasing trend with the increase of the stress sensitivity coefficient. According to the phase division, the target coal seam in the study area should adopt a small-medium-large displacement scheme to control the production flow during the CBM extraction process.
    • FullText(HTML)
    • References (27)
  • [1]
    贾慧敏,胡秋嘉,樊彬,等. 沁水盆地郑庄区块北部煤层气直井低产原因及高效开发技术[J]. 煤田地质与勘探,2021,49(2):34−42. JIA Huimin,HU Qiujia,FAN Bin,et al. Causes for low CBM production of vertical wells and efficient development technology in northern Zhengzhuang block in Qinshui Basin[J]. Coal Geology & Exploration,2021,49(2):34−42. DOI: 10.3969/j.issn.1001-1986.2021.02.005

    JIA Huimin, HU Qiujia, FAN Bin, et al. Causes for low CBM production of vertical wells and efficient development technology in northern Zhengzhuang block in Qinshui Basin[J]. Coal Geology & Exploration, 2021, 49(2): 34–42. DOI: 10.3969/j.issn.1001-1986.2021.02.005
    [2]
    穆福元,仲伟志,赵先良,等. 中国煤层气产业发展战略思考[J]. 天然气工业,2015,35(6):110−116. MU Fuyuan,ZHONG Weizhi,ZHAO Xianliang,et al. Strategies for the development of CBM gas industry in China[J]. Natural Gas Industry,2015,35(6):110−116.

    MU Fuyuan, ZHONG Weizhi, ZHAO Xianliang, et al. Strategies for the development of CBM gas industry in China[J]. Natural Gas Industry, 2015, 35(6): 110–116.
    [3]
    宋慧波,安红亮,刘顺喜,等. 沁水盆地武乡南煤层气赋存主控地质因素及富集区预测[J]. 煤炭学报,2021,46(12):3974−3978. SONG Huibo,AN Hongliang,LIU Shunxi,et al. Controlling geological factors and coalbed methane enrichment areas in southern Wuxiang block, Qinshui Basin[J]. Journal of China Coal Society,2021,46(12):3974−3978.

    SONG Huibo, AN Hongliang, LIU Shunxi, et al. Controlling geological factors and coalbed methane enrichment areas in southern Wuxiang block, Qinshui Basin[J]. Journal of China Coal Society, 2021, 46(12): 3974-3978
    [4]
    JIN Yi,DONG Jiabin,LI Xiang,et al. Kinematical measurement of hydraulic tortuosity of fluid flow in porous media[J]. International Journal of Modern Physics C,2015,26(2):1550017. DOI: 10.1142/S0129183115500175
    [5]
    ZHANG Lei,YE Zhiwei,HUANG Mengqian,et al. Characteristics of bituminous coal permeability response to the pore pressure and effective shear stress in the Huaibei coalfield in China[J]. Geofluids,2019(2):1−12.
    [6]
    秦勇,吴建光,张争光,等. 基于排采初期生产特征的煤层气合采地质条件分析[J]. 煤炭学报,2020,45(1):241−257. QIN Yong,WU Jianguang,ZHANG Zhengguang,et al. Analysis of geological conditions for coalbed methane co–production based on production characteristics in early stage of drainage[J]. Journal of China Coal Society,2020,45(1):241−257.

    QIN Yong, WU Jianguang, ZHANG Zhengguang, et al. Analysis of geological conditions for coalbed methane co–production based on production characteristics in early stage of drainage[J]. Journal of China Coal Society, 2020, 45(1): 241–257.
    [7]
    ZHANG Xiaoyang,WU Caifang,WANG Ziwei. Experimental study of the effective stress coefficient for coal permeability with different water saturations[J]. Journal of Petroleum Science and Engineering,2019,182:106282. DOI: 10.1016/j.petrol.2019.106282
    [8]
    MENG Ya,LI Zhiping,LAI Fengpeng. Influence of effective stress on gas slippage effect of different rank coals[J]. Fuel,2021,285:119207. DOI: 10.1016/j.fuel.2020.119207
    [9]
    薛培,高潮. 有效应力对保德区块煤储层渗透率影响研究[J]. 地质与勘探,2016,52(2):334−339. XUE Pei,GAO Chao. Study on influence of effective stress on coal reservoir permeability in the Baode block[J]. Geology and Exploration,2016,52(2):334−339.

    XUE Pei, GAO Chao. Study on influence of effective stress on coal reservoir permeability in the Baode block[J]. Geology and Exploration, 2016, 52(2): 334–339.
    [10]
    ZHAO Mengyu,JIN Yi,LIU Xianhe,et al. Characterizing the complexity assembly of pore structure in a coal matrix:Principle,methodology,and modeling application[J]. Journal of Geophysical Research:Solid Earth,2020,125(e2020JB020110):1−18.
    [11]
    BIOT M A. Theory of deformation of a porous viscoelastic anisotropic solid[J]. Journal of Applied Physics,1956,27(5):459−467. DOI: 10.1063/1.1722402
    [12]
    ZENG Kaihua,XU Jiaxiong,HE Pengfei,et al. Experimental study on permeability of coal sample subjected to triaxial stresses[J]. Procedia Engineering,2011,26:1051−1057. DOI: 10.1016/j.proeng.2011.11.2273
    [13]
    陈世达,汤达祯,高丽军,等. 有效应力对高煤级煤储层渗透率的控制作用[J]. 煤田地质与勘探,2017,45(4):76−80. CHEN Shida,TANG Dazhen,GAO Lijun,et al. Control of effective stress on permeability in high–rank coal reservoirs[J]. Coal Geology & Exploration,2017,45(4):76−80. DOI: 10.3969/j.issn.1001-1986.2017.04.013

    CHEN Shida, TANG Dazhen, GAO Lijun, et al. Control of effective stress on permeability in high–rank coal reservoirs[J]. Coal Geology & Exploration, 2017, 45(4): 76–80. DOI: 10.3969/j.issn.1001-1986.2017.04.013
    [14]
    黄强,傅雪海,张庆辉,等. 沁水盆地中高煤阶煤储层覆压孔渗试验研究[J]. 煤炭科学技术,2019,47(6):164−170. HUANG Qiang,FU Xuehai,ZHANG Qinghui,et al. Experimental study on overburden pore permeability of medium and high rank coal reservoirs in Qinshui Basin[J]. Coal Science and Technology,2019,47(6):164−170.

    HUANG Qiang, FU Xuehai, ZHANG Qinghui, et al. Experimental study on overburden pore permeability of medium and high rank coal reservoirs in Qinshui Basin[J]. Coal Science and Technology, 2019, 47(6): 164–170.
    [15]
    马如英,王猛,阿斯亚•巴克,等. 准东南低阶煤覆压孔渗试验研究[J]. 中国矿业大学学报,2020,49(6):1182−1192. MA Ruying,WANG Meng,ASIYA B,et al. Experimental study of overburden pore porosity and permeability of low–rank coal reservoirs in southeastern Junggar[J]. Journal of China University of Mining & Technology,2020,49(6):1182−1192.

    MA Ruying, WANG Meng, ASIYA B, et al. Experimental study of overburden pore porosity and permeability of low–rank coal reservoirs in southeastern Junggar[J]. Journal of China University of Mining & Technology, 2020, 49(6): 1182–1192.
    [16]
    程鸣,傅雪海,张苗,等. 沁水盆地古县区块煤系“三气”储层覆压孔渗实验对比研究[J]. 天然气地球科学,2018,29(8):1163−1171. CHENG Ming,FU Xuehai,ZHANG Miao,et al. Comparative study on porosity and permeability in net confining stress of three natural gases in coal series reservoirs in Guxian County,Qinshui Basin[J]. Natural Gas Geoscience,2018,29(8):1163−1171. DOI: 10.11764/j.issn.1672-1926.2018.05.013

    CHENG Ming, FU Xuehai, ZHANG Miao, et al. Comparative study on porosity and permeability in net confining stress of three natural gases in coal series reservoirs in Guxian County, Qinshui Basin[J]. Natural Gas Geoscience, 2018, 29(8): 1163–1171. DOI: 10.11764/j.issn.1672-1926.2018.05.013
    [17]
    孟雅,李治平. 覆压下煤的孔渗性实验及其应力敏感性研究[J]. 煤炭学报,2015,40(1):154−159. MENG Ya,LI Zhiping. Experimental study on the porosity and permeability of coal in net confining stress and its stress sensitivity[J]. Journal of China Coal Society,2015,40(1):154−159.

    MENG Ya, LI Zhiping. Experimental study on the porosity and permeability of coal in net confining stress and its stress sensitivity[J]. Journal of China Coal Society, 2015, 40(1): 154–159.
    [18]
    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.

    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.
    [19]
    LI Jianhua,LI Bobo,WANG Zhihe,et al. A permeability model for anisotropic coal masses under different stress conditions[J]. Journal of Petroleum Science and Engineering,2021,198:108197. DOI: 10.1016/j.petrol.2020.108197
    [20]
    王攀,杜文凤,冯飞胜. 基于影响因素优选的煤层瓦斯渗透率预测模型[J]. 煤矿安全,2017,48(11):21−25. WANG Pan,DU Wenfeng,FENG Feisheng. Prediction model of coalbed gas permeability based on optimization of influencing factors[J]. Safety in Coal Mines,2017,48(11):21−25.

    WANG Pan, DU Wenfeng, FENG Feisheng. Prediction model of coalbed gas permeability based on optimization of influencing factors[J]. Safety in Coal Mines, 2017, 48(11): 21–25.
    [21]
    WANG Shugang,ELSWORTH D,LIU Jishan. Permeability evolution in fractured coal:The roles of fracture geometry and water–content[J]. International Journal of Coal Geology,2011,87:13−25.
    [22]
    LI Huoyin,SHIMADA S,ZHANG Ming. Anisotropy of gas permeability associated with cleat pattern in a coal seam of the Kushiro coalfield in Japan[J]. Environmental Geology,2004,47:45−50. DOI: 10.1007/s00254-004-1125-x
    [23]
    刘帅帅,杨兆彪,张争光,等. 有效应力对煤储层不同方向渗透率影响的差异性[J]. 天然气地球科学,2019,30(10):1422−1429. LIU Shuaishuai,YANG Zhaobiao,ZHANG Zhengguang,et al. Study on the differences of effective stress on coal reservoirs permeability in different directions[J]. Natural Gas Geoscience,2019,30(10):1422−1429. DOI: 10.11764/j.issn.1672-1926.2019.10.006

    LIU Shuaishuai, YANG Zhaobiao, ZHANG Zhengguang, et al. Study on the differences of effective stress on coal reservoirs permeability in different directions[J]. Natural Gas Geoscience, 2019, 30(10): 1422–1429. DOI: 10.11764/j.issn.1672-1926.2019.10.006
    [24]
    WANG L L,VANDAMME M,PEREIRA J M,et al. Permeability changes in coal seams:The role of anisotropy[J]. International Journal of Coal Geology,2018,199:52−64. DOI: 10.1016/j.coal.2018.09.014
    [25]
    MCKEE C R,BUMB A C,KOENLG R A. Stress–dependent permeability and porosity of coal and other geologic formations[J]. SPE Formation Evaluation,1988,3:81−91. DOI: 10.2118/12858-PA
    [26]
    孟召平,张纪星,刘贺,等. 考虑应力敏感性的煤层气井产能模型及应用分析[J]. 煤炭学报,2014,39(4):593−599. MENG Zhaoping,ZHANG Jixing,LIU He,et al. Productivity model of CBM wells considering the stress sensitivity and its application analysis[J]. Journal of China Coal Society,2014,39(4):593−599.

    MENG Zhaoping, ZHANG Jixing, LIU He, et al. Productivity model of CBM wells considering the stress sensitivity and its application analysis[J]. Journal of China Coal Society, 2014, 39(4): 593–599.
    [27]
    朱维耀,马东旭,朱华银,等. 页岩储层应力敏感性及其对产能影响[J]. 天然气地球科学,2016,27(5):892−897. ZHU Weiyao,MA Dongxu,ZHU Huayin,et al. Stress sensitivity of shale gas reservoir and its influence on productivity[J]. Natural Gas Geoscience,2016,27(5):892−897. DOI: 10.11764/j.issn.1672-1926.2016.05.0892

    ZHU Weiyao, MA Dongxu, ZHU Huayin, et al. Stress sensitivity of shale gas reservoir and its influence on productivity[J]. Natural Gas Geoscience, 2016, 27(5): 892–897. DOI: 10.11764/j.issn.1672-1926.2016.05.0892
    • Related Articles

  • Related Articles

    [1]ZHANG Cong, LI Mengxi, FENG Shuren, HU Qiujia, QIAO Maopo, WU Dingquan, YU Jiasheng, LI Kexin. Reservoir properties and gas production difference between No.15 coal and No.3 coal in Zhengzhuang Block, southern Qinshui Basin[J]. COAL GEOLOGY & EXPLORATION, 2022, 50(9): 145-153. DOI: 10.12363/issn.1001-1986.21.12.0816
    [2]LIU Shiqi, FANG Huihuang, SANG Shuxun, HU Qiujia, DUAN Weiying, JIA Huimin, MAO Chonghao. Numerical simulation of gas production for multilayer drainage coalbed methane vertical wells in southern Qinshui Basin[J]. COAL GEOLOGY & EXPLORATION, 2022, 50(6): 20-31. DOI: 10.12363/issn.1001-1986.22.01.0008
    [3]LI Guofu, ZHANG Wei, LI Meng, PAN Jienan, LIU Liangliang, CHEN Zhaoying, ZHANG Yongcheng, BAI Yang. Gas content and productivity controlling factors of coal reservoir in Sijiazhuang area, Qinshui Basin[J]. COAL GEOLOGY & EXPLORATION, 2022, 50(3): 146-155. DOI: 10.12363/issn.1001-1986.21.12.0756
    [4]LI Yangyang, LI Xianqing, ZHANG Xueqing, XIAO Xianming, YU Zhenfeng, WANG Baoyu. Characteristics of shale gas reservoir in Upper Paleozoic coal measures in Yangquan Block, Qinshui Basin[J]. COAL GEOLOGY & EXPLORATION, 2021, 49(2): 142-151. DOI: 10.3969/j.issn.1001-1986.2021.02.018
    [5]YI Yongxiang, TANG Shuheng, ZHANG Songhang, YAN Xinlu, WANG Kaifeng, DANG Feng. Analysis on the type of reservoir pressure drop and drainage control of coalbed methane well in the southern block of Shizhuang[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(5): 118-126. DOI: 10.3969/j.issn.1001-1986.2019.05.016
    [6]XUE Haifei, ZHU Guanghui, WANG Wei, LU Xiaoxia, WANG Minghao, WANG Yanbin. Analysis and application of key influencing factors of CBM well fracturing effects in Shizhuang area, Qinshui basin[J]. COAL GEOLOGY & EXPLORATION, 2019, 47(4): 76-81. DOI: 10.3969/j.issn.1001-1986.2019.04.012
    [7]FENG Shuren, ZHANG Cong, ZHANG Jinxiao, LIU Zhong, CUI Xinrui, CHAO Weiwei. Gas-water differentiation characteristics of CBM reservoirs in Xiadian block, Qinshui basin[J]. COAL GEOLOGY & EXPLORATION, 2018, 46(5): 129-134. DOI: 10.3969/j.issn.1001-1986.2018.05.020
    [8]XU Gang, LI Shugang, DING Yang. Classification of coalbed methane enrichment units in Qinshui basin[J]. COAL GEOLOGY & EXPLORATION, 2013, 41(6): 22-26. DOI: 10.3969/j.issn.1001-1986.2013.06.006
    [9]JIN Xiang-lan, ZHANG Hong. Prediction of higher-permeability region for CBM exploration based on multivariate regression analysis:A case study from Qinshui Basin[J]. COAL GEOLOGY & EXPLORATION, 2006, 34(2): 22-25.
    [10]FU Xue-hai, QIN Yong, LI Gui-zhong. An analysis on the principal control factor of coal reservoir permeability in Central and Southern Qinshui Basin[J]. COAL GEOLOGY & EXPLORATION, 2001, 29(3): 16-19.

Catalog

    Get Citation
    PDF
    XML

    Article Metrics

    Article views (555) PDF downloads (168) Cited by()
    Related

    Copyright of website design © Editorial Office of Coal Geology & Exploration 陕ICP备05001372号-6 陕公网安备 61019002002193号

    Address: Editorial Office of Coal Geology & Exploration, No.82 Jinye 1st Rd, High-Tech Zone, Xi'an City, Shaanxi, China

    Tel: 029-81778075 E-mail: ccrimtdzykt@vip.163.com

    Supported by: Beijing Renhe Information Technology Co., Ltd.  Baidu Analytics

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return