Advanced Search
  • 全国中文核心期刊
  • 中国科技核心期刊
  • 美国工程索引（EI）收录期刊
  • Scopus数据库收录期刊
Volume 44 Issue 8
Turn off MathJax
Article Contents
Abstract
References
WANG Gang, XIAO Zhi-yong, WANG Chang-sheng, JIANG Yu-jing, YU Jun-hong. Gas transport in coal seams based on non-equilibrium state[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(8): 1512-1520. DOI: 10.11779/CJGE202208016
Citation: WANG Gang, XIAO Zhi-yong, WANG Chang-sheng, JIANG Yu-jing, YU Jun-hong. Gas transport in coal seams based on non-equilibrium state[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(8): 1512-1520. DOI: 10.11779/CJGE202208016
shu

Gas transport in coal seams based on non-equilibrium state

  • 1.

    Shandong Provincial Key Laboratory of Civil Engineering, Disaster Prevention and Mitigation, Shandong University of Science and Technology, Qingdao 266590, China

  • 2.

    State Key Laboratory of Mining Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology, Shandong University of Science and Technology, Qingdao 266590, China

More Information
  • Received Date: August 02, 2021
  • Available Online: September 22, 2022
    Graphical Abstract
    • Abstract
  • During extraction of coalbed methane, the reservoir will be in a non-equilibrium dynamic adjustment phase for a long period of time due to the high variability of fracture and matrix permeability properties. However, most of the current tests and permeability models only consider the effects of a certain fixed gas pressure, which greatly limits the study of reservoir gas flow under non-equilibrium condition. Therefore, based on the concept that the reservoir is a dual porous medium, and considering the effects of different pore pressures, desorption deformation and mechanical effects of matrix-fracture on the evolution of fracture aperture during the extraction process, a model is proposed to predict the reservoir permeability under variable stress states and validated through the field data. Then the model is substituted into the gas flow equation, and the pore pressure of matrix–fracture and the evolution of core permeability in time and space are studied separately by using the finite element software. The results show that during the core desorption: (1) The fracture gas pressure in the core is disturbed to a greater extent than the matrix gas pressure. (2) The gas pressure and permeability of matrix–fracture exhibit non-linear distribution along the core length. (3) The permeability of matrix–fracture varies in the same trend.
    • FullText(HTML)
    • References (24)
  • [1]
    刘文华. 能源总量供需平稳能源结构继续优化[N]. 中国信息报, 2020-1-20.

    LIU Wen-hua. Total energy supply and demand will remain stable and the energy mix will continue to improve[N]. China Information News, 2020-1-20. (in Chinese)
    [2]
    JIANG C Z, ZHAO Z F, ZHANG X W, et al. Controlling effects of differential swelling index on evolution of coal permeability[J]. Journal of Rock Mechanics and Geotechnical Engineering, 2020, 12(3): 461–472. doi: 10.1016/j.jrmge.2020.02.001
    [3]
    肖智勇, 王长盛, 王刚, 等. 基质–裂隙相互作用对渗透率演化的影响: 考虑基质变形和应力修正[J]. 岩土工程学报, 2021, 43(12): 2209–2219. http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/abstract/abstract18907.shtml

    XIAO Zhi-yong, WANG Chang-sheng, WANG Gang, et al. Influences of matrix-fracture interaction on permeability evolution: considering matrix deformation and stress correction[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(12): 2209–2219. (in Chinese) http://manu31.magtech.com.cn/Jwk_ytgcxb/CN/abstract/abstract18907.shtml
    [4]
    LIU J S, CHEN Z W, ELSWORTH D, et al. Interactions of multiple processes during CBM extraction: a critical review[J]. International Journal of Coal Geology, 2011, 87(3/4): 175–189.
    [5]
    WU Y, LIU J S, ELSWORTH D, et al. Dual poroelastic response of a coal seam to CO2 injection[J]. International Journal of Greenhouse Gas Control, 2010, 4(4): 668–678. doi: 10.1016/j.ijggc.2010.02.004
    [6]
    LIU H H, RUTQVIST J. A new coal-permeability model: internal swelling stress and fracture–matrix interaction[J]. Transport in Porous Media, 2010, 82(1): 157–171. doi: 10.1007/s11242-009-9442-x
    [7]
    李小春, 付旭, 方志明, 等. 有效应力对煤吸附特性影响的试验研究[J]. 岩土力学, 2013, 34(5): 1247–1252. https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201305003.htm

    LI Xiao-chun, FU Xu, FANG Zhi-ming, et al. Experimental study of influence of effective stress on coal adsorption performance[J]. Rock and Soil Mechanics, 2013, 34(5): 1247–1252. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTLX201305003.htm
    [8]
    ZHOU Y B, LI Z H, YANG Y L, et al. Evolution of coal permeability with cleat deformation and variable klinkenberg effect[J]. Transport in Porous Media, 2016, 115(1): 153–167. doi: 10.1007/s11242-016-0759-y
    [9]
    LIU T, LIN B Q, YANG W. Impact of matrix-fracture interactions on coal permeability: model development and analysis[J]. Fuel, 2017, 207: 522–532. doi: 10.1016/j.fuel.2017.06.125
    [10]
    WANG L S, CHEN Z W, WANG C G, et al. Reassessment of coal permeability evolution using steady-state flow methods: the role of flow regime transition[J]. International Journal of Coal Geology, 2019, 211: 103210. doi: 10.1016/j.coal.2019.103210
    [11]
    ZHI S, ELSWORTH D. The role of gas desorption on gas outbursts in underground mining of coal[J]. Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2016, 2(3): 151–171. doi: 10.1007/s40948-016-0026-2
    [12]
    ZHANG H B, LIU J S, ELSWORTH D. How sorption-induced matrix deformation affects gas flow in coal seams: a new FE model[J]. International Journal of Rock Mechanics and Mining Sciences, 2008, 45(8): 1226–1236. doi: 10.1016/j.ijrmms.2007.11.007
    [13]
    SHI J Q, DURUCAN S. Drawdown induced changes in permeability of coalbeds: a new interpretation of the reservoir response to primary recovery[J]. Transport in Porous Media, 2004, 56(1): 1–16. doi: 10.1023/B:TIPM.0000018398.19928.5a
    [14]
    LIU Q Q, CHENG Y P, ZHOU H X, et al. A mathematical model of coupled gas flow and coal deformation with gas diffusion and klinkenberg effects[J]. Rock Mechanics and Rock Engineering, 2015, 48(3): 1163–1180. doi: 10.1007/s00603-014-0594-9
    [15]
    PENG Y, LIU J S, WEI M Y, et al. Why coal permeability changes under free swellings: new insights[J]. International Journal of Coal Geology, 2014, 133: 35–46. doi: 10.1016/j.coal.2014.08.011
    [16]
    张宏学. 页岩储层渗流–应力耦合模型及应用[D]. 徐州: 中国矿业大学, 2015.

    ZHANG Hong-xue. Seepage and Stress Coupling Model for Shale Reservoir and Its Application[D]. Xuzhou: China University of Mining and Technology, 2015. (in Chinese)
    [17]
    GRAY I. Reservoir engineering in coal seams: part 1—the physical process of gas storage and movement in coal seams[J]. SPE Reservoir Engineering, 1987, 2(1): 28–34. doi: 10.2118/12514-PA
    [18]
    PALMER I, MANSOORI J. How permeability depends on stress and pore pressure in coalbeds: a new model[J]. SPE Reservoir Evaluation & Engineering, 1998, 1(6): 539–544.
    [19]
    CUI X J, BUSTIN R M. Volumetric strain associated with methane desorption and its impact on coalbed gas production from deep coal seams[J]. AAPG Bulletin, 2005, 89(9): 1181–1202. doi: 10.1306/05110504114
    [20]
    SHI J Q, DURUCAN S. Exponential growth in San Juan Basin fruitland coalbed permeability with reservoir drawdown: model match and new insights[J]. SPE Reservoir Evaluation & Engineering, 2010, 13(6): 914–925.
    [21]
    WU Y, LIU J S, ELSWORTH D, et al. Evolution of coal permeability: contribution of heterogeneous swelling processes[J]. International Journal of Coal Geology, 2011, 88(2/3): 152-162.
    [22]
    ROBERTSON E P. Modeling permeability in coal using sorption-induced strain data[C]// SPE Annual Tethnical Conference and Exhibition. Dallas, 2005.
    [23]
    PALMER I. Permeability changes in coal: analytical modeling[J]. International Journal of Coal Geology, 2009, 77(1/2): 119–126.
    [24]
    WU Y, LIU J S, ELSWORTH D, et al. Development of anisotropic permeability during coalbed methane production[J]. Journal of Natural Gas Science and Engineering, 2010, 2(4): 197–210. doi: 10.1016/j.jngse.2010.06.002
    • Related Articles
  • Supplements (0)

  • Cited by

    Periodical cited type(13)

    1. 肖智勇，孙小翔，王刚，王铭震，贾文雯，姜枫，郑程程. 气体压差影响下的煤渗透率非平衡演化全过程模型. 岩土工程学报. 2025(02): 355-364 . 本站查看
    2. 杨希培，邢玉强. 采动应力作用下煤岩渗流场演化规律数值模拟. 煤矿安全. 2024(04): 33-41 .
    3. 王伟，余金昊，方志明，李小春，李琦，陈向军，王亮. 基于体积应变的煤体渗透率模型及影响参数分析. 煤炭学报. 2024(06): 2741-2756 .
    4. 姬红英，王文博，辛亚军，张东营，高忠国，任金武. 水力耦合下煤样声发射分形-渗透率模型及试验研究. 煤炭学报. 2024(08): 3381-3398 .
    5. 龙航，林海飞，马东民，李树刚，季鹏飞，白杨. 基于弹-塑性变形的含瓦斯煤体渗透率动态演化模型. 煤炭学报. 2024(09): 3859-3871 .
    6. 王刚，王铭震，肖智勇，孙小翔，贾文雯，姜枫，郑程程. 考虑基质吸附变形特性的煤岩渗透率演化研究. 煤炭科学技术. 2024(12): 193-203 .
    7. 刘辉辉，于斌，林柏泉，夏彬伟，李全贵，邹全乐. 原位煤层抽采多重应力演化规律及对渗透率控制机制. 岩石力学与工程学报. 2023(04): 906-917 .
    8. 孔德森，赵明凯，时健，滕森. 基于分形维数特征的岩石介质气-水相对渗透率预测模型研究. 岩土工程学报. 2023(07): 1421-1429 . 本站查看
    9. 亓宪寅，王胜伟，耿殿栋，付鹏. 基于等效裂隙开度的层理煤岩渗透率模型研究. 煤矿安全. 2023(08): 1-11 .
    10. 荣腾龙，刘克柳，周宏伟，关灿，陈岩，任伟光. 采动应力下深部煤体渗透率演化规律研究. 岩土工程学报. 2022(06): 1106-1114 . 本站查看
    11. 王刚，肖智勇，王长盛，蒋宇静，于俊红. 基于非平衡状态的煤层中气体运移规律研究. 岩土工程学报. 2022(08): 1512-1520 . 本站查看
    12. 林海飞，龙航，李树刚，赵鹏翔，严敏，白杨，肖通，秦澳立. 煤体瓦斯吸附解吸与压裂渗流全过程真三轴试验系统研发与应用. 岩石力学与工程学报. 2022(S2): 3294-3305 .
    13. 程先振，陈连军，栾恒杰，王春光，蒋宇静. 基质-裂隙相互作用对煤渗透率的影响：考虑煤的软化. 岩土工程学报. 2022(10): 1890-1898 . 本站查看

    Other cited types(5)

Catalog

    Get Citation
    PDF
    XML
    Article views (223) PDF downloads (36) Cited by(18)
    Related
    Copyright © 2010 Editorial By Chinese Journal of Geotechnical Engineering 苏ICP备05007122号-11公安联网备案号：32010602011255
    Editorial Office address：34 Hujuguan,Nanjing 210024,ChinaPostal Code：210024Tel：025-85829534，85829556E-mail: ge@nhri.cn

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return