IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v15y2022i21p7842-d950768.html
   My bibliography  Save this article

An Experimental and Numerical Study of Abrupt Changes in Coal Permeability with Gas Flowing through Fracture-Pore Structure

Author

Listed:
  • Lin Li

    (College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
    MOE Engineering Center of Mine Disaster Prevention and Rescue, Henan Polytechnic University, Jiaozuo 454003, China
    Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Polytechnic University, Jiaozuo 454003, China
    Henan Provincial Key Lab of Gas Geology and Control-Cultivation Base of Provincial and Ministry Joint State Key, Henan Polytechnic University, Jiaozuo 454003, China)

  • Shufan Zhang

    (College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China)

  • Zhiqiang Li

    (College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
    MOE Engineering Center of Mine Disaster Prevention and Rescue, Henan Polytechnic University, Jiaozuo 454003, China
    Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Polytechnic University, Jiaozuo 454003, China
    Henan Provincial Key Lab of Gas Geology and Control-Cultivation Base of Provincial and Ministry Joint State Key, Henan Polytechnic University, Jiaozuo 454003, China)

  • Xiangjun Chen

    (College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
    MOE Engineering Center of Mine Disaster Prevention and Rescue, Henan Polytechnic University, Jiaozuo 454003, China
    Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Polytechnic University, Jiaozuo 454003, China
    Henan Provincial Key Lab of Gas Geology and Control-Cultivation Base of Provincial and Ministry Joint State Key, Henan Polytechnic University, Jiaozuo 454003, China)

  • Lin Wang

    (College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
    MOE Engineering Center of Mine Disaster Prevention and Rescue, Henan Polytechnic University, Jiaozuo 454003, China
    Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization, Henan Polytechnic University, Jiaozuo 454003, China
    Henan Provincial Key Lab of Gas Geology and Control-Cultivation Base of Provincial and Ministry Joint State Key, Henan Polytechnic University, Jiaozuo 454003, China)

  • Shuailong Feng

    (College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China)

Abstract

Coal permeability is related to the fracture-pore structure of coal and is a key factor in determining gas drainage efficiency. The characteristics of the methane flow in coal fractures are different from those in coal matrix pores. However, due to the difficulty of observing fast methane flow in coal fractures, the effect of gas flow in coal fractures on coal permeability has seldom been considered and investigated. In this study, a cylindrical coal sample is used for the measurement of coal permeability under different gas pressures, and an abrupt change in coal permeability evolution was observed. Then, a tandem fracture-pore permeability model was adopted to analyze these new methane flow phenomena. In this permeability model, the deformation of coal fractures was directly analyzed and modeled without the reversed derivation. With the consideration of elastic modulus of coal fractures, the deformation of coal fractures is controlled by the effective strain of coal fractures, the adsorption-induced strain and effective strain of coal matrix. The research results show that (1) coal fractures quickly and significantly influence coal permeability by resisting coal deformation; (2) a complete evolution of coal permeability consists of the fast permeability change caused by methane flow in coal fractures and the slow permeability change caused by methane flow in coal matrix; (3) the low efficiency of gas mass exchange between coal fractures and coal matrix leads to a two-stage evolution for gas desorption flow and coal permeability.

Suggested Citation

  • Lin Li & Shufan Zhang & Zhiqiang Li & Xiangjun Chen & Lin Wang & Shuailong Feng, 2022. "An Experimental and Numerical Study of Abrupt Changes in Coal Permeability with Gas Flowing through Fracture-Pore Structure," Energies, MDPI, vol. 15(21), pages 1-18, October.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:7842-:d:950768
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/15/21/7842/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/15/21/7842/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Chao Xu & Yuanping Cheng & Ting Ren & Liang Wang & Shengli Kong & Shouqing Lu, 2014. "Gas ejection accident analysis in bed splitting under igneous sills and the associated control technologies: a case study in the Yangliu Mine, Huaibei Coalfield, China," Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, Springer;International Society for the Prevention and Mitigation of Natural Hazards, vol. 71(1), pages 109-134, March.
    2. Fan, Chaojun & Elsworth, Derek & Li, Sheng & Zhou, Lijun & Yang, Zhenhua & Song, Yu, 2019. "Thermo-hydro-mechanical-chemical couplings controlling CH4 production and CO2 sequestration in enhanced coalbed methane recovery," Energy, Elsevier, vol. 173(C), pages 1054-1077.
    3. Alireza Salmachi & Mojtaba Rajabi & Carmine Wainman & Steven Mackie & Peter McCabe & Bronwyn Camac & Christopher Clarkson, 2021. "History, Geology, In Situ Stress Pattern, Gas Content and Permeability of Coal Seam Gas Basins in Australia: A Review," Energies, MDPI, vol. 14(9), pages 1-37, May.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Fan, Lurong & Xu, Jiuping, 2020. "Authority–enterprise equilibrium based mixed subsidy mechanism for carbon reduction and energy utilization in the coalbed methane industry," Energy Policy, Elsevier, vol. 147(C).
    2. Cai, Mingyu & Su, Yuliang & Elsworth, Derek & Li, Lei & Fan, Liyao, 2021. "Hydro-mechanical-chemical modeling of sub-nanopore capillary-confinement on CO2-CCUS-EOR," Energy, Elsevier, vol. 225(C).
    3. Ziwen Li & Hongjin Yu & Yansong Bai, 2022. "Numerical Simulation of CO 2 -ECBM Based on Multi-Physical Field Coupling Model," Sustainability, MDPI, vol. 14(18), pages 1-15, September.
    4. Zhang, Tianjun & Wu, Jinyu & Pang, Mingkun & Liu, Rongtao & Zhu, Shipeng & Pan, Hongyu, 2024. "Experimental study on the negative pressure loss generated by the gas influx process around a long borehole," Energy, Elsevier, vol. 296(C).
    5. Liu, Zhengdong & Hu, Ze & Zhu, Wancheng & Zhao, Tingting & Liu, Shuyuan & Guo, Zhiguo & Sun, Chen & Bai, Gang, 2024. "Effect of coal permeability evolution on CO2 storage capacity under phase partial pressure in ScCO2-ECBM processes," Energy, Elsevier, vol. 297(C).
    6. Wenjie Xu & Xigui Zheng & Cancan Liu & Peng Li & Boyang Li & Kundai Michael Shayanowako & Jiyu Wang & Xiaowei Guo & Guowei Lai, 2022. "Numerical Simulation Study of High-Pressure Air Injection to Promote Gas Drainage," Sustainability, MDPI, vol. 14(21), pages 1-15, October.
    7. Gao, Xinyuan & Yang, Shenglai & Tian, Lerao & Shen, Bin & Bi, Lufei & Zhang, Yiqi & Wang, Mengyu & Rui, Zhenhua, 2024. "System and multi-physics coupling model of liquid-CO2 injection on CO2 storage with enhanced gas recovery (CSEGR) framework," Energy, Elsevier, vol. 294(C).
    8. Fangtian Wang & Cun Zhang & Ningning Liang, 2017. "Gas Permeability Evolution Mechanism and Comprehensive Gas Drainage Technology for Thin Coal Seam Mining," Energies, MDPI, vol. 10(9), pages 1-18, September.
    9. Zhao, Li & Guanhua, Ni & Yan, Wang & Hehe, Jiang & Yongzan, Wen & Haoran, Dou & Mao, Jing, 2022. "Semi-homogeneous model of coal based on 3D reconstruction of CT images and its seepage-deformation characteristics," Energy, Elsevier, vol. 259(C).
    10. Guangchao Zhang & You Li & Xiangjun Meng & Guangzhe Tao & Lei Wang & Hanqing Guo & Chuanqi Zhu & Hao Zuo & Zhi Qu, 2022. "Distribution Law of In Situ Stress and Its Engineering Application in Rock Burst Control in Juye Mining Area," Energies, MDPI, vol. 15(4), pages 1-17, February.
    11. Zhang, Chaolin & Wang, Enyuan & Li, Bobo & Kong, Xiangguo & Xu, Jiang & Peng, Shoujian & Chen, Yuexia, 2023. "Laboratory experiments of CO2-enhanced coalbed methane recovery considering CO2 sequestration in a coal seam," Energy, Elsevier, vol. 262(PA).
    12. Wang, Kai & Wang, Yanhai & Xu, Chao & Guo, Haijun & Xu, Zhiyuan & Liu, Yifu & Dong, Huzi & Ju, Yang, 2023. "Modeling of multi-field gas desorption-diffusion in coal: A new insight into the bidisperse model," Energy, Elsevier, vol. 267(C).
    13. Lan, Wenjian & Wang, Hanxiang & Zhang, Xin & Fan, Hongbo & Feng, Kun & Liu, Yanxin & Sun, Bingyu, 2020. "Investigation on the mechanism of micro-cracks generated by microwave heating in coal and rock," Energy, Elsevier, vol. 206(C).
    14. Quansen Wu & Fengjun Han & Shengjian Liang & Fanxing Sun & Daqing Wan & Huairui Su & Fuwu Ma & Quanlin Wu, 2022. "Development Law of Mining Fracture and Disaster Control Technology under Hard and Thick Magmatic Rock," Sustainability, MDPI, vol. 14(18), pages 1-23, September.
    15. Suyang Zhu & Alireza Salmachi, 2021. "Flowing Material Balance and Rate-Transient Analysis of Horizontal Wells in Under-Saturated Coal Seam Gas Reservoirs: A Case Study from the Qinshui Basin, China," Energies, MDPI, vol. 14(16), pages 1-24, August.
    16. Liu, Zhengdong & Lin, Xiaosong & Zhu, Wancheng & Hu, Ze & Hao, Congmeng & Su, Weiwei & Bai, Gang, 2023. "Effects of coal permeability rebound and recovery phenomenon on CO2 storage capacity under different coalbed temperature conditions during CO2-ECBM process," Energy, Elsevier, vol. 284(C).
    17. Zhou, Lijun & Zhou, Xihua & Fan, Chaojun & Bai, Gang, 2022. "Coal permeability evolution triggered by variable injection parameters during gas mixture enhanced methane recovery," Energy, Elsevier, vol. 252(C).
    18. Liu, Xudong & Sang, Shuxun & Zhou, Xiaozhi & Wang, Ziliang, 2023. "Coupled adsorption-hydro-thermo-mechanical-chemical modeling for CO2 sequestration and well production during CO2-ECBM," Energy, Elsevier, vol. 262(PA).
    19. Fan, Zhanglei & Fan, Gangwei & Zhang, Dongsheng & Zhang, Lei & Zhang, Shuai & Liang, Shuaishuai & Yu, Wei, 2021. "Optimal injection timing and gas mixture proportion for enhancing coalbed methane recovery," Energy, Elsevier, vol. 222(C).
    20. Chen, Min & Geng, Jianhua & Cui, Linyong & Xu, Fengyin & Thomas, Hywel, 2024. "Evaluation of CO2-enhanced gas recovery and storage through coupled non-isothermal compositional two-phase flow and geomechanics modelling," Energy, Elsevier, vol. 305(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:15:y:2022:i:21:p:7842-:d:950768. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.