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A review of research progress and future prospects of CO2 sequestration and enhanced coalbed methane recovery in deep coal seams
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Jiangfeng LIU1, Shuyuan LIU2, Xinyue ZHANG1, Yuedu CHEN3, Qing MA4, Lang LIU5
Journal of Mining and Strata Control Engineering | 2026, 8(2) : 023542-1 - 023542-19
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Journal of Mining and Strata Control Engineering | 2026, 8(2): 023542-1-023542-19
• Review •
A review of research progress and future prospects of CO2 sequestration and enhanced coalbed methane recovery in deep coal seams
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Jiangfeng LIU1, Shuyuan LIU2, Xinyue ZHANG1, Yuedu CHEN3, Qing MA4, Lang LIU5
Affiliations
  • 1State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, China
  • 2School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
  • 3Key Laboratory of In-situ Modified Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
  • 4School of Resources and Safety Engineering, University of Science and Technology-Beijing, Beijing 100083, China
  • 5College of Energy and Mining Engineering, Xi'an University of Science and Technology , Xi'an 710054, China
Published: 2026-04-25 doi: 10.13532/j.jmsce.cn10-1638/td.2025-1322
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With the escalating global demand for carbon emission reduction, CO2 sequestration and enhanced coal-bed methane (CO2-ECBM) has attracted widespread international attention due to its distinctive advantages in promoting the synergistic development of energy development and carbon emission reduction. This paper systematically reviewed recent advances in CO2-ECBM research across scientific, engineering, and policy-economic dimensions. Besides, it elucidated the sequestration mechanisms governed by a synergistic suite of processes, including adsorption trapping, capillary trapping, structural trapping, solubility trapping, and mineral trapping, and further evaluated the technological maturity and economic feasibility of the technology. The results demonstrate that CO2-ECBM technology not only effectively promotes coalbed methane recovery but also offers substantial sequestration potential and favorable geological stability. Through a comparative analysis on typical demonstration projects conducted worldwide, it is pointed out that practical applications of this technology still face challenges such as poor injectability of coal seams, permeability decline induced by CO2 injection, insufficient assessment of long-term sequestration safety, and economic feasibility hampered by technical costs and carbon price volatility. Drawing on bibliometric analysis and hotspot evolution mapping, this study outlines the current research landscape and development trajectory, highlighting critical future priorities such as geological suitability evaluation systems for sequestration sites, high-efficiency technologies for coal seam permeability enhancement, multi-field coupled multi-scale CO2 migration mechanisms, and intelligent monitoring and early warning systems for sequestration stability. Concurrently, it is imperative to strengthen technology integration and policy support to accelerate the commercialization and scaling of CO2-ECBM technology. These initiatives are critical for underpinning global efforts toward achieving carbon neutrality goals.

deep coal seams  /  CO2-ECBM  /  CO2 geological sequestration  /  sequestration mechanisms  /  sequestration potential
Jiangfeng LIU, Shuyuan LIU, Xinyue ZHANG, Yuedu CHEN, Qing MA, Lang LIU. A review of research progress and future prospects of CO2 sequestration and enhanced coalbed methane recovery in deep coal seams[J]. Journal of Mining and Strata Control Engineering, 2026 , 8 (2) : 023542-1 -023542-19 . DOI: 10.13532/j.jmsce.cn10-1638/td.2025-1322
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Year 2026 volume 8 Issue 2
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Article Info
doi: 10.13532/j.jmsce.cn10-1638/td.2025-1322
  • Receive Date：2025-08-20
  • Online Date：2026-05-28
  • Published：2026-04-25
Article Data
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History
  • Received：2025-08-20
  • Revised：2025-10-07
Affiliations
    1State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering, China University of Mining and Technology, Xuzhou 221116, China
    2School of Resources and Civil Engineering, Northeastern University, Shenyang 110819, China
    3Key Laboratory of In-situ Modified Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China
    4School of Resources and Safety Engineering, University of Science and Technology-Beijing, Beijing 100083, China
    5College of Energy and Mining Engineering, Xi'an University of Science and Technology , Xi'an 710054, China
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表12种不同金属材料的力学参数
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Family		 属数
Number of
genus		 种数
Number of
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鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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