CO 2 -ECBM from a Full-Chain Perspective: Mechanism Elucidation, Demonstration Practices, and Future Outlook

Yinan Cui, Chao Li, Yuchen Tian (), Bin Miao, Yanzhi Liu, Zekun Yue, Xuguang Dai, Jinghui Zhao, Hequn Gao, Hui Li, Yaozu Zhang, Guangrong Zhang, Bei Zhang, Shiqi Liu and Sijian Zheng ()
Additional contact information
Yinan Cui: Exploration and Development Research Institute, East China Oil and Gas Company, SINOPEC, Nanjing 210000, China
Chao Li: Exploration and Development Research Institute, East China Oil and Gas Company, SINOPEC, Nanjing 210000, China
Yuchen Tian: School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
Bin Miao: College of Resources, Shandong University of Science and Technology, Tai’an 271019, China
Yanzhi Liu: School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
Zekun Yue: School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
Xuguang Dai: School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
Jinghui Zhao: Key Laboratory of Deep Coalbed Methane Exploration and Development, SINOPEC, Nanjing 210000, China
Hequn Gao: Exploration and Development Research Institute, East China Oil and Gas Company, SINOPEC, Nanjing 210000, China
Hui Li: Exploration and Development Research Institute, East China Oil and Gas Company, SINOPEC, Nanjing 210000, China
Yaozu Zhang: Exploration and Development Research Institute, East China Oil and Gas Company, SINOPEC, Nanjing 210000, China
Guangrong Zhang: Key Laboratory of Deep Coalbed Methane Exploration and Development, SINOPEC, Nanjing 210000, China
Bei Zhang: China Construction Eighth Engineering Division Guangxi Construction Co., Ltd., Nanning 530000, China
Shiqi Liu: School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China
Sijian Zheng: School of Resources and Geosciences, China University of Mining and Technology, Xuzhou 221116, China

Energies, 2025, vol. 18, issue 11, 1-20

Abstract: CO 2 -enhanced coalbed methane recovery (CO 2 -ECBM) represents a promising pathway within carbon capture, utilization, and storage (CCUS) technologies, offering dual benefits of methane production and long-term CO 2 sequestration. This review provides a comprehensive analysis of CO 2 -ECBM from a full-chain perspective (Mechanism, Practices, and Outlook), covering fundamental mechanisms and key engineering practices. It highlights the complex multi-physics processes involved, including competitive adsorption–desorption, diffusion and seepage, thermal effects, stress responses, and geochemical interactions. Recent progress in laboratory experiments, capacity assessments, site evaluations, monitoring techniques, and numerical simulations are systematically reviewed. Field studies indicate that CO 2 -ECBM performance is strongly influenced by reservoir pressure, temperature, injection rate, and coal seam properties. Structural conditions and multi-field coupling further affect storage efficiency and long-term security. This work also addresses major technical challenges such as real-time monitoring limitations, environmental risks, injection-induced seismicity, and economic constraints. Future research directions emphasize the need to deepen understanding of coupling mechanisms, improve monitoring frameworks, and advance integrated engineering optimization. By synthesizing recent advances and identifying research priorities, this review aims to provide theoretical support and practical guidance for the scalable deployment of CO 2 -ECBM, contributing to global energy transition and carbon neutrality goals.

Keywords: CO 2 -ECBM; CCUS; site suitability assessment; numerical simulation; environmental risk; energy security (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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