Numerical simulation of CO2-ECBM for deep coal reservoir with strong stress sensitivity

Gong, Shengli; Zhang, Lu; Zhang, Tongyao; He, Wei; Hu, Weiqiang; Yin, Hongchao; Ma, Liangshuai; Hong, Xin; Zhang, Wei; Zhang, Bo

doi:10.1016/j.heliyon.2024.e34818

Heliyon

2024

DOI: 10.1016/j.heliyon.2024.e34818

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Numerical simulation of CO2-ECBM for deep coal reservoir with strong stress sensitivity

Shengli Gong,

Lu Zhang,

Tongyao Zhang

et al.

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Cited by 2 publications

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Mini-Review on Influence of CO₂-Enhanced Coalbed Methane Recovery and CO₂ Geological Storage on Physical Properties of Coal Reservoir

Cao,

Fu,

Kang

et al. 2024

Energy Fuels

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CO 2 -Enhanced Coalbed Methane Recovery (CO 2 -ECBM) not only enhances coalbed methane (CBM) recovery but also facilitates CO 2 geological storage within coal seams. The modification of coal reservoir physical properties due to CO 2 injection significantly impacts CBM recovery, CO 2 injection, and storage safety. This review initially focuses on elucidating the manifestations and underlying mechanisms of alterations in the physical properties of coal reservoirs, encompassing adsorption capacity, pore structure, permeability, and mechanical behavior. Subsequently, the influence factors of CO 2 -ECBM and geological storage on modification of coal reservoir physical properties are reviewed, such as temperature, pressure, reaction time, mineralogical characteristics, coal rank, and water. Finally, the challenges and perspectives are discussed, including (1) the role of coalbed water in modifying coal reservoir physical properties, (2) the implications of caprock alteration for the security of geological CO 2 sequestration, (3) the synergistic mechanisms underlying long-term storage of CO 2 within coal reservoirs, and (4) the heterogeneity of coal reservoir modification in three-dimensional space.

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Mini-Review on Influence of CO₂-Enhanced Coalbed Methane Recovery and CO₂ Geological Storage on Physical Properties of Coal Reservoir

Cao,

Fu,

Kang

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

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A Study on CO₂ Emission Reduction Strategies of Coal-Fired Power Plants Based on CCUS-ECBM Source-Sink Matching

Yang,

Zhang,

Zhang

et al. 2024

Energies

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In order to reduce CO₂ emissions from industrial processes, countries have commenced the vigorous development of CCUS (carbon capture, utilization and storage) technology. The high geographical overlap between China’s extensive coal mining regions and CO2-emitting industrial parks provides an opportunity for the more efficient reduction in CO2 emissions through the development of Enhanced Coal Bed Methane (ECBM) Recovery for use with CCUS technology. Furthermore, the high geographical overlap and proximity of these regions allows for a shift in the transportation mode from pipelines to tanker trucks, which are more cost-effective and logistically advantageous. The issue of transportation must also be considered in order to more accurately assess the constructed cost function and CCUS source–sink matching model for the implementation of ECBM. The constructed model, when considered in conjunction with the actual situation in Shanxi Province, enables the matching of emission sources and sequestration sinks in the province to be realized through the use of ArcGIS 10.8 software, and the actual transport routes are derived as a result. After analyzing the matching results, it is found that the transportation cost accounts for a relatively small proportion of the total cost. In fact, the CH4 price has a larger impact on the total cost, and a high replacement ratio is not conducive to profitability. When the proportion of CO2 replacing CH4 increases from 1 to 3, the price of CH4 needs to increase from $214.41/t to $643.23/t for sales to be profitable. In addition, electric vehicle transportation costs are lower compared to those of fuel and LNG vehicles, especially for high-mileage and frequent-use scenarios. In order to reduce the total cost, it is recommended to set aside the limitation of transportation distance when matching sources and sinks.

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Numerical simulation of CO2-ECBM for deep coal reservoir with strong stress sensitivity

Cited by 2 publications

References 38 publications

Mini-Review on Influence of CO₂-Enhanced Coalbed Methane Recovery and CO₂ Geological Storage on Physical Properties of Coal Reservoir

Mini-Review on Influence of CO₂-Enhanced Coalbed Methane Recovery and CO₂ Geological Storage on Physical Properties of Coal Reservoir

A Study on CO₂ Emission Reduction Strategies of Coal-Fired Power Plants Based on CCUS-ECBM Source-Sink Matching

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Numerical simulation of CO2-ECBM for deep coal reservoir with strong stress sensitivity

Cited by 2 publications

References 38 publications

Mini-Review on Influence of CO2-Enhanced Coalbed Methane Recovery and CO2 Geological Storage on Physical Properties of Coal Reservoir

Mini-Review on Influence of CO2-Enhanced Coalbed Methane Recovery and CO2 Geological Storage on Physical Properties of Coal Reservoir

A Study on CO₂ Emission Reduction Strategies of Coal-Fired Power Plants Based on CCUS-ECBM Source-Sink Matching

Contact Info

Product

Resources

About

Mini-Review on Influence of CO₂-Enhanced Coalbed Methane Recovery and CO₂ Geological Storage on Physical Properties of Coal Reservoir

Mini-Review on Influence of CO₂-Enhanced Coalbed Methane Recovery and CO₂ Geological Storage on Physical Properties of Coal Reservoir