Thermal-Hydraulic-Mechanical Coupling Simulation of CO2 Enhanced Coalbed Methane Recovery with Regards to Low-Rank but Relatively Shallow Coal Seams
文献类型：期刊论文
| 作者 | Ma, Qianqian3; Li, Hong3; Ji, Kun3; Huang, Fengjun1,2,3 |
| 刊名 | APPLIED SCIENCES-BASEL
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 13期号:4页码:- |
| 关键词 | CO2 sequestration enhanced coalbed methane recovery permeability Thermal-Hydraulic-Mechanical coupling |
| 英文摘要 | CO2 injection technology into coal seams to enhance CH4 recovery (CO2-ECBM), therefore presenting the dual benefit of greenhouse gas emission reduction and clean fossil energy development. In order to gaze into the features of CO2 injection's influence on reservoir pressure and permeability, the Thermal-Hydraulic-Mechanical coupling mechanism of CO2 injection into the coal seam is considered for investigation. The competitive adsorption, diffusion, and seepage flowing of CO2 and CH4 as well as the dynamic evolution of fracture porosity of coal seams are considered. Fluid physical parameters are obtained by the fitting equation using MATLAB to call EOS software Refprop. Based on the Canadian CO2-ECBM project CSEMP, the numerical simulation targeting shallow low-rank coal is carried out, and the finite element method is used in the software COMSOL Multiphysics. Firstly, the direct recovery (CBM) and CO2-ECBM are compared, and it is confirmed that the injection of CO2 has a significant improvement effect on methane production. Secondly, the influence of injection pressure and temperature is discussed. Increasing the injection pressure can increase the pressure difference in the reservoir in a short time, so as to improve the CH4 production and CO2 storage. However, the increase in gas injection pressure will also lead to the rapid attenuation of near-well reservoir permeability, resulting in the weakening of injection capacity. Also, when the injection temperature increases, the CO2 concentration is relatively reduced, and the replacement effect on CH4 is weakened, resulting in a slight decrease in CBM production and CO2 storage. |
| 学科主题 | Chemistry ; Engineering ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000938796400001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35092]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.Key Laboratory of Deep Earth Science and Engineering, Sichuan University, Chengdu 610017, China 3.Faculty of Infrastructure Engineering, Dalian University of Technology, Dalian 116024, China |
| 推荐引用方式 GB/T 7714 | Ma, Qianqian,Li, Hong,Ji, Kun,et al. Thermal-Hydraulic-Mechanical Coupling Simulation of CO2 Enhanced Coalbed Methane Recovery with Regards to Low-Rank but Relatively Shallow Coal Seams[J]. APPLIED SCIENCES-BASEL,2023,13(4):-. |
| APA | Ma, Qianqian,Li, Hong,Ji, Kun,&Huang, Fengjun.(2023).Thermal-Hydraulic-Mechanical Coupling Simulation of CO2 Enhanced Coalbed Methane Recovery with Regards to Low-Rank but Relatively Shallow Coal Seams.APPLIED SCIENCES-BASEL,13(4),-. |
| MLA | Ma, Qianqian,et al."Thermal-Hydraulic-Mechanical Coupling Simulation of CO2 Enhanced Coalbed Methane Recovery with Regards to Low-Rank but Relatively Shallow Coal Seams".APPLIED SCIENCES-BASEL 13.4(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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