Surface deformation monitoring and inversion techniques for the pressure analysis of CO2-enhanced coalbed methane reservoir
文献类型：期刊论文
| 作者 | Zhao, Yu3,4; Li, Hong2,4; Ranjith, P. G.3; Ji, Kun4; Li, Xuanhui1,4 |
| 刊名 | GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2025-06-01 |
| 卷号 | 138页码:13 |
| 关键词 | High-precision tiltmeter CO 2-ECBM Numerical solution to inverse problem Analytical sensitivity coefficient matrix Permeability of coal cleats Strain field within reservoir domain |
| ISSN号 | 2949-9097 |
| DOI | 10.1016/j.jgsce.2025.205609 |
| 英文摘要 | A novel strategy is proposed to analyze the in-situ total stress alteration within reservoir, leveraging the induced ground surface tilting monitored by an array of installed high-precision tiltmeters. This approach maps the targeted deviatoric displacements along remote boundaries to an equivalent loading over the interface, which is applied from reservoir as inner source onto outer surrounding rocks. These inverted boundary loads characterize changes in coal cleat permeability and matrix elastic properties First, a coefficient matrix in its pure analytical expression was developed to setup the simultaneous equations with regards to Boundary Element Method on inverse modelling heterogeneous media cases. Secondly, the inverse problem is solved through optimization taking advantage of spatial regularization. This strategy was applied to the CO2 Storage & Enhanced Methane Production (CSEMP) project in Alberta, Canada. By reverse analyzing minute surface bulges and subsidence occurring during CO2 injection, an equivalent loading exerted from the stimulated coal seam reservoir envelop has been successfully determined. These distributive loads are then used to characterize the alteration in cleat permeability, showing a negative correlation between. Additionally, the hardly detectable uplift or concave magnitudes of the ground surface as well as its pattern can reflect strain distribution within reservior. To integrate this potential technique would offer a robust tool for imaging change in hydraulic and mechanical response at depth to CO2 injection and benefiting safety evaluation on reservoir-caprock system during model optimization. |
| 资助项目 | Open Research Fund of State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences[SKLGME021021] ; Fundamental Research Funds for the Central Universities[DUT24GJ205] ; Open Fund of Key Laboratory of Deep Earth Science and Engineering, Ministry of Education (Sichuan University)[DESEYU202303] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001458335100001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/36120]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Hong |
| 作者单位 | 1.Sichuan Univ, Key Lab Deep Earth Sci & Engn, Chengdu 610065, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Monash Univ, Dept Civil Engn, Deep Earth Energy Res Lab, Bldg 60, Melbourne, Vic 3800, Australia 4.Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian 116024, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yu,Li, Hong,Ranjith, P. G.,et al. Surface deformation monitoring and inversion techniques for the pressure analysis of CO2-enhanced coalbed methane reservoir[J]. GAS SCIENCE AND ENGINEERING,2025,138:13. |
| APA | Zhao, Yu,Li, Hong,Ranjith, P. G.,Ji, Kun,&Li, Xuanhui.(2025).Surface deformation monitoring and inversion techniques for the pressure analysis of CO2-enhanced coalbed methane reservoir.GAS SCIENCE AND ENGINEERING,138,13. |
| MLA | Zhao, Yu,et al."Surface deformation monitoring and inversion techniques for the pressure analysis of CO2-enhanced coalbed methane reservoir".GAS SCIENCE AND ENGINEERING 138(2025):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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