A new simulator for hydromechanical coupling analysis of injection-induced fault activation
文献类型：期刊论文
| 作者 | He, Miao1,2; Li, Qi1,2 ; Li, Xiaying1,2
|
| 刊名 | GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
 |
| 出版日期 | 2022-04-01 |
| 卷号 | 8期号:2页码:29 |
| ISSN号 | 2363-8419 |
| 关键词 | Fluid injection Fault activation Hydromechanical coupling Numerical modeling ABAQUS user-defined subroutine (USDFLD) |
| DOI | 10.1007/s40948-022-00353-x |
| 英文摘要 | Injecting large amounts of fluid into the ground is an inevitable step in many subsurface energy extraction operations and has the potential risk of inducing fault activation. The injection operation involves complex hydromechanical coupling problems that are difficult to solve directly by analytical methods. Therefore, numerical methods are needed to simulate the physical process, and the most commonly used method is the finite element method. General finite element software is widely popular due to its unique advantages in solving complex engineering problems. However, only a few general finite element simulators permit large-scale, complex analyses and prediction of injection-induced fault activation problems. Therefore, in this paper, a user-defined field was developed in the commercial finite element software ABAQUS to improve the hydromechanical coupling analysis of injection-induced fault activation. According to the effective stress law and dynamic friction law, the effective normal stress and shear displacement of the fault were defined as the field variables varying with time step in the user subroutine. Through the exchange and update of data between the mechanical module and the hydraulic module in each step of the interpolation calculation, hydromechanical coupling analysis of injection-induced fault activation was realized. Then, verification was performed to demonstrate the capabilities and reliabilities of the user-defined field. Four cross-scale examples ranging from laboratory mesoscale (centimeter level) to reservoir-scale (hundred-meter level) show that the subroutine can be an effective tool for analyzing injection-induced fault activation in geoengineering applications. |
| 资助项目 | Major Project of Inner Mongolia Science and Technology[2021ZD0034] ; National Natural Science Foundation of China[41872210] ; National Natural Science Foundation of China[41902297] ; Creative Groups of Natural Science Foundation of Hubei Province[2021CFA030] |
| WOS研究方向 | Energy & Fuels ; Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000754225900005 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34567]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Qi |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Miao,Li, Qi,Li, Xiaying. A new simulator for hydromechanical coupling analysis of injection-induced fault activation[J]. GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES,2022,8(2):29. |
| APA | He, Miao,Li, Qi,&Li, Xiaying.(2022).A new simulator for hydromechanical coupling analysis of injection-induced fault activation.GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES,8(2),29. |
| MLA | He, Miao,et al."A new simulator for hydromechanical coupling analysis of injection-induced fault activation".GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES 8.2(2022):29. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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