A fast simulation method for hydraulic-fracture-network generation in fractured rock based on fully coupled XFEM
文献类型：期刊论文
| 作者 | Zhou, Yun2,3; Yang, Diansen1,2,3 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 150期号:-页码:- |
| 关键词 | XFEM Hydraulic fracturing Hydraulic-fracture network Natural fractures Fast simulation method |
| ISSN号 | 0266-352X |
| 英文摘要 | In considering the rapid decrease of stress away from the crack tip, a fast simulation method based on fully coupled XFEM is proposed to handle the low efficiency and poor convergence in simulating the generation of complex fracture networks. The weak forms of governing equations are discretized by the XFEM approximation of displacement field and FEM approximation of one-dimensional pressure field. The Newton-Raphson method is then adopted to solve the resulting fully coupled up discretization equations. After the validation of the numerical model by the propagation of a single fracture and interaction between hydraulic fracture and natural fracture, several numerical cases are adopted to illustrate the superiority of the proposed model in computational efficiency. The influence of several key factors on the propagation of hydraulic fracture in a formation containing regularly and randomly distributed natural fractures is investigated. Numerical results show that the orientation has the greatest influence on the pattern of the hydraulic-fracture network in formation with regularly distributed natural fractures. Higher natural fracture density, lower differential stress, and interface strength can contribute to the higher injection pressure, the longer total length of shear fracture, and the more complex fracture network. |
| 学科主题 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000888184100002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35233]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, China 2.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China 3.University of Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Zhou, Yun,Yang, Diansen. A fast simulation method for hydraulic-fracture-network generation in fractured rock based on fully coupled XFEM[J]. COMPUTERS AND GEOTECHNICS,2022,150(-):-. |
| APA | Zhou, Yun,&Yang, Diansen.(2022).A fast simulation method for hydraulic-fracture-network generation in fractured rock based on fully coupled XFEM.COMPUTERS AND GEOTECHNICS,150(-),-. |
| MLA | Zhou, Yun,et al."A fast simulation method for hydraulic-fracture-network generation in fractured rock based on fully coupled XFEM".COMPUTERS AND GEOTECHNICS 150.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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