A novel three-dimensional hydraulic fracturing model based on continuum-discontinuum element method | |
Zhu XG(朱心广); Feng C(冯春); Cheng PD(程鹏达); Wang XQ(王心泉); Li SH(李世海) | |
发表期刊 | COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING |
2021-09 | |
卷号 | 383页码:113887 |
ISSN | 0045-7825 |
摘要 | Based on continuum-discontinuum element method (CDEM), a three-dimensional hydraulic fracturing model which can consider simultaneously the continuum field, crack opening, pore seepage field and fracture seepage field is proposed in this paper. In this model, the CDEM method is used to calculate the continuum field and crack opening, and the finite volume method (FVM) is adopted to calculate the seepage field, in which the pore seepage is characterized by Darcy's law and the fracture seepage is expressed by the cubic law. Through the comparison and analysis with four analytical solutions and one experimental phenomenon, the fracture pattern is predicted accurately and the poroelastic stress is captured as well. In addition, the result of a disk with one injection hole suggests that this model can not only depict the fluid pressure distribution in fractures and pores of rock matrix, but also trace the initiation, propagation and intersection of cracks driven by fluid. (C) 2021 Elsevier B.V. All rights reserved. |
关键词 | Hydraulic fracturing continuum-discontinuum element method (CDEM) Fracture seepage Pore seepage Crack propagation Numerical simulation |
学科领域 | Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications ; Mechanics |
DOI | 10.1016/j.cma.2021.113887 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000663709600001 |
项目资助者 | National Key Research and Development Project of China ; Ministry of Science and Technology of China [2018YFC1505504] |
论文分区 | 一类 |
力学所作者排名 | 1 |
RpAuthor | Feng, C (corresponding author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/90251 |
专题 | 流固耦合系统力学重点实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zhu XG,Feng C,Cheng PD,et al. A novel three-dimensional hydraulic fracturing model based on continuum-discontinuum element method[J]. COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,2021,383:113887. |
APA | 朱心广,冯春,程鹏达,王心泉,&李世海.(2021).A novel three-dimensional hydraulic fracturing model based on continuum-discontinuum element method.COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING,383,113887. |
MLA | 朱心广,et al."A novel three-dimensional hydraulic fracturing model based on continuum-discontinuum element method".COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING 383(2021):113887. |
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