FDEM-flow3D: A 3D hydro-mechanical coupled model considering the pore seepage of rock matrix for simulating three-dimensional hydraulic fracturing

被引：135

作者：

Yan, Chengzeng ^{[1
]}

Zheng, Hong ^{[2
]}

机构：

[1] Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China

[2] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China

来源：

COMPUTERS AND GEOTECHNICS | 2017年 / 81卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Finite discrete element method (FEMDEM); Hydraulic fracturing; Hydro-mechanical coupling; Pore seepage; Calibration aperture; Fluid-driven fractures; ELEMENT-METHOD; CRACK; STRESS; WATER; FLOW; PROPAGATION; PARTICLE;

D O I：

10.1016/j.compgeo.2016.08.014

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A hydro-mechanical coupled model that can simultaneously consider the pore seepage of a rock matrix and the fracture seepage is proposed to simulate three-dimensional hydraulic fracturing. This model appropriately takes into account the fluid leak-off into the surrounding rock matrix from the fracture. Several examples are given to validate the seepage algorithms and the coupled model. The results suggest that this model can solve problems involving pore seepage and fracture seepage through simple pure fracture seepage. Moreover, it can reproduce the fluid pressure distribution and the crack initiation and propagation and consider the fluid loss during hydraulic fracturing. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：212 / 228

页数：17

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