Numerical investigation of hydraulic fracture propagation in a layered reservoir using the cohesive zone method

被引：194

作者：

Guo, Jianchun ^{[1
]}

Luo, Bo ^{[1
]}

Lu, Cong ^{[1
]}

Lai, Jie ^{[1
]}

Ren, Jichuan ^{[1
]}

机构：

[1] Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, Chengdu 610500, Sichuan, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2017年 / 186卷

基金：

中国国家自然科学基金;

关键词：

Layered reservoir; Weak interface; Hydraulic fracture geometry; Cohesive zone method; GAS-RESERVOIR; SIMULATION; ROCK; OPTIMIZATION; STIMULATION; CONTAINMENT; INTERFACES; GEOMETRY; FAILURE; GROWTH;

D O I：

10.1016/j.engfracmech.2017.10.013

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Complex hydraulic fractures are often reported in layered formations as the existence of a geological discontinuity. A seepage-stress-damage coupled finite element model was built to study the hydraulic fracture propagation behavior of the X5 sandstone and shale layered reservoir in the western Sichuan basin. The cohesive zone method (CZM) based on damage mechanics was used to simulate hydraulic fracture initiation and propagation. The influence of geologic parameters and fracturing execution parameters on hydraulic fracture morphology were studied. The results show that hydraulic fractures are mainly penetrating the interface and extending along the interface to generate a branched fracture, while others are forming normal bi-wing fractures. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：195 / 207

页数：13

共 46 条

[1] EFFECTS OF FRICTION ON HYDRAULIC FRACTURE GROWTH NEAR UNBONDED INTERFACES IN ROCKS [J].