NUMERICAL SIMULATION OF HYDRO-FORCE COUPLED CRACK PROPAGATION

被引：0

作者：

Zhang, Liaoyuan ^{[1
,2
]}

Qu, Zhanqing ^{[1
]}

Chen, Yong ^{[2
]}

Huang, Bo ^{[2
]}

Li, Ming ^{[2
]}

Zhang, Yanming ^{[3
]}

Ding, Yong ^{[3
]}

Li, Aishan ^{[2
]}

机构：

[1] China Univ Petr East China, Coll Petr Engn, Qingdao 266580, Shandong, Peoples R China

[2] SINOPEC, Shengli Oilfield Branch Co, Petr Engn Technol Res Inst, Dongying 257000, Peoples R China

[3] Changqing Oilfield Co, Oil & Gas Technol Res Inst, Xian 710018, Shaanxi, Peoples R China

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2019年 / 28卷 / 06期

关键词：

Directional fracturing; hydro-mechanical coupling; crack propagation; numerical simulation; RFPA; HYDRAULIC FRACTURE PROPAGATION; RESERVOIR;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Firstly, the working principle and mechanism of directional hydraulic fracturing are introduced, then the finite element analysis of hydraulic fracturing is carried out by using the finite element software RFPA-FLOW. The crack propagation and the acoustic emission were obtained. Results show that, (1) Hydraulic fractures develop along the direction of maximum principal stress. (2) The heterogeneity coefficient and prefabricated crack inclination are positively correlated with the crack propagation angle. (3) The energy of acoustic emission accumulates more in the later stage of propagation when the heterogeneity coefficient is less than 10, while it is opposite when the heterogeneity coefficient is more than 10.

引用

页码：4923 / 4934

页数：12

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