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Numerical analysis on the mechanism of hydraulic fracture behavior in heterogeneous reservoir under the stress perturbation

文献类型：期刊论文

作者Liu, Shuaiqi1,2,3; Ma, Fengshan2,3; Zhao, Haijun2,3; Guo, Jie2,3; Lu, Rong2,3; Feng, Xuelei1,2,3
刊名JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
出版日期2020-06-01
卷号78页码:14
关键词Hydraulic fracturing Stress wave Hydraulic coupling algorithm Reservoir heterogeneity
ISSN号1875-5100
DOI10.1016/j.jngse.2020.103277
英文摘要Hydraulic fracturing is the key technology employed to alter the permeability of tight reservoirs. In this article, the discrete element fluid-solid coupling method is improved, and sinusoidal stress waves are applied at the boundary of a heterogeneous reservoir to simulate perturbation. The influence of stress wave frequency on the mode of crack propagation in the hydraulic fracturing process and the internal stress changes in specimens under different in situ stress ratios are investigated. The simulation results suggest that (1) under a constant injection rate, an increased frequency is associated with a gradual increase in the breakdown pressures, an increase in the time required for cracking breakdown, and faster propagation of cracks propagating; and (2) the hydraulic fracture propagation direction obviously deflects towards the stress wave propagation direction, and the failure mode becomes more complicated under the combined action of the ground stress and the stress wave; and (3) the maximum principal stress inside the specimen is compressive stress, and the curves of the maximum principal stress and maximum shear stress are periodic vibration, with the characteristics of a large amplitude at a low frequency and a small amplitude at a high frequency. The initiation of cracks near the injection hole results from a reduction in the maximum principal stress and an increase in the maximum shear stress. The analysis indicates that the stress wave has a non-negligible influence on hydraulic fracturing and provides a better guideline for understanding the mechanical nature of hydraulic fracturing under the influence of stress perturbation.
WOS关键词BONDED-PARTICLE MODEL ; MATRIX PERMEABILITY ; ROCK ; PROPAGATION ; WATER
资助项目National Natural Science Foundation of China[41831293] ; National Natural Science Foundation of China[41877274] ; National Natural Science Foundation of China[41372325] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030602]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000533147600006
出版者ELSEVIER SCI LTD
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/96693]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Ma, Fengshan
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Shuaiqi,Ma, Fengshan,Zhao, Haijun,et al. Numerical analysis on the mechanism of hydraulic fracture behavior in heterogeneous reservoir under the stress perturbation[J]. JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,2020,78:14.
APA Liu, Shuaiqi,Ma, Fengshan,Zhao, Haijun,Guo, Jie,Lu, Rong,&Feng, Xuelei.(2020).Numerical analysis on the mechanism of hydraulic fracture behavior in heterogeneous reservoir under the stress perturbation.JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING,78,14.
MLA Liu, Shuaiqi,et al."Numerical analysis on the mechanism of hydraulic fracture behavior in heterogeneous reservoir under the stress perturbation".JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING 78(2020):14.

入库方式： OAI收割

来源：地质与地球物理研究所

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