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Experimental Investigation of Simultaneous and Asynchronous Hydraulic Fracture Growth from Multiple Perforations in Shale Considering Stress Anisotropy

文献类型：期刊论文

作者Guo, Peng1; Li, Xiao1,2; Li, Shouding2; He, Jianming2; Mao, Tianqiao2; Hu, Yanzhi2; Zheng, Bo2
刊名ROCK MECHANICS AND ROCK ENGINEERING
出版日期2023-08-11
页码12
关键词Hydraulic fracture growth Spiral perforations Fracturing process Spatial fracture orientation Acoustic emission activity
ISSN号0723-2632
DOI10.1007/s00603-023-03499-6
英文摘要Shale oil and gas economic exploitation depends closely on effective hydraulic fracturing stimulations. However, due to the reservoir heterogeneity and in-situ stress variation, the hydraulic fracturing through multiple perforations in shale is confronted with imbalanced fracture growth. To investigate, we reported a new laboratory study that simulates hydraulic fracturing through multiple perforations in shale blocks. The effect of horizontal in-situ stress difference on simultaneous and asynchronous fracture growth from spiral perforations was analyzed. The results show that the in-situ stress difference significantly influences hydraulic fracture initiation and growth, fluid pressure behavior, and fracture orientation. Under a high value of horizontal in-situ stress difference, parallel transverse fractures are initiated simultaneously and growing independently along the direction of & sigma;(H). Higher injection pressure is required to promote hydraulic fracture propagation with the decrease of horizontal in-situ stress difference. The induced fractures grow asynchronously from two adjacent perforations and later merge into a large tortuous fracture. Besides, the azimuth angle of hydraulic fracture deflects from the direction of & sigma;(H), and the inclination angle gradually decreases. When the value of & sigma;(h) is close to & sigma;(H), an inclined longitudinal fracture and multiple mini-transverse fractures are created from spiral perforations, resulting in a prolonged fracturing process and a significant near-wellbore fracture complexity.
WOS关键词PROPAGATION BEHAVIOR ; INITIATION
资助项目National Natural Science Foundation of China[42090023] ; National Key Ramp;D Program of China[2020YFA0710504]
WOS研究方向Engineering ; Geology
语种英语
WOS记录号WOS:001046020500001
出版者SPRINGER WIEN
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 ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China ; National Key Ramp;D Program of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/111377]  
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Guo, Peng; Li, Xiao
作者单位1.Peking Univ, Inst Energy, Sch Earth & Space Sci, Beijing 100871, Peoples R China
2.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		 Guo, Peng,Li, Xiao,Li, Shouding,et al. Experimental Investigation of Simultaneous and Asynchronous Hydraulic Fracture Growth from Multiple Perforations in Shale Considering Stress Anisotropy[J]. ROCK MECHANICS AND ROCK ENGINEERING,2023:12.
APA Guo, Peng.,Li, Xiao.,Li, Shouding.,He, Jianming.,Mao, Tianqiao.,...&Zheng, Bo.(2023).Experimental Investigation of Simultaneous and Asynchronous Hydraulic Fracture Growth from Multiple Perforations in Shale Considering Stress Anisotropy.ROCK MECHANICS AND ROCK ENGINEERING,12.
MLA Guo, Peng,et al."Experimental Investigation of Simultaneous and Asynchronous Hydraulic Fracture Growth from Multiple Perforations in Shale Considering Stress Anisotropy".ROCK MECHANICS AND ROCK ENGINEERING (2023):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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