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Numerical simulation of hydraulic fracturing process in a naturally fractured reservoir based on a discrete fracture network model

文献类型：期刊论文

作者Li, Yanyan2; Hu, Wei2; Zhang, Zhihong2; Zhang, Zhaobin3; Shang, Yanjun3; Han, Lili4; Wei, Siyu1
刊名JOURNAL OF STRUCTURAL GEOLOGY
出版日期2021-06-01
卷号147页码:12
关键词Shale gas Natural fracture Bedding plane Discrete fracture network model Hydraulic fracturing
ISSN号0191-8141
DOI10.1016/j.jsg.2021.104331
英文摘要This research presents a simulation of hydraulic fracturing process in a naturally fractured reservoir based on a discrete fracture network (DFN) model coupling different kinds of pre-existing discontinuities. Natural fractures and bedding planes obtained from outcrops and downhole camera in the Ordos Basin of China are used to build a three-dimensional DFN model. The propagation of hydraulic fractures in the layered and naturally-fractured reservoir, and the complex interactions between hydraulic fractures, natural fractures and bedding planes are simulated using the displacement discontinuity method. The results show that strong interactions between hydraulic fractures and pre-existing discontinuities occur during fluid injection, causing complex fracture geometry. When the injection rate is 0.01 m3/min, only one major hydraulic fracture is induced, and crack growth along bedding interface does not occur since the fluid pressure is not high enough. With increasing injection rate (0.1 m3/min and 1.0 m3/min), natural fracture and bedding planes are activated, inducing multiple major hydraulic fractures and reticulated fractures. For each injection scheme, fracture geometry in the horizontal and vertical directions becomes more complex with the injection of fracturing fluid. However, fracture complexity in the horizontal direction is smaller than that in the vertical direction when the injection rate varies from 0.01 m3/ min to 1.0 m3/min. Besides, the results show that injection rate has a strong positive influence on the increment of fracture complexity.
WOS关键词FLUID-DRIVEN FRACTURES ; YANCHANG FORMATION ; ORDOS BASIN ; PREEXISTING FRACTURE ; BARNETT SHALE ; ROCK MASS ; DAM SITE ; PROPAGATION ; IMPACT ; GEOMETRY
资助项目National Natural Science Foundation of China (NSFC)[42077258] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB10030100]
WOS研究方向Geology
语种英语
WOS记录号WOS:000649660600001
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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 (NSFC) ; National Natural Science Foundation of China (NSFC) ; 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/132A11/101209]  
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Zhang, Zhihong
作者单位1.China Geol Survey, Oil & Gas Survey, Beijing 100083, Peoples R China
2.Beijing Univ Technol, Fac Urban Construct, Beijing 100124, Peoples R China
3.Chinese Acad Sci, Key Lab Shale Gas & Geoengn, Inst Geol & Geophys, Beijing 100029, Peoples R China
4.Chinese Acad Geol Sci, Beijing 100037, Peoples R China
推荐引用方式
GB/T 7714		 Li, Yanyan,Hu, Wei,Zhang, Zhihong,et al. Numerical simulation of hydraulic fracturing process in a naturally fractured reservoir based on a discrete fracture network model[J]. JOURNAL OF STRUCTURAL GEOLOGY,2021,147:12.
APA Li, Yanyan.,Hu, Wei.,Zhang, Zhihong.,Zhang, Zhaobin.,Shang, Yanjun.,...&Wei, Siyu.(2021).Numerical simulation of hydraulic fracturing process in a naturally fractured reservoir based on a discrete fracture network model.JOURNAL OF STRUCTURAL GEOLOGY,147,12.
MLA Li, Yanyan,et al."Numerical simulation of hydraulic fracturing process in a naturally fractured reservoir based on a discrete fracture network model".JOURNAL OF STRUCTURAL GEOLOGY 147(2021):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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