Study on the influence of perforation parameters on hydraulic fracture initiation and propagation based on CDEM

doi:10.1016/j.compgeo.2023.106061

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Study on the influence of perforation parameters on hydraulic fracture initiation and propagation based on CDEM
	Li, Jing; Wang LX(王理想); Feng C(冯春); Zhang, Rui; Zhu XG(朱心广); Zhang, Yiming
刊名	COMPUTERS AND GEOTECHNICS
	2024-03-01
卷号	167 页码:13
关键词	Continuous-discontinuous element method (CDEM) Perforation layout parameters Numerical simulation Hydraulic fracturing Crack propagation
ISSN号	0266-352X
DOI	10.1016/j.compgeo.2023.106061
通讯作者	Wang, Lixiang(wanglx@imech.ac.cn)
英文摘要	Perforation hydraulic fracturing plays a crucial role in the development of oil and gas reservoirs, and perforation layout can significantly affect the initiation and propagation of complex reservoir rock fractures. In this paper, we used a mixed finite-discrete element method with an explicit iterative scheme called the continuous-discontinuous element method (CDEM) to study the process of hydraulic fracture propagation through perforation. The coupling effects of fluid flow and reservoir mechanics are fully considered, and the accuracy of the model in simulating the directional propagation of perforation hydraulic fractures is validated by comparison with physical experimental results. We also discussed in detail the impact of perforation pattern, density, depth, and aperture on crack initiation, propagation, and complexity, and used the new index of fracture degree to quantitatively evaluate the fracturing effects under the influence of multiple perforation layout parameters. The results indicate that: (i) hydraulic fractures near the wellbore compete for initiation, and the length distribution of cracks is uneven and intricate; (ii) linear perforation patterns produce the maximum initiation pressure, which is negatively correlated with the perforation density and positively correlated with the perforation depth and aperture; (iii) the fracture degree is mainly affected by perforation density and depth, and is less affected by aperture. Perforation can effectively control the fracture morphology and initiation pressure, and has a substantial influence on the crack propagation layout near the wellbore. This study provides a basis for the rational selection and optimization of perforation parameters, which can effectively improve the fracturing effects of tight oil and gas reservoirs.
分类号	一类
资助项目	National Natural Science Foundation of China[52178324] ; National Natural Science Foundation of China[12102059] ; China Postdoctoral Science Foundation[2023M743604] ; Beijing Natural Science Foundation[3212027] ; National Key R&D Program of China[2023YFC3007203]
WOS关键词	DISCONTINUITY EMBEDDED APPROACH ; MESHFREE METHOD ; NUMERICAL-SIMULATION ; SEEPAGE
WOS研究方向	Computer Science ; Engineering ; Geology
语种	英语
WOS记录号	WOS:001156632000001
资助机构	National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Beijing Natural Science Foundation ; National Key R&D Program of China
其他责任者	Wang, Lixiang
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94372]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Li, Jing,Wang LX,Feng C,et al. Study on the influence of perforation parameters on hydraulic fracture initiation and propagation based on CDEM[J]. COMPUTERS AND GEOTECHNICS,2024,167:13.
APA	Li, Jing,王理想,冯春,Zhang, Rui,朱心广,&Zhang, Yiming.(2024).Study on the influence of perforation parameters on hydraulic fracture initiation and propagation based on CDEM.COMPUTERS AND GEOTECHNICS,167,13.
MLA	Li, Jing,et al."Study on the influence of perforation parameters on hydraulic fracture initiation and propagation based on CDEM".COMPUTERS AND GEOTECHNICS 167(2024):13.