How does the heterogeneous interface influence hydraulic fracturing?

doi:10.1016/j.ijengsci.2023.104000

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	How does the heterogeneous interface influence hydraulic fracturing?
	Wang, Quan; Yu, Hao; Xu, Wenlong; Huang, Hanwei; Li, Fanding; Wu HA(吴恒安)
刊名	INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
	2024-02-01
卷号	195 页码:31
关键词	Fluid -solid interaction Hydraulic fracture Asymptotic analysis Heterogeneous interface Fluid lag Multiscale tip solution
ISSN号	0020-7225
DOI	10.1016/j.ijengsci.2023.104000
通讯作者	Yu, Hao(yuhaoo@ustc.edu.cn)
英文摘要	Under the influence of the nonlinear fluid-solid coupling, hydraulic fracture exhibits various propagation modes (such as toughness- or viscosity-dominated), which stem from the competition between the solid deformation and fluid flow. Based on the homogeneous assumption, the basic theoretical analysis has divided toughness and viscosity scales in the tip region. However, regarding more realistic and complex geological conditions, like layered heterogeneity, knowledge of fluid-driven fracture propagation is still unclear. This work establishes a theoretical model and solving approach to reveal the multiscale asymptotic behavior during hydraulic fracture passing through the heterogeneous interface (i.e., discontinuous elastic properties). The influence of material discontinuity, regarded as the remote force, in the near-tip, intermediate, and far-field scales is analyzed by the asymptotic analysis and validated by the numerical solutions. Notably, solutions at the intermediate scale manifest as individual feature owing to the heterogeneity: as the crack in front of the interface, just a specific transition solution governed by the property and position of the interface appears; once the crack tip passes the interface, the interface-governed transition solution and interface solution occur simultaneously and interact as the crack tip moves away from the interface. Such multiscale property results in the interface-governed fluidsolid interaction in the tip region, and finally leads to changes in interface failure and propagation mode. On the one hand, the criterion for interface failure should be modified by simultaneously incorporating the heterogeneity of solid domain and multiscale nature of tip solution, especially for viscosity- or interface-dominated propagation regimes. On the other hand, the propagation mode in a heterogeneous domain is controlled by two characteristics: traditional l/lmk for toughness-viscosity competition associated with c/L mu for material discontinuity effect proposed in the present work. These insights provide the theoretical foundation for modeling hydraulic fracture propagation in layered heterogeneous domains.
分类号	一类
资助项目	National Natural Science Foundation of China[12202432] ; National Natural Science Foundation of China[12232016] ; National Post-doctoral Program for Innovative Talents[BX2021285] ; Fundamental Research Funds for the Central Universities[WK2090000042]
WOS关键词	FLUID-DRIVEN FRACTURE ; EFFECTIVE TOUGHNESS ; CRACK PROBLEM ; TIP REGION ; PROPAGATION ; MECHANICS ; ALGORITHM ; BEHAVIOR ; FIELD
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:001144917800001
资助机构	National Natural Science Foundation of China ; National Post-doctoral Program for Innovative Talents ; Fundamental Research Funds for the Central Universities
其他责任者	Yu, Hao
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94115]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Wang, Quan,Yu, Hao,Xu, Wenlong,et al. How does the heterogeneous interface influence hydraulic fracturing?[J]. INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE,2024,195:31.
APA	Wang, Quan,Yu, Hao,Xu, Wenlong,Huang, Hanwei,Li, Fanding,&吴恒安.(2024).How does the heterogeneous interface influence hydraulic fracturing?.INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE,195,31.
MLA	Wang, Quan,et al."How does the heterogeneous interface influence hydraulic fracturing?".INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE 195(2024):31.