How does the heterogeneous interface influence hydraulic fracturing?

doi:10.1016/j.ijengsci.2023.104000

IMECH-IR > 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)
通讯作者	Yu, Hao(yuhaoo@ustc.edu.cn)
发表期刊	INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
	2024-02-01
卷号	195 页码:31
ISSN	0020-7225
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.
关键词	Fluid -solid interaction Hydraulic fracture Asymptotic analysis Heterogeneous interface Fluid lag Multiscale tip solution
DOI	10.1016/j.ijengsci.2023.104000
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001144917800001
关键词[WOS]	FLUID-DRIVEN FRACTURE ; EFFECTIVE TOUGHNESS ; CRACK PROBLEM ; TIP REGION ; PROPAGATION ; MECHANICS ; ALGORITHM ; BEHAVIOR ; FIELD
WOS研究方向	Engineering
WOS类目	Engineering, Multidisciplinary
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]
项目资助者	National Natural Science Foundation of China ; National Post-doctoral Program for Innovative Talents ; Fundamental Research Funds for the Central Universities
论文分区	一类
力学所作者排名	3+
RpAuthor	Yu, Hao
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/94116
专题	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.