气候变化领域集成服务门户(CCPortal): Does Low-Viscosity Fracturing Fluid Always Create Complex Fractures?

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DOI	10.1029/2020JB020332
	Does Low-Viscosity Fracturing Fluid Always Create Complex Fractures?
	Chen Z.; Elsworth D.; Wang M.
发表日期	2020
ISSN	21699313
卷号	125 期号:9
英文摘要	Lower viscosity fluids are commonly believed to be able to create more complex fractures in hydraulic fracturing; however, the mechanism remains stubbornly unclear. We use a new grain-scale model with accurate coupling of hydrodynamic forces to simulate the propagation of fluid-driven fracturing. The results clarify that fracturing fluid with a lower viscosity does not always create more complex fractures. The heterogeneity in the rock exerts the principal control on systematic evolution of fracture complexity. In homogeneous rock, low viscosity fluids result in low breakdown pressure, but viscosity exerts little influence on fracture complexity. However, in heterogeneous rock, lower viscosity can lead to more complex network of fracturing. A regime map shows the dependence of fracture complexity on the degree of rock heterogeneity where low viscosity fracturing fluid more readily permeates weak defects and creates complex fracture networks. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	fracture complexity; grain-scale modeling; hydraulic fracturing; solid-fluid coupling
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187643
作者单位	Department of Engineering Mechanics and CNMM, Tsinghua University, Beijing, China; Department of Geosciences, EMS Energy Institute and G3 Center, The Pennsylvania State University, University Park, PA, United States
推荐引用方式 GB/T 7714	Chen Z.,Elsworth D.,Wang M.. Does Low-Viscosity Fracturing Fluid Always Create Complex Fractures?[J],2020,125(9).
APA	Chen Z.,Elsworth D.,&Wang M..(2020).Does Low-Viscosity Fracturing Fluid Always Create Complex Fractures?.Journal of Geophysical Research: Solid Earth,125(9).
MLA	Chen Z.,et al."Does Low-Viscosity Fracturing Fluid Always Create Complex Fractures?".Journal of Geophysical Research: Solid Earth 125.9(2020).