DOI: 10.1002/2016GL069979
论文题名: Investigation of wing crack formation with a combined phase-field and experimental approach
作者: Lee S. ; Reber J.E. ; Hayman N.W. ; Wheeler M.F.
刊名: Geophysical Research Letters
ISSN: 0094-8805
EISSN: 1944-8536
出版年: 2016
卷: 43, 期: 15 起始页码: 7946
结束页码: 7952
语种: 英语
英文关键词: gelatine experiments
; model benchmark
; phase-field model
; wing crack
Scopus关键词: Cracks
; Flow of fluids
; Fracture
; Phase interfaces
; Experimental approaches
; Fracture geometries
; Fracture surfaces
; Phase field models
; Phase-field approaches
; Physical experiments
; Tectonic deformations
; Wing crack
; Crack tips
英文摘要: Fractures that propagate off of weak slip planes are known as wing cracks and often play important roles in both tectonic deformation and fluid flow across reservoir seals. Previous numerical models have produced the basic kinematics of wing crack openings but generally have not been able to capture fracture geometries seen in nature. Here we present both a phase-field modeling approach and a physical experiment using gelatin for a wing crack formation. By treating the fracture surfaces as diffusive zones instead of as discontinuities, the phase-field model does not require consideration of unpredictable rock properties or stress inhomogeneities around crack tips. It is shown by benchmarking the models with physical experiments that the numerical assumptions in the phase-field approach do not affect the final model predictions of wing crack nucleation and growth. With this study, we demonstrate that it is feasible to implement the formation of wing cracks in large scale phase-field reservoir models. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84982948262&doi=10.1002%2f2016GL069979&partnerID=40&md5=4ae9bb3dc4d3a5dc0eb0cbc2883e5330
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9768
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX, United States
Recommended Citation:
Lee S.,Reber J.E.,Hayman N.W.,et al. Investigation of wing crack formation with a combined phase-field and experimental approach[J]. Geophysical Research Letters,2016-01-01,43(15).