DOI: 10.1002/2016GL069478
论文题名: Linking microearthquakes to fracture permeability change: The role of surface roughness
作者: Ishibashi T. ; Watanabe N. ; Asanuma H. ; Tsuchiya N.
刊名: Geophysical Research Letters
ISSN: 0094-8852
EISSN: 1944-8583
出版年: 2016
卷: 43, 期: 14 起始页码: 7486
结束页码: 7493
语种: 英语
英文关键词: channeling flow
; induced microearthquakes
; permeability
; rock fracture
; scale dependency
; shear displacement
Scopus关键词: Fracture
; Geothermal fields
; Mechanical permeability
; Surface roughness
; Well stimulation
; Channeling flow
; Micro-earthquakes
; Rock fractures
; Scale dependency
; Shear displacement
; Shear flow
英文摘要: Despite its importance, the relation between microearthquakes (MEQs) and changes in hydraulic properties during hydraulic stimulation of a fractured reservoir has rarely been explored, and it is still not well understood. To investigate this relation, we first formulate a plausible scale dependence, where fracture length and shear displacement are variables, for channeling flow through heterogeneous aperture distributions for joints and faults. By combining this formulation with the concept of the seismic moment, we derive quantitative relations between the moment magnitude (Mw) of MEQs and the fracture permeability change in the directions orthogonal to (kfault,⊥/kjoint) and parallel to (kfault,∥/kjoint) the shear displacement, in the form (Formula presented.) and (Formula presented.). Despite the simplicity of the derivation, these relations have the potential to explain the results of field experiments on hydraulic stimulation, such as the enhanced geothermal systems at Soultz-sous-Fôret and Basel. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84979536754&doi=10.1002%2f2016GL069478&partnerID=40&md5=e64b6e7c11c9113958bd3aa78340ccc9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9815
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: Fukushima Renewable Energy Institute, National Institute of Advanced Industrial Science and Technology, Koriyama, Japan
Recommended Citation:
Ishibashi T.,Watanabe N.,Asanuma H.,et al. Linking microearthquakes to fracture permeability change: The role of surface roughness[J]. Geophysical Research Letters,2016-01-01,43(14).