气候变化领域集成服务门户(CCPortal): Influence of Fluid-Assisted Healing on Fault Permeability Structure

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DOI	10.1029/2020JB020553
	Influence of Fluid-Assisted Healing on Fault Permeability Structure
	Yehya A.; Rice J.R.
发表日期	2020
ISSN	21699313
卷号	125 期号:10
英文摘要	Microcracks in fault damage zones can heal under thermally controlled processes. If a flow communication exists between a fluid source and the fault damage zone, warm fluids can migrate into it, change its thermal conditions, and assist healing. The crack life span depends on the local temperature and is, thus, modified by the infiltration of warm fluids. The features of the initial fault architecture govern how the fluids will propagate within the fault damage zones. This affects the rate of healing and the rate of permeability reduction. The region infiltrated by fluids will then show a significant decrease in its permeability, as seen in many field examples like the Alpine Fault. Conventionally, the damage zones immediately near the fault core have a high permeability that decays as we go further away. However, the region adjacent to the fault core, in the Alpine Fault, New Zealand, has the lowest permeability in the current interseismic period. As shown by our simulations, this can be due to healing and sealing, favored by the localized high geothermal gradients (confirmed by the drilling data) and the upward fluid migration through the fault relay structure, which accelerated mass diffusion and minerals precipitation. ©2020. The Authors.
英文关键词	damage zones; fluids; healing; microcracks; permeability; thermally controlled
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/187537
作者单位	John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, United States; Baha and Walid Bassatne Department of Chemical Engineering and Advanced Energy, AUB, Beirut, Lebanon; Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Yehya A.,Rice J.R.. Influence of Fluid-Assisted Healing on Fault Permeability Structure[J],2020,125(10).
APA	Yehya A.,&Rice J.R..(2020).Influence of Fluid-Assisted Healing on Fault Permeability Structure.Journal of Geophysical Research: Solid Earth,125(10).
MLA	Yehya A.,et al."Influence of Fluid-Assisted Healing on Fault Permeability Structure".Journal of Geophysical Research: Solid Earth 125.10(2020).