GSTDTAP  > 资源环境科学
DOI10.1038/s41467-020-16860-y
Understanding rate effects in injection-induced earthquakes
Alghannam, Maryam; Juanes, Ruben
2020-06-16
发表期刊NATURE COMMUNICATIONS
ISSN2041-1723
出版年2020
卷号11期号:1
文章类型Article
语种英语
国家USA
英文摘要

Understanding the physical mechanisms that underpin the link between fluid injection and seismicity is essential in efforts to mitigate the seismic risk associated with subsurface technologies. To that end, here we develop a poroelastic model of earthquake nucleation based on rate-and-state friction in the manner of spring-sliders, and analyze conditions for the emergence of stick-slip frictional instability-the mechanism for earthquakes-by carrying out a linear stability analysis and nonlinear simulations. We find that the likelihood of triggering earthquakes depends largely on the rate of increase in pore pressure rather than its magnitude. Consequently, fluid injection at constant rate acts in the direction of triggering seismic rupture at early times followed by aseismic creep at late times. Our model implies that, for the same cumulative volume of injected fluid, an abrupt high-rate injection protocol is likely to increase the seismic risk whereas a gradual step-up protocol is likely to decrease it.


领域地球科学 ; 气候变化 ; 资源环境
收录类别SCI-E
WOS记录号WOS:000542989100002
WOS关键词INDUCED SEISMICITY ; FLUID PRESSURIZATION ; SLIP INSTABILITY ; WATER INJECTION ; ROCK FRICTION ; NORMAL STRESS ; FAULT SLIP ; OIL-FIELD ; OKLAHOMA ; SITE
WOS类目Multidisciplinary Sciences
WOS研究方向Science & Technology - Other Topics
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/276647
专题资源环境科学
作者单位MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA
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Alghannam, Maryam,Juanes, Ruben. Understanding rate effects in injection-induced earthquakes[J]. NATURE COMMUNICATIONS,2020,11(1).
APA Alghannam, Maryam,&Juanes, Ruben.(2020).Understanding rate effects in injection-induced earthquakes.NATURE COMMUNICATIONS,11(1).
MLA Alghannam, Maryam,et al."Understanding rate effects in injection-induced earthquakes".NATURE COMMUNICATIONS 11.1(2020).
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