气候变化领域集成服务门户(CCPortal): Correlation Between Poroelastic Stress Perturbation and Multidisposal Wells Induced Earthquake Sequence in Cushing; Oklahoma

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DOI	10.1029/2020GL089366
	Correlation Between Poroelastic Stress Perturbation and Multidisposal Wells Induced Earthquake Sequence in Cushing; Oklahoma
	Deng K.; Liu Y.; Chen X.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:20
英文摘要	Over 100 small- to moderate-sized earthquakes, including an Mw 5.0 event, were detected during September 2015 to November 2016 near the town of Cushing, Oklahoma. The seismic sequence was spatial-temporally linked to four wastewater disposal wells within 4 km. We calculate pore pressure and stress perturbations caused by fluid injection at multiple wells and analyze seismic risk in a Coulomb failure stress framework. Despite being more than an order of magnitude smaller than the pore pressure perturbation, the sign of shear stress change, in the sense of assumed right-lateral fault motion, dictates where earthquakes are induced. Most of the relocated earthquakes are located within areas of positive shear stress changes. Our results suggest that poroelastic stress changes also play an essential role in the wastewater disposal environment, and a strategic design of well locations with respect to fault orientation and direction of motion can help mitigate induced seismic hazard. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Faulting; Pore pressure; Seismic design; Shear stress; Wastewater disposal; Coulomb failure stress; Direction of motion; Earthquake sequences; Fault orientations; Poroelastic stress; Pressure perturbation; Seismic sequence; Stress perturbations; Earthquakes; correlation; Coulomb criterion; earthquake magnitude; faulting; fluid injection; induced seismicity; pore pressure; shear stress; spatiotemporal analysis; waste disposal; Cushing; Oklahoma [United States]; United States
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169550
作者单位	College of Geophysics, Chengdu University of Technology, Chengdu, China; Department of Earth and Planetary Sciences, McGill University, Montreal, QC, Canada; ConocoPhillips School of Geology and Geophysics, University of Oklahoma, Norman, OK, United States
推荐引用方式 GB/T 7714	Deng K.,Liu Y.,Chen X.. Correlation Between Poroelastic Stress Perturbation and Multidisposal Wells Induced Earthquake Sequence in Cushing; Oklahoma[J],2020,47(20).
APA	Deng K.,Liu Y.,&Chen X..(2020).Correlation Between Poroelastic Stress Perturbation and Multidisposal Wells Induced Earthquake Sequence in Cushing; Oklahoma.Geophysical Research Letters,47(20).
MLA	Deng K.,et al."Correlation Between Poroelastic Stress Perturbation and Multidisposal Wells Induced Earthquake Sequence in Cushing; Oklahoma".Geophysical Research Letters 47.20(2020).