气候变化领域集成服务门户(CCPortal): Stress Transfer From Opening Hydraulic Fractures Controls the Distribution of Induced Seismicity

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DOI	10.1029/2019JB018794
	Stress Transfer From Opening Hydraulic Fractures Controls the Distribution of Induced Seismicity
	Kettlety T.; Verdon J.P.; Werner M.J.; Kendall J.M.
发表日期	2020
ISSN	21699313
卷号	125 期号:1
英文摘要	Understanding the dominant physical processes that cause fault reactivation due to fluid injection is vital to develop strategies to avoid and mitigate injection-induced seismicity. Injection-induced seismicity is a risk for several industries, including hydraulic fracturing, geothermal stimulation, oilfield waste disposal and carbon capture and storage, with hydraulic fracturing having been associated with some of the highest magnitude induced earthquakes (M > 5). As such, strict regulatory schemes have been implemented globally to limit the felt seismicity associated with operations. In the UK, a very strict “traffic light” system is currently in place. These procedures were employed several times during injection at the PNR-1z well at Preston New Road, Lancashire, UK, from October to December 2018. As injection proceeded, it became apparent to the operator that stages were interacting with a seismogenic planar structure, interpreted as a fault zone, with several ML > 0.5 events occurring. Microseismicity was clustered along this planar structure in a fashion that could not readily be explained through pore pressure diffusion or hydraulic fracture growth. Instead, we investigate the role of static elastic stress transfer created by the tensile opening of hydraulic fractures. We find that the spatial distributions of microseismicity are strongly correlated with areas that receive positive Mohr-Coulomb stress changes from the tensile fracture opening, while areas that receive negative Mohr-Coulomb stress change are quiescent. We conclude that the stressing due to tensile hydraulic fracture opening plays a significant role in controlling the spatiotemporal distribution of induced seismicity. ©2019. The Authors.
英文关键词	Fault Activation; Geomechanical Modelling; Hydraulic Fracturing; Induced Seismicity; Microseismic
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/188039
作者单位	School of Earth Sciences, University of Bristol, Bristol, United Kingdom; Department of Earth Sciences, University of Oxford, Oxford, United Kingdom
推荐引用方式 GB/T 7714	Kettlety T.,Verdon J.P.,Werner M.J.,et al. Stress Transfer From Opening Hydraulic Fractures Controls the Distribution of Induced Seismicity[J],2020,125(1).
APA	Kettlety T.,Verdon J.P.,Werner M.J.,&Kendall J.M..(2020).Stress Transfer From Opening Hydraulic Fractures Controls the Distribution of Induced Seismicity.Journal of Geophysical Research: Solid Earth,125(1).
MLA	Kettlety T.,et al."Stress Transfer From Opening Hydraulic Fractures Controls the Distribution of Induced Seismicity".Journal of Geophysical Research: Solid Earth 125.1(2020).