DOI: 10.1002/2016GL070983
论文题名: Nontrivial clustering of microseismicity induced by hydraulic fracturing
作者: Maghsoudi S. ; Eaton D.W. ; Davidsen J.
刊名: Geophysical Research Letters
ISSN: 0094-8501
EISSN: 1944-8232
出版年: 2016
卷: 43, 期: 20 起始页码: 10672
结束页码: 10679
语种: 英语
英文关键词: clustering
; hydraulic fracturing
; microseismicity
Scopus关键词: Hydraulic fracturing
; Petroleum reservoir engineering
; Sedimentary rocks
; Seismic waves
; Seismology
; Shale
; Shale oil
; Well stimulation
; Aftershock sequence
; Clustering
; Frequency-magnitude distribution
; Hydraulic fracturing methods
; Microseismic response
; Microseismicity
; Seismic hazard assessment
; Spatio-temporal clustering
; Induced Seismicity
英文摘要: For induced microseismicity associated with hydraulic fracturing, the frequency-magnitude distribution is typically characterized by a falloff with increasing magnitude that is significantly faster than for seismicity along active fault systems. This characteristic may arise from a break in scale invariance, possibly due to mechanical layering that typifies fine-grained sedimentary rocks in many shale gas and tight oil reservoirs. The latter would imply the presence of spatiotemporal magnitude correlations. Using three microseismic catalogs for well stimulations in widely separated locations with varying hydraulic-fracturing methods, we show that events with similar magnitudes indeed tend to cluster in space and time. In addition, we show that the interevent time distribution can be described by a universal functional form characterized by two power laws. One exponent can be related to the presence of interevent triggering as in aftershock sequences and is a consequence of the Omori-Utsu law. The other one is a reflection of the intrinsic spatial variation in the microseismic response rates. Taken together, these features are indicative of nontrivial spatiotemporal clustering of induced microseismicity and, hence, of direct relevance for time-dependent seismic hazard assessment. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992316860&doi=10.1002%2f2016GL070983&partnerID=40&md5=1698768868e4f5632e70f7fe36731b1a
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9464
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: Department of Geoscience, University of Calgary, Calgary, AB, Canada
Recommended Citation:
Maghsoudi S.,Eaton D.W.,Davidsen J.. Nontrivial clustering of microseismicity induced by hydraulic fracturing[J]. Geophysical Research Letters,2016-01-01,43(20).