DOI: 10.1002/2015GL063369
论文题名: A detailed analysis of wastewater-induced seismicity in the Val d'Agri oil field (Italy)
作者: Improta L. ; Valoroso L. ; Piccinini D. ; Chiarabba C.
刊名: Geophysical Research Letters
ISSN: 0094-8750
EISSN: 1944-8481
出版年: 2015
卷: 42, 期: 8 起始页码: 2682
结束页码: 2690
语种: 英语
英文关键词: fractured saturated reservoir
; high-rate disposal well
; wastewater-induced seismicity
Scopus关键词: Oil fields
; Oil shale
; Seismology
; Water injection
; Disposal wells
; High-quality recordings
; Induced seismicity
; Injection pressures
; Pressure perturbation
; Rapid communication
; Saturated reservoirs
; Temporal variation
; Wastewater disposal
; dip
; fault zone
; geophysical method
; location-allocation model
; oil field
; pore pressure
; seismicity
; stress field
; wastewater
; Basilicata
; Italy
; Matera
; Val d'Agri
英文摘要: The Val d'Agri basin in the Apennines seismic belt hosts the largest oil field in onshore Europe. High-quality recordings from a temporary dense network unravel a swarm of 111 small-magnitude events (ML ≤ 1.8) occurred in June 2006 during the first stage of wastewater injection into a high-rate well. High-precision relative locations define a preexisting blind fault located 1 km below the well inside fractured and saturated carbonates where wastewater is reinjected. Seismicity begins 3 h after the initiation of injection. The seismicity rate strictly correlates with injection curves and temporal variations of elastic and anisotropic parameters. Seismicity is induced by rapid communication of pore pressure perturbations along a high-permeability fault zone favorably oriented with respect to the local extensional stress field. Our accurate 3-D locations of 219 events (ML ≤ 2.2) detected by the local operator network after June 2006 concentrate on the preexisting fault measuring 5 km along dip. Over the following 7.5 years, the seismicity rate correlates with short-term increases in injection pressure. ©2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84929512850&doi=10.1002%2f2015GL063369&partnerID=40&md5=861d8af1841261c1089c3ef2debfb3c4
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8366
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: Centro Nazionale Terremoti, Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy
Recommended Citation:
Improta L.,Valoroso L.,Piccinini D.,et al. A detailed analysis of wastewater-induced seismicity in the Val d'Agri oil field (Italy)[J]. Geophysical Research Letters,2015-01-01,42(8).