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DOI	10.1785/0120210069
	Seismic Velocity Response to Atmospheric Pressure Using Time-Lapse Passive Seismic Interferometry
	Gradon, Chloe; Brenguier, Florent; Stammeijer, Johannes; Mordret, Aurelien; Hindriks, Kees; Campman, Xander; Lynch, Richard; Boue, Pierre; Chmiel, Malgorzata
通讯作者	Gradon, C (corresponding author), Univ Grenoble Alpes, ISTerre, Grenoble, France.
来源期刊	BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA
ISSN	0037-1106
EISSN	1943-3573
出版年	2021
卷号	111 期号:6 页码:3451-3458
英文摘要	Seismic velocities in the shallow crust down to a few kilometers depth show a remarkable sensitivity to stress perturbations due to the presence of compliant pores, cracks, fractures, and faults. Monitoring temporal changes of seismic velocities can thus provide key insights on dynamic processes affecting the shallow crust such as those related to the atmosphere (rainfall, barometric pressure, and temperature) and those with deeper tectonic and volcanic origins. In this work, we investigate the specific response of the near surface down to 300 m depth to atmospheric pressure variations. We conduct a four month passive seismic monitoring experiment in the desert of Oman using continuous noise recorded at geophones located within five wells. The results show a clear, direct correlation between seismic velocities and barometric pressure variations for monthly transients. At a longer, seasonal temporal scale, seismic velocities are stable, whereas atmospheric pressure shows a clear positive trend. We use the undrained coupled poroelastic theory to model these observations and find that the lack of seasonal velocity changes can be partly explained by the atmospheric pressure that diffuses into the pores with a strong hydraulic diffusivity likely higher than 100 m2=s consistent with the local geology referring to carbonates. Finally, the comparison between the modeled and observed velocity changes leads to estimate a velocity-stress sensitivity on the order of 6:3 x 10-7 Pa-1 which is consistent with previous studies. Using this result for calibration, we find that a sudden step-change drop of velocity of 0.015% occurring in the beginning of October 2019 and corresponding to a stress perturbation likely larger than 240 Pa affected the entire studied area. This small change could be related to a perturbation at greater depth associated with variations in the production rates within the underlying reservoir.
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000722736800002
WOS关键词	PARKFIELD ; PITON ; FAULT
WOS类目	Geochemistry & Geophysics
WOS研究方向	Geochemistry & Geophysics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/374048
作者单位	[Gradon, Chloe; Brenguier, Florent; Mordret, Aurelien; Boue, Pierre] Univ Grenoble Alpes, ISTerre, Grenoble, France; [Stammeijer, Johannes] Shell Global Solut Int BV, Petr Dev Oman Shell Projects & Technol, Amsterdam, Netherlands; [Stammeijer, Johannes; Hindriks, Kees] Shell Global Solut Int BV, Projects & Technol, Amsterdam, Netherlands; [Campman, Xander] Shell Global Solut Int BV, Geophys Operat, The Hague, Netherlands; [Campman, Xander] Shell Global Solut Int BV, Geophys Operat, Rijswijk, Netherlands; [Lynch, Richard] Sisprobe, Grenoble, France; [Chmiel, Malgorzata] Swiss Fed Inst Technol, Zurich, Switzerland
推荐引用方式 GB/T 7714	Gradon, Chloe,Brenguier, Florent,Stammeijer, Johannes,et al. Seismic Velocity Response to Atmospheric Pressure Using Time-Lapse Passive Seismic Interferometry[J],2021,111(6):3451-3458.
APA	Gradon, Chloe.,Brenguier, Florent.,Stammeijer, Johannes.,Mordret, Aurelien.,Hindriks, Kees.,...&Chmiel, Malgorzata.(2021).Seismic Velocity Response to Atmospheric Pressure Using Time-Lapse Passive Seismic Interferometry.BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA,111(6),3451-3458.
MLA	Gradon, Chloe,et al."Seismic Velocity Response to Atmospheric Pressure Using Time-Lapse Passive Seismic Interferometry".BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA 111.6(2021):3451-3458.