Virtual seismology: from hydrocarbon reservoir imaging to induced earthquake monitoring

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Abstract

Recent developments in exploration seismology have enabled the creation of virtual sources and/or virtual receivers in the subsurface from reflection measurements at the earth's surface. Unlike in seismic interferometry, no physical instrument (receiver or source) is needed at the position of the virtual source or receiver. Moreover, no detailed knowledge of the subsurface parameters and structures is required: a smooth velocity model suffices. Yet, the responses to the virtual sources, observed by the virtual receivers, fully account for multiple scattering. This new methodology, which we call virtual seismology, has led to a breakthrough in hydrocarbon reservoir imaging, as is demonstrated in a companion paper (Staring et al., Marchenko redatuming for multiple prediction and removal in situations with a complex overburden). The aim of the present paper is to discuss applications of virtual seismology beyond exploration seismology, in particular induced earthquake monitoring, and to highlight the connections between these applications. The ability to retrieve the entire wave field between (virtual or real) sources and receivers anywhere in the subsurface, without needing a detailed subsurface model, has large potential for monitoring induced seismicity, characterizing the source properties (such as the moment tensor of extended sources along a fault plane), and forecasting the response to potential future induced earthquakes. This will be demonstrated with numerical models and preliminary real-data results.
Original languageEnglish
Title of host publicationProceedings of the American Geophysical Union (AGU) Fall Meeting 2018
Number of pages1
Publication statusPublished - 2018
EventAGU Fall Meeting 2018 - Washington, United States
Duration: 10 Dec 201814 Dec 2018
Conference number: 100
https://fallmeeting.agu.org/2018/

Conference

ConferenceAGU Fall Meeting 2018
Abbreviated titleAGU 100
CountryUnited States
CityWashington
Period10/12/1814/12/18
Internet address

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