EAGE E-Lecture: Virtual Seismology: monitoring the subsurface with virtual sources and recivers by Kees Wapenaar

 

Pubblicato il 25 mar 2019

https://www.youtube.com/watch?v=QkbWXCvxs_w

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LO STUDENT CHAPTER DI PISA

Lo “Student Chapter SEG” di Pisa è stato istituito nel 2009, con lo scopo di promuovere e divulgare le discipline Geofisiche, e di favorire la collaborazione e lo scambio di conoscenze tra i suoi partecipanti e tutti coloro che condividono interesse per la Geofisica....

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EAGE E-Lecture: Virtual Seismology: monitoring the subsurface with virtual sources and recivers by Kees Wapenaar

This E-Lecture introduces virtual seismology: monitoring the subsurface with virtual sources and receivers, which is a new methodology to create virtual sources and 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 method is not only useful for reflection imaging but is has also large potential for monitoring induced seismicity, characterizing the source properties and forecasting the response to potential future induced earthquakes. This will be demonstrated with numerical models and preliminary real-data results.​