Event-driven seismic interferometry with ambient seismic noise

Conference paper (2010)

Authors

D.S. Draganov Applied Geophysics and Petrophysics - CEG
X Campman Shell International E and P BV
J.W. Thorbecke Applied Geophysics and Petrophysics - CEG
A.R. Verdel Applied Geophysics and Petrophysics - CEG , Shell International E and P BV
C.P.A. Wapenaar Shell International E and P BV, Applied Geophysics and Petrophysics - CEG ,
Research Group
Applied Geophysics and Petrophysics (CEG) (TU Delft)
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Published Date

01-01-2010

Language

English

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Faculty

Civil Engineering & Geosciences

Department

Geoscience and Engineering

Research Group

Applied Geophysics and Petrophysics

Abstract

By cross-correlating recordings of ambient seismic noise, one can retrieve the subsurface reflection response. The quality of the retrieved reflections would depend on the qualities of the ambient noise. In a previous study, we cross-correlated ambient-noise data recorded in a desert area in North Africa and showed that we retrieved reflections. This was done assuming that body-wave noise continuously illuminates the recording array. But this is not necessarily true - noise which carries body-wave information can be present only at certain times. We now use only parts of the recorded noise during the correlation process. These parts contain identifiable body-wave events. We show that the results, retrieved only from the noise containing the events, exhibit clearer reflection arrivals.