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Investigating the Effect of Least-square Datuming on Imaging VSP Multiples
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 3rd EAGE Workshop on Borehole Geophysics, Apr 2015, cp-447-00018
- ISBN: 978-94-6282-144-6
Abstract
Applying conventional cross-correlation based datuming of VSP multiples to obtain virtual SSP primaries yield virtual data that suffers from low resolution, correlation artefacts, and wavelet distortion. Least-square datuming could be used to deconvolve the acquisition fingerprint, suppress the artefacts, and enhance the resolution of the seismic events in the virtual SSP gathers. We imaged the virtual SSP primaries using Kirchhoff migration and noticed that the LSD enhanced the resolution of the subsurface structure.