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How Important Are Low Time Frequencies for Offset VSP Full Waveform Inversion?
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 75th EAGE Conference & Exhibition incorporating SPE EUROPEC 2013, Jun 2013, cp-348-00458
- ISBN: 978-90-73834-48-4
Abstract
ok-ahead VSP scenarios), the very low frequencies are necessary. Our results for the offset VSP acquisition geometry are consistent with previously published analysis for surface seismic survey geometries, where information from ‘turning waves’ recorded at large offsets may compensate the lack of very low frequencies in the reflection data.