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Extending the Velocity Resolution of Waveform Inversion Below the Diving Waves Using AWINormal access

Authors: M. Warner, T. Nangoo, A. Pavlov and C. Hidalgo
Event name: 81st EAGE Conference and Exhibition 2019
Session: FWI Case Studies I
Publication date: 03 June 2019
DOI: 10.3997/2214-4609.201901236
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 679.15Kb )
Price: € 20

The combination of conventional FWI and adaptive waveform inversion is used to invert a broad-band narrow azimuth shallow-water towed-streamer dataset, recovering an accurate velocity model, to 20 Hz, above, within and below high velocity chalk to a total depth of around 5000 m. FWI alone cannot achieve this depth of penetration from this dataset.

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