Interferometric, Target-Enclosing Waveform Inversion: a Comparison of Approaches

Abstract
We present a new target-enclosing full waveform inversion (FWI) method based on a interferometric objective function, where the inversion is driven by the misfit between the wavefields reconstructed in a subdomain of interest via the convolution and correlation representation formulas. The method is fully local in the sense that it does not depend on the reconstruction of the physical properties outside the local domain, and only requires a kinematic velocity model estimate for redatuming. We compare the proposed method to another fully local FWI method based on the convolution representation formula and to full-model surface-data FWI. We demonstrate the potential of the proposed interferometric full waveform inversion method to achieve higher resolution images at a comparable or lower cost than the other methods.

Citation
Zheglova, P., Ravasi, M., Vasconcelos, I., & Malcolm, A. (2022). Interferometric, Target-Enclosing Waveform Inversion: a Comparison of Approaches. 83rd EAGE Annual Conference & Exhibition. https://doi.org/10.3997/2214-4609.202210525

Acknowledgements
The authors thank King Abdullah University of Science and Technology (KAUST) for funding this work. For computer time, this research used the resources of the Supercomputing Laboratory at King Abdullah University of Science & Technology (KAUST) in Thuwal, Saudi Arabia. Alison Malcolm thanks NSERC, Chevron and InnovateNL for funding.

Publisher
European Association of Geoscientists & Engineers

Conference/Event Name
83rd EAGE Annual Conference & Exhibition

DOI
10.3997/2214-4609.202210525

Additional Links
https://www.earthdoc.org/content/papers/10.3997/2214-4609.202210525

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