Enhancing Low-Wavenumber Information in Reflection Waveform Inversion by the Energy Norm Born Scattering

Type
Article

Authors
Wang, Guanchao
Alkhalifah, Tariq Ali
Wang, Shangxu

KAUST Department
Earth Science and Engineering Program
Physical Science and Engineering (PSE) Division
Seismic Wave Analysis Group

Online Publication Date
2020-09-07

Print Publication Date
2021

Date
2020-09-07

Submitted Date
2020-03-11

Abstract
Full waveform inversion (FWI) plays a central role in the field of exploration geophysics due to its potential in recovering the properties of the subsurface at a high resolution. A starting model with ample long wavelength components is essential for the success of most FWI algorithms. Reflection waveform inversion (RWI) is one popular way to invert for the long wavelength velocity components from the short offset seismic data by decomposing the gradient of FWI into migration and tomographic terms. However, the transmitted part of Born scattering in conventional RWI still produces high-wavenumber artifacts, which would hinder its convergence. Thus, in this letter, an efficient nontransmission energy norm Born scattering is used in RWI to overcome the drawbacks of conventional RWI. Finally, we use numerical examples to show that the energy norm Born scattering can provide clean reflection energy from the reflector and enhance the low-wavenumber information in the RWI gradient.

Citation
Wang, G., Alkhalifah, T., & Wang, S. (2020). Enhancing Low-Wavenumber Information in Reflection Waveform Inversion by the Energy Norm Born Scattering. IEEE Geoscience and Remote Sensing Letters, 1–5. doi:10.1109/lgrs.2020.3019536

Acknowledgements
Guanchao Wang wishes to thank the China Scholarship Council for support to study abroad and the Seismic Wave Analysis Group (SWAG) in King Abdullah University of Science and Technology (KAUST) for the collaborative environment.

Publisher
Institute of Electrical and Electronics Engineers (IEEE)

Journal
IEEE Geoscience and Remote Sensing Letters

DOI
10.1109/LGRS.2020.3019536

Additional Links
https://ieeexplore.ieee.org/document/9187558/https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9187558

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