Abstract
Elastic full waveform inversion (EFWI) is a powerful tool to estimate more accurate parameters in the subsurface. However, serious trade-off between the elastic parameters brings great chanllenges into EFWI. In particular, inversion for more realistic low velocity models (e.g., soft seabed) is hampered by inefficient mode-conversion at the shallow part. To mitigate these effects, we present a strategy for gradients calculation by taking account of elastic wave mode decoupling, which implicitly provides different subsets of seismic data for a hierarchical procedure of EFWI. Synthetic examples of a 2D transmission experiment and a 1D soft-seabed model with OBC acquisition demonstrate the benefits of mode decoupling for EFWI.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
