Abstract

PS-wave Kirchhoff time migration is a crucial step in the converted wave data processing flow. However, because of the different propagation mechanisms of downing-going P-waves and up-going S-waves, its implementation is quite different from that of PP-wave migration. In order to obtain an optimal image, we discuss several important technical issues of PS-wave Kirchhoff time migration, including amplitude weighting, operator anti-aliasing and migration aperture selection, and propose to use cubic convolution interpolation method to calculate the parameters at fine image grids so as to eliminate the influence of non-smoothness caused by traditional linear interpolation method on the migration operator. Tests on real datasets demonstrate the validity of our method.

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 call

Disclaimer: 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.