A Two-Dimensional Amplitude Study of True-Amplitude Time Migration and Time Remigration – 2.5-D Synthetic Examples
Year: 2024
Type: article
Abstract: In this synthetic study, we present semi-automatically picked true-amplitude comparisons after time migration and time remigration (Tygel et al.,1996; and Oliveira et al.,2023). Since the examples considered are synthetic, emphasis is put on the generally disregarded dimensional aspects of the amplitudes that are modeled to simulate compressional-only seismic data when using a Kirchhoff a p proximation. By bearing in mind in this work that theoretical amplitudes work as “densities”, we show that when comparisons of true-amplitude weighted diffraction-stack time migration and weighted isochrone-stack time remigration are performed, in order to “correct” the dimensions involved certain multiplicative physical constants must come into play and that must be effectively dealt with, for plotting reasons.
Source: Brazilian Journal of Geophysics
Authors: Carlos Augusto Sarmento Ferreira, Karina P. Gomes, Alexandre S. Oliveira
Institutions: Universidade Federal do Acre, National Observatory
Language: English
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4403762259