Exploring Inversion Strategies in Image Domain Least Squares Migration
B. Pereira-Dias, C. Guerra, A. Bulcão and R. M. Dias
Event name: First EAGE/SBGf Workshop on Least-Squares Migration
Session: Theory and Implementation I
Publication date: 27 November 2018
Info: Extended abstract, PDF ( 663.01Kb )
Price: € 20
This work explores different approaches for the image domain least-squares migration with Point Spread Functions (PSFs) computed in pre-stack and post-stack domain, using both Reverse Time Migration (RTM) and Kirchhoff migration engines. We also present two applications in 3D datasets of deepwater offshore of Brazil. Both strategies showed that least-squares migration provide an uplift in the migration amplitudes and resolution even on geologically complex models.