SEGJ Technical Conference


Hybrid optimization for prediction and suppression of long-period multiples


Abstract
Multiple suppression remains one of the key challenges in reflection data processing. In order to select the optimum workflow and algorithms for multiple suppression, detailed investigation for both the characteristics of multiple reflections and data acquisition geometries is indispensable. We proposed practical approach to visualization and prediction of various multiple reflections, concentrating the pattern recognition and reflection strength of surface-related and interbed multiples, followed by the identification for multiple raypath using wavefront construction method. The complex multiples can be estimated by the data-driven algorithm such as SRME(Surface-related Multiple Elimination) in addition to the deterministic approach based on multiple periodicity and residual moveout. The hybrid method of the identification and visualization of predicted multiples have proven to be quantitative interpretation tool for both stratigraphic analysis and reservoir characterization.