Comparison between Angle and Offset Gathers from Wave Equation Migration and Kirchhoff Migration

摘要: E-31 COMPARISON BETWEEN ANGLE AND OFFSET GATHERS FROM WAVE EQUATION MIGRATION KIRCHHOFF Abstract 1 Computing CRP gathers from prestack migration is very useful for velocity analysis and image improvement through post-migration processing. While offset are easy to compute Kirchhoff depth more difficult Wave Equation Migration methods. We compare two approaches computing wave equation we demonstrate how these can be used improve final signal quality. As expected the data quality on better than