3-D AVO and migration

The effects of different migrations on AVO are tested using a relatively unstructured data set. In these data, the differences between the migrated and unmigrated data are minimal because the migration does not move data very far. Therefore, any significant differences in AVO must be primarily due to the amplitude preserving effects of the migration. Results are compared to AVO derived from NMO only gathers, which have good correlation to well control.