Building complex velocity models using equivalent offset migration (EOM) - a case study

M. Gratziella Kirtland Grech, John C. Bancroft

Equivalent Offset Migration has been used to produce a prestack time migrated section from numerical model data, that provides a better overall image than Kirchhoff prestack time migration using the known velocity model. Better focussing of events and more structural detail make the complex geometry easier to interpret. This improved time migrated section will provide a better starting point for depth migration velocity model building.