Simulation of Reflected and Diffracted Waves in Seismograms Before and After Migration

Summary To search for faults and fracture zones from seismic data, various approaches are used to separate the scattered component of the wave field. Scattered or diffracted waves formed on faults or in fracture zones can be distinguished by the wave fields before or after migrated gathers. Migration procedures, as a rule, are focused on building images on reflected waves and the display of diffracted waves on the results of migration can be distorted. It is well known that on CDP stacks, diffracted waves are partially suppressed due to the difference between their kinematics and reflected waves. The aim of this work is to model hodographs and gathers of reflection and diffraction in seismograms before and after migration in order to study the possibility of releasing the energy of the scattered wave field component.