Using bremmer series for modelling elastic reflection responses in 1.5d media

We develop a seismic modelling scheme that construct wavefields in elastic 1.5D media by using the Zoeppritz equations and exploiting the mechanics of the Bremmer series. The modified modelling algorithm allows to construct the wavefield in an iterative manner and provides access to upgoing and downgoing wavefield components at all depth...

Full wavefield least squares reverse time migration

Waveform inversion based on least-squares reverse time migration (LSRTM) usually involves Born modeling, which models the primary-only data. As a result the inversion process handles only primaries and corresponding multiple elimination pre-processing of the input data is required prior to imaging and inversion. Otherwise, multiples left in...

Full wavefield migration, using internal multiples for undershooting

Full wavefield migration (FWM) is an inversion-based imaging algorithm that utilizes the complete reflection measurements: primaries as well as all multiples, both surface and internal. Using multiples in the imaging can extend the illumination of the subsurface. In this paper we concentrate the study on the internal scattering that can be...