Seismic is processed primarily for imaging, not for quantitative analysis such as inversion. It therefore pays to 'repair' the seismic in a number of ways prior to an inversion. Some SDC steps are listed; often a measurement is made at each trace location, leading to QC maps; these can be smoothed by the user and input for a second run, ensuring trace to trace variability is geological.

The spectra of the partial angle stacks can be mapped onto a reference stack of choice.

AVO consistence amplitude balancing; using a reference horizon, seismic amplitudes as a function of incidence angles can be restored to expected/modelled values.

A joint phase and time shift balance operator can be computed within a user specified time gate and applied to restore target traces to a reference trace.