Investigating Methods to Enforce the Stationary Zero Phase Assumption Prior to Inversion

This study investigates the extent to which the assumption of constant phase data impact on the results of pre-stack simultaneous inversion. The well-tie procedure provides a means of estimating stationary phase wavelets. Statistical phase estimation techniques capable of estimating non-stationary phase can be used to phase-correct the seismic data to zero phase. Synthetic seismic volumes will be created with non-stationary phase. The results of pre-stack simultaneous inversion will be compared for data that account for non-stationary phase with data that rely on the stationary phase wavelets from the seismic-to-well tie. The implication of this study is that pre-stack simultaneous inversion can now be performed without the drilling of a well.