Computation Examples

Computation examples associated with the BP 2D TTI model as well as a 3D salt dome model are now used to validate the proposed hybrid pseudospectral/finite-difference scheme. Pure P-wave TTI RTM algorithms are implemented to migrate one common-shot-gather (CSG) using both the pseudospectral scheme and the hybrid pseudospectral/finite-difference scheme. For comparison, standard isotropic RTM, conventional VTI coupled equations (equations 5a and 5b of Du et al. (2008)) and TTI coupled equations (equations 2 and 3 of Fletcher et al. (2009)) using the finite-difference scheme are also applied to this CSG.