Postmigration, the detailed velocity model allowed for a moreeffective demultiple because tighter constraints could be applied andthe anisotropic imaging ensured a stable offset response for stacking.The data were stacked into partial-angle stacks with angle ranges of5° to 20° for near, 15° to 30° for mid-, 25° to 40° for far, and 35° to50° for ultrafar. Prior to inversion, the partial-angle stacks wereconditioned further through the removal of random noise, spectralbalancing, and residual time alignment. Amplitude compensationvia a long-gate automatic gain control (AGC) was applied to counter