next up previous print clean
Next: Acknowledgments Up: Rosales et al.: PS-CAM Previous: Real data results

Discussion and Conclusions

The PS-AMO operator that we used had the advantage of not demanding data in the CRP domain. This operator, as a cascade operation of PS-DMO and its inverse, internally performs the CMP to CRP lateral-shift correction, since the PS-DMO operator does it as well. Therefore, a priori CRP binning was not necessary before applying azimuth moveout to converted-wave data. The PS-AMO operator had two main characteristics: 1) it preserved the resolution of the dipping events, and 2) it corrected for the spatial lateral shift of the common reflection point.

PS-AMO has several applications. In this work, we tested the operator for the problem of irregular geometries; more specifically the converted-wave portion of OBS seismic data. In this case, the geometry-regularization problem was handled in the least-squares sense.

The real data results show that the method proposed in this paper, that is, the PS-AMO geometry regularization followed by PS common-azimuth migration (PS-AMORe), produces results significantly better than the traditional process (PS-NoMoRe).

The PS-AMORe method enhances the main events in the final image, improves the continuity of the reflectors and recovers geological features that are lost with the traditional method (PS-NoMoRe).


next up previous print clean
Next: Acknowledgments Up: Rosales et al.: PS-CAM Previous: Real data results
Stanford Exploration Project
1/16/2007