Summary

We have demonstrated the use of regularized inversion with model preconditioning (RIP) with two different imaging operators (downward-continuation migration and common azimuth migration) and a geophysical regularization operator (regularization along the offset ray parameter axis). RIP was applied to a real 2-D line and the 3-D volume that the 2-D line was taken from. In both the 2-D and 3-D cases, RIP was able to improve the resulting image, cleaning up artifacts and increasing the continuity of reflectors through shadow zones caused by poor illumination.