Imaging complex structures with semirecursive Kirchhoff migration

摘要

I present a semirecursive Kirchhoff migration algo- rithm that is capable of obtaining accurate images of complex structures by combining wave-equation datum- ing and Kirchhoff migration. The method is successful because breaking up the complex velocity structure into small depth regions allows traveltimes to be calculated in regions where the computation is well-behaved and where the computation corresponds to energetic arrivals.