High Fidelity Imaging with Least Squares Migration

Seismic acquisition is never perfect, and sparsity and irregularity issues lead to suboptimal images when using standard seismic imaging schemes. The remedy of Least-Squares Migration has been topic of research since the early eighties, but the take-up in the industry has been limited so far. This paper describes the experiences obtained for a number of real data cases, which show that the method does deliver and is worth the extra cost and effort.