Abstract

In this paper, we report comparison of developed Conventional wavefield Saving (CS) and Boundary wavefield Saving (BS) approaches for Reverse Time Migration (RTM) implementations using synthetic and field data. Both the approaches are evaluated for their HPC resource utilization and accuracy of the outcome. 2D acoustic wave equation with constant density is used for two-way wave propagation for RTM. The finite difference scheme which is solved using staggered grid approximation is accurate to 10th order in space and 2nd order in time. The developed applications are parallelized over number of CPU nodes of a HPC cluster. The Memory/storage requirement and compute time for BSRTM and CSRTM approaches are discussed in this paper.