@Article{ober:1998:seismic4, author = {Curtis C. Ober and Ron A. Oldfield and David E. Womble and John Van Dyke}, title = {Seismic imaging on the {I}ntel {P}aragon}, journal = {Computers \& Mathematics with Applications}, year = {1998}, volume = {35}, number = {7}, pages = {65 - 72}, note = {Advanced Computing on Intel Architectures}, DOI = {10.1016/S0898-1221(98)00033-9}, keywords = {Oil search}, abstract = {A key to reducing the risks and costs associated with oil and gas exploration is the fast, accurate imaging of complex geologies, such as salt domes in the Gulf of Mexico and overthrust regions in U.S. onshore regions. Prestack depth migration generally yields the most accurate images, and one approach to this is to solve the scalar-wave equation using finite differences. Current industry computational capabilities are insufficient for the application of finite-difference, 3-D, prestack, depth-migration algorithms. A 3-D seismic data can be several terabytes in size, and the multiple runs necessary to refine the velocity model may take many years. The oil companies and seismic contractors need to perform complete velocity field refinements in weeks and single iterations overnight. High-performance computers and state-of-the-art algorithms and software are required to meet this need. As part of an ongoing ACTI project funded by the U.S. Department of Energy, we have developed a finite-difference, 3-D prestack, depth-migration code for the Intel Paragon. The goal of this work is to demonstrate that massively parallel computers (thousands of processors) can be used efficiently for seismic imaging, and that sufficient computing power exists (or soon will exist) to make finite-difference, prestack, depth migration practical for oil and gas exploration.} } % BibTeX bibliography file