Seismic tomography and migration without ray tracing

Philippe O. Ecoublet; Satish C. Singh; Geoffrey M. Jackson; Chris H. Chapman

doi:10.1117/12.218507

1 September 1995 Seismic tomography and migration without ray tracing

Philippe O. Ecoublet; Satish C. Singh; Geoffrey M. Jackson; Chris H. Chapman

Author Affiliations +

Proceedings Volume 2571, Mathematical Methods in Geophysical Imaging III; (1995) https://doi.org/10.1117/12.218507
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

In this paper, we present a new approach for travel-time tomography in which ray tracing is not required. Analytical expressions for the travel-time between any two points and the slowness in a 2D inhomogeneous medium are obtained by minimizing the difference between the analytical travel-time function and observed travel-times. The analytical functions satisfy the Eikonal equation everywhere in the medium, and hence provide a unique solution for the slowness. The computation of travel-times using the analytical function can be much faster than that using ray tracing for pre-stack migration. Furthermore, the computation can be carried out during the migration which will avoid storing of the travel-time field and increase the efficiency of pre-stack migration.

Citation Download Citation

Philippe O. Ecoublet, Philippe O. Ecoublet, Satish C. Singh, Satish C. Singh, Geoffrey M. Jackson, Geoffrey M. Jackson, Chris H. Chapman, Chris H. Chapman, } "Seismic tomography and migration without ray tracing", Proc. SPIE 2571, Mathematical Methods in Geophysical Imaging III, (1 September 1995); doi: 10.1117/12.218507; https://doi.org/10.1117/12.218507

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