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Proceedings Paper

Seismic tomography and migration without ray tracing
Author(s): Philippe O. Ecoublet; Satish C. Singh; Geoffrey M. Jackson; Chris H. Chapman
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Paper 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.

Paper Details

Date Published: 1 September 1995
PDF: 10 pages
Proc. SPIE 2571, Mathematical Methods in Geophysical Imaging III, (1 September 1995); doi: 10.1117/12.218507
Show Author Affiliations
Philippe O. Ecoublet, Univ. of Cambridge (United Kingdom)
Satish C. Singh, Univ. of Cambridge (United Kingdom)
Geoffrey M. Jackson, Elf Geoscience Research Ctr. (United Kingdom)
Chris H. Chapman, Schlumberger Cambridge Research (United Kingdom)

Published in SPIE Proceedings Vol. 2571:
Mathematical Methods in Geophysical Imaging III
Siamak Hassanzadeh, Editor(s)

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