Refracciones y reflexiones simultáneas en estimación de velocidades mediante tomografía basada en rayos.

Cristhian Dario Zuluaga Herrera; Juan Carlos Muñoz Cuartas

doi:10.24050/reia.v17i33.1321

Simultaneous refractions and reflections in velocity estimation via ray-based tomography.

10.24050/reia.v17i33.1321

Published 2020-02-15

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Simultaneous refractions and reflections in velocity estimation via ray-based tomography. (C. D. Zuluaga Herrera & J. C. Muñoz Cuartas, Trans.). (2020). Revista EIA, 17(33), 33006 pp. 1-15. https://doi.org/10.24050/reia.v17i33.1321

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Abstract

This paper presents a ray tracing strategy with application to seismic tomography problems. The ray tracing is based on the shortest path method. The strategy allows to calculate trajectories of reflected and refracted rays simultaneously, generate rays with several sources and several receivers, choose points in interfaces of interest to generate reflections in said points, among others. Using this approach as a modeling strategy, a traveltime tomography was implemented using algebraic reconstruction techniques, to estimate wave propagation velocities in the subsoil. Different experiments were performed that show the behavior of the ray tracing in different scenarios with refractions and reflections, as well as the results of the use of the ray tracing technique in seismic tomography problems, obtaining positive results in the identification of structures in the subsoil model at a relatively low computational cost.

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Authors

Cristhian Dario Zuluaga Herrera

Universidad de Antioquia
Juan Carlos Muñoz Cuartas

Universidad de Antioquia

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Simultaneous refractions and reflections in velocity estimation via ray-based tomography.