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Elastic finite-difference modeling of cross-hole seismic data

CENTER FOR LITHOSPHERIC STUDIES THE UNIVERSITY OF TEXAS AT DALLAS, P.O. BOX 688, RICHARDSON, TEXAS 75083
STANDARD OIL PRODUCTION COMPANY ONE LINCOLN CENTER, 5400 LBJ FREEWAY, DALLAS, TEXAS 75240

Abstract

Cross-hole seismic data exhibit unique characteristics not seen in surface survey data or even in vertical seismic profile data. These are, to a large extent, due to the near-horizontal propagation involved. Transmitted, reflected, evanescent, guided, and converted waves are all prominent; these require an elastic algorithm for realistic simulation. Elastic finite-differences are used to synthesize responses (both fixed-time snapshots and seismogram profiles) for a series of two-dimensional models of increasing complexity. Special emphasis is given to guided waves in continuous and segmented low-velocity zones.

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				M. Bouchon and O. Coutant Calculation of synthetic seismograms in a laterally varying medium by the boundary element-discrete wavenumber method Bulletin of the Seismological Society of America, December 1, 1994; 84(6): 1869 - 1881. [Abstract] [PDF]