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Proceedings Paper

Hybrid wave equation traveltime+waveform inversion of crosswell seismic data
Author(s): Changxi Zhou; Wenying Cai; Yi Luo; Gerard T. Schuster; Siamak Hassanzadeh
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Paper Abstract

We present the first successful waveform inversion of real crosswell seismic data. The methodology is to first invert for the smooth velocity structure by inverting the first arrival traveltimes, and then invert for the fine-detailed velocity structure by waveform inversion of the seismograms. This method will be called WTW or wave equation traveltime and waveform inversion. WTW mitigates the problem of getting stuck in local minima when the starting velocity model is far from the true model. The spatial resolution of the WTW tomogram for Exxon's Friendswood data is about 6 times that of the traveltime tomogram. WTW opens up a new door in monitoring Enhanced Oil Recovery operations in oil and gas fields.

Paper Details

Date Published: 1 December 1993
PDF: 12 pages
Proc. SPIE 2033, Mathematical Methods in Geophysical Imaging, (1 December 1993); doi: 10.1117/12.164829
Show Author Affiliations
Changxi Zhou, Univ. of Utah (United States)
Wenying Cai, Univ. of Utah (United States)
Yi Luo, Univ. of Utah (United States)
Gerard T. Schuster, Univ. of Utah (United States)
Siamak Hassanzadeh, Fujitsu America, Inc. (United States)

Published in SPIE Proceedings Vol. 2033:
Mathematical Methods in Geophysical Imaging
Sergio E. Zarantonello, Editor(s)

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