Hybrid wave equation traveltime+waveform inversion of crosswell seismic data

Changxi Zhou; Wenying Cai; Yi Luo; Gerard T. Schuster; Siamak Hassanzadeh

doi:10.1117/12.164829

1 December 1993 Hybrid wave equation traveltime+waveform inversion of crosswell seismic data

Changxi Zhou, Wenying Cai, Yi Luo, Gerard T. Schuster, Siamak Hassanzadeh

Proceedings Volume 2033, Mathematical Methods in Geophysical Imaging; (1993) https://doi.org/10.1117/12.164829
Event: SPIE's 1993 International Symposium on Optics, Imaging, and Instrumentation, 1993, San Diego, CA, United States

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.

Citation Download Citation

Changxi Zhou, Wenying Cai, Yi Luo, Gerard T. Schuster, and Siamak Hassanzadeh "Hybrid wave equation traveltime+waveform inversion of crosswell seismic data", Proc. SPIE 2033, Mathematical Methods in Geophysical Imaging, (1 December 1993); https://doi.org/10.1117/12.164829

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