1 December 1993 Hybrid wave equation traveltime+waveform inversion of crosswell seismic data
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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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Changxi Zhou, Wenying Cai, Yi Luo, Gerard T. Schuster, Siamak Hassanzadeh, "Hybrid wave equation traveltime+waveform inversion of crosswell seismic data", Proc. SPIE 2033, Mathematical Methods in Geophysical Imaging, (1 December 1993); doi: 10.1117/12.164829; https://doi.org/10.1117/12.164829

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