1887

Abstract

Summary

Full waveform inversion (FWI) is capable of handling multicomponent borehole seismic data and reveals quantitative values of the subsurface medium properties, including compressional and shear-wave velocities. Careful treatment of the source wavelet is crucial for FWI success and is challenging task for land data because of the high variability of downgoing wavelets for different source positions caused by variations of near surface conditions. We present a feasibility study of anisotropic elastic FWI for the land walkaway vertical seismic profiling (VSP) data acquired in northeast British Columbia, Canada, with a vibrator source. FWI explained the data at medium frequencies and recovered a layered structure of the subsurface that agrees with reasonable accuracy with sonic measurements. The inverted source signature and shallow part of the model compensated for the variations of the downgoing wavelet.

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/content/papers/10.3997/2214-4609.20141413
2014-06-16
2024-03-29
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References

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