Abstract

After three decades of shear-wave logging, there are still questions on the robustness of the measurement. The perceived variability in shear-wave slowness measurements comes from two main sources: (1) the dispersive nature of the flexural and quadrupole waves used in the measurement and (2) anisotropy. Dispersion and anisotropy affect shear-wave slowness measurements, and various methods take those effects into account to obtain a more robust shear-wave slowness log.

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