•Antelope # 15-23 on the apex of the anticline
•FMI and dipole sonic logs
–FMI shows mostly bedding planes near horizontal
–But at many levels dip exceeds 30° and 40° - near vertical
–Strike direction agrees with the fast S-wave direction
•For optimal calibration with PS-wave data
–Cross-dipole should be acquired (not available)
–Quantitative estimates of azimuthal anisotropy
–Orientation and magnitude of anisotropy
•Near-offset S-wave source VSPs
–S-wave splitting at same seismic wavelengths
Discussion: Borehole information for calibration