Accurate time-to-depth conversion is essential for generating, assessing prospects and well planning. handles depth conversion making use of seismic and well velocities, which has significant advantages over typical single-function conversion. Seismic velocities were improved in terms of higher resolution (left figure) and structural anisotropy. The result of geostatistical Kriging shows anisotropy.

Indicating rock property changes in NNW direction. As a result of checkshot calibration, the prospect size was 40% smaller. Only one check-shot made the difference for this work in a 200-block offshore area. Geostatistical methods for calibration was advantageous. The drilling result confirmed that our evaluation was accurate.