Apply a time depth chart that is created when working in a given area by tying logs to seismic using Kingdom. The time depth chart corrects the sonic log automatically created by GeoSyn by adjusting the sonic's time depth points.
Alternatively, select Tie synthetic to a depth point and then click Edit to select a single depth on the wellbore to tie to the time on the seismic section. Selecting this option requires that you add an invisible log section above the synthetic in order to move it down, as logs don't typically run to surface where time zero is marked. Use the Time Datum dialog to add an invisible log section above the synthetic.