Depth conversion using a normalized velocity ? lithology correlation

Abstract

In areas where the exploration objectives require a reliable depth conversion algorithm, two methods are commonly used. In the best of the average velocity techniques, the values of average velocity are derived from the seismic velocities. For the "layer cake" method, the values of interval velocity are from either well velocity surveys, seismic times and well depths or seismic velocities. In both methods, the success of the depth conversion is dependent upon the correlation between the interval velocity and the geology of the layer.