R. F. Blakely, J. F. Whaley, M. E. Biggs, A. J. Rudman
Computer generation of "scale functions" to establish the empirical relation between short-normal resistivity and continuous-velocity logs (CVL) in Indiana eliminates human bias in generating pseudovelocity logs for time-depth studies for seismic prospecting. Comparison of plotting techniques for apparent resistivity (Ra) versus transit time (TT) to derive scale function constants (A,B,C) for the expression of pseudotransit time TT^prime = A + (B)Ra-1C/ indicates that a log-log plot with a straight-line least-squares fit yields excellent pseudovelocity logs in form and magnitude. Pseudotravel times from a datum to selected stratigraphic horizons compare favorably with those taken from CVLs.
AAPG Search and Discovery Article #90972©1976 AAPG-SEPM Annual Convention and Exhibition, New Orleans, LA