The Acoustic Travel Time Neutron Porosity Overlay


W. D. M. Smith,
Dresser Atlas



The Neutron Porosity log combined with the Acoustic Travel Time log can provide useful lithology information. The information is most easily extracted by overlaying the log curves. The bonus value of this method of determining lithology is that the best carbonate porosity log, the acoustic travel time log, and only one other porosity log will provide all the required information in most cases.