Abstract

Seismic velocities have long been used to estimate pore pressure, indeed both these quantities are influenced by variations in rock properties such as porosity, density, effective stress and so on, and high pore pressure zones are often associated with low seismic velocities. This paper describes how some seismic velocity types can be used to estimate pore pressure along sections or in volumes. Some case histories are presented to illustrate their use also in connection with the extension of the study area, the scope of work and time and costs constraints.