Abstract

Rock physics provides the link between reservoir properties and the seismic properties that can be observed with a geophysical survey. The reservoir parameters of importance are lithology, porosity, permeability, pore fluid types and saturations, temperature, reservoir effective stress, and pore fluid pressure. The related bulk properties that most impact seismic wave propagation are bulk density, and P- and S-wave velocities. So use of transforms of these important properties with Depth and inter-property regressional transforms becomes more frequent and essential. These relationships are either available in a generalised way in the public archive for different basins world wide, or in published works in different fields, which gets used with appropriate modification pertinent to the working area. However, in the absence of such information either for the basin in a regional sense or for the adjacent field, local trend analysis from the available well data need to done to establish the