Developed correlations between petrophysical, acoustic and mechanical properties for synthetic sandstone

Abstract

In the evaluation of a petroleum reserve, it is necessary to determine accurately certain petrophysical Properties such as porosity and permeability of the reservoir rocks. In this paper a simulated natural and homogeneous compacted Sandstone rock with known mechanical and petrophysical properties were used. The mechanical properties include grain size, cementing material concentration, and compaction (confining) pressure. The effect of these properties on the petrophysical properties of rock such as permeability and porosity were also measured determined. For the same simulated natural sandstone rocks, Sound wave velocity was measured using an ultra sound tool. Good relationships have been developed between sound wave velocity and other rock properties; porosity, permeability, Cementing conditions at different confining pressures. The results of this study were presented as graphs of simulated lithification factors, porosity, and permeability versus sound wave Velocity.