It is economically important to describe reservoir properties by using different information such as petrophysical, seismic, geological and production data. Identification of petrophysical parameters such as porosity, lithology and hydrocarbon saturation in reservoir model can be effective in decision making in high economical risk (e.g. drilling) .So the cost of exploration and production could be reduced by predicting reservoir parameters.
The aim of this report is to review some applications of well logs and rock physics studies in order to establish models relating elastic parameters (e.g. acoustic impedance and Poisson ratio) and reservoir properties (e.g. porosity, lithology and pore fluid distribution). As a result, these extracted models can be used for quantitative seismic interpretation.
Chapter one of this report is about principles of rock physics. In chapter two we go through general aspects of carbonate reservoir elastic properties and Gassmann equation applicability in these reservoirs. Finally in chapters three and four some case studies and their results are discussed.