Novel empirical correlations for estimation of bubble point pressure, saturated viscosity

Novel empirical correlations for estimation of bubble point pressure, saturated viscosity and gas

solubility of crude oils

Ehsan Khamehchi;Fariborz Rashidi;Hanieh Rasouli;Amir Ebrahi-mian

【期刊名称】《石油科学（英文版）》 【年(卷),期】2009(006)001

【摘要】Knowledge of petroleum fluid properties is crucial for the study of reservoirs and their development. Estimation of reserves in an oil reservoir or determination of its performance and economics requires a good knowledge of the fluid physical properties. Bubble point pressure, gas solubility and viscosity of oils are the most important parameters in use for petroleum and chemical engineers. In this study a simple-to-use, straight-forward mathematical model was correlated on a set of 94 crude oil data. Three correlations were achieved based on an exponential regression, which were different from conventional empirical correlations, and were evaluated against 12 laboratory data other than those used for the regression. It is concluded that the new exponential equation is of higher precision and accuracy than the conventional correlations and is a more convenient mathematical formulation.

【总页数】5页(86-90) 【关键词】