Large data bank improves crude physical property correlations

Abstract

New empirical correlations, based on a large data bank, estimate crude oil physical properties better than previously published industry-standard correlations. The new correlations are for: oil formation volume factor, solution GOR, bubble point pressure, viscosity of gas-free oil, viscosity of gas-saturated oil, viscosity of undersaturated oil, isothermal compressibility of saturated oil, gas gravity correction factor, and conversion factor for changing flash oil formation volume factor to the differential oil formation volume factor. These correlations are a function of such field-measurable parameters as temperature, pressure, separated gas gravity, and tank oil gravity. They were developed from a large data bank covering a broad range of the world's oil. In addition, another data bank of published data verified the correlations.