Prediction of Bulk Moduli and Pressure-Volume-Temperature Data for Petroleum Oils

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Abstract
The increasing use of complex hydraulic systems has resulted in an increasing demand for bulk modulus data. Reliable data are difficult and expensive to obtain. The isothermal secant and tangent bulk moduli of petroleum oils and pure hydrocarbons have been studied in detail. Generalizations of the relationships were achieved. Charts are given to enable prediction of these moduli and densities from 0 to 500 F, over a pressure range of more than 100,000 psi with a minimum of calculation. The average error is less than 1.0%. The only required data are the density of the oil at atmospheric pressure and the desired temperature. Oil type or viscosity does not affect the result.

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