Mansour A. Almalik, Said El-Din M. Desouky King Saud University Riyadh, Saudi Arabia A compositional correlation has been developed that relates the bubblepoint pressure to the temperature, critical temperature and pressure, and ratio of pentane and heavier components to the sum of nitrogen and methane. This work is part of an overall program to develop correlations for the essential properties of reservoir fluids by using composition, temperature, and pressure. Bubblepoint pressures of different crude oil compositions were experimentally determined and were used to compute the equation's constants. The distribution of th...

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