In this work, a corresponding-states correlation is presented for prediction of crude oil density in an undersaturated state. The correlation is the extension of corresponding-states liquid densities correlation. The modified corresponding states liquid densities method for predicting
saturated liquid densities was coupled with the Tait equation to predict undersaturated densities. Correlations are proposed for the temperature-dependence of Tait equation parameters. Applying proper mixing and combining rules, we calculated the density of 26 crude-oil samples, mainly from
Iranian reservoirs. The mixtures included a variety of compositions including N2, H2S, CO2, and hydrocarbons. The AAD% for the present method is 0.85%.
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Document Type: Research Article
Department of Chemical Engineering, School of Engineering,Persian Gulf University, Bushehr, Iran
Department of Chemistry, School of Sciences,Persian Gulf University, Bushehr, Iran
Department of Chemical and Petroleum Engineering,Sharif University of Technology, Tehran, Iran
Publication date: June 17, 2011