Simulation of the high-pressure phase equilibria of hydrocarbon-water/brine systems

You-Xiang Zuo, Erling Halfdan Stenby, Tian-Min Guo

Research output: Contribution to journalJournal articleResearchpeer-review


The major objectives of this work are: (1) extend the modified Patel-Teja (MPT) equation of state proposed for aqueous electrolyte systems (Zuo and Guo, 1991) to describe the liquid-liquid and vapor-liquid-liquid equilibria of hydrocarbon-water/brine systems through introducing an unconventional mixing rule to the energy parameter "a", (2) apply the revised MPT model (MPT2 model) to predict the effects of the coexisting water/formation water phase on the high-pressure phase behavior of reservoir oils/gas condensates, of which no experimental data is available.The predicted results indicate that the influence of the coexisting aqueous phase is not negligible.
Original languageEnglish
JournalJournal of Petroleum Science and Engineering
Pages (from-to)201-220
Publication statusPublished - 1996

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