The Open Petroleum Engineering Journal


ISSN: 1874-8341 ― Volume 12, 2019

New Correlations for Predicting the Thermodynamic Properties of Supercritical Carbon Dioxide

The Open Petroleum Engineering Journal, 2012, 5: 42-52

Liang-Biao Ouyang

Chevron Corporation, P. O. Box 5095, Bellaire, TX 77402-5095, USA.

Electronic publication date 15/6/2012
[DOI: 10.2174/1874834101205010042]


Six new accurate and explicit correlations have been proposed in the present paper to predict the key thermodynamic properties of carbon dioxide under operational conditions anticipated for a typical carbon capture and sequestration (CCS) project – pressure = 1100 – 9000 psia (7 – 62 MPa) and temperature = 40 – 100 °C. These physical properties include entropy, enthalpy, internal energy, thermal conductivity, Joule-Thomson coefficient, and speed of sound, which all play an important role in controlling the PVT and thermodynamic behaviors of carbon dioxide associated with its flow through pipelines, wellbores, chokes, valves, and so on. The new correlations can predict carbon dioxide properties well matched to the high accuracy carbon dioxide property data available through the National Institute of Standards and Technology (NIST) web database [1].

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