A Comprehensive Evaluation of Empirical Correlations for Computing the Solubility of CO2 in Water
- Conference
- New Zealand Geothermal Workshop
- Year
- 2002
- Session
- Geochemistry
- Language
- English
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Abstract
A new correlation to estimate the solubility of carbon dioxide in water for the temperature interval of geothermal interest (fi-om 25?C to 350?C) is proposed. This equation was derived from a comprehensive statistical analysis applied to an up-dated thermodynamic database containing experimental solubility data reported in the literature. In addition, a usefbl equation is presented to quantify the propagated error generated through the use of the new polynomial correlation. These equations will be implemented into a new geothermal wellbore simulator (under construction) for modelling the vertical-ascend of two-phase flow in geothermal wells.
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