vX properties of CH4-CO2 and CO2-N2 fluid inclusions: modelling for T < 31°C and P < 400 bars
Thiéry, Régis; Van Den Kerkhof, Alfonsus Martinus; Dubessy, Jean
European Journal of Mineralogy Volume 6 Number 6 (1994), p. 753 - 772
published: Nov 30, 1994
manuscript accepted: Jun 16, 1994
manuscript received: Oct 27, 1993
ArtNo. ESP147050606004, Price: 29.00 €
Abstract vX properties of the binary systems CO2-CH4 and CO2-N2 are described with improved accuracy and for the full ranges of composition and molar volume. PTX conditions of phase transitions including liquid, gas and solid are modelled by the Soave-Redlich-Kwong equation of state, and molar volumes by the Lee-Kesler correlation. The Soave-Redlich-Kwong equation of state has been improved for critical fluids. vX diagrams are presented, which describe phase transitions involving liquid, gas and CO2 solid phases for CO2-CH4 and CO2-N2 fluid inclusions. Also discussed are the conditions of the metastable liquid-liquid-gas phase assemblage.