Binary System Composition (CH4-H2O)

Binary System Compostion (CH4-H2O)

Reference
1. Mao, Shide; Duan, Zhenhao; Zhang, Dehui; Shi, Lanlan; Chen, Yali; Li, Jing 2011 Thermodynamic modeling of binary CH4-H2O ﬂuid inclusions Geochimica et Cosmochimica Acta Vol: 75, Issue:20,5892-5902
2. Duan, Z., and Mao, S., 2006, A thermodynamic model for calculating methane solubility, density and gas phase composition of methane-bearing aqueous fluids from 273 to 523 K and from 1 to 2000 bar:Geochimica et Cosmochimica Acta , v. 70, p. 3369-3386.
3. Mao, S., Duan, Z., Hu, J., and Zhang, D., 2010, A model for single-phase PVTx properties of CO2-CH4-C2H6-N2-H2O-NaCl fluid mixtures from 273 to 1273 K and from 1 to 5000 bar: Chemical Geology, v. 275, p. 148-160.
4. Mao, S., Duan, Z., and Hu, W., 2009, A vapor-liquid phase equilibrium model for binary CO2-H2O and CH4-H2O systems above 523 0C for application to fluid inclusions:The Journal of Supercritical Fluids , v. 50, p. 13-21.

1. Calculate the composition from hydrate dissolution temperature and vapor volume fraction
Input: T_HLV: Hydrate Dissolution Temperature Fv: Vapor Volume Fraction Output: P_HLV: Hydrate Dissolution Pressure xCH₄: Mole fraction of CH₄	T_HLV: (273-313K) Fv: (0-1)

2. Calculate the Homogenization Properties and Isochore
Input: T: Homogenization Temperature xCH₄: Mole fraction of the CH₄ Output: Homogenization Pressure	Homogenization Temperature: (273-647K) xCH₄: (0-1) Homogenize to Liquid phase Homogenize to Vapor phase.

3. Calcualte the Single Phase Volumetric Property
Input: T:Temperature P:Pressure xCH4:Mole Fraction of CH4 Output: Vm:Molar Volume Density	Temperature: (273-1273K) Pressure: (1-10000bar) xCH4: (0-1) Aqueous Liquid phase Vapor phase or supercritical phase

BACK Home