Thermodynamic Properties of Reservoir Fluids¶
The thermodynamic properties such as density, enthalpy and viscosity of the reservoir fluid phases can be computed in different ways:
by the mean of analytical models
by external databases given in the format accepted by PFLOTRAN
by PVT table formats commonly used in reservoir engineering
The input keyword to enter the properties of a phase is EOS, which stands for Equation of State, followed by the name of the phase.
Water properties are required for all flow models (Gas-Water, Oil-Water, Black Oil, Todd-Longstaff, Solvent, Oil-Water).
Gas properties are required for Gas-Water, Black Oil , Todd-Longstaff and Solvent models.
Oil properties are required for Oil-Water, Black Oil, Todd-Longstaff and Solvent models.
The properties of the solvent component are required for the Solvent model only. For Todd- Longstaff, the gas properties define the solvent properties, as the gas is effectively the solvent for this model.
The following EOS cards are available:
See also the following information about databases: