Components view
The Components view contains a list of Equation of State Set (EOSSET) component properties. The master table for the Component view contains the different EOSSETs in your simulation. Key fields for the master table include:
Active Determines whether EOSSET is active. Inactive regions are not written to the deck.
Name Name of PVT region. Used only in the application.
Region ID ID region used in the deck.
Components Table tab
The components table defines the components of the reservoir fluid.
COMPNAME Identifies the component that will be used. There are two types of components; program components and user components. The components in the drop-down box are program components. They are as follows:
CH4 (or C1) FC6 FC26
CH2H6 (OR C2) FC7 FC27
C3H8 (or C3) FC8 FC28
IC4 FC9 FC29
NC4 FC10 FC30
IC5 FC11 FC31
NC5 FC12 FC32
NC6 FC13 FC33
NC7 FC14 FC34
NC8 FC15 FC35
NC9 FC16 FC36
NC10 FC17 FC37
NC16 FC18 FC38
N2 FC19 FC39
CO2 FC20 FC40
H2S FC21 FC41
H2O FC22 FC42
TOLUENE FC23 FC43
BENZENE FC24 FC44
CYCLO-C6 FC25 FC45
User components can be added by simply typing a name into the COMPNAME column.
Hydrocarbon Flag indicating if the component is a hydrocarbon.
Critical Pressure Identifies the critical pressure.
Critical Temperature Identifies the critical temperature.
Acentric factor Identifies the acentric factor.
Mol. Weight Identifies the molecular Identifies the acentric factor.
Volume Shift Specifies the volume shifts to be applied to the equation of state molar volumes.
Critical Compress. Factor Identifies the critical compressibility factor.
OMEGA Identifies directly the equation of state omega-A parameter.
OMEGB Identifies directly the equation of state omega-B parameter.
Specific Gravity Identifies specific gravity.
Average normal boiling point Identifies the average normal boiling point.
Parachor Identifies the parachor.
Enthalpy Coeff A Thermal options indicating input of ideal gas enthalpy coefficient.
Enthalpy Coeff B Thermal options indicating input of ideal gas enthalpy coefficient.
Enthalpy Coeff C Thermal options indicating input of ideal gas enthalpy coefficient.
Enthalpy Coeff D Thermal options indicating input of ideal gas enthalpy coefficient.
Enthalpy Coeff E Thermal options indicating input of ideal gas enthalpy coefficient.
Enthalpy Coeff F Thermal options indicating input of ideal gas enthalpy coefficient.
Component Properties tab
The Component Properties tab displays properties that affect the components.
MODEL The input of the fluid component model to use for the simulation.
TRES Specifies the reservoir temperature. Clicking on the button for TRES opens the Reservoir Temperature settings editor. There are two options; constant and linearly varying with depth.
SOLIDMODEL Has four parameters required by the isothermal asphaltene precipitation model used by the GEM™ simulator.
DERIVATIVEMETHOD Functionally a numerical methods keyword. Options include:
MIXED
NUMBERALL
NUMERFLOW
PSAT Specifies the saturation pressure of the original reservoir fluid.
PHASEID Specifies one of the several methods for identifying single phase reservoir fluids as oils or gases when they are found in grid block during simulation. There are five options to choose from:
OIL
GAS
CRIT
DEN
TCMIX
MIXVC The exponent used to compute the mixture critical volume for use in the Jossi, STiel, and Thodos formula.
VISCOR Specifies how the hydrocarbon phase viscosities are to be computed. Options include:
MIX
HZYT
LE
PEDERSEN
MODPEDERSEN
VISCOEFF The coefficients for the Jossi, Stiel and Thodos correlation, or for the Pedersen or Modified Pedersen correlations. Clicking on the button for VISCOEFF opens the Coefficients correlations editor.
SOLUBILITY Indicates that solubility of components in the aqueous phase may be modeled. Options include:
HENRY
IDEAL
If either HENRY or IDEAL is selected, the Aqueous Phase Solubility table will be displayed.
DENROCK Rock mass density. This is the actual rock density, not including its pore space.
ADSCST Introduces the parameter for the Langmuir isotherm model.
REFPW Specifies the reference pressure for water density.
CW Specifies the isothermal compressibility for water.
DENW Specifies the mass density of water at reservoir conditions.
RHOW Specifies the molar density of water at reservoir conditions.
VISW Specifies a constant water viscosity value.
PVC3 Specifies the parameter used to calculate the interaction coefficients between hydrocarbon-hydrocarbon component pairs (components both having Hydrocarbon? Set in the Component Table).
AQUEOUS-DENSITY The method to be used for calculating density of the aqueous phase in the reservoir. Aqueous density at the surface must be entered with RHOWS or DENWS. There are 2 options available:
LINEAR Indicates that aqueous molar density will be calculated as a linear function of pressure. This is the default method.
ROWE-CHOU Indicates that the aqueous molar density will be calculated from the Rowe-Chou correlation.
AQUEOUS-VISCOSITY The viscosity model for aqueous phase.
SALINITY The salinity of the aqueous phase in terms of equivalent NaCl concentration for use with AQUEOUS-VISCOSITY model.
VISVC The component pseudo-critical volumes used to compute the mixture critical volume for use in the Jossi, Stiel, and Thodos formula (Set in the Component Properties tab).
The Coefficients Correlations Editor will show the default correlations for the chosen model in the left column. The editable values are in the right column.
Aqueous Components Table tab
The Aqueous phase solubility table defines the solubility of components in the aqueous phase. This tab will become visible when HENRY or IDEAL is selected for SOLUBILITY on the Component Properties tab.
Mineral Components Table tab
The Mineral Components table allows you to define weights and densities for mineral components.