PO.PVT.Z.ByDAK Function
Description:
Calculates gas compressibility factor (Z) using Dranchuk and Abou-Kassem (1975) equation of state, [dimensionless].
Excel Function Syntax:
=PO.PVT.Z.ByDAK(Ppr, Tpr)
Parameters:
| Parameter | Description |
|---|---|
| Ppr | Pseudo-reduced pressure, [dimensionless]. |
| Tpr | Pseudo-reduced temperature, [dimensionless]. |
Used in Blueprints
Gas PVT Properties
Complete gas PVT property table including Z-factor, gas formation volume factor (Bg), gas compressibility (Cg), gas viscosity, and gas density across pressure range.
Gas Z-Factor Comparison
Compare gas compressibility factor (Z) calculations using different correlations. Shows DAK (Dranchuk-Abou-Kassem) and Brill-Beggs methods side by side.