Excel Function
PressureGradientHarBrown
Description:
Calculates pressure gradient for multiphase pipe flow using Hagedorn and Brown (1965) correlation with Griffith modification, [psi/ft]. Developed for vertical, upward flow and recommended only for near-vertical wellbores.
Excel Function Syntax:
PressureGradientHarBrown(Ql, Rho_l, Ul, Qg, Ug, SGgas, zFactor, IFTgl, pipeID, pipeRoughness, P, T)
Online Calculator:
| Parameter | Value | Description |
|---|---|---|
| Ql | Liquid rate, [bbl/d]. | |
| Rho_l | Liquid density, [lb/ft3]. | |
| Ul | Liquid viscosity, [cP]. | |
| Qg | Gas rate, [mmscf/d]. | |
| Ug | Gas viscosity, [cP]. | |
| SGgas | Gas specific gravity, [dimensionless]. | |
| zFactor | Gas compressibility factor (Z), [dimensionless]. | |
| IFTgl | Liquid-gas interfacial (surface) tension, [dynes/cm]. | |
| pipeID | Pipe inner diameter, [in]. | |
| pipeRoughness | Pipe relative roughness, [dimensionless]. | |
| P | Pressure, [psia]. | |
| T | Temperature, [degF]. | |
| Result |
Related Functions
2 items
InletPressureHarBrown
Calculates inlet pipe pressure for multiphase pipe flow using Hagedorn and Brown (1965) correlation, [psia]. Developed for vertical, upward flow and recommended only for near-vertical wellbores.
OutletPressureHarBrown
Calculates outlet pipe pressure for multiphase pipe flow using Hagedorn and Brown (1965) correlation, [psia]. Developed for vertical, upward flow and recommended only for near-vertical wellbores.