Outlet pressure for multiphase pipe flow by Hagedorn and Brown correlation, [psia]. It was developed for vertical, upward flow and is recommended only for near-vertical wellbores.

Excel Function Syntax

OutletPressureHarBrown(Ql, Rho_l, Ul, Qg, SGgas, IFTgl, pipeID, pipeLength, pipeRoughness, P_in, T)

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Parameter Value Description
Ql Liquid rate, [bbl/d]
Rho_l Liquid density, [lb/ft3]
Ul Liquid viscosity, [cP]
Qg Gas rate, [mmscf/d]
SGgas Gas specific gravity (air=1.0)
IFTgl Liquid-gas interfacial (surface) tension, [dynes/cm]
pipeID Pipe inner diameter, [in]
pipeLength Pipe length, [ft]
pipeRoughness Pipe relative roughness, [dimensionless]
P_in Inlet pipe pressure, [psia]
T Temperature at middle point of the pipe, [degF]