PO.VFP.Gas.Pin.SI

Description

Calculates inlet pipe pressure for single phase pipe flow of gas (compressible fluid), [kPa] (SI units).

Formula

=LAMBDA(Qg, P_out, T, SG_gas, Ug, Z, pipe_ID, pipe_length, pipe_roughness, pipe_angle, LET( Qg_mmscfd, PO.UnitConverter(Qg, "sm3/d", "mmscf/d"), P_out_psi, PO.UnitConverter(P_out, "kPa", "psi"), T_degF, PO.UnitConverter(T, "degC", "degF"), pipe_ID_in, PO.UnitConverter(pipe_ID, "cm", "in"), pipe_length_ft, PO.UnitConverter(pipe_length, "m", "ft"), result_psi, PO.VFP.Gas.Pin(Qg_mmscfd, P_out_psi, T_degF, SG_gas, Ug, Z, pipe_ID_in, pipe_length_ft, pipe_roughness, pipe_angle), PO.UnitConverter(result_psi, "psi", "kPa")))

Parameters

Parameter Unit Description
Qg sm3/d Gas rate, [sm3/d]
P_out kPa Outlet pipe pressure, [kPa]
T degC Temperature at middle point of the pipe, [degC]
SG_gas - Gas specific gravity, [dimensionless]
Ug - Gas viscosity, [cP]
Z - Gas compressibility factor (Z), [dimensionless]
pipe_ID cm Pipe inner diameter, [cm]
pipe_length m Pipe length, [m]
pipe_roughness - Pipe relative roughness, [dimensionless]
pipe_angle - Pipe angle from horizontal, [degrees]. Horizontal flow: angle = 0; Vertical well producer: angle = 90; Vertical well injector: angle = -90

Examples

Invocation Expected
=PO.VFP.Gas.Pin.SI(28317, 6895, 93.33, 0.65, 0.015, 0.85, 6.35, 914.4, 0.0006, 90) 7377.6733

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