PO.IPR.VW.PSS.Rate.ByFetkovich.SI
Description
Calculates Fetkovich backpressure IPR flow rate for oil, [m3/d]. Fetkovich (1973) correlation (SI units).
Formula
=LAMBDA(C, n, Pres, Pwf, LET(
C_field, C * PO.UnitConverter(1, "psi", "kPa")^(2*n) / PO.UnitConverter(1, "STB/d", "m3/d"),
Pres_psi, PO.UnitConverter(Pres, "kPa", "psi"),
Pwf_psi, PO.UnitConverter(Pwf, "kPa", "psi"),
result_STBd, PO.IPR.VW.PSS.Rate.ByFetkovich(C_field, n, Pres_psi, Pwf_psi),
PO.UnitConverter(result_STBd, "STB/d", "m3/d")))Parameters
| Parameter | Unit | Description |
|---|---|---|
C |
m3/(d·kPa^2n) | Performance coefficient, [m3/(d·kPa^2n)] |
n |
- | Flow exponent (0.5 to 1.0), [dimensionless] |
Pres |
kPa | Average reservoir pressure, [kPa] |
Pwf |
kPa | Bottom-hole flowing pressure, [kPa] |
Examples
| Invocation | Expected |
|---|---|
=PO.IPR.VW.PSS.Rate.ByFetkovich.SI(0.00000658, 0.8, 17237, 13790) |
19.190085 |