PO.ESP.Nodal.AOF
Description
Calculates Absolute Open Flow potential, [STB/d].
Syntax
=PO.ESP.Nodal.AOF(P_res, PI, Pb)Parameters
| Parameter | Description |
|---|---|
| P_res | Static reservoir pressure, [psi]. |
| PI | Productivity index, [STB/d/psi]. |
| Pb | Bubble point pressure, [psi]. |
SI Unit Version
Lambda Name
PO.ESP.Nodal.AOF.SIFormula
=LAMBDA(P_res, PI, Pb, LET(
P_res_psi, PO.UnitConverter(P_res, "kPa", "psi"),
PI_field, PI*PO.UnitConverter(1, "psi", "kPa")/PO.UnitConverter(1, "STB/d", "m3/d"),
Pb_psi, PO.UnitConverter(Pb, "kPa", "psi"),
result_STBd, PO.ESP.Nodal.AOF(P_res_psi, PI_field, Pb_psi),
PO.UnitConverter(result_STBd, "STB/d", "m3/d")))SI Parameters
| Parameter | Unit | Description |
|---|---|---|
P_res |
kPa | Static reservoir pressure, [kPa] |
PI |
m3/d/kPa | Productivity index, [m3/d/kPa] |
Pb |
kPa | Bubble point pressure, [kPa] |
How to save as a reusable Excel function
LAMBDA is a built-in Excel feature (Microsoft 365) that lets you create custom functions without VBA. The formula above works as-is when pasted into a cell.
To save a LAMBDA as a reusable named function:
- Go to Formulas → Name Manager → New
- Enter a name, e.g.
PO.ESP.Nodal.AOF.SI - In Refers to, paste the LAMBDA formula without the trailing invocation
(...) - Click OK
Now use =PO.ESP.Nodal.AOF.SI(...) anywhere in your workbook.