PO.MBE.Ce.UnSat.Oil
Description
Calculates effective compressibility for undersaturated oil reservoir, [1/psi].
Syntax
=PO.MBE.Ce.UnSat.Oil(co, cw, cf, Swc)Parameters
| Parameter | Description |
|---|---|
| co | Oil compressibility, [1/psi]. |
| cw | Water compressibility, [1/psi]. |
| cf | Formation compressibility, [1/psi]. |
| Swc | Connate water saturation, [fraction]. |
SI Unit Version
Lambda Name
PO.MBE.Ce.UnSat.Oil.SIFormula
=LAMBDA(co, cw, cf, Swc, LET(
co_1psi, PO.UnitConverter(co, "1/kPa", "1/psi"),
cw_1psi, PO.UnitConverter(cw, "1/kPa", "1/psi"),
cf_1psi, PO.UnitConverter(cf, "1/kPa", "1/psi"),
result_1psi, PO.MBE.Ce.UnSat.Oil(co_1psi, cw_1psi, cf_1psi, Swc),
PO.UnitConverter(result_1psi, "1/psi", "1/kPa")))SI Parameters
| Parameter | Unit | Description |
|---|---|---|
co |
1/kPa | Oil compressibility, [1/kPa] |
cw |
1/kPa | Water compressibility, [1/kPa] |
cf |
1/kPa | Formation compressibility, [1/kPa] |
Swc |
- | Connate water saturation, [fraction] |
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.MBE.Ce.UnSat.Oil.SI - In Refers to, paste the LAMBDA formula without the trailing invocation
(...) - Click OK
Now use =PO.MBE.Ce.UnSat.Oil.SI(...) anywhere in your workbook.