PO.FRAC.PKN.Pnet
Description
Perkins-Kern-Nordgren (PKN) net fracturing pressure, [psi].
Syntax
=PO.FRAC.PKN.Pnet(w, h, E, nu)Parameters
| Parameter | Description |
|---|---|
| w | Fracture width at wellbore, [inches]. |
| h | Fracture height, [ft]. |
| E | Young's modulus, [psi]. |
| nu | Poisson's ratio, [dimensionless]. |
SI Unit Version
Lambda Name
PO.FRAC.PKN.Pnet.SIFormula
=LAMBDA(w, h, E, nu, LET(
w_in, PO.UnitConverter(w, "cm", "in"),
h_ft, PO.UnitConverter(h, "m", "ft"),
E_psi, PO.UnitConverter(E, "kPa", "psi"),
result_psi, PO.FRAC.PKN.Pnet(w_in, h_ft, E_psi, nu),
PO.UnitConverter(result_psi, "psi", "kPa")))SI Parameters
| Parameter | Unit | Description |
|---|---|---|
w |
cm | Fracture width at wellbore, [cm] |
h |
m | Fracture height, [m] |
E |
kPa | Young's modulus, [kPa] |
nu |
- | Poisson's ratio, [dimensionless] |
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.FRAC.PKN.Pnet.SI - In Refers to, paste the LAMBDA formula without the trailing invocation
(...) - Click OK
Now use =PO.FRAC.PKN.Pnet.SI(...) anywhere in your workbook.