PO.FRAC.PKN.Width.Leakoff.SI
Description
Perkins-Kern-Nordgren (PKN) fracture width with Carter leakoff (large time), [cm] (SI units).
Formula
=LAMBDA(Q, Ul, h, G, nu, C, t, LET(
Q_bblmin, PO.UnitConverter(Q, "m3/min", "bbl/min"),
h_ft, PO.UnitConverter(h, "m", "ft"),
G_psi, PO.UnitConverter(G, "kPa", "psi"),
C_ft, PO.UnitConverter(C, "m", "ft"),
result_in, PO.FRAC.PKN.Width.Leakoff(Q_bblmin, Ul, h_ft, G_psi, nu, C_ft, t),
PO.UnitConverter(result_in, "in", "cm")))Parameters
| Parameter | Unit | Description |
|---|---|---|
Q |
m3/min | Injection rate (one wing), [m3/min] |
Ul |
- | Fluid viscosity, [cP] |
h |
m | Fracture height, [m] |
G |
kPa | Shear modulus, [kPa] |
nu |
- | Poisson's ratio, [dimensionless] |
C |
m/sqrt(min) | Carter leakoff coefficient, [m/sqrt(min)] |
t |
- | Pumping time, [min] |
Examples
| Invocation | Expected |
|---|---|
=PO.FRAC.PKN.Width.Leakoff.SI(0.159, 2, 30.48, 22.62, 0.25, 0.001, 10) |
7.418896 |