PO.IPR.VW.TF.PI.SI
Description
Calculates transient state productivity index for vertical well, [m3/(d.kPa)] (SI units).
Formula
=LAMBDA(time, K, h, Bl, Ul, porosity, Ct, Rw, S, LET(
h_ft, PO.UnitConverter(h, "m", "ft"),
Ct_psi, PO.UnitConverter(Ct, "1/kPa", "1/psi"),
Rw_ft, PO.UnitConverter(Rw, "m", "ft"),
result_STBdpsi, PO.IPR.VW.TF.PI(time, K, h_ft, Bl, Ul, porosity, Ct_psi, Rw_ft, S),
result_STBdpsi * PO.UnitConverter(1, "bbl/d", "m3/d") / PO.UnitConverter(1, "psi", "kPa")))Parameters
| Parameter | Unit | Description |
|---|---|---|
time |
- | Time, [h] |
K |
- | Permeability, [mD] |
h |
m | Reservoir thickness, [m] |
Bl |
- | Liquid formation volume factor, [m3/sm3] |
Ul |
- | Liquid viscosity, [cP] |
porosity |
- | Porosity, [fraction] |
Ct |
1/kPa | Total compressibility, [1/kPa] |
Rw |
m | Wellbore radius, [m] |
S |
- | Skin factor, [dimensionless] |
Examples
| Invocation | Expected |
|---|---|
=PO.IPR.VW.TF.PI.SI(24, 50, 30.48, 1.2, 2, 0.2, 0.0000145, 0.0762, 0) |
0.05419725 |