Excel Function
ProdIndexPSS
Description:
Calculates pseudosteady state productivity index for vertical well, [STB/(d.psi)].
Excel Function Syntax:
=ProdIndexPSS(K, h, Bl, Ul, Re, Rw, S)
Parameters:
| Parameter | Description |
|---|---|
| K | Permeability, [mD]. |
| h | Reservoir height, [ft]. |
| Bl | Formation volume factor, [bbl/STB]. |
| Ul | Liquid viscosity, [cP]. |
| Re | Drainage radius, [ft]. |
| Rw | Wellbore radius, [ft]. |
| S | Skin factor, [dimensionless]. |
Usage Examples
Excel formula examples for ProdIndexPSS
| Formula | Result |
|---|---|
=ProdIndexPSS(50, 40, 1.25, 2, 1500, 0.354, 3)Calculate pseudosteady state PI for vertical well | 0.53 |
Related Theory
1 item
Well Productivity Index
Well Performance
Related Functions
5 items
FlowRatePSS
Calculates pseudosteady state production flow rate, [STB/d].
FlowRatePSSVogel
Calculates Vogel inflow performance for pseudosteady state flow, [STB/d].
ProdIndexHorWellBO
Calculates pseudosteady state productivity index for horizontal well using Babu-Odeh method for a box-shaped, anisotropic reservoir, with a well placed parallel to X(box length)-direction, [STB/(d.psi)].
ProdIndexHorWellBO2
Calculates pseudosteady state productivity index for horizontal well using Babu-Odeh method for a box-shaped, anisotropic reservoir, with a well centrally placed parallel to X(box length)-direction, [STB/(d.psi)].
TimeToPSS
Calculates time to pseudosteady state for regular shape drainage area, [h].