Excel Function
ProdIndexTF
Description:
Calculates transient state productivity index for vertical well, [STB/(d.psi)].
Excel Function Syntax:
=ProdIndexTF(time, K, h, Bl, Ul, porosity, Ct, Rw, S)
Parameters:
| Parameter | Description |
|---|---|
| time | Time, [h]. |
| K | Permeability, [mD]. |
| h | Reservoir height, [ft]. |
| Bl | Liquid formation volume factor, [bbl/STB]. |
| Ul | Liquid viscosity, [cP]. |
| porosity | Porosity, [fraction]. |
| Ct | Total compressibility, [1/psi]. |
| Rw | Wellbore radius, [ft]. |
| S | Skin factor, [dimensionless]. |
Related Theory
1 item
Well Productivity Index
Well Performance
Related Functions
2 items
FlowRateTF
Calculates transient-state production flow rate, [STB/d].
FlowRateTFVogel
Calculates Vogel inflow performance for transient-state flow, [STB/d].
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