PO.IPR.HW.SS.PI.ByJoshi Function
Description:
Calculates steady state productivity index for horizontal well using Joshi method (anisotropic reservoir), [STB/(d.psi)].
Excel Function Syntax:
=PO.IPR.HW.SS.PI.ByJoshi(L, Rw, Re, h, Kz, Kxy, Bl, Ul)
Parameters:
| Parameter | Description |
|---|---|
| L | Length of the horizontal part of the well, [ft]. |
| Rw | Wellbore radius, [ft]. |
| Re | Drainage radius of the horizontal well, [ft]. |
| h | Reservoir thickness, [ft]. |
| Kz | Vertical permeability, [mD]. |
| Kxy | Horizontal permeability, [mD]. |
| Bl | Liquid formation volume factor, [bbl/STB]. |
| Ul | Liquid viscosity, [cP]. |
Used in Blueprints
Horizontal Well PI Comparison
Compare horizontal well productivity index calculations using different correlations. Useful for understanding the sensitivity of PI estimates to the chosen method.