Excel Function
ProdIndexHorWellBO
Description:
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)].
Excel Function Syntax:
=ProdIndexHorWellBO(sizeX, sizeY, sizeZ, Kx, Ky, Kz, L, Rw, Bl, Ul, S, x1, y0, z0)
Parameters:
| Parameter | Description |
|---|---|
| sizeX | Length size of the reservoir drainage box. X-direction, parallel to the well, [ft]. |
| sizeY | Width size of the reservoir drainage box. Y-direction, perpendicular to the well, [ft]. |
| sizeZ | Reservoir height. Z-direction, [ft]. |
| Kx | Horizontal permeability in X-direction, [mD]. |
| Ky | Horizontal permeability in Y-direction, [mD]. |
| Kz | Vertical permeability, [mD]. |
| L | Length of the horizontal part of the well, [ft]. |
| Rw | Wellbore radius, [ft]. |
| Bl | Liquid formation volume factor, [bbl/STB]. |
| Ul | Liquid viscosity, [cP]. |
| S | Skin factor, [dimensionless]. |
| x1 | X location of the heel of the well. For the centrally placed well is equal to 0.5*(boxLength-wellLength), [ft]. |
| y0 | Y location of the heel of the well. For the centrally placed well is equal to 0.5*boxWidth, [ft]. |
| z0 | Z location of the heel of the well. For the centrally placed well is equal to 0.5*reservoirHeight, [ft]. |
Related Theory
2 items
Horizontal Well Productivity
Well Performance
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].
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)].
ProdIndexPSS
Calculates pseudosteady state productivity index for vertical well, [STB/(d.psi)].
TimeToPSS
Calculates time to pseudosteady state for regular shape drainage area, [h].