PO.PTA.Pw.VW.PerpMix Function
Description:
Calculates wellbore pressure drop for vertical well in infinite homogeneous reservoir with perpendicular mixed boundaries (boundary 1 - fault, boundary 2 - constant pressure), [psi].
Excel Function Syntax:
=PO.PTA.Pw.VW.PerpMix(time, prod_data, B, Ul, C, Rw, S, Ct, porosity, h, K, L1, L2)
Parameters:
| Parameter | Description |
|---|---|
| time | Elapsed time, [h]. |
| prod_data | Flow rate at surface, [bbl/D] or array of time [h] / flow rate [bbl/D] of production data. |
| B | Formation volume factor, [bbl/STB]. |
| Ul | Viscosity, [cP]. |
| C | Wellbore storage coefficient, [bbl/psi]. |
| Rw | Wellbore radius, [ft]. |
| S | Skin factor, [dimensionless]. |
| Ct | Total compressibility, [1/psi]. |
| porosity | Porosity, [fraction]. |
| h | Net pay thickness, [ft]. |
| K | Permeability, [mD]. |
| L1 | Distance to boundary 1, [ft]. |
| L2 | Distance to boundary 2, [ft]. |