PO.PTA.Pw.VW Function

Description:

Calculates wellbore pressure drop for vertical well in infinite homogeneous reservoir, [psi].

Excel Function Syntax:

=PO.PTA.Pw.VW(time, prod_data, B, Ul, C, Rw, S, Ct, porosity, h, K)

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].