ptaPd

Description

Dimensionless pressure as defined for constant-rate production

Excel Function Syntax

ptaPd(P, Pi, q, k, h, B, mu)

Online Calculator

Parameter Value Description
P pressure, psi
Pi original reservoir pressure, psi
q flow rate at surface, STB/D
k matrix permeability, md
h net formation thickness, ft
B formation volume factor, res vol/surface vol
mu viscosity, cp
Result