1. Calculate the productivity index of a vertical well in a saturated oil reservoir using Darcy's radial flow equation. The following data are given: Porosity: o = 0.19 Effective horizontal permeability: k = 8.2md Pay zone thickness: h = 53ft Reservoir pressure: P = 5,651psia Bubble point pressure: po = 5, 651psia Fluid formation volume factor: B. = 1.1 Fluid viscosity: Mo = 1.7cp Total compressibility: Ct = 0.0000129psi - 1 Drainage area: A = 640acres (re = 2,980ft) Wellbore radius: 0.328ft Skin factor: S=0 = PW =