3. An oil well in a reservoir with the following production data given in the following starts production. (a) Determine the time required for the reservoir to become finite acting (or the time to reach pseudo steady-state); (b) Calculate the bottom hole flowing pressure after 1 hour and after 15 days of production. Data: External Radius, re, 1452 ft; Wellbore Radius, rw 0.25 ft; Total Compressibility, ct, 1x10-6 psi-1; Oil Viscosity, , 2.0 cp; Formation Porosity, 0, 0.25; Formation Thickness, h, 20 ft; Formation Permeability k, 250 mD; Initial Reservoir Pressure, P. 3,000 psia; Oil Production Rate, q, 500 STB/D: Oil Formation Volume Factor, B., 1.2 bbl/STB: Reservoir Permeability, k 100 mD