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Introduction to Petroleum Engineering (Production) Assignment#01 (Well Deliverability) Total Mark: 100% Assume that oil is being produced from a well that is deviated 45° from vertical, oil gravity is (see next page), the internal diameter of tubing is ID=1.5 in. with a relative roughness of 0.008. It is a single phase oil reservoir with very low PE Reservoir operates under pseudo steady-state condition = (see next page), = 10 md, b = 40jt,p = 4500 psi, u = 5 P, B = 1 RB/STB, = 0.19, S, = 0.34, r2 = 0.328 ft, s=0, r, = 4000 A L=100009 1- Calculate flow rate from the reservoir to wellbore for different bottomhole pressures (pvr=0, pz=300psi, 1000 psi, 1800 psi, 3000psi). State all the calculations. (15%) 2- Plot the IPR curve (5%) 3- Develop VIP curve for the wellhead pressure of 20 psi, at least, with five points (q=1 STB/day, three by your choice, and maximum flow rate obtained for State all the calculations. (15%) 4- What will be the expected production rate and the corresponding Pas, if the wellhead pressure is 20 psi? (5%) 5- Plot another IPR curve by assuming average reservoir pressure drops from 4500 ps to 3500 and calculate well deliverability for the new condition; use the VLP obtained in part#3. State all the calculations and describe your findings (15%) 6- Plot different IPR curves by assuming different well skin factors -3 and 25, and calculate well deliverability for each of them; use the VIP obtained in part#3. State all the calculations and describe your findings (20%) p 4500 psi, 7- Plot a new VLP curve and calculate well deliverability, for the base case, (average reservoir pressure of 4500, and skin factor of zero), if the tube is replaced by a new one with relative roughness of 0.00005 and diameter of 2 in State all the calculations and describe your findings (25%) Set# Density (lb=/ft²) Permeability (md) 1 49 80 2 49 85 3 49 90 4 49 95 5 50 80 6 50 85 7 50 90 8 50 95 9 51 80 10 51 85 11 51 90 12 51 95 13 52 80 14 52 85 15 52 90 16 52 95 17 53 80 18 53 85 19 53 90 20 53 95

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