An 11,000 ft deep well in the reservoir described below is to be produced at a...

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An 11,000 ft deep well in the reservoir described below is to be produced at a rate of 1100 STB/d with an electrical submersible pump when the average reservoir pressure is 4000 psi. The well will be equipped with 3 1/2 in. tubing (E = 0.001, I.D. = 2.992 in.), the surface tubing pressure is 100 psi, and the well casing is 7 in. The minimum suction pressure required by the pump is 250 psi. Well in a saturated oil reservoir kh kv h Pb Treservoir ct Φ Sw yo Yg rw Psurface Tsurface Zsurface Skin Drainage Area = = = = = = = = = = = = = = = = 13 md 1 md 115 ft 4336 psi 220 F 1.25 E-05 0.21 0.3 32 API 0.71 0.406 ft 100 psi 100 F 0.98 gas compressibility factor 4 160 Acres psi-¹ a) 20% Construct the inflow performance relationship curve, what is the flowing bottom hole pressure, explain the reason behind the equation you used. b) 25% Calculate one point on the vertical flow performance curve for this well under natural reservoir flow conditions if the gas rate is 0.005 mmscf/d in addition to the oil rate of 1100 stb/d. If this vertical flow performance curve is a horizontal line what is the operating point of this well (i) assume that the flow is in the bubble flow regime (ii) use the pressure gradient at the top of the tubing c) 15% Determine the required specifications for an electrical submersible pump for this application: (1) What is the minimum pump setting depth (2) If the pump is set 150 ft above the bottom of the well, what is the suction pressure d) 25% (3) If the pump is set 150 ft above the bottom of the well, what is the discharge pressure (4) How much pressure is generated across this pump (5) What is the minimum number of required pump stages An 11,000 ft deep well in the reservoir described below is to be produced at a rate of 1100 STB/d with an electrical submersible pump when the average reservoir pressure is 4000 psi. The well will be equipped with 3 1/2 in. tubing (E = 0.001, I.D. = 2.992 in.), the surface tubing pressure is 100 psi, and the well casing is 7 in. The minimum suction pressure required by the pump is 250 psi. Well in a saturated oil reservoir kh kv h Pb Treservoir ct Φ Sw yo Yg rw Psurface Tsurface Zsurface Skin Drainage Area = = = = = = = = = = = = = = = = 13 md 1 md 115 ft 4336 psi 220 F 1.25 E-05 0.21 0.3 32 API 0.71 0.406 ft 100 psi 100 F 0.98 gas compressibility factor 4 160 Acres psi-¹ a) 20% Construct the inflow performance relationship curve, what is the flowing bottom hole pressure, explain the reason behind the equation you used. b) 25% Calculate one point on the vertical flow performance curve for this well under natural reservoir flow conditions if the gas rate is 0.005 mmscf/d in addition to the oil rate of 1100 stb/d. If this vertical flow performance curve is a horizontal line what is the operating point of this well (i) assume that the flow is in the bubble flow regime (ii) use the pressure gradient at the top of the tubing c) 15% Determine the required specifications for an electrical submersible pump for this application: (1) What is the minimum pump setting depth (2) If the pump is set 150 ft above the bottom of the well, what is the suction pressure d) 25% (3) If the pump is set 150 ft above the bottom of the well, what is the discharge pressure (4) How much pressure is generated across this pump (5) What is the minimum number of required pump stages

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The formula for the hydraulic power of pump is PQyh n P Power Q Flow Rate y specific weight ... View the full answer