4. A radial flow system has an outer boundary of radius 330 ft, and a well...
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4. A radial flow system has an outer boundary of radius 330 ft, and a well of diameter 7 inches. The pressure at the outer boundary is 3000 psia, and the well pressure is550 psia. If the flow system has a permeability of 200 mD and thickness of 35 ft, and if the flowing fluid viscosity is 7 cp, calculate the production |
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Homework Answers
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4. A radial flow system has an outer boundary of radius 330 ft,
and a well...
Calculate the required reservoir pressure for the well to provide 500 STB/D of flowrate. flowing ...
Calculate the required reservoir pressure for the well to provide 500 STB/D of flowrate. flowing pressure is 3,000 psia. Assume the fluid behaves as an incompressible hiund flow. Other fluid and reservoir properties are as given below: external radius, 2,000 ft wellbore radius, 0.5 ft average permeability is 100 mD Average reservoir thickness is 10 ft Oil formation volumetric factor is 1.2 bbl/STB Oil viscosity is the last digit of your student ID in cP. If your student ID ends...
Calculate the flow rate in a reservoir 2,000 ft long, having a permeability of 70 md....
Calculate the flow rate in a reservoir 2,000 ft long, having a permeability of 70 md. The reservoir is 500 ft wide, and 15 feet of net pay thickness. The oil in the reservoir has a viscosity' of 3 cp. The pressure at the right end is 1500 psia, and the pressure at the left end is 3200 psia. Calculate the flow rate?
PROBLEM No. 4: A 2-mile wide reservoir consists of several layers as shown below. An incompressible...
PROBLEM No. 4: A 2-mile wide reservoir consists of several layers as shown below. An incompressible liquid with 1.5 cp viscosity flows through the reservoir at steady-state. Compute the flowrate (bbl/day) of the liquid through the layers P- 750 psia h- 50 ft h-30 f k-120 md P-2300 psia 140 md 200 md k-70 md h- 10 ft L-2.4 miles L-3.6 miles PROBLEM No. 5: A 3000-ft diameter unit in a reservoir has a permeability of 320 md, and is...
ABET CRITERION (E, K) 7-14 A single-phase fluid reservoir is described by three equal gridblocks as...
ABET CRITERION (E, K) 7-14 A single-phase fluid reservoir is described by three equal gridblocks as shown in Fig. 7-16. The reservoir is horizontal and has homogeneous and isotropic rock properties, k-270 md and 0.27. Gridblock dimensions are Δ-400 ft, 4y-650 ft, and h = 60 ft. Reservoir fluid properties are B = 1 RBSTB and μ = 1 cp. The reservoir left w boundary is kept constant at 3000 psia, and the reservoir right boundary is kept at a...
The axial flow steam turbine rotor shown in Fig. P12.69 has a blade outer radius RO 2.40 ft, a blade inner radius Ri 2.00 ft, a steam inlet pressure p1 200 psia, a steam inlet density p1- 0.296 lbm/t...
The axial flow steam turbine rotor shown in Fig. P12.69 has a blade outer radius RO 2.40 ft, a blade inner radius Ri 2.00 ft, a steam inlet pressure p1 200 psia, a steam inlet density p1- 0.296 lbm/t3, and an inlet absolute velocity V1 1000 f/s making an angle of 70° with the axial direction. The steam outlet pressure p2 50 psia and outlet density is 0.1014 Ibm/t3. B2 40 The rotor rotates at 3600 rpm. Using a blade...
4. Consider the situation of radial flow between two concentric cylinders. The outer cylinder has a...
4. Consider the situation of radial flow between two concentric cylinders. The outer cylinder has a radius of R and the inner cylinder has a radius KR. Assume flow is only in the radial direction and assume v, = v(r). Use the continuity equation and the relevant momentum balance equations to derive an expression for the pressure difference Pi-Po between the outer and inner cylinders as a function of the volumetric flow rate with L being the length of the...
2. For the 1D reservoir described in the figure below, the reservoir left boundary is kept...
2. For the 1D reservoir described in the figure below, the reservoir left boundary is kept at a constant pressure gradient of -0.1 psi/ft (note the negative sign) and the reservoir right boundary is supplied with fluid at a rate of 50 STBD. There is a producing well in grid 4 with a rate of 150 STBD. Write the flow equations for grids 1,4, and 5. (20 points) OF 1- E Ins (only the flow equations, NO solving). Given: Tim...
Problem 4 A confined aquifer has transmissivity 200 ft-/day and storage coefficient 0.0005. The a...
Problem 4 A confined aquifer has transmissivity 200 ft-/day and storage coefficient 0.0005. The aquifer thickness is 100 ft. The radius of the pumping well is 12 inches. The length of well screen is 50 ft and was installed in the middle of the aquifer. Given pumping rate 22000 ft/day, for a full-penetration wel, the total drawdown in the pumping wel is 164.2 ft at t-24 hours. Calculate well loss coefficient (min'/m*) Problem 5 Continue Problem 4. Calculate well efficiency...
1) A spherical storage tank, shown to the right, has an outer diameter of 20 ft....
1) A spherical storage tank, shown to the right, has an outer diameter of 20 ft. and a wall thickness 7/16 in. The internal pressure in the tank is 75 psi. Draw Mohr's circle for this problem (including the "3D" Mohr's circle). Determine the maximum normal stress and the maximum shear stress. Ans: max = 10.248 ksi, Tmax = 5.124 ksi
The hollow steel construction auger in Figure 4 has an outer diameter d2 = 140 mm...
The hollow steel construction auger in Figure 4 has an outer diameter d2 = 140 mm and thickness of t = 8 mm. The steel has a shear modulus of elasticity E = 200 GPa and v = 0.3. For an applied torque of 35 kN m, determine the following quantities: a) Shear stress at the mid-center of the thickness t of the shaft. [2] b) Shear stress on the outer surface. [1] c) Shear stress in the inner surface,...
Calculate the required reservoir pressure for the well to provide 500 STB/D of flowrate. flowing pressure is 3,000 psia. Assume the fluid behaves as an incompressible hiund flow. Other fluid and reservoir properties are as given below: external radius, 2,000 ft wellbore radius, 0.5 ft average permeability is 100 mD Average reservoir thickness is 10 ft Oil formation volumetric factor is 1.2 bbl/STB Oil viscosity is the last digit of your student ID in cP. If your student ID ends...
Calculate the flow rate in a reservoir 2,000 ft long, having a permeability of 70 md. The reservoir is 500 ft wide, and 15 feet of net pay thickness. The oil in the reservoir has a viscosity' of 3 cp. The pressure at the right end is 1500 psia, and the pressure at the left end is 3200 psia. Calculate the flow rate?
PROBLEM No. 4: A 2-mile wide reservoir consists of several layers as shown below. An incompressible liquid with 1.5 cp viscosity flows through the reservoir at steady-state. Compute the flowrate (bbl/day) of the liquid through the layers P- 750 psia h- 50 ft h-30 f k-120 md P-2300 psia 140 md 200 md k-70 md h- 10 ft L-2.4 miles L-3.6 miles PROBLEM No. 5: A 3000-ft diameter unit in a reservoir has a permeability of 320 md, and is...
ABET CRITERION (E, K) 7-14 A single-phase fluid reservoir is described by three equal gridblocks as shown in Fig. 7-16. The reservoir is horizontal and has homogeneous and isotropic rock properties, k-270 md and 0.27. Gridblock dimensions are Δ-400 ft, 4y-650 ft, and h = 60 ft. Reservoir fluid properties are B = 1 RBSTB and μ = 1 cp. The reservoir left w boundary is kept constant at 3000 psia, and the reservoir right boundary is kept at a...
The axial flow steam turbine rotor shown in Fig. P12.69 has a blade outer radius RO 2.40 ft, a blade inner radius Ri 2.00 ft, a steam inlet pressure p1 200 psia, a steam inlet density p1- 0.296 lbm/t3, and an inlet absolute velocity V1 1000 f/s making an angle of 70° with the axial direction. The steam outlet pressure p2 50 psia and outlet density is 0.1014 Ibm/t3. B2 40 The rotor rotates at 3600 rpm. Using a blade...
4. Consider the situation of radial flow between two concentric cylinders. The outer cylinder has a radius of R and the inner cylinder has a radius KR. Assume flow is only in the radial direction and assume v, = v(r). Use the continuity equation and the relevant momentum balance equations to derive an expression for the pressure difference Pi-Po between the outer and inner cylinders as a function of the volumetric flow rate with L being the length of the...
2. For the 1D reservoir described in the figure below, the reservoir left boundary is kept at a constant pressure gradient of -0.1 psi/ft (note the negative sign) and the reservoir right boundary is supplied with fluid at a rate of 50 STBD. There is a producing well in grid 4 with a rate of 150 STBD. Write the flow equations for grids 1,4, and 5. (20 points) OF 1- E Ins (only the flow equations, NO solving). Given: Tim...
Problem 4 A confined aquifer has transmissivity 200 ft-/day and storage coefficient 0.0005. The aquifer thickness is 100 ft. The radius of the pumping well is 12 inches. The length of well screen is 50 ft and was installed in the middle of the aquifer. Given pumping rate 22000 ft/day, for a full-penetration wel, the total drawdown in the pumping wel is 164.2 ft at t-24 hours. Calculate well loss coefficient (min'/m*) Problem 5 Continue Problem 4. Calculate well efficiency...
1) A spherical storage tank, shown to the right, has an outer diameter of 20 ft. and a wall thickness 7/16 in. The internal pressure in the tank is 75 psi. Draw Mohr's circle for this problem (including the "3D" Mohr's circle). Determine the maximum normal stress and the maximum shear stress. Ans: max = 10.248 ksi, Tmax = 5.124 ksi
The hollow steel construction auger in Figure 4 has an outer diameter d2 = 140 mm and thickness of t = 8 mm. The steel has a shear modulus of elasticity E = 200 GPa and v = 0.3. For an applied torque of 35 kN m, determine the following quantities: a) Shear stress at the mid-center of the thickness t of the shaft. [2] b) Shear stress on the outer surface. [1] c) Shear stress in the inner surface,...
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