3. The reservoir is producing oil at three different pressures; 3200 psia, 3450 psia and 3700 psia at 205.5 °F. Determine with justification oil flow rate in STB/day based on the data provided in Table Q3. Table Q3 Reservoir Properties Parameter k Value 356 md kskin 125 md 2.5 ft I'skin 5ft А 160 аcres 0.158 cp Ho h 20.7 ft Bo 1.135 bbl/STB Pwf 2547 psia

3. The reservoir is producing oil at three different pressures; 3200 psia, 3450 psia and 3700 psia at 205.5 °F. Determine with justification oil flow rate in STB/day based on the data provided in Table Q3. Table Q3 Reservoir Properties Parameter k Value 356 md kskin 125 md 2.5 ft I'skin 5ft А 160 аcres 0.158 cp Ho h 20.7 ft Bo 1.135 bbl/STB Pwf 2547 psia

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter7: Permeability

Section: Chapter Questions

Problem 7.22P: Refer to Figure 7.24. The following data were collected during the field permeability measurement of...

See similar textbooks

Similar questions

) A pumping test carried out in a 50 m thick confined aquifer resulted in a flow rate of 600l/min. The thickness of the impermeable layer above the aquifer is 20 m and the originalwater level in the well was 2 mm below the ground surface (which is also the top of theimpermeable layer). Drawdowns in two observation wells located 50 m and 100 m fromthe well are 3 and 1 m respectively. Calculate:i) The coefficient of permeability of the aquifer, ii) The drawdown in the well, iii) The radius of influence. The diameter of the well is 0.6 m.
9) A well is located in a confined aquifer near the intersection of a constant head and impervious boundary. a) Estimate the steady state drawdown in the well for Q=2 ft³ s, rw = 1 ft, distance from the well to stream= 300ft and distance from well to impervious boundary= 150 ft. T = 0.14ft²/s b) Estimate the steady state drawdown at point P located midway between the well and the steam. The angle between the stream and the impervious boundary is 90°
A well with a diameter of 18 in. penetrates an unconfined aquifer that is 100ft thick. Two observation well are located at 100 ft and 235 ft from the well, and the measured drawdownsare 22.2ft and 21ft, respectively. Flow is steady and the hydraulic conductivity is 1400 gpd/ft^2. What is the steady-state rate of discharge from the well?
A well is pumping at an unknown, steady rate in a confined aquifer. Near the pumping well are two observation wells; observation well A is located 8m from the pumping well and B is located 24m from the pump- ing well. The heads in these wells are hA = 134.20 and hB = 134.28 m. You know from prior pumping tests of the well that the well and the observation wells are screened in a confined aquifer with transmissivity T = 1200 m2/day. Assuming that without the well pumping there would be no hydraulic gradient at all, what is the pumping rate of the well?
Hydrology Question Can you show me how to calculate specific storage S=Ssb. well is 0.3 m in diameter and is fully screened for the entire 12 m depth of the aquifer, which is composed of coarse sand having a bulk density of 2 g/cm3, K of 0.1 cm/sec, porosity of 0.25 and organic content of 0.5%.+ radius of influence of this well can be taken as 3,000 m. What is the steady state drawdown of the well, if the average water use by the factory is 360 L/min. b = 12m S = 360L/m do I have this correct? Ss =
b) A 30-cm well fully penetrates an unconfined aquifer of saturated depth 25 m. When a discharge of 2100 lpm was being pumped for a long time, observation wells at radial distances of 30 m and 90 m indicated drawdown of 5 and 4 m respectively. Estimate the coefficient of permeability and transmissibility of the aquifer. What is the drawdown at the pumping well?
7 Yuri wants to determine the permeability of an aquifer. The aquifer has a test well 300-mm in diameter with two observation wells. A pumping test was conducted for 24 hours with the discharge being held constant at 6,481 m^3/day. The first one, 87.94 meters from the test well, has a draw-down of 0.56 meters. The second one, 46 meters from the test well, has a draw-down of 1.25 meters.The static water table penetrates the well to a depth of 28 meters. Determine the radius of influence of the aquifer in meters. Round off to three decimal places.
A 12 inch diameter well was installed in an unconfined aquifer consisting of a 60 foot thick layer of sand. The water table was 15 feet below the ground surface before pumping of the well began. The well was then pumped at a rate of 30 gallons per minute and the water level in the well dropped to 45 feet below the ground surface after a steady-state condition was reached. The radius of well influence is 4000 feet. a) Calculate the permeability of the sand b) Compute and plot the drawdown surface
1. (a) Illustrate with label the half-way graphical diagram for 3-phase fluids reservoir in reserves estimation. (b) Describe the half-way concept illustrated in Q1(a).
ENVIRONMENTAL ENGINEERING ( Practice Questions) a). Suppose a well 0.36m in diameter has been pumped at a rate of 3,000cu.m/day for a long enough time that steady-state conditions apply. An observation well located 30m from the pumped well has been drawn down by 1.0m, and another well at 120m is drawn down by 0.4m. The pumped well extends completely through an unconfined aquifer 60.0m thick. GIVEN: For an unconconfined aquifer, Q = πK(h2c1 – h2c2) / [Ln(r1 / r2)] Determine the hydraulic conductivity, K. (7 marks) (ii) Estimate the drawdown at the pumped well. State any assumptions made. b). A confined aquifer 40.0 m thick has two monitoring wells spaced 400m apart along the direction of groundwater flow. The difference in water level in the wells is 4.0m (the difference in piezometric head). The hydraulic conductivity is 40m/day. Estimate the rate of flow per meter of distance perpendicular to the flow. C). Suppose the aquifer, which has a…
4 Homework 1. Dervie and prove Table 2. 9.1 Water injection is carried out in a 50 ft thick, 300 ft wide, and 400 ft long grid- block (much like a rectangular core, called gridblock in reservoir simulation terminology), which has a porosity of 33% and absolute permeability of 500 mD. The injection of water is carried out at a residual oil saturation of 20%. The pressure drop across the gridblock is 5 atm. The relative permeability of water (k) at residual oil saturation of 20% or water saturation of 80% is 0.67. Water viscosity is 1.0 cP. Calculate the water flow rate in barrels/day. 9.3 An oil-water SS displacement experiment was carried out on a 5.0 cm long and 3.0 cm diameter sandstone core plug. The porosity of the plug is 25% and the grain density is 2.65 g/cm³. Oil and water densities are 0.85 g/cm³ and 1.05 g/cm³, while viscosities are 2.0 cP and 1.0 cP, respec- tively. The differential pressure for the test is 12.94 psi. Other data are provided in the following table. Calculate…
Question 5 A well pumping at 2180.4 m³/d has observation wells located 3, 12, 46, 91, and 122m away. After 0.14 day of pumping, the following drawdowns were observed: Distance (m) Drawdown (m) 4.60 3 12 2.87 46 1.34 91 0.52 122 0.08 data on semi-log scaie usiny ivATLAD, Determine transmissivity (T) in m?/d, hydraulic conductivity (K) storage coefficient (S) m/d, and the