A 12-inch well penetrating a 100-ft thick eenfinedr aquifer is pumped at a rate of 100...

A 12-inch well penetrating a 100-ft thick eenfinedr aquifer is pumped at a rate of 100 gpm for 10 years. Determine the drawdown of 100-ft from the well. The storage coefficient of the aquifer is 0.001, permeability 500 gpd/ft, r/B = 0.2, and porosity= 0.3?

Expert Solution

If you like the answer, please give a thumbs-up.

Thank you !

Ally Wells answered 6 months ago

A 12-in-diameter well completely penetrates a 130-ft-thick, unconfined aquifer with a coefficient of permeability of 0.00055...

A 12-in-diameter well completely penetrates a 130-ft-thick, unconfined aquifer with a coefficient of permeability of 0.00055 ft/sec. If the radius of influence of the well is 500 feet and the drawdown at an observation well 250 ft away is 5 ft, determine the steady state well discharge and the drawdown at the well.

Two discharge wells (1 and 2) penetrating an unconfined aquifer are pumped at constant rates of...

Two discharge wells (1 and 2) penetrating an unconfined aquifer are pumped at constant rates of 3,000 and 500 m^3 per day , respectively. The steady-state head (i.e., water table height) measured at an observation well is 40 meters . The observation well is 50 meters from well 1 and 64 meters from well 2. The water table height measured at a second observation well is 32.9 meters , which is located 20 meters from well 1 and 23 meters...

A kite 75 ft above the ground moves horizontally at a rate of 12 ft/s. At...

A kite 75 ft above the ground moves horizontally at a rate of 12 ft/s. At what rate in ft/s is the angle between the string (diagonal) and horizontal decreasing when 200 ft of string has been let out?

60 cm diameter well is being pumped at a rate of 1360 litres/minute. measurements in a...

60 cm diameter well is being pumped at a rate of 1360 litres/minute. measurements in a nearby test well were made at the same time as follows. At a distance of 6 m from the well being pumped, the drawdown was 6 m, and at 15 m the drawdown was 1.5 m. The bottom of the well is 90 m below the ground water table. (a) Find out the coefficient of permeability. (b) If all the observed points were on...

1-A building requires a 100-foot long by 83-foot wide by 5-inch thick concrete slab. Using a...

1-A building requires a 100-foot long by 83-foot wide by 5-inch thick concrete slab. Using a waste factor of 10 %, Include calculations. a)determine the number of cubic yards of concrete needed to pour the slab. (2 points) 2-Determine the number of rolls of wire mesh needed if there are 750 SF of wire per roll and 12% of waste. Include calculations. (2 points) 9 BCT 2770 Estimating Fundamentals 3-Determine the amount of rebar needed for the slab if it...

Water flows between two reservoirs through 800 ft of 12-inch diameter welded-steel pipe. The water surface...

Water flows between two reservoirs through 800 ft of 12-inch diameter welded-steel pipe. The water surface elevation difference between the two reservoirs is 16 ft. Find the flowrate (a) assuming head loss is only due to pipe friction, and (b) Accounting for both friction losses and minor losses due to a flush square-edged pipe entrance, the pipe exit, and a half-open gate valve in the line. Assume the water temperature is 60°F.

4-) Given the following data: Drilling Fluid Density : 12 ppg Well Depth: 10,000 ft. Drill...

4-) Given the following data: Drilling Fluid Density : 12 ppg Well Depth: 10,000 ft. Drill Bit Nozzle Sizes: 13-13-13 Pump Horsepower: 1800 Pump Volumetric Efficiency: 80% Maximum Pump Pressure: 4,500 psi Minimum Flow Rate: 350 gpm Parasitic pressure losses of 2,173 psi and 1,388 psi are anticipated while circulating mud at flow rates 500 gpm and 390 gpm respectively. a-) (10 points) Determine the parasitic pressure losses when the bit hydraulic horsepower is maximum. b-) ( 5 points) Determine...

2-) Given the following data: Drilling Fluid Density : 12 ppg Well Depth: 10,000 ft. Drill...

2-) Given the following data: Drilling Fluid Density : 12 ppg Well Depth: 10,000 ft. Drill Bit Nozzle Sizes: 13-13-13 Pump Horsepower: 1800 Pump Volumetric Efficiency: 80% Maximum Pump Pressure: 4,500 psi Minimum Flow Rate: 350 gpm Parasitic pressure losses of 2,173 psi and 1,388 psi are anticipated while circulating mud at flow rates 500 gpm and 390 gpm respectively. a-) Determine the parasitic pressure losses when the bit hydraulic horsepower is maximum. b-) Determine the optimum flow rate when...

With an initial deposit of $100, and and interest rate of 12%, the balance in a...

With an initial deposit of $100, and and interest rate of 12%, the balance in a bank account after t years is f(t) = 100(1.12)t dollars. (a) Find the average rate of change over [0, 0.5] and [0, 1]. (Round your answers to two decimal places.) (c) Estimate the instantaneous rate of change at t = 0.5 by computing the average rate of change over intervals to the left and right of t = 0.5. (Round your answers to four...

Question