a Mud is flowing through 4 ½ inch OD/ 3.64 inch ID, internal flush drill pipe. Thecirculating flow rate is 400gpm and the mud properties as follows :Mud weight = 10 ppgYield point = 10 lb/100 ft2Plastic viscosity 30 cp1. Calculate the pressure losses per 10,000 ft of drill pipe.2. Calculate the pressure losses per 10,000 ft of drill pipe if use a water as a workingfluids.3. During the calculation case 2 at what velocity flow become turbulent?b The following shear stress - shear rate behavior was observed.Shear Stress (dynes/cm²)Shear rate (Seconds-')20113015.24019.15022.96026.51.Make a plot of shear stress (ordinate) vs shear rate (abscissa) on log-log paper.2.Can the fluid behavior be accurately modeled by the Newtonian, Bingham plastic,or Power law model?3.Compute the apparent viscosity for each shear rate.4.Compute the yield point and plastic viscosity for each shear rate.5.Compute the consistency index and flow behavior index.

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a Mud is flowing through 4 ½ inch OD/ 3.64 inch ID, internal flush drill pipe. The circulating flow rate is 400gpm and the mud properties as follows: Mud weight = 10 ppg Yield point = 10 lb/100 ft² Plastic viscosity 30 cp 1. Calculate the pressure losses per 10,000 ft of drill pipe. 2. Calculate the pressure losses per 10,000 ft of drill pipe if use a water as a working fluids. 3. During the calculation case 2 at what velocity flow become turbulent?

a Mud is flowing through 4 ½ inch OD/ 3.64 inch ID, internal flush drill pipe. The circulating flow rate is 400gpm and the mud properties as follows: Mud weight = 10 ppg Yield point = 10 lb/100 ft² Plastic viscosity 30 cp 1. Calculate the pressure losses per 10,000 ft of drill pipe. 2. Calculate the pressure losses per 10,000 ft of drill pipe if use a water as a working fluids. 3. During the calculation case 2 at what velocity flow become turbulent?

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Hydraulic Conductivity

Section: Chapter Questions

Problem 6.14P

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