Engineering, 25.12.2019 18:31 dianereyes7475
The bit currently in use has three 12/32-in. nozzles. the driller has recorded that when the 10- lbm/gal mud is pumped at a rate of 500-gal/min, a pump pressure of 3,000 psig is observed, and when the pump is slowed to a rate of 250-gal/min, a pump pressure of 800 psi is observed. the pump is rated at 1,000 hp and has an overall efficiency of 0.9. the minimum flow rate to lift the cuttings is 240- gal/min. the maximum allowable surface pressure is 3,000 psi.
a) determine the proper pump operating conditions and bit nozzle sizes for maximum bit horsepower for the next bit run.
b) what bit horsepower will be obtained at the conditions selected?
c) what impact force will be obtained at the conditions selected?
d) what nozzle velocity will be obtained at the conditions selected? e) plot the graphical representation correspondi
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The bit currently in use has three 12/32-in. nozzles. the driller has recorded that when the 10- lbm...
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