Consider a well 12 inches in diameter there are 1000 feet

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Reference no: EM13632118

Consider a well 12 inches in diameter. There are 1000 feet of 10x4 inch collars and 9000 feet of 5x4.26 inch drill pipe. The bit has 3 nozzles of diameter 13/32 inch. The surface piping has a pressure drop of 100 psi. The drilling mud is 12 lmb/gal with a viscosity of 10 cp. The circulating rate is 400 gal/min.

a)Calculate the v(ft/s), NRe, Turb/Laminar, ?P/?L(psi/ft) for inside the drillpipe, inside collar, outside drillpipe, outside collar

b)Calculate the drill bit pressure drop

c)Calculate the pressure at the bottom of the annulus and bottom of drillpipe.

Reference no: EM13632118

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