A drill string is made up off 10,000 ft of 5 in 19.5lb/ft drill pipe and 600 ft of 8 in OD and 3 in ID drill collar (187

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answerhappygod
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A drill string is made up off 10,000 ft of 5 in 19.5lb/ft drill pipe and 600 ft of 8 in OD and 3 in ID drill collar (187

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A drill string is made up off 10,000 ft of 5 in 19.5lb/ft drillpipe and 600 ft of 8 in OD and 3 in ID drill collar (187 lb/ft), itis inside a borehole filled with 10 ppg drilling fluid and 20,000lbf of WOB (weight on bit)
a) Calculate the elongation of the drill collars
b) Calculate the elongation of the drill pipes
c) Calculate the total elongation of the drill string
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