Calculate the pressure losses across the different sections of drill pipe and annulus by using the...

Calculate the pressure losses across the different sections of drill pipe and annulus by using the Bingham plastic fluid model (You must draw the wellbore structure chart: without the chart, 50% points will be deducted) PROBLEM: MD/TVD: 12,031 ft Surface casing: 2,135 ft of 133⁄8-in. 61 lb/ft Intermediate casing: 10,786 ft of 95⁄8-in. 40 lb/ft Bit: 85⁄8 in. Nozzles (32nds in.): 11, 11, 11 Surface connections: Case 3 Drill pipe: 41⁄2 in., 16.6 lb/ft Drill collars: 390 ft of 7 in. x 21⁄4 in. Surface pressure: 3,000 psi Mud weight: 12.8 lb/gal Funnel viscosity: 42 sec/qt Plastic viscosity: 19 cP Yield point: 15 lb/100 ft2 Initial gel: 8 lb/100 ft2 Flow rate: 335 gpm

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samet mamat answered 1 year ago

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