Q1/ An 8.5 in. hole is being drilled at a depth of 8000 ft. with (4.5 in OD, 3.836 in.ID) drill pipe. Duplex pump with (6 in.liner diameter. Stroke length 15 in.rod diameter 2 in. with volumetric efficiency 90% pump strokes 50 SPM) Calculate: 1) Pump Factor (FP) in bbl./stk. 2) Flow rate of the pump in gal/min. 3) Capacity of drill pipe in bbl.i. 4) Displacement of drill pipe in bhl. $. 5) Capacity of annulus in bbl./ft. 6) Displaced mud volume for one complete circulation. 7) Strokes Number for one complete circulation. 8) Time required for one complete Circulation in minutes 9) Horsepower of the pump if operated at 3000 psi. 10) Loss in fluid level in the annulus if one stand (thribbles) of drill collars are pulled without filling the well. (8 in.OD and 3 in. ID drill collars used). (10M)