. Hydraulic horse Power of Pump = 1200 HP Maximum Pressure surface = 3500 Psi hole size = 12 in Mud weigh = 10.5 PPg Drill Pipe: oD=5in, ID 4-276 in thelawest flow rate at Pump = 250 9Pm n=1.9 K = 0.02 = Determine - loftimum Pressure loss throught the Pipe 27 optimum Pressure at bit 37 Optimum flow rate 47 optimum & Jet size 57 Max BHHR and Max IF 67 Compare between tow two methode with define R. factor.