2.2. Fluid Hydraulics


2.2.6. Desired HPPA

Task is intended to calculate flow rate required to supply desired value of bit hydraulic power per area (HPPA, HSI). Bit pressure loss and bit nozzles jet velocity are calculated as well.

Input Values
Mud Weight Density of Mud
Bit Diameter Diameter of the bit
Desired HSI Desired hydraulic power per area
Bit TFA Total flow area of bit nozzles
Results
Flow Rate Required Flow Rate Provided by Pumps
Bit Pressure Loss Loss of pressure on the bit
Jet Velocity Jet velocity in the nozzles