Drilling Bit Hydraulics & Jet Impact Force Calculator

Optimize roller cone and PDC bit cleaning: calculate Total Flow Area (TFA), nozzle velocity (ft/s), bit pressure drop, Hydraulic Horsepower (HHP), and HSI.

Bit Nozzles & Pumping Conditions

Flow Rate Q (gpm):

Mud Weight MW (ppg):

Bit Diameter D_bit (in):

Nozzle Discharge Coeff (C_d):

Nozzle Configuration (sizes in 32nds of an inch):

Enter 0 for unused nozzle ports. E.g. three 13/32" nozzles.

Bit Hydraulic Performance

Total Flow Area (TFA):

—

Nozzle Jet Velocity:

—

Bit Pressure Drop (ΔP_b):

—

Bit Hydraulic Horsepower (HHP):

—

Specific Hydraulic Power (HSI):

—

Jet Impact Force (F_i):

—

Hydraulics Optimization Criteria:

—

Recommended Tools & Equipment

Tested hardware and components for high reliability

100% Free Tool Zero Sign-Up

Drilling Bit Hydraulics & Jet Impact Force Calculator

Bit Nozzles & Pumping Conditions

Bit Hydraulic Performance

Frequently Asked Questions