Bit Nozzle Jet Velocity Calculator
Enter the declared drilling engineering inputs below to solve V_n. Variable definitions, units, the default calculation, and the available source trail are included on this page.
What is available in this record
This record provides the functioning calculator, formula, declared variables and units, a reproducible default result, and the available citation metadata. A separately written engineering interpretation has not yet been published for this calculation.
Formula, variables, and default calculation
Reproducible default result
With the default values shown below, the calculation returns V_n = 579.444444 ft/s. Defaults demonstrate the implementation; they are not recommended field values.
600
12
12
12
Input definitions
Q
gpmCirculation Rate
N_1
1/32 inNozzle 1 Size
N_2
1/32 inNozzle 2 Size
N_3
1/32 inNozzle 3 Size
Output definitions
V_n
Jet Velocity at Bit Nozzles
Q
Circulation Rate
N_1
Nozzle 1 Size
N_2
Nozzle 2 Size
N_3
Nozzle 3 Size
Source and record status
Source metadata identifies the relationship implemented by the calculator. Check the cited edition, unit basis, and scope against the engineering case before operational use.
Lapeyrouse, N.J. Formulas and Calculations for Drilling, Production and Workover, 2nd Edition, Page 170.
Open source reference