Drilling EngineeringDrilling Hydraulics
Drill String Volume Formula
Drill String Volume calculates drill string volume for drilling hydraulics workflows in drilling engineering.
How engineers use this formula
Use this formula when the listed inputs (ID, PL) are known and the assumptions behind the cited drilling hydraulics relationship match the engineering case being checked.
Assumptions
- Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
- The declared units match the field-unit constants used in the formula.
- The cited formula applies to the selected petroleum engineering workflow.
Limitations
- The calculation does not replace a full engineering model or operating procedure.
- Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.
Common mistakes
- Mixing unit systems without converting the inputs.
- Using default example values as field recommendations.
- Applying the formula outside the source assumptions.
Default example
Using the default inputs, B equals 155.430348 bbl.
IDin
4
PLft
10000
Inputs
ID
inInternal Diameter
PL
ftPipe Length
Outputs
B
bbl
Drill String Volume
ID
in
Internal Diameter
PL
ft
Pipe Length
Source and review
reviewedLapeyrouse, N.J. 2002. Formulas and Calculations for Drilling, Production and Workover, 2nd Edition, Page 31.
Source