Drilling EngineeringMud and Cementing
Casing Displacement Volume to Float Collar Formula
Casing Displacement Volume to Float Collar calculates displacement volume to float collar for mud and cementing workflows in drilling engineering.
How engineers use this formula
Use this formula when the listed inputs (C_csg, L_fc) are known and the assumptions behind the cited mud and cementing 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, V_disp equals 332.9536 bbl.
C_csgbbl/ft
0.03716
L_fcft
8960
Inputs
C_csg
bbl/ftCasing Capacity
L_fc
ftLength to Float Collar
Outputs
V_disp
bbl
Displacement Volume to Float Collar
C_csg
bbl/ft
Casing Capacity
L_fc
ft
Length to Float Collar
Source and review
reviewedDrillingFormulas.com. Calculate Cement (Oil Well Cement) Volume Required; Drilling Manual. Cementing Calculations - 7 Steps & Spreadsheets.
Source