Drilling EngineeringWell Control
Workover Kill Fluid Weight from Bottomhole Pressure Formula
Workover Kill Fluid Weight from Bottomhole Pressure calculates kill fluid weight for well control workflows in drilling engineering.
How engineers use this formula
Use this formula when the listed inputs (BHP, TVD) are known and the assumptions behind the cited well control 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, KFW equals 12.019231 ppg.
BHPpsi
5000
TVDft
8000
Inputs
BHP
psiBottomhole Pressure
TVD
ftTrue Vertical Depth
Outputs
KFW
ppg
Kill Fluid Weight
BHP
psi
Bottomhole Pressure
TVD
ft
True Vertical Depth
Source and review
reviewedIADC WellSharp Formula Sheet, field units, well completion/workover formula sheet.
Source