Drilling EngineeringWell Control
Kick Analysis - Shut-In Drill Pipe Pressure Formula
Kick Analysis - Shut-In Drill Pipe Pressure calculates shut-in drill pipe pressure for well control workflows in drilling engineering.
How engineers use this formula
Use this formula when the listed inputs (P_fp, MW, h) 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, SIDPP equals 800 psi.
P_fppsi
7040
MWppg
12
hft
10000
Inputs
P_fp
psiFormation Pressure
MW
ppgMud Weight
h
ftHeight or True Vertical Depth
Outputs
SIDPP
psi
Shut-In Drill Pipe Pressure
P_fp
psi
Formation Pressure
MW
ppg
Mud Weight
h
ft
Height or True Vertical Depth
Source and review
reviewedLapeyrouse, N.J. Formulas and Calculations for Drilling, Production and Workover, 2nd Edition, Page 131.
Source