Drilling EngineeringWell Control
Subsea Choke Line Pressure Loss Adjusted for Mud Weight Formula
Subsea Choke Line Pressure Loss Adjusted for Mud Weight calculates adjusted choke line pressure loss for well control workflows in drilling engineering.
How engineers use this formula
Use this formula when the listed inputs (W_o, W_n, CLPL_o) 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, CLPL equals 583.333333 psi.
W_oppg
12
W_nppg
14
CLPL_opsi
500
Inputs
W_o
ppgOriginal Mud Weight
W_n
ppgNew Mud Weight
CLPL_o
psiOriginal Choke Line Pressure Loss
Outputs
CLPL
psi
Adjusted Choke Line Pressure Loss
W_o
ppg
Original Mud Weight
W_n
ppg
New Mud Weight
CLPL_o
psi
Original Choke Line Pressure Loss
Source and review
reviewedFormulas and Calculations for Drilling, Production and Workover, Lapeyrouse, N.J. (2002)
Lapeyrouse, N.J. 2002. Formulas and Calculations for Drilling, Production and Workover, 2nd Edition, Page 144.
Source