Lateral Load Imposed on a Casing Centralizer with a Dogleg Formula
Lateral Load Imposed on a Casing Centralizer with a Dogleg calculates lateral load with additive tension component for mud and cementing workflows in drilling engineering.
How engineers use this formula
Use this formula when the listed inputs (m_bf, W_csg, L_span, theta_deg, dogleg_deg_per_100ft, L_below) 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, F_L_plus equals 4,898.955355 lbf.
0.85
40
120
45
2
2000
Inputs
m_bf
dimensionlessSteel-in-Mud Buoyancy Factor
W_csg
lbf/ftCasing Weight per Foot
L_span
ftSpacing to Next Lower Centralizer
theta_deg
degBorehole Angle
dogleg_deg_per_100ft
deg/100 ftDogleg Severity
L_below
ftCumulative Casing Length Below Centralizer
Outputs
F_L_plus
Lateral Load with Additive Tension Component
F_L_minus
Lateral Load with Opposing Tension Component
delta_deg
One-Half Angle Change from Dogleg and Spacing
T_csg
Estimated Casing Tension Below Centralizer
F_weight
Casing Weight Component of Lateral Load
F_tension
Dogleg Tension Component of Lateral Load
Source and review
reviewedCementing Handbook, Suman Jr., G.O., Ellis, R.C. (1977)
Suman Jr., G.O. and Ellis, R.C. 1977. Cementing Handbook, World Oil, Page 44.
Source