Axial loads in slips
Input(s)
A: Cross Sectional Area of the Pipe body (in. \({ }^{2}\) )
\(\sigma\): Yield Strength of the Casing (psi)
\(r\): Outside Casing Radius (in.)
L: Slip Gripping Length (in.)
K: Transverse Load Factor (dimensionless)
Output(s)
\(F_{c}\): Critical Axial Load (lbm)
\(C\): Crushing Factor (dimensionless)
Formula(s)
\[
C=\frac{F_{c}=C \cdot A \cdot \sigma}{\left[1+\frac{r K}{L}+\left(\frac{r K}{L}\right)^{2}\right]^{1 / 2}}
\]
Reference(s)
Suman Jr, G. O., & Ellis, R. C. (1977). Cementing Handbook. World Oil, Page: 18.