Stuck pipe calculations - Method-1
Input(s)
OD: Outer dia of tubing (in.)
ID: Inner dia of tubing (in.)
S: Stretch (in.)
PF: Pull force in thousands of pounds (10001b)
Output(s)
fpc: Free Point Constant (dimensionless)
\(h_{f}\): Feet of Free pipe \((\mathrm{ft})\)
Formula(s)
\[
\begin{gathered}
f p c=\left(O D^{2}-I D^{2}\right) * 0.7854 * 2500 \\
h_{f}=S * \frac{f p c}{P F}
\end{gathered}
\]
Reference(s)
Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 74.