Stuck pipe calculations - Method-2

Input(s)

e: Pipe Stretch (in.)

Wdp: Drill Pipe Wt. (lb/ft)

Pd: Differential Pull (lb)

Output(s)

$h_{f}$: Feet of Free pipe (ft)

Formula(s)

$$ h_{f}=735294 * e * \frac{W d p}{P d} $$

Reference(s)

Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 74.