Mud weight increase required to balance pressure
Input(s)
F: Differential Force (lb)
A: Area Below Casing Shoe (in. \({ }^{2}\) )
\(\mathrm{L}_{\mathrm{c}}\): Casing Length \((\mathrm{ft})\)
Output(s)
\(\mathrm{W}_{\mathrm{m}}\): Mud Weight increase Required (ppg)
Formula(s)
\[
\mathrm{W}_{\mathrm{m}}=\frac{\mathrm{F}}{\mathrm{A} * 0.052 * \mathrm{~L}_{\mathrm{c}}}
\]
Reference(s)
Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition, Gulf Professional Publishing, Page: 67.