Difference in pressure gradient between the cement and mud
Input(s)
\(\mathrm{W}_{\mathrm{c}}\): Cement Weight \((\mathrm{ppg})\)
\(\mathrm{W}_{\mathrm{m}}\): Mud Weight (ppg)
Output(s)
PG: Pressure Gradient between Cement and Mud (psi/ft)
Formula(s)
\[
\mathrm{PG}=\left(\mathrm{W}_{\mathrm{c}}-\mathrm{W}_{\mathrm{m}}\right) * 0.052
\]
Reference(s)
Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition Gulf Professional, Publishing, Page: 66.