Equivalent density of a wellbore fluid

Input(s)

$\mathrm{M}_{\mathrm{w}}$: Mud Weight (ppg)

TVD: True Vertical Depth $(\mathrm{ft})$

APL: Annular Pressure Loss (psi)

Output(s)

ECD: Equivalent Circulating Density (ppg)

Formula(s)

$$ \mathrm{ECD}=\frac{\mathrm{APL}}{0.052 * \mathrm{TVD}}+\mathrm{M}_{\mathrm{w}} $$

Reference(s)

Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition, Gulf Professional Publishing, Page: 6.