Buoyancy weight

Input(s)

$\rho_{\mathrm{m}}$: Density of Mud $(\mathrm{ppg})$

$\rho_{\mathrm{s}}$: Density of Pipe Material $(\mathrm{ppg})$

$\mathrm{d}$: Depth $(\mathrm{ft})$

m: Weight (ppf)

Output(s)

B: Buoyancy Factor (fraction)

W: Buoyancy Weight (lbf)

Formula(s)

$$ \begin{gathered} \mathrm{B}=\left(1-\left(\frac{\rho_{\mathrm{m}}}{\rho_{\mathrm{s}}}\right)\right) \\ \mathrm{W}=\mathrm{B} * \mathrm{~m} * \mathrm{~d} \end{gathered} $$

Reference(s)

Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition, Gulf Professional Publishing, Page: 20.