Hydrostatic pressure decrease at total depth caused by gas-cut mud

Input(s)

MG: Mud Gradient (psi/ft)

$\mathrm{C}$: Annular Volume (bbl/ft)

V: Pit Gain (bbl)

Output(s)

P: Reduction in Bottomhole Pressure (psi)

Formula(s)

Reference(s)

Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition, Gulf Professional Publishing, Page: 129.