Stripping/snubbing calculations - Constant BHP with a gas bubble rising
Input(s)
Dp: Incremental pressure steps that the casing pressure will be allowed to increase (psi)
Ca: Annular Capacity (in. \({ }^{2}\) )
G: Gradient of Mud (psi/ft)
Output(s)
V: V for constant BHP with a Gas Bubble Rising (bbl)
Formula(s)
\[
V=(D p) * \frac{C a}{G}
\]
Reference(s)
Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 142.