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{ }^{2} )

G: Gradient of Mud (psi/ft)

Output(s)

V: V for constant BHP with a Gas Bubble Rising (bbl)

Formula(s)

V=(Dp)CaGV=(D p) * \frac{C a}{G}

Reference(s)

Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 142.


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