Annular volume capacity of pipe

Input(s)

$\mathrm{D}_{\mathrm{h}}$: Inner Diameter of Casing against Pipe (in.)

$\mathrm{D}_{\mathrm{o}}$: Outside Diameter of Pipe (in.)

L: Length of Pipe (ft)

Output(s)

$\mathrm{V}_{\mathrm{a}}$: Annular Volume Capacity (bbl)

Formula(s)

$$ \mathrm{V}_{\mathrm{a}}=\frac{0.7854 *\left(\mathrm{D}_{\mathrm{h}}^{2}-\mathrm{D}_{\mathrm{o}}^{2}\right) * \mathrm{~L}}{808.5} $$

Reference(s)

Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015. Houston, Texas, Page: 44.