Linear annular capacity of pipe

Input(s)

$\mathrm{D}_{\mathrm{h}}$: Inside Diameter of Casing Against the Pipe (in.)

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

Output(s)

$\mathrm{C}_{\mathrm{o}}$: Annular Linear Capacity of Pipe $(\mathrm{bbl} / \mathrm{ft})$

Formula(s)

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

Reference(s)

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