Formula 2.85
Fluid volume required to spot a plug
Input(s)
$\mathrm{L}_{\mathrm{t}}$: Length of Tubing or Pipe $(\mathrm{ft})$
$\mathrm{L}_{\mathrm{p}}$: Length of Plug $(\mathrm{ft})$
$\mathrm{C}_{\mathrm{t}}$: Tubing or Pipe Capacity $(\mathrm{bbl} / \mathrm{ft})$
$\mathrm{V}_{\mathrm{s}}$: Spacer Volume behind Slurry (bbl)
Output(s)
V: Fluid Volume Required (bbl)
Formula(s)
$$ \mathrm{V}=\left(\left(\mathrm{L}_{\mathrm{t}}-\mathrm{L}_{\mathrm{p}}\right) * \mathrm{C}_{\mathrm{t}}\right)-\mathrm{V}_{\mathrm{s}} $$
Reference(s)
Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition, Gulf Professional Publishing, Page: 62.