Total oil production from in-situ combustion - Nelson and McNeil

Input(s)

$V_{r}$: Volume of reservoir Burned $\left(\mathrm{ft}^{3}\right)$

$S_{i}$: Initial oil Saturation (fraction)

$S_{f}$: Oil Saturation left after Combustion (fraction)

$V_{p}$: Pattern Volume $\left(\mathrm{ft}^{3}\right)$

$\emptyset$: Porosity (fraction)

Output(s)

$N_{p}$: Cumulative Oil production (bbl)

Formula(s)

$$ \mathrm{N}_{\mathrm{p}}=7758 * \emptyset *\left(\mathrm{~V}_{\mathrm{r}} *\left(\mathrm{~S}_{\mathrm{i}}-\mathrm{S}_{\mathrm{f}}\right)+0.4 *\left(\mathrm{~V}_{\mathrm{p}}-\mathrm{V}_{\mathrm{r}}\right) * \mathrm{~S}_{\mathrm{i}}\right) $$

Reference(s)

Enhanced Oil Recovery, Green \& Willhite, Page: 395.