Estimating recovery steam drive (volume of steam in reservoir)
Input(s)
\(Q_{i}\): Heat Injection Rate \((\mathrm{BTU} / \mathrm{d})\)
\(\mathrm{t}\): Injection Time \((\mathrm{d})\)
\(E_{h s}\): Thermal Efficiency of Steam Zone (dimensionless)
\(T_{i}\): Injection Temperature \(\left({ }^{\circ} \mathrm{F}\right)\)
\(T_{a}\): Ambient Temperature \(\left({ }^{\circ} \mathrm{F}\right)\)
Output(s)
\(V_{s}\): Gross Volume of Steam in Reservoir (ac ft)
Formula(s)
\[
\mathrm{V}_{\mathrm{s}}=\frac{\mathrm{Q}_{\mathrm{i}} * \mathrm{t} * \mathrm{E}_{\mathrm{hs}}}{38.1 * 43560 *\left(\mathrm{~T}_{\mathrm{i}}-\mathrm{T}_{\mathrm{a}}\right)}
\]
Reference(s)
Pratts, M. (1986). Thermal Recovery Monograph Vol. 7. Society of Petroleum Engineers, Houston, Page: 76.