## 7 Taking One Step Further down the Road on the Hybrid Computational Platform
\begin{table}
\begin{tabular}{|c|c c c c|} \hline
**Gategory** & Inputs & Units & Minimum & Maximum \\ \cline{2-5}  & Wellhead pressure & psia & 100 & 2000 \\ \cline{2-5}  & Tubing diameter & inches & 1 & 4 \\ \cline{2-5}  & Pipe roughness & ft & \(1.00\times 10^{-4}\) & \(2.00\times 10^{-3}\) \\ \cline{2-5}  & Total depth & ft & 200 & 16,000 \\ \cline{2-5}  & Fractional depth & fraction & 0 & 1 \\ \cline{2-5}  & Temperature at depth & °F & 60 & 340 \\ \cline{2-5}  & Wellhead temperature & °F & 60 & 180 \\ \cline{2-5}  & Temperature gradient & °F/ft & 0.005 & 0.02 \\ \cline{2-5}  & **Molar feed into well** & lb-moles/s & 0.00125 & 0.5 \\ \hline Initial water mole fraction & fraction & 0 & 1 \\ \cline{2-5}  & Water cut & percentage & 0 & 98.7 \\ \cline{2-5}  & Oil viscosity & lb-moles/ft-s & \(1.7\times 10^{-5}\) & \(1.5\times 10^{-3}\) \\ \hline Gas viscosity & lb-moles/ft-s & \(3.4\times 10^{-6}\) & \(9.9\times 10^{-3}\) \\ \cline{2-5}  & Water viscosity & lb-moles/ft-s & \(4.7\times 10^{-4}\) & \(8.1\times 10^{-4}\) \\ \cline{2-5}  & Oil specific gravity & fraction & 0.49 & 0.94 \\ \cline{2-5}  & Gas specific gravity & fraction & 0.47 & 0.93 \\ \cline{2-5}  & Water specific gravity & fraction & 1 & 1.05 \\ \cline{2-5}  & Oil flow rate & STB/D & 10 & 32,767 \\ \cline{2-5}  & Gas flow rate & MMSCF/D & 0 & 15.6 \\ \cline{2-5}  & Water flow rate & STB/D & 0 & 2180 \\ \cline{2-5}  & Gas-oil ratio & SCF/STB & 0 & 168,068 \\ \cline{2-5}  & Gas-liquid ratio & SCF/STB & 0 & 94,868 \\ \cline{2-5}  & **Mole fraction** of **C**i & **fraction** & 0.20 & 0.94 \\ \cline{2-5}  & Male fraction of **C**i & fraction & \(2.4\times 10^{-5}\) & 0.59 \\ \cline{2-5}  & Male fraction of **C**i & **fraction** & \(1.9\times 10^{-6}\) & 0.56 \\ \cline{2-5}  & Male fraction of **C**i & fraction & \(9.3\times 10^{-6}\) & 0.65 \\ \cline{2-5}  & Male fraction of **C**i & fraction & \(6.5\times 10^{-7}\) & 0.54 \\ \cline{2-5}  & Male fraction of **C**i & fraction & \(2.9\times 10^{-6}\) & 0.62 \\ \cline{2-5}  & Male fraction of **C**i & fraction & \(1.7\times 10^{-5}\) & 0.63 \\ \cline{2-5}  & Critical temperature of **C**i & **o**R & 914 & 1409 \\ \cline{2-5}  & Critical temperature of **C**i & **o**R & 1428 & 1724 \\ \cline{2-5}  & Critical pressure of **C**i & psia & 211 & 477 \\ \cline{2-5}  & Critical pressure of **C**i & psia & 105 & 203 \\ \cline{2-5}  & Accentricity factor of **C**i & unitless & 0.28 & 0.82 \\ \cline{2-5}  & Accentricity factor of **C**i & unitless & 0.86 & 1.33 \\ \cline{2-5}  & Molecular weight of **C**i & lb/lb-moles & 86 & 275 \\ \cline{2-5}  & Molecular weight of **C**i & lb/lb-moles & 291 & 539 \\ \cline{2-5}  & Volume shift parameter of **C**i & unitless & \(-0.059\) & 0.142 \\ \cline{2-5}  & Volume shift parameter of **C**i & unitless & 0.139 & 0.358 \\ \cline{2-5}  & Critical volume of **C**i & cubic ft/lb-mole & 5.5 & 16.5 \\ \cline{2-5}  & Critical volume of **C**i & cubic ft/lb-mole & 17.2 & 31.3 \\ \cline{2-5}  & Parachor of **C**i & unitless & 250.1 & 710.5 \\ \cline{2-5}  & Parachor of **C**i & unitless & 742.2 & 1090.4 \\ \hline \end{tabular}
\end{table} 
Table 4: Input parameters used in the construction of the ANN-based wellbore model. _Appl. Sci._**2021**, _11_, 6347  
Figure 17: Architecture of the ANN-based wellbore hydraulics model. \begin{table}
\begin{tabular}{c c c c c c c c c c c} \hline  & \multicolumn{3}{c}{Pressure (1993)} & \multicolumn{3}{c}{Resditive Desfitter (95)} & \multicolumn{3}{c}{Positive (grid)} & \multicolumn{3}{c}{Positive (05)} \\ \cline{4-11}  & \multirow{2}{*}{**ANN**} & \multirow{2}{*}{**Numerical**} & \multirow{2}{*}{**Field**} & \multirow{2}{*}{**Field Data**} & \multirow{2}{*}{**Field data vs.**} & \multicolumn{3}{c}{Hasan} & \multicol  
The ideas and observations presented in these experiments suggest similar coupled protocols in some other reservoir engineering applications can be attractive not only from the perspective of gaining computational speed but also capturing the reservoir heterogeneities more accurately.