Gas Saturation in Water-Drive Gas Reservoirs

S_g=\frac{(G-G_p)B_g-\frac{W_e-W_pB_w}{1-S_{wi}-S_{grw}}S_{grw}}{\frac{GB_{gi}}{1-S_{wi}}-\frac{W_e-W_pB_w}{1-S_{wi}-S_{grw}}}

Tabular solver

Run the same equation across multiple cases and compare results in one table.