The drastic reduction in the amount of oil as a result of slowed growth of the world s largest economies and the fall in consumption, is promoting a change in the behavior of the Petroleum Industry, since the reduction in production costs coupled with increased productivity is essential for the sector. Moreover, environmental aspects are evident due to the global temperature rise in recent years.Therefore the Advanced Recovery Method WAG (Water Alternating Gas) with carbon dioxide injection (CO2) is able to combine oil production increase with a reduction in carbon dioxide emissions in the atmosphere. This dissertation is intended to study the effect of WAG-CO2 on the recovery factor and carbon dioxide sequestration in sandstone reservoir. For this, numerical simulations streaming will be held in black-oil and compositional models using the WinProp tools, Builder, IMEX and GEM, the simulator package CMG (Computer Modelling Group). Being the IMEX used for black-oil models and the GEM to compositional. Knowledge of permeability, hysteresis phenomena and interfacial tension for the numerical simulation are essential to define the development plan and the process variables responsible for the increase in the recovery factor and economy. However, IMEX and GEM not allow the interfacial tension and hysteresis be studied simultaneously. The result of simulations for interfacial tension were, on average, greater than 3 percent for the cases with hysteresis, and 0.6 percent higher in injections with starting gas. Furthermore, the increase in number of producing and injection wells improved sweep of the reservoir, however, aspects such as reservoir pressure, gas production and water must be monitored.