Quantitative estimation of overpressure caused by oil generation in petroliferous basins

► In this study, an equation for the pressure change due to oil generation was derived. ► The equation was calibrated with the results from closed pyrolysis experiments. ► A good correlation was achieved between experiment results and the calculated data. ► The most effective parameter on the pressure change is the residual oil coefficient. ► Overpressure cannot be generated if the residual oil coefficient is less than 0.75.