Figure 2.19. Plot of sensitivity calculations with varying aquifer and reservoir parameters (e.g., aquifer height, reservoir radius, aquifer permeability, and aquifer porosity). In each case, the value of only one parameter was changed. An average reservoir pressure profile was generated, so that the resultant F/E versus W_e/E plot was a straight line with unit slope and its OOIP value was within acceptable tolerances. The plotted pressure profiles show the effects of varying different aquifer and reservoir parameters.