Figure 13.
The image displays two graphs related to gas dynamics in experimental settings. The left graph shows gas pressure over time, with the horizontal axis labelled as time in days, ranging from 0 to 400, and the vertical axis labelled as gas pressure in megapascals, ranging from 0 to 10. It illustrates phases of gradual gas injection, gas draining, and saturation or re saturation processes, with each phase clearly marked. The right graph presents mass flux, showing three curves for dissolved advective flux, gas advective flux, and dissolved non advective flux, with gas pressure in megapascals on the horizontal axis and degree of saturation in percentage on the vertical axis. This graph highlights saturation changes over time, illustrating key aspects of gas accumulation and desaturation dynamics. Diagrams are also included, showing specific gas injection setups and experimental locations to provide context to the graphical data.Comparison of back pressure evolution in Model A (a). Gas pressure – degree of saturation, total mass fluxes path, (during first gas BT, 60 days) for the considered location on Path II in Model A (b)