In this computational model, the reservoir is initially filled with 3 components - methane, ethane, and propane. Each gas has concentration of .3, .3, and .4 respectively. Propane is reinjected at the injection well.
The domain is a square with each side length 5000ft. We place a production well is at (0,5000) and an injection well at (5000,0).
At day 1200, a 'breakthrough' is observed. At this point, the injected component starts to be produced.