... injection rates compared to the vertical core flooding with the concentration profiles showing significant capillary tailing effects at higher flowrates. This signified the effect of gravity in the horizontal orientation was more pronounced at lower injection rates during the injection of CO 2...

... complex reservoir experiment diffusion coefficient subsurface storage co 2 co2 injection core sample dispersion coefficient shale gas concentration profile coefficient enhanced gas recovery enhanced recovery ch 4 Upstream Oil & Gas salinity psig displacement efficiency Introduction...