Pore-Scale Imaging of the Oil Cluster Dynamic during Drainage and Imbibition Using In Situ X-Ray Microtomography

Figure 1

Schematic illustration of all experimental stages performed on (a) water-wet and (b) oil-wet plugs ( and are the injection rate of brine and oil, resp.; and are the quantity of injection pore volume of brine and oil, resp.).

(a)

(b)