Impact of Pore-Scale Characteristics on Immiscible Fluid Displacement

Figure 2

Tube network model extraction and modification. (a) X-ray CT image of a specimen (left) and the extracted tube network model (right). The dimensions of the network model were , and the model comprised 5775 tubes with a coordination number of . (b) Four tube size distributions used to modify the extracted tube network model. Three additional tube size distributions with different standard deviations (, , and ) were generated. The average tube size was kept constant, along with the tube-size rank order of the individual tubes.

(a)

(b)