The Visual and Quantitative Study of the Microoccurrence of Irreducible Water at the Pore and Throat System in a Low-Permeability Sandstone Reservoir by Using Microcomputerized Tomography

Figure 7

Distribution of irreducible water saturation of a given slice with the same areal porosity (void space): (a) (slice number: 362); (b) (slice number: 425); (c) (slice number: 226). Note: gray = rock matrix; white = pyrite; blue = irreducible water; red = oil.

(a)

(b)

(c)