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 6

2D distribution characteristics of irreducible water in core slices: (a) distribution of areal porosity and irreducible water porosity in 2D core slices; (b) distribution of irreducible water saturation of a 2D slice; (c) frequency histogram of irreducible water distribution in the core sample; (d) relationship between areal porosity and irreducible water saturation.

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(b)

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