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

<div>Different modes of irreducible water microoccurrence in the throat system: (a) curved piece-necking pattern (complete blockage, ineffective percolation channel); (b) slug-filling (partially blockage, ineffective percolation channel); (c) water-film pattern (partial blockage, effective percolation channel). Note: the yellow area represents a given pore or throat surface and the blue area represents irreducible water.</div>

Geofluids

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Figure 17

Figure 17: 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 17 | 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 