... reservoir void space is represented by West Siberan argillous gaize and connected to pores, while microfissure capacity is of minor nature, accounting for 1/30 of total porosity. This means that the reservoir belongs to porous fractured type of formation. Flow matrix channels of high OCT gaizes are significantly smaller than those in which silica is mostly represented by fine-grained quartz. Prevailing diameters are 10 and 100 nm for NB1 and NB2 respectively. Capacities of ultra-microcapillary pores, which ...

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