... (below 1?10-3 um2). primarily. As this work shows, this is explained by the fact that the main part of pores (up to 75%) of the rocks in question is of subcapillary sizes making fluid movement practically impossible. At that, rock lithology affects the voids structure significantly. Thus, reservoirs with different content of the amorphous silica have different effective gas-filled porosity. Quantitate evaluation of the part of the differently sized pores among the voids in common is a lithological-capacitive ...

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