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On the example of 50 heavy oil fields prepared by PJSC В«TatneftВ» for pilot development in the territory of Tatarstan, the relationships of the changes in their properties: density, sulfur and paraffin content with the oil-bearing area, effective average oil-saturated thickness of reservoir productive rocks, as well as with coefficient of their sand content, permeability and porosity were investigated. The analysis showed differentiation of technological properties of heavy oils within the same productive layers,...

In model experiments, the influence of various media on the degree of transformation of kerogen of the Domanic rock in hydrothermal processes was studied. The object of the study was a sample of the rock, from the interval of depths of 1712.5-1718.5 m of the Semiluki-Bureg (Domanic) deposits of the Berezovskaya area of the Romashkinsky deposit, which is a dark gray marl alternating with limestone. The content of OM in the rock is 11.73%, according to the thermal analysis data, a significant part of which (9.56%) i...