**9. Conclusions**

Based on the interpretation of the results of seismic surveys carried out in the northwestern part of the TPP, including its water areas, a generalization of the results of deep drilling that included parametric well No. 1—Severo-Novoborskaya, structural maps, and thickness maps of all seismic facies complexes developed in the territory and the water area—which were used in basin modeling with the Temis software package for the purpose of reconstructing the conditions of immersion and the transformation of potential oil and gas formations—has been significantly refined, the most promising of which is the Silurian OGSH.

According to the created basin model, the total mass of hydrocarbon matter generated only by the oil source strata of the work area is 3.17 billion TOE. In addition, the modeling allowed us to ge<sup>t</sup> an idea of the time and conditions needed for the formation of large zones for the possible accumulation of hydrocarbons. Zones of HC paleoaccumulation are predicted based on their space–time relationships with possible centers of generation, on comparisons with periods of the intensive generation of HC both from space directly located within the work area and beyond (noting the possible migration), and on migration directions. It is concluded that it is necessary to search for transit routes of HC migration from the gas formation center located in the water area and the HC generation center located within the Pechora–Kozhvinsky megalithic bank.

According to the constructed model, the total generated mass of the HC substance within the work area is 3.17 billion tons of HC. This value displays the mass of hydrocarbons generated only by the site's own oil source strata, and it does not take into account hydrocarbons that could migrate from the outside, from the Pechora–Kolva aulacogen, or from the area north of Kolguev Island from the Domanik OGSH.

The conducted research allowed us to identify promising zones of oil and gas accumulation (PZOGA), spatially confined to the western slope of the West Kolguevskaya depression, the Sengei ledge, the zones of articulation of the Naryan–Marsky stage with the Nerut graben, and the Seduyakhinsky shaft. These PZOGA are considered as the primary objects of exploration for hydrocarbon deposits in the Middle Ordovician-Lower Devonian and Middle Devonian-Lower Frasnian oil and gas complexes. The most important geological feature of the development of these complexes is the formation of extended traps of the stratigraphic type (sometimes with tectonic shielding), which allows us to hope for the formation of large zones of hydrocarbon accumulation located in the frontal part of the migration flow from the submerged areas of the region.

**Author Contributions:** O.P.: clarification of oil and gas content prospects of lower-middle Paleozoic sediments of the Timan–Pechora oil and gas province. Analysis of the development of oil and gas source strata, updating the assessment of the oil and gas potential (oil and gas resources) of the Arctic zone of TPP, writing the section "Prospects of oil and gas potential", "Basin modeling" identification of tectonic boundaries of cratons and platform plates according to the tectonic scheme of the consolidated foundation, and "Conclusions". Y.N.: compilation of the seismic profiles of the Arctic zone of TPP, processing of geophysical data, writing the sections "The economic significance of the resource development of the hydrocarbon potential of the of the Russian Federation" and "Source material". V.N.: processing of geochemical data, writing the sections "Development of the structural frame" and "Promising oil and gas complexes and oil and gas generating strata of the Lower Paleozoic part of the section". All authors have read and agreed to the published version of the manuscript.

**Funding:** The research was carried out with the support of a subsidy for the implementation of the state task in the field of scientific activity for 2021 No. FSRW-2020-0014.

**Data Availability Statement:** Not applicable.

**Conflicts of Interest:** The authors declare no conflict of interest.
