Prospects for Oil Bearing Capacity of the Pre-Jurassic Formations within the Khanty-Mansiysk-Frolovsk Search Area

The low hydrocarbon potential of the pre-Jurassic rocks of Khanty-Mansiysk Autonomous Okrug - Yugra has, on the one hand, a geological justification, but on the other hand, the degree of this justification raises serious doubts due to the extremely low geological and geophysical study of this structural stage. However, geological discoveries of recent years, which include not only drilling of new deep wells, but mainly re-processing and re-interpretation of previously obtained seismic and drilling materials, allows to reconsider the degree of prospectivity of the pre-Jurassic deposits in the direction of increasing its oil potential. The article, based on the geological and geophysical works and complex seismic stratigraphic analysis of the Khanty-Mansiysk-Frolovskaya zone, substantiates the necessity to continue prospecting and exploration drilling at the most reliably identified oil and gas promising sites in the Lower Jurassic and pre-Jurassic rock complexes.