Oil resources development from deep horizons in historically oil producing regions

The paper discusses the strategic sectors of national resource base buildup and maintaining its competitiveness. The main sedimentary basins are ranked in accordance with the potential in terms of hydrocarbon resources development at great depths. The authors draw a conclusion that it is necessary to prepare the special integrated projects combining the efforts of basic sciences, government, and business aimed at deep development of oil and gas bearing basins having a long history of oil and gas production. The strategic importance of this cooperation is shown by the example of the Eurasia international scientific project and the Astrakhan Arch multiclient project implementation in the Caspian Depression. The purpose of the first project is substantiation of giant oil and gas field prospecting criteria taking into account the fluid dynamic features at great depths. The purpose of the second project is testing of new working practices in geological exploration aimed at hydrocarbon resources development at great depths within the allocated fund of subsurface mineral resources. The conceptual framework of building geological and geophysical model of the subsalt sequence in the Caspian oil and gas bearing basin, which ensures geological efficiency of the mentioned projects implementation is discussed