Key words:great depths, petroleum systems, PreUral foredeep, basin modeling.
To evaluate the hydrocarbon potential of deep horizons in the south-eastern part of the Volga-Urals oil and gas province the authors have carried out a numerical basin modeling of petroleum systems of four oil and gas complexes of studied object: Lower Devonian-Frasnian, Frasnian-Tournaisian, Visean-Bashkirian and Lower Permian. The studies have allowed to reconstruct geological events of petroleum systems: determine the time of formation of source rocks, reservoir rocks, seal rocks, traps, overburden rocks, identify periods of generation, migration, accumulation and preservation of hydrocarbons and the critical moment of hydrocarbon systems. According to the results of work the authors created a forecasting model of the petroleum potential of the deep horizons of the south-eastern part of the Volga-Urals oil and gas province, the analysis of which has allowed to rank the considered territory in terms of oil and gas prospects for each oil and gas complexes, and also to identify promising areas of geological exploration for oil and gas within the studied object.
