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New conceptual geological models of oil pools of Imilor-Istochny subsurface area (West Siberia, Surgut oil- and gas-bearing region) are proposed, this is the basis of computer realization performed in options of permanent geological 2D and 3D models. Models were created under the assumption that the complex structure of the geological features of the area - are connected to a nonpositive regional structures, multifacies genesis of productive reservoirs, a clinoform-like structure of the main oil and gas complex, the presence of zones of anomalous section of the Bazhenov Formation. The detailed correlation of perspective deposits is created taking into account the seismic CDP-2D and 3D, while used a clinoform-like model of the Neocomian deposits, landslide genesis of the formation of reservoirs in the anomalous "Bazhenov". Built consistent structural skeleton of the field with simultaneous using of all the reference horizons, with the specified boundary of the domain of productive strata. The boundaries of the spread of productive layers, line thinning, replacement of reservoirs. the effective thickness are of the preliminary determined due to the geological interpretation of seismic data. To justify the reservoir properties of productive beds proposed approach from the standpoint of thin-layered media. Built new geological 2-3D models of Imilor-Istochny subsurface area (the area of simulation approx 1500 km2) include 23 productive reservoirs in Upper Jurassic and Lower Cretaceous sediments, for the first time allocated 85 oil pools. These models are used to support exploration and the "local" field development, the basis for the calculation of reserves and the implementation of design and technological documents for the development of pools. To create the models used modern mathematical approaches based on variational principle and ideas of mathematical physics implemented in computer programs Isoline, GST, Roxar, Stratatool.

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