The work is devoted to the study of the geological structure features of the Jurassic deposits of the Rybalny oil field located in the Tomsk region. The base for the study was 2D, 3D seismic survey data and deep drilling materials from exploration and production wells. Deposits of the J3 formed in the transitional region of sedimentogenesis, as well as sand layers of the upper subformation of the Tyumen Formation, are productive there. In addition, we assume that deposits of hydrocarbons may be detected in the Lower Cretaceous sediments.

Some aspects of seismic deconvolution are considered. It is shown that the traditional justification of spiking deconvolution is correct only for a minimum-phase wavelet. For a mixed-phase and band-limited wavelet deconvolution solves the problem of expanding the amplitude spectrum within the signal frequency band, and this is achieved by means of autoregressive spectrum estimation.

Modeling of hydrocarbon formation conditions in the Gerasimov field describes tectonic evolution of the area, thermal and burial history of the sediments, evolution of the thermal maturity of organic matter and transformation ratio, quantitative assessment of the hydrocarbon generated mass. In total, the source rocks have generated almost 7 billion tons of hydrocarbon equivalents. At the present stage, hydrocarbons are generated by organic matter of the Bazhenov and Tyumen formations.

The results of mathematical modeling of a thin and wedding formation with variable thickness, porosity, and a layer of mineralized water are presented. The values of twelve attributes were calculated using these models. The results demonstrate possible relationships of some attributes under consideration with both porosity and thickness. Other attributes show relationships only with thickness, while individual attributes reveal relationships with thickness and a layer of mineralized water. Thus, the modeling performed allowed us to form groups of attributes that optimize the determination of object characteristics and demonstrated their possible nonlinear relationships with attributes.

We present a methodological approach to predicting oil and gas occurrence by the example of the Chkalov field, which is located in the southeast of the West Siberian petroleum basin. The M bed of the Paleozoic weathering crust and the Yu11 bed of the Upper Jurassic Vasyugan Formation contain oil and gas accumulations. Hydrocarbon traps were already formed during the Jurassic stage of the development of the basin. Throughout geological history, the structures remained closed, changing their shape and amplitude insignificantly. According to the comprehensive interpretation of seismic exploration and deep drilling data and basin modeling technology, oil and gas accumulations, as well as a number of prospective oil and gas traps, have been identified. Structural, lithological, and tectonic factors provide hydrocarbon trapping.