Geomodel 2018

The positive influence of high uranium contents (oxidation-reduction conditions, high temperature, hydrogen) in deep fluids flows on oil formation in the Middlecarboniferous deposits of the Verhnekamskaja depression is determined.

In this paper, a method for extraction the scattered component is considered. It is based on the previously developed method of suppressing multiple waves. To extraction the weakly scattered component, the regularization method is used. The regularization is carried out over the spatial and temporal frequencies. This does not require additional cleaning from noise. This made it possible to obtain an express technique for extraction the scattered component. Examples of processing of real data in the presence of hydrocarbon deposits are given. The most outstanding distinction of the proposed methods of seismic data processing is their independence of the depth-velocity model.

Bashneftegeofizika JSC fulfilled tests in July, 2017 on Respublic of Bashkortostan area (Bizhbulyak region) to study the different group configurations and geophones types and its influence on phase-frequency distortions and signal amplitude characteristic.

The material of the report continues the direction of the reports on “Geomodel-2008/2009/2016/2017”. As a result of the applied investigations based on the new functions class “Fourier-splines” the innovative approach to the data representation and saving and also compression excluding weak components was introduced. The solution is especially actual in geophysics where particularly seismic cubes have the amount up to tens Gygabytes (and even more). The regular equidistant data conversion is got by the mostly simple algorithm as a couple of recursive filters with alternating coefficients. In general case (prognosis maps synthesis as an example) the solution is implemented based on additionally optimized the conjugated gradients method. The method is especially efficient via the hardware acceleration (parallel processing GLSL/NVIDIA CUDA). Consequently the universality of the proposed method for arbitrary dimensions data (1D - seismotraces, 2D - profiles, horizons and maps, 3D - seismic cubes) the further perspective development of the general digital standard is carrying out (incuding digital HDTV and DVD).

The Genesis of hydrocarbons of artic sector Western Siberia to artic sector Western Siberia to be according Tectonic component and foulness Jurassic and Cretaceous sediment

Prospects of oil and gas content of the Riphean deposits of the Nizhnyaya and Podkamennaya Tunguska interfluves from the point of view of the prerequisites for the formation of reservoir rocks, the presence of oil deposits and the conditions for reservoir preservation are considered. Based on a complex interpretation of seismic data and deep drilling wells, the geological map of the pre-Vendian erosion surface served as a basis for identifying zones of possible development of reservoirs in the Riphean deposits for the Baikit, Katanskaya and Severo-Tunguska oil and gas regions. A forecast is given for the distribution of hydrocarbon deposits by the phase composition in the Riphean complex

In this research paper the estimation of accuracy and reliability of the forecast of net thicknesses by using seismic attributes was reviewed. The information obtained during drilling allowed to complete an analysis of the performed forecast, the relation to the the dynamic analysis results was considered. It was ascertained which factors influence the model, the forecast error was estimated. A method for the quantitative estimation of the reliability of the forecast of net thicknesses was proposed. Conclusions about quantitative criteria for the applicability of forecasting were made.

In recent years there is a noticeable increase in interest in oil and gas of Baltic syneclise, and not only the Russian part, but also in neighboring Lithuania and Latvia. First this interest is connected with success of PJSC Lukoil in the water area of Baltic and the discovery of several oil fields, including D33. Authors based on the generalization and analysis of materials from different years, provide information on the state of the geological and geophysical study of the region (with the accent to the Russian part), tha main results of oil exploration in recent years, characterized by geological structure and oil and gas content, the state of resource base of territories and water areas, including sea bays. Given the proposals for continuing the work.

The most important feature of the structure of the Caspian-Black Sea region is the intense state of its subsoil, high and diverse geodynamic, volcanic, seismic, geofluidodynamic activity, etc. Geodynamic activity is associated with various kinds of discharge of fluid dynamic stresses, primarily intensive ascending discharges of various mobile fluids and their components - oils and gases, clay flows and the manifestation of thermobaric anomalies. A vivid manifestation of geodynamic activity is its explosive variety - “sedimentary” volcanism: mud, gas and oil, mixed, etc., which in turn determine the intensity of geofluidodynamic processes.

For more origin criteria oilfield White Tiger analyzed the material composition of oil and organic matter surrounding rocks, including - the analysis of patterns of relative distribution of saturated hydrocarbons-biomarkers at the molecular level, as well as their group composition. The data obtained allow us to confirm at a qualitatively new level the conclusion about the organic nature of oil in the crystalline basement of the Vietnamese shelf. Lying in the base of hydrocarbon deposit White Tiger by its characteristics do not differ from oil in the sedimentary sequences of Oligocene-Miocene cheholnogo complex, and those, in turn, complementary to the organic matter contained in sediments. These data suggest quite confidently that the accumulation of hydrocarbons in the foundation Kyulongskogo pool are in the secondary occurrence, and that the source of their formation is a sedimentary organic matter of productive systems of the Oligocene age.