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Tyumen 2021
- Conference date: March 22-26, 2021
- Location: Tyumen, Russia
- Published: 22 March 2021
81 - 88 of 88 results
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Uncertainty Analysis of Geologic Parameters of Upper Jurassic Deposits of Western Siberia on The Example of Sredne-Nazymskoe Field
Authors O.O Kim, V.D Nemova, T.A Matuhina and A.M PogodaevaSummarySredne-Nazymskoye field is the main experimental-industrial testing ground for LUKOIL for the study of the Upper Jurassic deposits of Western Siberia. The 3D geological model of the field was built. The article is about uncertainty analysis of geological parameters. Uncertainty analysis was carried out on the 3D geological model. Big geological data was interpreted. The histograms of distribution were created for each geological parameter. The results obtained are applicable for forecasting development options, assessing their likely profitability. This approach is an additional decision-making tool when planning the development and additional study of the field. The second application of these calculations is the use of histograms of the distribution of calculated parameters when assessing territories of a similar geological structure as a reference object. The methodology allows estimating the resources of licensed areas with the distribution of probabilistic forecast resources. The third application of this approach is to assess the sensitivity of the influence of each of the input parameters in modeling on the probability of the volumes of geological oil reserves of the Upper Jurassic deposits.
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Seismic tomography as a way to refine the depth-velocity model of anomalies in the upper part of the section on the example of a deposit in Western Siberia
More LessSummaryThe accuracy of structural constructions strongly depends on the quality of accounting for anomalies in the upper part of the section. It is important that the variety of seismogeological conditions and the differences in the field methods of observation when registering the wave field determine the complexity of developing universal methods that can uniquely solve the problem of accounting for the inhomogeneity of the HRD. This is relevant for both three-dimensional and two-dimensional seismic survey materials, regardless of the observation systems. In addition, depending on the area of work, the structure and heterogeneity of the upper part of the section vary greatly, so the structure model and accounting methods also differ from each other, and should optimally take into account heterogeneous quantitative and qualitative characteristics.
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Model of Development of The Yamalo-Kara Region Based on The Complex of Geological and Geophysical Data
By A. N ZaitsevSummaryThis article presents the results of the study of the territory of the Yamalo-Kara region, including the South Kara water area and the Yamal Peninsula, at three levels of research.
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Local 3D + VSP Project, Detailed Seismic Work on Cluster Wells
Authors A. A Shevchenko, A.E Korolev, K.V Baranov and D.K MedvedevSummaryIn the process of additional exploration and operation of oil and gas fields, problems arise in detailing the structure of the near-wellbore space at a distance of 2-3 km from the well. 3D surface seismic images of the environment, observed, processed and interpreted prior to drilling, are usually processed under conditions of uncertainty in the structure of the environment. Without the involvement of borehole information, the velocity characteristics of the medium obtained as a result of processing do not allow obtaining ideal images of the medium and absolutely accurate structural constructions. After the well is drilled, additional seismic observations can be performed, which will help to take into account all the ambiguities that existed during the initial study of the object. To improve the accuracy, detail and reliability of the results of surface seismic survey in the vicinity of the well, it is proposed to use the technology of combined surface-well observations - “Local 3D + VSP project.
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Study of Fluid-Geodynamic Processes in The Section of The Shelf of The Barents and Kara Seas According to Modern 3D Seismic Data
By V.N BorodkinSummaryThe study area is associated with the waters of the Barents and Kara Seas, within which the industrial oil and gas content of the Jurassic-Cretaceous deposits is established, and according to 3D seismic data, signs of vertical migration of hydrocarbons (HC) are observed.
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Assessment of the correctness of the determination of the specific electrical resistance of collectors by GIS devices
By R.A ShishkinSummaryTo determine the electrical resistivity of reservoirs of oil and gas fields, various domestic and foreign devices for geophysical research of wells are currently used. As a rule, when interpreting resistance methods, questions arise at the stage of determining the oil and gas saturation coefficient.
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Using 3D Seismic Exploration to Solve Engineering Problems
More LessSummaryEngineering and geological conditions are determined by the structure, composition and properties of sediments (soils) of the upper part of the section. In order to identify and assess possible geological complications during the drilling of the bottom part of the section, along with areal engineering surveys, 3D seismic data are successfully used.
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Hydrogeochemical and Microbiological Features of UGS in The Aspect of Hybrid Storage of Natural Gases
Authors L.A Abukova, D.S Filippova, E.A Safarova, A.V Bychenkov and R.N AbdrashitovaSummaryThe paper describes the analysis of the microbiological specification and hydrochemical characteristics of the UGS facility located in the aquifer of the Moscow hydrogeological basin. A low abundance of aerobic organotrophic bacteria and anaerobic fermentative, denitrifying and sulfate-reducing bacteria in samples of formation water from UGS waters was shown. A high representation of bacteria of the genus Marinobacter, corresponding to the marine genesis of stratal waters, was noted. This testifies to the insignificant anthropogenic impact on the geological environment of the long-term operation of the Gdov horizon and the ecological reliability of the operating technologies used. Microbiological monitoring and zoning of the UGS territory according to the prevalence of the most typical microbiological communities will contribute to quality control during the operation of the UGS facility.
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