The article is devoted to the features of the geological structure of Jurassic-Cretaceous deposits of Frolovskaya megadepression. These features are derived from the results of the generalization of the materials of regional seismic profiles, maps of gravity and magnetic prospecting, drilling data. The main petroleum prospects are associated with Jurassic deposits and pre-Jurassic basement. We conclude that it is necessary to intensify further researches with carrying out the entire complex of geophysical methods, including magnetic and gravity prospecting with an increased density of observations.

The article is dedicated to the memory of the scientist Vladimir Mikhailovich Matusevich. It considers his unpublished ideas and thoughts, with some additions by the authors of the article, about the close connection between hydrogeochemistry and hydrocarbon accumulations and about its role in the search for «missed» oil and gas deposits.

The article considers the large gas fields geology aspects of which are totally in conflict with the principles of anticline theory of hydrocarbon accumulation. These fields are situated in orogenic formations and associated with large synclinal structures. Any seals and lateral screens are absent. Gas saturated reservoirs are surrounded by relatively large-porous water-saturated sandstones and retained in pools due to the capillary forces. The nature of these fields is determined by the molecular physics laws, which effect in oil-wet porous media. These areas are abundant within the geosynclinal systems where synclinal structures can be considered as perspective for oil-and-gas content.

The study of underground ice and frozen soils on the north of the Gydan Peninsula was made in 2016. The article is devoted to the results of the study. The granulometric and geochemical composition of the frozen deposits, the hydrochemical composition of the underground ice were determined. The interrelation between the composition and genesis of ice, with accumulation and freezing conditions of deposits was identified.

The article deals with the results of studied structure features of reservoirs in productive zeolite-containing rocks. We have established that the content of pelite fraction and carbonate content have impact on the deterioration of reservoir properties, and the development of zeolitization is characteristic for zones of improved reservoir properties.It is shown that the presence of the core glow in the ultraviolet light for zeolite-containing rocks doesn’t guarantee the receipt of the product during testing and will depend on the thickness ratio with different intensity of luminescence. The change in wettability of the rock in the reservoir conditions, an increase in the share of residual oil, and the presence of oil in the dead-end pores are the most likely explanation for the described situation. If the core luminescence is «weak», the product from the reservoir can only be obtained by applying special impact methods.

The article is devoted to the actual topic of improving the direct search for hydrocarbon deposits by the method of reflected waves. A method for detecting hydrocarbon deposits by the method of reflected waves in the superimposed electric field is developed. The anomalous effect of the deposit is detected by the parameter P . This parameter is the ratio of the normalized energy of the seismic signal after the excitation of the medium by an electric field to the normalized energy of the seismic signal before excitation by this field in different time windows. Field verification seismic works on the known oil deposit have been performed. The interpretation of the proposed method gave positive results. The deposit is confidently allocated in a seismic field on depth and laterals due to preliminary influence by an electric field on a geological section with a deposit.

The article analyses reservoir properties of Jurassic sediments, where there is textural non-uniformity, and estimates the role of laminated clay volume in determining the calculation parameters. The forecast of flow rates and comparison with actual data of wells operation are produced with the counting of adjusted values of permeability and thickness. It is recommended to carry out the tuning of the hydrodynamical model taking into account the division of the phase permeability by layered clay. According to the results of the performed work we can expect that complete analysis of well testing data and the core materials will allow increasing technological efficiency.

At the present stage of the development of geological sciences more detailed lithological and petrographic studies become more important. Microscopic studies of core material in the Upper Taurus substage made it possible to isolate the lithotypes of carbonates characteristic of the investigated field. There are cloddy, clot-detrital, clay-detrital, and foraminifera-clotting lithotypes.The collectors are only limestones lumpy and clotty-detritus of the isolated structural-genetic differences. The study of the core material of the Upper Taurus substage of the Alekseevsky oil field allowed to conclude that the Kizel and Cherepets horizons are separate development objects.

The article is devoted to the study of difference between the electric properties received in atmospheric and thermobaric conditions for unconsolidated rocks. By the results of the experiments made on a unconsolidated core for dependence of parameter of saturation on coefficient of water saturation there was a reduction of values of coefficient of saturation (n) that doesn’t meet theoretical expectations. Such situation is explained by extent of consolidation of slightly cemented samples.It is shown that in the absence of necessary experiments in sheeted conditions, as the recommended equation for determination of subcalculating parameters of unconsolidated core of cenomanian deposits use of the bending-around line to the general field of points received on dependence of the P o = f ( W B) in atmospheric conditions is possible.

The article is devoted to the approach to geothermal zonality. The results of geothermal studies of oil and gas bearing deposits in the northern territory of Novosibirsk region and adjacent areas are presented. Geothermal zoning was carried out, and the major geothermal anomalies were determined. The features of the geothermal zonality of Mesozoic sediments in the region under investigation are first of all defined by the material composition of the Paleozoic basement, the structural arrangement, and the warming effect of ground water during its crossflows from deeper lying horizons. Formation temperatures get leveled within the boundaries of Aptian-Albian-Cenomanian sediments, and no anomalies are distinguished. The highest geothermal gradients sup to 3,6-4,6 °C/100 m and correspond to the edge zones of the development of intrusive formations of pre-Jurassic rocks. Lower gradients sup to 2,4-3,0 °C/100 m and characterize the regions, in which Paleozoic carbonate rocks occur.

The article is devoted to the main patterns of tectonic development in the Middle Ob for the period from the tops of the middle Jurassic to the Eocene. It is shown that during this period of time in the tectonic development of the territory there were periods of quiet sedimentation and very active tectonic activity. In the history of the tectonic development of the Middle Ob four major stages are distinguished: two is quiet (the Jurassic and the Upper Cretaceous) and two are very active with large-scale multidirectional movements that led to a significant increase in the amplitudes of the structures (from the Cretaceous to the roof of the Cenomanian century).The article describes the methodology of the correlation analysis used in the study of the history of tectonic development in the territory.

The article deals with the analysis of the chemical composition of pore solutions pressed from terrigenous rocks at pressures of 5-10-15-400 atm. Particular attention is paid to sulfate and hydrocarbonate ions of relict water - pore solutions - indicators of the realization of the oil and gas potential of rocks containing dispersed organic matter of subaquatic origin at the stage of catagenesis.

The article considers the spectrum of issues of development of deposits. We give a brief description of the structure: their geological structure, information about the properties of productive rocks (reservoirs). Considerable attention is paid to the technical means and technologies for the construction of wells in the operational and geological exploration area. The article touches upon the issues of field development, aspects of safety and environment.

The article is devoted to choosing of optimal well technology for PK1-3 formation development of the the Vostochno-Messoyakhskoye oil field in the geological uncertainty condition. The formation has some features. On the one hand there are a gas cap and underlying water in the formation, which require usage of horizontal wells, but on the other hand there is a high dissection of the vertical section, which requires technologies to increase the coverage of reserves drainage in vertical direction. The different scenarios of geology were modelled: different length of geological bodies, different values of sandstone and permeability. Considered technologies are horizontal wells, multilateral wells and wells with technology «fishbone».Applying a comprehensive technical and economic assessment to propose optimal design of wells for different geological zones, to determine the optimal corridor of high-tech wells between the rows of injection wells, the optimal number of lateral well branches and the optimal design of the well with technology of «fishbone».

It is necessary to know the mechanism of contamination of bottomhole injection well zone in order to choose the right exposure method and predict the interprophylactic period of operation of this well. The article provides the essence of the proposed method. The well is being closed, and the wellhead pressure is restoring. An angular coefficient is being found by wellhead pressure build up curve, and then the graphical dependences will be plotted in the ΔP-lgt coordinates. Periodically determining the degree of contamination of bottomhole injection wells zones, we can restore their purity by timely flushing and drainage. If these works don’t contribute to cleaning, hydroimpulse treatment should be carried out. The suggested technique for determining the contamination of the bottomhole injection wells zone will allow to determine the true reason for the decrease in injectivity and to correctly outline measures to increase or stabilize the absorptive capacity of the injection well.

The comparison of isotope composition of carbon and sulfur in various oils, oil fractions, individual hydrocarbons including methane, organic substance, and other natural systems has shown that oil can be formed due to transformations of the deep abiogenic fluids containing light hydrocarbons and sulfur.

The article describes technical problems that affect the durability of the seals during operation of pumping units. The advantages and disadvantages in the operation of end and packing seals are indicated. It is shown that usage of end seals is economically justified, because it increases the turnaround cycle, provides security requirements, and allows the pumps to be provided with an automation, blocking and protection system. The author proposes a variant of the modernization of end seals to increase service life, shows changes in design.

Perfection of technologies for preparation of soil bases of storage tanks oil is an urgent task, the solution of which will allow simultaneously with ensuring the required operational reliability of the ground base to reduce material and time costs for its training. In the course of laboratory studies, the nature of wetting of the sandy soil layer specified amount of water. The obtained data made it possible to develop a mathematical model of moistening layer of sandy soil. The estimated accuracy of the mathematical model of ground wetting reservoir for oil storage showed satisfactory convergence of laboratory and theoretical results.

The article considers the development of a separate service for drilling in oil producing enterprises. A description of new scientific approaches and experience in solving practical problem is presented the development of the model as an applied tool to support the adoption of managerial decisions in the area of optimizing quantitative and qualitative composition of customer’s services. The application of self-norming, assessment of qualification level, modern intellectual technologies of complex estimation and ways of representation of results of calculations is substantiated.

The article describes the experience of usage cognitive technologies in the process of implementing the Federal State Educational Standard of the Third Generation. This experience is based on the development and application in the educational cognitive information system as a kind of program for computers. It contains the algorithms and techniques, which are used in the production when creating project documents for oil and gas fields in Russia. This computer program is part of the electronic educational environment of the university and can be used both for educational purposes, for forming professional competencies of students and in the actual production.