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Date submitted2022-09-15
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Date accepted2022-11-17
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Date published2022-12-29
Comprehensive assessment of hydraulic fracturing technology efficiency for well construction during hydrocarbon production
The oil and gas industry has been an integral and fundamental sector of the Russian economy for the past few years. The main problems of this industry have traditionally been the deteriorating structure of oil reserves; depreciation of main assets; slowdown and decline in oil production. Recently these have been complicated by a number of new negative trends related to underinvestment, limited financial resources, deteriorating access to new equipment and technologies. The task of the research is to make a comprehensive assessment of hydraulic fracturing technology during well construction and to increase the recovery and intensification of hydrocarbons production. In this research, modeling techniques were used to assess the productivity of each fracture. Geophysical methods (seismic survey) were used to determine the geomechanical properties of the formation. Comprehensive assessment of hydraulic fracturing technology during well construction was carried out, which allowed to increase vertical permeability and unite disparate parts of the reservoir in practice, and to determine the development efficiency of the hydrocarbon field.
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Date submitted2022-04-18
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Date accepted2022-06-15
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Date published2022-07-26
Results and prospects of geological mapping of the Arctic shelf of Russia
- Authors:
- Evgeny A. Gusev
The results of compiling the sets of the State Geological Map at a scale of 1:1,000,000 for the Arctic continental shelf of Russia are analyzed. Results are summed up, and the main problems of geological mapping are outlined. The results of geological and geophysical studies of the Arctic Ocean are of great importance for deciphering the geological evolution. The Arctic shelf is the widest shelf in the world, while the spreading ocean basin is one of the narrowest and is characterized by anomalous structural features. The main problems of geological mapping include identification the sedimentary cover/folded basement boundary, interpretation the geodynamic evolution of the shelf and adjacent ocean, determining the rates of sedimentation and stratigraphic subdivision of the sedimentary cover due to a small number of key boreholes. It is promising to further study problem areas with unclear features of geological structure as well as small-scale mapping in areas of industrial development on the Arctic continental shelf.
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Date submitted2020-05-17
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Date accepted2020-10-05
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Date published2020-11-24
Geological structure of the northern part of the Kara Shelf near the Severnaya Zemlya archipelago according to recent studies
Until recently, the North of the Kara Shelf was completely unexplored by seismic methods. Seismic and seismo-acoustic data that have appeared in recent years have made it possible to decipher features of the regional geological structure. This study solves the urgent problem of determining the prospects for the oil and gas potential of the North Kara sedimentary basin. The relevance of the research is associated with determining the prospects of the oil and gas potential of the North Kara sedimentary basin. The aim of the study is to clarify the age of the reflecting horizons using data on the geology of the island, as well as to determine the tectonic position of the sedimentary cover and basement structures in the north of the Kara shelf. The sedimentary cover is divided into three structural levels: Cambrian-Devonian, Middle Carboniferous-Cretaceous, Miocene-Quarter. The Cambrian-Devonian complex fills the deep troughs of the North Kara shelf. The most noticeable discontinuity is the base of Carboniferous-Permian rocks, lying on the eroded surface of folded Silurian-Devonian seismic complexes. The blanket-like plate part of the cover is composed of thin Carbon-Quarter complexes. The authors came to the conclusion that the fold structures of the Taimyr-Severozemelskiy fold belt gradually degenerate towards the Kara sedimentary basin and towards the continental slope of the Eurasian basin of the Arctic Ocean. A chain of narrow uplifts within the seabed relief, which correspond to narrow anticlines is traced to the West of the Severnaya Zemlya islands. Paleozoic rocks have subhorizontal bedding further to the West, within the Kara shelf. Mesozoic folding in the North of the Kara Sea is expressed exclusively in a weak activation of movements along faults. At the neotectonic stage, the shelf near Severnaya Zemlya was raised and the Mesozoic complexes were eroded. The modern seismic activity of the North Zemlya shelf is associated with the ongoing formation of the continental margin.
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Date submitted2018-05-09
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Date accepted2018-06-30
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Date published2018-10-24
Scientific and methodical approaches to increase prospecting efficiency of the russian arctic shelf state geological mapping
- Authors:
- A. S. Egorov
- I. Yu. Vinokurov
- A. N. Telegin
A rationale for the set of theoretical and methodological techniques of mapping and deep modeling in the Russian Arctic shelf and adjacent sedimentary basins in continental Russia is based on the materials for the Barents and Kara Seas region. This article provides the factual basis of the research and shows how to apply zonal-block model of the crust and generalized models of geodynamic settings in terms of the different geophysical data inconsistency. The necessity and approach for global and regional paleo-reconstructions are also discussed. It is shown that localization of the principal structural and compositional units of the lithosphere being a consequence of geodynamic processes at the boundaries of lithospheric plates, form at the basis of sedimentary cover and crystalline basement layered maps as well as cross-sections of the continental crust. The identified parameters of the deep structure and milestones of the regional tectonic history open new opportunities to explore the regularities of ore deposits distribution. The shown example of the forecast and metallogeny problems solution within Western Siberia and Khatanga-Vilyui petroleum provinces is made using the parameters of known industrial oil and gas fields for training the pattern recognition system.
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Date submitted2015-08-11
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Date accepted2015-10-06
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Date published2016-04-22
Problems development of the offshore oil and gas fields deposits
- Authors:
- V. M. Vasiltsova
Based on the fact that the development of offshore fields that contain huge reserves of hy-drocarbons, is a key area to overcome the negative trends in the oil and gas industry. The article identifies ways to improve the organization and management of the development of the Arctic shelf from a methodological and practical point of view. Three groups of problems of increase of efficiency of interaction of oil and gas companies to governments and companies from other countries: 1) Institutional (taxation, production sharing agreements, concession regime and others.); investment (extension of the list of investment risks and methodical study of their principles); innovation (creation of a new generation of oil and gas equipment, marine oil and gas innova-tion clusters) and the ways to solve them.
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Date submitted2014-11-01
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Date accepted2015-01-25
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Date published2015-10-26
Application of the geoelectrochemical method for prospecting of oil and gas deposits in the Barents and Kara seas
- Authors:
- M. A. Kholmyanskii
- S. P. Pavlov
- O. F. Putikov
The use of the geoelectrochemical method of ion-selective electrodes for continuous recording of hydrocarbon micro-components – heavy metals – during the vessel movement to search for oil and gas deposits on the shelf is justified theoretically and experimentally. The existence of «jet» halos in the water column above the shelf oil and gas deposits is discovered experimentally and the method of geoelectrochemical ion-selective electrodes as well as the developed instrumentation for recording these halos is described. The application of a new geoelectrochemical method for prospecting in motion (without sampling) both structural and non-structural oil and gas deposits on the shelf is justified.
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Date submitted2014-11-27
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Date accepted2015-01-15
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Date published2015-10-26
Socio-economic potential of large-scale projects to develop offshore oil and gas: risks and stakeholder expectations
- Authors:
- A. E. Cherepovitsyn
The development of the Arctic shelf is a strategic long-term objective of the energy development of the Russian Federation. At the present time, resource and economic potential of offshore oil and gas development projects is huge. However, it is constrained by the complexity of developing offshore oil and gas resources due to climatic, geological and technological conditions. In addition, the current unstable situation with world oil prices is also a constraint on largescale involvement in the industrial development of offshore oil and gas resources. The aim of the research is to determine socioeconomic potential of large-scale projects to develop oil fields in the Arctic shelf of Russia. The article presents the peculiarities of developing offshore fields, which are characterized by severe climatic conditions, high environmental risks, unique technological solutions, lack of infrastructure in coastal areas. A comparative analysis of projects to develop land and shelf is performed. The regional authorities’ and businesses capability of implementing large-scale projects to develop offshore fields on economic, social and environmental criteria is identified. The positive and negative effects of socio-economic development of the territory implementing projects of hydrocarbon field development are evaluated. A schematic diagram of the socio-economic potential of hydrocarbon resources development projects reflecting the opportunities and risks of such projects from the perspective of key stakeholders is developed. A set of strategic objectives to successfully implement projects in the Arctic shelf of Russia are proposed. The findings of the research can be used by the departments of energy, industry and mineral resources in the preparation of long-term strategic development programs for the oil and gas industry.
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Date submitted2008-11-12
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Date accepted2009-01-15
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Date published2009-12-11
Social and economic approaches for the arctic shelf’s hydrocarbon field development
- Authors:
- A. M. Fadeev
- F. D. Larichkin
This article shows social and economic approaches for hydrocarbon field development taking into account foreign operating experience of natural resources. different aspects of an effective industrial policy carried out in the operated region’s oil and gas complex, with decisions taken for a wide range of social and economic problems at various stages of the field development are shown. The article also covers questions related to the interaction between state and oil and gas business and the creation of effective strategies for management of hydrocarbon resource developments.
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Date submitted2008-11-12
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Date accepted2009-01-22
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Date published2009-12-11
Reproduction of hydrocarbon resource base of the Russian continental shelf
- Authors:
- M. Y. Shkatov
- I. Y. Vinokurov
- I. B. Sergeev
In article the characteristic of resource base of hydrocarbon resources of a Russian continental shelf is given. Deposits are divided into three groups: the oil, gas and condensate. Estimations of reserves and their changes are presented. Tendencies of development of sub-sea oil and gas deposits on the basic regions are defined: to the Arctic, Far East, Caspian and Baltic.