The oil industry of the former Soviet Union (FSU) has extensive experience in enhanced oil recovery (EOR) methods. Variety of conditions, both geological and geographical, require systematic analysis of the applicability of EOR methods under different reservoir conditions. Fuzzy logic comparative analysis enabled the identification of the main reservoir/fluid parameters that have an impact on the success of EOR methods. Analysis was done on EOR methods such as steam injection, polymer flooding, surfactant flooding, group of the gas injection methods, and CO2-flooding. The data base created by the authors includes more than 800 EOR projects with a substantial part of them carried in the FSU. Several examples of the EOR feasibility study are discussed in the paper. The approach described in this paper allows the selection of secondary/tertiary oil recovery methods which are most promising for the given geological conditions. This reduces the number of diverse field performances and, hence, shortens the risk and uncertainty in the decision making.
The objective of this article is an estimation of the oil and gas potential of the north of the Siberian platform and adjacent shelf. The Siberian platform is characterized by a large concentration of oil and gas resources in the southern and central parts of the platform. The main oil and gas province of the Siberian Platform is the Leno-Tungus oil and gas province. The oil- bearing strata in the Lena-Tungus oil and gas province are confined to the Riphean, Vendian, Lower-Middle Cambrian deposits, in which large oil and gas fields are discovered. In modern contours the Siberian platform in the north and north-west is fringed by the Yenisei-Khatanga regional trough. In the east, the Yenisei-Khatanga regional trough is connected with the Anabar- Lena trough, framing the north-eastern part of the Siberian platform. Analysis of the available geological and geophysical materials shows a fairly high potential of the Anabar-Lena and Yenisei-Khatanga troughs for the discovery of large hydrocarbon fields. The basic understanding of the geologic-tectonic structure and petroleum potential of the northern part of the Siberian Platform and the adjacent shelf of the Arctic zone are currently based on seismic data by the method of the common depth point (CDP), tied to the existing deep search and parametric wells. Representations of the deep structure and oil and gas potential of specific areas, the allocation of targeted promising oil and gas horizons can change dramatically as the depth of seismic acquisition of the method of the common depth point increases and the software for processing and interpreting seismic data is improved. The localized oil and gas resources of the north of the Siberian platform and adjacent shelf are 41017,3, subsequently, 27582,3 - onshore and offshore - 13435 MMT (million tons) of oil equivalent.
This article examines the issues of digital modernization of the oil and gas complex of Russia, the evolution of digital oil and gas technologies. The main results of research work in the field of creating digital technologies for preventing complications and accidents, transferring drilling data in blockchain format, monitoring the state of pipelines using magnetic tomography are briefly outlined. The digital modernization strategy is aimed at large-scale digitalization of oil and gas production facilities and lays a reliable basis for the growth of capital productivity of fields in the long term. The approach is based on improving the quality of management, analyzing the effectiveness of control actions when using an integrated model or a digital twin of the field. The integrated application of digital technologies for effective management is the basis for cost optimization, ensuring the transition to robotic control, and increasing the capital productivity ratio of key gas assets. These solutions are especially effective in regions with difficult natural and climatic conditions or undeveloped infrastructure, Arctic fields. The proposed integrated approach makes it possible to extend the periods of profitable exploitation of gas fields at the stage of declining production and complicated production conditions. By the end of 2025, the number of digital fields using technologies for processing Big Geo Data will exceed 10% of the total number of oil and gas fields in Russia.
Задача построения цифровой нефтегазовой экономики в РФ стоит не только перед государством, бизнесом, обществом, но и является вызовом для научного сообщества и высшей школы. Модель цифровой нефтегазовой экономики основана на потреблении интеллектуальных ресурсов и цифровой добыче углеводородов [1][2][3][4][5][6]. Природа цифровой
Аннотация. Статья посвящена рассмотрению возможности применения метода внутрипластового горения при освоении нефтяного пояса Ориноко (Венесуэла) как эффективного метода разработки месторождений с высоковязкой нефтью и битумами. С начала освоения нефтяного пояса Ориноко технология внутрипластового горения рассматривается как ключевая технология разработки и эксплуатации залежей. Представлены критерии применимости технологии внутрипластового горения Ключевые слова: тяжелая нефть, битумы, цифровая модернизация нефтегазового производства, добыча нефти, запасы нефти, внутрипластовое горение, термическая нефтеотдача.
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