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Oleg M. Ermilov
Oleg M. Ermilov
Deputy Chief Engineer for Science, Ph.D., Dr.Sci.
OOO Gazprom Dobycha Nadym, Nadym
Deputy Chief Engineer for Science, Ph.D., Dr.Sci.
OOO Gazprom Dobycha Nadym, Nadym
Nadym
Russia

Articles

Geotechnical Engineering and Engineering Geology
  • Date submitted
    2022-09-05
  • Date accepted
    2023-09-20
  • Online publication date
    2023-12-06
  • Date published
    2024-04-25

Modeling the efficiency of seasonal cooling devices when changing the statistical distribution of weather conditions

Article preview

The climatic factor of warming, which is evidenced by a significant number of scientists and research teams in Russia and the world, has a significant impact on the cryogenic state of permafrost soil, the preservation of which is one of the most common principles of construction in the North. The influence of projected climatic changes in planning up to 2050 on the efficiency of seasonal cooling devices, the principle of operation of which is based on seasonal soil freezing, is considered. The conducted modeling has shown that in a situation of stable climate, the preservation of the cryogenic state of permafrost soil is realized without the use of additional measures. With warming with a trend of 0.1 °C per year, seasonal cooling devices do not ensure the preservation of the current level of the cryogenic state of the soil and additional measures are required to increase their efficiency in the summer. In the case of more extreme warming with a rate of 0.25 °C per year, the modeling results show that seasonal cooling devices do not significantly affect the rate of soil thawing and the solution to the problem should be its complete replacement with systems with year-round action.

How to cite: Ermilov O.M., Dzhalyabov A.A., Vasilev G.G., Leonovich I.A. Modeling the efficiency of seasonal cooling devices when changing the statistical distribution of weather conditions // Journal of Mining Institute. 2024. Vol. 266. p. 272-282. EDN UZQOVK
Oil and gas
  • Date submitted
    2019-03-18
  • Date accepted
    2019-04-26
  • Date published
    2019-08-25

Spatial Models Developed Using Laser Scanning at Gas Condensate Fields in the Northern Construction-Climatic Zone

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Wide exploration and industrial exploitation of hydrocarbon fields in Yamal Peninsula pose in front of construction and mining companies critical problems of efficient construction at constantly evolving fields taking into account climatic and geocryological conditions of their location. Yamal Peninsula is characterized by unstable soils, the mobility of which has a substantial impact on the changes in spatial arrangement of field facilities, not only in the direct process of construction, but also during their scale-up and equipment overhaul. The paper examines implementation of 3D spatial arrangement modelling of industrial facilities into the process of construction and installation works at hydrocarbon fields in the northern construction-climatic zone. The purpose of implementing this method combined with 3D spatial modelling of equipment connections lies in reliability and safety enhancement of the facilities throughout their entire lifespan. Authors analyze statement and solution of the problem associated with alignment and installation of prefabricated equipment and pipelines, taking into account advanced technologies of 3D design and modelling. The study examines a 3D spatial model with the elements of equipment connection geometry; the model is related to existing production facilities at the field. Authors perform an analysis and in mathematical terms formulate the problem of optimal spatial arrangement for such models. The paper focuses on typical deviations, occurring in the installation process of constructions and connection facilities, their spatial arrangement is modelled. Possible solutions are offered, as well as an algorithm of their implementation at an operating field.

How to cite: Menshikov S.N., Dzhaljabov A.A., Vasiliev G.G., Leonovich I.A., Ermilov O.M. Spatial Models Developed Using Laser Scanning at Gas Condensate Fields in the Northern Construction-Climatic Zone // Journal of Mining Institute. 2019. Vol. 238. p. 430. DOI: 10.31897/PMI.2019.4.430