Features of mathematical modeling of natural gas production and transport systems in the Russia’s arctic zone
The necessity of accounting for real gas properties, thermal interaction with permafrost rocks and the possibility of formation (dissociation) of gas hydrates in these objects for adequate description of the operation of gas wells and main gas pipelines in the regions of the Far North by appropriate...
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Saint-Petersburg Mining University
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ftdoajarticles:oai:doaj.org/article:d407d6efe52e4d69afbbb11e053ee88b 2023-05-15T15:14:33+02:00 Features of mathematical modeling of natural gas production and transport systems in the Russia’s arctic zone E. A. Bondarev I. I. Rozhin K. K. Argunova 2017-12-01T00:00:00Z https://doi.org/10.25515/pmi.2017.6.705 https://doaj.org/article/d407d6efe52e4d69afbbb11e053ee88b EN RU eng rus Saint-Petersburg Mining University https://pmi.spmi.ru/index.php/pmi/article/view/11498?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 doi:10.25515/pmi.2017.6.705 https://doaj.org/article/d407d6efe52e4d69afbbb11e053ee88b Записки Горного института, Vol 228, Pp 705-705 (2017) Mining engineering. Metallurgy TN1-997 article 2017 ftdoajarticles https://doi.org/10.25515/pmi.2017.6.705 2023-01-22T01:30:22Z The necessity of accounting for real gas properties, thermal interaction with permafrost rocks and the possibility of formation (dissociation) of gas hydrates in these objects for adequate description of the operation of gas wells and main gas pipelines in the regions of the Far North by appropriate mathematical models is shown. Mathematical models that take into account the non-isothermal gas flow within the framework of pipe hydraulics, the change of the area of tube cross-section due to the formation of hydrates and the dependence of the heat transfer coefficient between gas and hydrate layer on the varying flow area over time are proposed. The corresponding conjugate problem of heat exchange between the imperfect gas in the well and the environment (rocks) is reduced to solving differential equations describing the non-isothermal flow of gas in the pipes and the heat transfer equations in rocks with the corresponding conjugation conditions. In the quasi-stationary mathematical model of hydrate formation (dissociation), the dependence of the gas-hydrate transition temperature on the pressure of gas is taken into account. Established that the formation of hydrates in wells, even at low reservoir temperatures and a thick layer of permafrost, takes a fairly long period of time, which allows to quickly prevent the creation of emergency situations in gas supply systems. Some decisions taken in the design of the first section of the main gas pipeline «Power of Siberia» have been analyzed by methods of mathematical modeling. In particular, it is shown that if the gas is not dried sufficiently, the outlet pressure may drop below the allowable limit in about 6-7 hours. At the same time, for completely dry gas, it is possible to reduce the cost of thermal insulation of the pipeline at least two fold. Article in Journal/Newspaper Arctic permafrost Siberia Directory of Open Access Journals: DOAJ Articles Arctic |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Russian |
topic |
Mining engineering. Metallurgy TN1-997 |
spellingShingle |
Mining engineering. Metallurgy TN1-997 E. A. Bondarev I. I. Rozhin K. K. Argunova Features of mathematical modeling of natural gas production and transport systems in the Russia’s arctic zone |
topic_facet |
Mining engineering. Metallurgy TN1-997 |
description |
The necessity of accounting for real gas properties, thermal interaction with permafrost rocks and the possibility of formation (dissociation) of gas hydrates in these objects for adequate description of the operation of gas wells and main gas pipelines in the regions of the Far North by appropriate mathematical models is shown. Mathematical models that take into account the non-isothermal gas flow within the framework of pipe hydraulics, the change of the area of tube cross-section due to the formation of hydrates and the dependence of the heat transfer coefficient between gas and hydrate layer on the varying flow area over time are proposed. The corresponding conjugate problem of heat exchange between the imperfect gas in the well and the environment (rocks) is reduced to solving differential equations describing the non-isothermal flow of gas in the pipes and the heat transfer equations in rocks with the corresponding conjugation conditions. In the quasi-stationary mathematical model of hydrate formation (dissociation), the dependence of the gas-hydrate transition temperature on the pressure of gas is taken into account. Established that the formation of hydrates in wells, even at low reservoir temperatures and a thick layer of permafrost, takes a fairly long period of time, which allows to quickly prevent the creation of emergency situations in gas supply systems. Some decisions taken in the design of the first section of the main gas pipeline «Power of Siberia» have been analyzed by methods of mathematical modeling. In particular, it is shown that if the gas is not dried sufficiently, the outlet pressure may drop below the allowable limit in about 6-7 hours. At the same time, for completely dry gas, it is possible to reduce the cost of thermal insulation of the pipeline at least two fold. |
format |
Article in Journal/Newspaper |
author |
E. A. Bondarev I. I. Rozhin K. K. Argunova |
author_facet |
E. A. Bondarev I. I. Rozhin K. K. Argunova |
author_sort |
E. A. Bondarev |
title |
Features of mathematical modeling of natural gas production and transport systems in the Russia’s arctic zone |
title_short |
Features of mathematical modeling of natural gas production and transport systems in the Russia’s arctic zone |
title_full |
Features of mathematical modeling of natural gas production and transport systems in the Russia’s arctic zone |
title_fullStr |
Features of mathematical modeling of natural gas production and transport systems in the Russia’s arctic zone |
title_full_unstemmed |
Features of mathematical modeling of natural gas production and transport systems in the Russia’s arctic zone |
title_sort |
features of mathematical modeling of natural gas production and transport systems in the russia’s arctic zone |
publisher |
Saint-Petersburg Mining University |
publishDate |
2017 |
url |
https://doi.org/10.25515/pmi.2017.6.705 https://doaj.org/article/d407d6efe52e4d69afbbb11e053ee88b |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic permafrost Siberia |
genre_facet |
Arctic permafrost Siberia |
op_source |
Записки Горного института, Vol 228, Pp 705-705 (2017) |
op_relation |
https://pmi.spmi.ru/index.php/pmi/article/view/11498?setLocale=en_US https://doaj.org/toc/2411-3336 https://doaj.org/toc/2541-9404 2411-3336 2541-9404 doi:10.25515/pmi.2017.6.705 https://doaj.org/article/d407d6efe52e4d69afbbb11e053ee88b |
op_doi |
https://doi.org/10.25515/pmi.2017.6.705 |
_version_ |
1766344996692164608 |