title: Identification of low and medium intensity gas leakage location in medium and ultra-high pressure gas pipelines
metadata.name: dc.contributor.author
metadata.value: Kurbatova, Galina I.
metadata.lang: -
metadata.name: dc.contributor.author
metadata.value: Klemeshev, Vladimir A.
metadata.lang: -
metadata.name: dc.date.accessioned
metadata.value: 2023-08-22T17:16:10Z
metadata.lang: -
metadata.name: dc.date.available
metadata.value: 2023-08-22T17:16:10Z
metadata.lang: -
metadata.name: dc.date.issued
metadata.value: 2023-06
metadata.lang: -
metadata.name: dc.identifier.citation
metadata.value: Kurbatova G. I., Klemeshev V. A. Identification of low and medium intensity gas leakage location in medium and ultra-high pressure gas pipelines. Vestnik of Saint Petersburg University. Applied Mathematics. Computer Science. Control Processes, 2023, vol. 19, iss. 2, pp. 218–232.
metadata.lang: en_GB
metadata.name: dc.identifier.other
metadata.value: https://doi.org/10.21638/11701/spbu10.2023.208
metadata.lang: -
metadata.name: dc.identifier.uri
metadata.value: http://hdl.handle.net/11701/43830
metadata.lang: -
metadata.name: dc.description.abstract
metadata.value: An efficient method for calculating the location of stationary gas leakage in wells and gas pipelines with medium and ultra-high pressures is presented. An algorithm for constructing the dependence of the compressibility factor of the gas mixture with a predominance of methane in the region of ultra-high pressures based on experimental data of pressure and temperature is proposed. The algorithm for calculating the leakage location is based on the Bellman method of quasi-linearization of nonlinear problems, with an additional hypothesis of the linear dependence of pressure and temperature on the leakage location coordinates used at each iteration. The issue of selecting the initial approximation is considered, and the advantage of calculating the initial approximation using a simplified non-isothermal flow model is justified. Examples of solving practical problems of high interest are given, and the high accuracy of calculating the gas leakage location using the proposed algorithm in gas pipelines with medium pressures (around 9 MPa) and ultra-high pressures (around 20 MPa) for small and medium gas leaks is demonstrated.
metadata.lang: en_GB
metadata.name: dc.language.iso
metadata.value: ru
metadata.lang: en_GB
metadata.name: dc.publisher
metadata.value: St Petersburg State University
metadata.lang: en_GB
metadata.name: dc.relation.ispartofseries
metadata.value: Vestnik of St Petersburg University. Applied Mathematics. Computer Science. Control Processes;Volume 19; Issue 2
metadata.lang: -
metadata.name: dc.subject
metadata.value: leakage location
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: gas pipelines
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: ultra-high pressures
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: equations of state
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: compressibility coefficient
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: mathematical models
metadata.lang: en_GB
metadata.name: dc.subject
metadata.value: parameter identification method
metadata.lang: en_GB
metadata.name: dc.title
metadata.value: Identification of low and medium intensity gas leakage location in medium and ultra-high pressure gas pipelines
metadata.lang: en_GB
metadata.name: dc.type
metadata.value: Article
metadata.lang: en_GB
resources.filename: 08.pdf
resources.url: https://dspace.spbu.ru/bitstream/11701/43830/1/08.pdf
resources.format: Adobe PDF
resources.size: 453,12 kB