Forecasting potential risks of leakage on gas pipelines

Zapukhlyak, V.; Grudz, V. Ya.; Poberezhny, L.; Drin, N.; Stasyuk, Rоman

doi:10.33108/visnyk_tntu2019.04.032

Cited by 2 publications

(3 citation statements)

References 2 publications

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“…Існує багато математичних методів розрахунку втрат газу в газотранспортних системах. Розглянемо лише деякі з них [7].…”

Section: викладення основного матеріалуunclassified

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Analysis of the Prospects of Application of Natural Gas Leak Detection Methods to Increase the Efficiency of Atmospheric Air Monitoring at HTS Facilities

Palieieva

2024

CCTE

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The activities of the oil and gas industry enterprises, in particular the objects of gas transportation systems (GTS), are accompanied by a significant anthropogenic impact on the environment. The atmospheric air itself is significantly affected, since many technological processes are accompanied by emissions of natural gas (organized, unorganized and emergency) and, as a result, a significant amount of volatile substances, many of which are dangerous and harmful, enter the atmosphere. There is a wide range of methods for detecting gas leaks from elements of gas transportation systems. Ways of classifying methods directly depend on the features that form the basis of their distribution. However, the insufficient definition of the classification features, their "one-sidedness" do not allow a full assessment of the shortcomings and advantages of certain methods and means, and, therefore, the possibility of their application to increase the effectiveness of atmospheric air monitoring at HTS facilities in order to ensure environmental safety. The main tasks solved in this article are the formulation of the optimal classification of existing methods of controlling the presence of gas leaks in terms of applicability in environmental monitoring systems of atmospheric air; analysis of their advantages and disadvantages; substantiation of the expediency and perspective of using these means and methods to ensure constant monitoring of the state of atmospheric air at GTS facilities. A classification of methods and means of control is proposed based on the level of application of technical means, according to which all methods are divided into organoleptic, hardware and computational (software-mathematical). According to the results of the analysis of the data of the groups, it was determined that, from the point of view of the prospects of application in the atmospheric air quality monitoring systems at the GTS facilities, hardware means, namely gas analyzers, have the most advantages.

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Section: викладення основного матеріалуunclassified

“…Метод виявлення витоків по аналізу профіля тиску оснований на моделюванні розподілу тиску вздовж трубопроводу і статистичному аналізі цього розподілу [7] [5].…”

Section: викладення основного матеріалуunclassified

Analysis of the Prospects of Application of Natural Gas Leak Detection Methods to Increase the Efficiency of Atmospheric Air Monitoring at HTS Facilities

Palieieva

2024

CCTE

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“…Аналітична модель нестаціонарного процесу базується на рівняннях руху та нерозривності, які мають вигляд [8]: Для визначення тиску як функції лінійної координати і часу використаємо перше рівняння системи (1). Після нескладних перетворень отримаємо…”

Section: висвітлення основного матеріалу дослідженняunclassified

Modification of Mode Parameters of Main Oil Pipelines under the Condition of Depressurizing

Bolonnyi¹

2020

PDOGF

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The characteristics of Ukrainian oil transportation system are presented; the emergency risks of Ukrainian oil pipelines are established. The analysis of the accident rate of oil pipeline transportation in Ukraine, Russia and the USA was carried out. The processes of initiation and progression of man-made emergencies in Ukraine during the oil pipelines operation are considered. The article presents the technique of specifying the incidental pressure in a pipeline, depending on the amount of oil loss at the site of oil leaks. It gives an opportunity to calculate the amount of oil loss and to evaluate the environmental hazards caused by oil pipeline transportation emergencies. It is based on the equations of motion and continuity of fluid flow. This technique makes it possible to calculate the pressure at each point of a pipeline in transient mode caused by changes in pressure at the beginning and at the end of the section and the emergence of concentrated oil offtake. It also gives an opportunity to monitor the change in mode parameters along the pipeline under conditions of pipeline depressurization. Maximum discrepancy in calculation results becomes typical when the range of fluctuations is maximal. It has been established that discrepancy increases when the distance from the source of perturbation becomes bigger. The discrepancy in calculation results is practically non-existent for the pressure fluctuations at the point of perturbation start (). Based on the results of calculations, the author constructs a graph of pressure change of the oscillatory process in the oil pipeline caused by the jump in the pressure at the beginning and at the end of the section, and the presence of probable leaks at the certain point of the pipeline route. The line section of the main oil pipelines is the most dangerous part since all emergencies are associated with emergency processes of different intensity in the form of outflow of oil into the environment, and are dangerous because of system breakdowns can take place. Both the process of the generation of the oil pollution zone and its time period depend on the amount of oil leakage, its intensity and depth of the oil pipeline.

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Forecasting potential risks of leakage on gas pipelines

Cited by 2 publications

References 2 publications

Analysis of the Prospects of Application of Natural Gas Leak Detection Methods to Increase the Efficiency of Atmospheric Air Monitoring at HTS Facilities

Analysis of the Prospects of Application of Natural Gas Leak Detection Methods to Increase the Efficiency of Atmospheric Air Monitoring at HTS Facilities

Modification of Mode Parameters of Main Oil Pipelines under the Condition of Depressurizing

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