Consequences of a 12-mm diameter high pressure gas release on a buried pipeline. Experimental setup and results

Houssin-Agbomson, Deborah; Blanchetière, Gaël; McCollum, D. J.; Saint-Macary, Claire; Mendes, Renato F; Jamois, Didier; Barbalat, M.; Foissac, Arnaud; Lubet, Thomas

doi:10.1016/j.jlp.2018.03.016

Cited by 22 publications

(4 citation statements)

References 2 publications

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“…A methodology has been proposed for the analysis of consequences in incidents related to oil and gas pipelines, 8 while a numerical method for simulating natural gas leakage has been created 9 . Experimental research has been made to analyze pipeline failures that present quantitative data related to catastrophic pipeline failures 10–12 …”

Section: Introductionmentioning

confidence: 99%

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Change of location class in gas pipelines from a regulatory perspective

Silva,

de Oliveira,

da Cunha

2024

Process Safety Progress

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Location class is an essential factor in the gas pipeline project because it considers factors such as population density and the number of buildings along the gas pipeline route. As these parameters change, the pipeline operator needs to review the location class, also requiring a possible assessment of changes in allowable pipeline operating pressure. Brazilian regulations related to the safety of pipeline processes are defined in the Onshore Pipeline Technical Regulation and this document indicates the application of the requirements of the ASME B31.8 standard for changing the location class. Although there are preventive and mitigating measures in the ASME B31.8 standard, they are seen as overly conservative. Other international standards have different concepts, with evaluation criteria based on risk analysis. The issue has also been a challenge for other countries, which are reviewing their regulations and developing guidelines for gas pipeline operators. The main objective of this study is to carry out a survey of international practices related to changing the location class of gas pipelines and to propose a criterion based on the best international practices based on risk management, allowing a more comprehensive view of this subject.

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Section: Introductionmentioning

confidence: 99%

“…9 Experimental research has been made to analyze pipeline failures that present quantitative data related to catastrophic pipeline failures. [10][11][12] Different legal approaches care about the regulation of process safety. There are two main philosophies of process safety, prescriptive and performance-based.…”

mentioning

confidence: 99%

Change of location class in gas pipelines from a regulatory perspective

Silva,

de Oliveira,

da Cunha

2024

Process Safety Progress

View full text Add to dashboard Cite

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“…Bonnaud et al used experimental methods to study the effects of leakage diameter, pipeline operating pressure, pipeline buried depth, and soil type on the leakage and diffusion results of small holes in buried natural gas pipelines and emphasized the formation of ground cavities and other new phenomena . Houssin-Agbomson et al conducted an experimental study on the accidental leakage of high-pressure gas transmission pipeline with a leakage diameter of 12 mm and accurately evaluated the leakage risk by changing the effects of gas properties, initial gas pressure, and soil type on the diffusion of gas in the soil . Xie et al analyzed the gas diffusion in soil by experimental method and measured the change of methane volume fraction with time .…”

Section: Introductionmentioning

confidence: 99%

“…21 Houssin-Agbomson et al conducted an experimental study on the accidental leakage of high-pressure gas transmission pipeline with a leakage diameter of 12 mm and accurately evaluated the leakage risk by changing the effects of gas properties, initial gas pressure, and soil type on the diffusion of gas in the soil. 22 Xie et al analyzed the gas diffusion in soil by experimental method and measured the change of methane volume fraction with time. 23 Yan et al developed a full-scale experimental system, which divided the experimental process into release stage and dissipation stage, to study the change of methane concentration in soil under different leakage rate and leakage direction of low-pressure pipeline.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Prediction of Methane Invasion Distance Considering Real Ground Boundary

Liu

Chen

et al. 2021

ACS Omega

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Natural gas has become a global energy consumption hotspot because of its large reserves and clean combustion. Due to soil corrosion, construction damage, and natural disasters, leakage accidents of buried natural gas pipelines often occur. In this paper, the steady simulation method was used to study the methane invasion limit state (MILS) and the methane invasion limit distance (MILD) under the conditions of hardened surface ground (HSG), unhardened surface ground (UHSG), and semihardened surface ground (SHSG), and the transient simulation of methane invasion distance (MID) under the condition of HSG with the largest MILD was carried out. The results showed that regardless of ground conditions, with the increase of leakage time, the diffusion range of methane in soil will not increase all the time, and there was a limit state (MILS). The distribution range and concentration of methane in the soil under HSG condition were the largest, followed by the SHSG condition, and the UHSG condition was the smallest. When the ground condition changed from UHSG to HSG, the MILD increased from 3.41 to 9.32 m. The HSG condition will increase the MILD and the range of dangerous areas. The buried depth of the pipeline had a serious impact on the MILD. When the buried depth of the pipeline increased from 0.3 to 1.5 m, the MILD increased from 1.75 to 3.49 m under the condition of UHSG and exceeded 10 m under the condition of HSG. The average error of the MID prediction model was 2.37% under the condition of HSG, which can accurately predict the leakage of buried pipeline. The MID provides a reference for the layout of urban underground gas leakage monitoring points. The MILD can provide guidance for the safe distance between natural gas pipeline and structures in the design code of natural gas pipeline.

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Leakage and diffusion behavior of a buried pipeline of hydrogen-blended natural gas

Zhu

Zhang

et al. 2023

International Journal of Hydrogen Energy

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Consequences of a 12-mm diameter high pressure gas release on a buried pipeline. Experimental setup and results

Cited by 22 publications

References 2 publications

Change of location class in gas pipelines from a regulatory perspective

Change of location class in gas pipelines from a regulatory perspective

Analysis and Prediction of Methane Invasion Distance Considering Real Ground Boundary

Leakage and diffusion behavior of a buried pipeline of hydrogen-blended natural gas

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