Abstract
The formation of a crater by the abrupt and catastrophic rupture of a high-pressure pipeline can be highly relevant, especially when the crater uncovers other pipelines, which could undergo a domino effect with a significant increase of the consequences on people or on the environment. However, this scenario has been only partially studied in the literature. To assess the influence of the pipeline parameters on the dimensions of the resulting crater, a statistical analysis of accidental ruptures of buried natural gas pipelines that have involved the formation of a crater was carried out. Mathematical expressions are proposed to describe the proportionality relationships found, which can be very useful to support adequate separation distances in the design and construction of parallel corridors of pipelines after appropriate escalating effects are considered. Finally, detailed event trees were developed to calculate the probability of occurrence of the final outcomes, as well as the identified domino sequences, based on a qualitative and quantitative analysis of the data. The study of these accident scenarios, based on actual cases, represents a useful and needed advance in risk analysis of natural gas transportation through pipelines.
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Document information
Published on 01/01/2019
Volume 2019, 2019
DOI: 10.1016/j.jlp.2019.01.011
Licence: Other
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Keywords
:Enginyeria química [Àrees temàtiques de la UPC] • Buried pipeline • Canonades -- Fractura • Control and Systems Engineering • Crater formation • Domino effect • Energy Engineering and Power Technology • Food Science • Gas natural -- Transport • Gasoductes -- Avaluació del risc • General Chemical Engineering • Industrial and Manufacturing Engineering • Management Science and Operations Research • Natural gas • Natural gas -- Trasnport • Natural gas pipelines -- Risk assessment
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