Guidelines for the use of structural reliability and risk based techniques to justify the operation of onshore pipelines at design factors greater than 0.72

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Guidelines for the use of structural reliability and risk based techniques to justify the operation of onshore pipelines at design factors greater than 0.72

Francis, A. / Espiner, R.J. / Edwards, A.M.

Structural reliability and risk based techniques have recently been used to demonstrate safe operation of high-pressure pipelines at design factors greater than 0.72. In particular several pipelines are now operating on the Transco National Transmission System, in the UK, at design factors of 0.78 owing to the use of the techniques. The overall structural reliability and risk bsed approach for justifying safe operation of pipelines at these stress levels is thus now established. However, in order to establish cost effective and viable widespread use of the technique, formal guidelines are necessary which will allow analyses to be performed with minimal requirements for regulator liaison meetings, external audits and extensive reporting. Structured and comprehensive guidelines, which have recently been constructed based on extensive analytical consideration of the underlying issues, are presented in this paper. The guidelines enable a consistent approach to the use of structural reliability and risk based techniques for the purpose of design and assessment on onshore pipelines to be adopted. This will result in consistent levels of safety. The guidelines also provide the industry with a detailed methodology and clear definitions of terminology. This will enable pipeline operating companies to take immediate advantage of the cost saving benefits obtaining using the structural reliability and risk based techniques.

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Title :

Guidelines for the use of structural reliability and risk based techniques to justify the operation of onshore pipelines at design factors greater than 0.72

Additional title:

Richtlinien für einen sicheren und verlässlichen Pipelinebetrieb an Land bei einem Designfaktor größer als 0.72

Contributors:

Francis, A. (author) / Espiner, R.J. (author) / Edwards, A.M. (author)

Published in:

World Gas Conference, International Gas Union, 21

Publication date :

2000

Size :

13 Seiten, 3 Bilder, 10 Quellen

Type of media :

Conference paper