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Title: The Application Of Structural Reliability Analysis Towards Developing Pipeline Integrity Management Programs
Author: Alan m. Edwards
Source: American Gas Association 2000
Year Published: 2000
Abstract: BG Technology Ltd, the research and consultancy business of the energy company BG Group plc has developed and implemented a major structural reliability assessment (SRA) program in the UK. This has been applied to increase operating pressure in parts of the UKs national transmission system to allow operation at higher stress levels than those currently permitted by the UK onshore pipeline design code. The methodology was used to provide assurance to both the operator and the national regulatory body that there was an insignificant reduction in safety levels associated with this increase in pressure. In addition to the uprating study, BG Technology has applied the technique to other situations including increasing asset life and validation of new design proposals. The technique has been applied successfully for customers both within and without the UK including North America. BG Technology are currently leading a major Joint Industry Project to establish formal guidelines for the application of the approach. In parallel with this BG Technology is re-configuring its in-house verified and validated software into a commercial user-friendly format for more general use by the non-technical expert. The service is available in North America via BG Technology, Inc. (Chicago & Houston). This paper describes in more detail the application of the SRA techniques to developing a rigorous integrity management program that ensures pipelines are operated to a quantified, consistent and acceptable level of reliability (and hence safety).

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