Dynamic modelling of the reliability and availability of complex installations of natural gas transmission networks Application to a blending station

摘要

GRTgaz, a subsidiary of the GDF SUEZ group, is responsible for natural gas transmission activities in France (excluding south-west France). In the context of developing the performance of the Transmission network and its approach to manage risk, GRTgaz asked the Gas and New Energies Research Centre of the GDF SUEZ Research and Innovation Division (CRIGEN-DRI) for support in an investment project for the reinforcement of an operating installation. The approach developed by CRIGEN-DRI is based on a systemic approach, and enables to evaluate the reliability and availability of any type of industrial installation. This approach, and the tools used, were chosen to guarantee a high level of flexibility and adaptation to the wide range of GRTgaz installations. This document details the different stages of the study process (technical and organizational aspects) and illustrates them with an example-study of a blending station. Although particularly complex, this example shows the relevance of the development choices made by CRIGEN-DRI and the significant contribution of the expert knowledge of GRTgaz. This article also highlights the richness of the results provided by the approach (indicators of reliability and availability) and proposes a stage during which these values are consolidated before being made available to decision-makers.