Vulnerability analysis method based on risk assessment for gas transmission capabilities of natural gas pipeline networks

Vulnerability analysis method based on risk assessment for gas transmission capabilities of natural gas pipeline networks

Natural gas

Risk analysis

Risk assessment

Vulnerability

Natural gas pipelines

Natural gas pipeline network

Transmissions

Network security

Transmission capacity

The crucial part of vulnerability analysis is identifying the critical components of a pipeline network. In this study, we proposed a novel analysis method- “Risk-Vulnerability,” which combines the characteristics of risk assessments and vulnerability analyses methods. Risk-Vulnerability identifies the critical components of a pipeline network from three perspectives: pipeline operating status, transmission performance, and network characteristics. The formulas of the importance value of each component were established. Then the component risk indicators were established, and the component risk values were calculated. And a utility theory was introduced to calculate the severity of the consequences. Finally, the component importance and risk values were multiplied to obtain the vulnerability of the component. The feasibility and effectiveness of the method were verified by comparing the identification results of this method to those from the weighted flow capacity rate (WFCR). The Risk-Vulnerability method provides an improved insight into the pipeline criticality compared to the WFCR and improves the calculation formulae based on the identification content, which can not only be used to identify critical components, but also can be used to formulate research on risk reduction measures for pipeline network systems.

108150

218

Reliability Engineering & System Safety

2022

Wang, WuChang

Zhang, Yi

Li, YuXing

Hu, Qihui

Liu, Chengsong

Liu, Cuiwei

journalArticle

0951-8320

10.1016/j.ress.2021.108150

https://www.sciencedirect.com/science/article/pii/S0951832021006384