Risk Analysis of LNG Pipe-in-Pipe Options

摘要

A liquefied natural gas (LNG) liquefaction terminal used a comparative risk assessment to evaluate four different pipe-in-pipe options for the loading line design to an offshore jetty system. The safety risk posed by the installation was evaluated with a quantitative risk assessment (QRA) procedure. A separate qualitative assessment was performed to evaluate the security risks associated with the project. Evaluation of the pipe-in-pipe and pipe-in-pipe-in-pipe technologies required additional frequency analysis to address the extra protection layers provided by the multi-pipe designs. The risk assessment process for the novel designs provided a more detailed basis for selection between the alternatives.