Alex de Joode, Chairman of the Technical Committee at FOSA, and Head of Pipelines Terminals Business Unit at AP Sensing, Germany, discusses the applicability of distributed fibre optic sensing based pipeline leak detection software under API 1130 and API 1175. The 2022 revisions of API 1175 (Pipeline Leak Detection - Programme Management) and API 1130 (Computational Pipeline Monitoring for Liquids) included many essential updates. The current state-of-the art pipeline leak detection methods were reviewed, including the contribution of distributed fibre optic sensing (DFOS) technologies. DFOS based pipeline leak detection and location software (DFOS-PLDS) is possibly the most important technological development in pipeline leak detection in recent years. Despite being a relatively new technology, DFOS-PLDS is already applied to an extensive number of pipelines covering a wide variety of pipeline conditions. DFOS-PLDS's fast adoption is a testimony to the benefits it can provide. Despite not prescribing specific pipeline LDS methods, Pipeline and Hazardous Materials Safety Administration (PHMSA) recently listed 'fibre optic based distributed sensing' as a type of continuous pipeline monitoring in a November 2021 ruling.
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