February 2021, Vol. 248, No. 2


Managing Integrity for Subsea Pipelines Without Pigging

By Lloyd’s Register  The Pipeline and Hazardous Materials Safety Administration (PHMSA) estimates that 40% of the world’s pipelines are difficult to pig or are deemed “unpiggable,” which means they cannot be inspected via inline inspection (ILI).   As a pipeline operator, you need to meet strict legislative and environmental requirements. You must demonstrate and document the safe performance of pipeline assets by assessing risk factors, performing inspections and implementing mitigation measures.   But how can you effectively manage the integrity of subsea pipelines without pigging?   Current Regulations  Current pipeline safety regulations defined in the U.

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