PARLOC -- Pipeline and riser loss of containment: North Sea experience

PARLOC was initiated by UKOOA in 1989, in the post-Piper A climate, to identify hazards to operating pipelines and quantify historical loss of containment frequencies, and thus contribute to pipeline safety assessments. It is based on a pipeline and an incident database, which have been updated periodically. This paper presents results from the most recent update completed in 1994 and describes the databases, their analysis and use in safety studies.