Property Damage vs Release Volume

While we should view database-input information suspiciously, insights may nonetheless emerge.  Joel Anderson recently compared the reported property damage costs with the reported release volumes in PHMSA data 2010 to 2018. spill vol vs prop damage cost This is just pipeline spills, excluding tanks, etc.   Note this plot is log-log scale so small changes can equate […]

Pipeline Hazardous Liquid Spills Analyses

Liq Spills Analyses Here’s some more interesting work from Joel Anderson:  an examination of recent hazardous liquid spill volumes, from the PHMSA reporting databases. Analyses like these not only help us with basic understanding of pipeline releases, but also provide useful input into risk assessments.  In many cases, our estimates of location-specific loss potential are […]

How do we Assess for Geohazards?

Many miles of pipeline around the world are subject to damage from geohazards.  As used here, ‘geohazard’ refers to any earth movements sufficient to damage a pipeline, and can also include weather- and water-related events that are potentially damaging.  So, we often group, under the heading ‘geohazard’, a wide range of phenomena such as: landslide […]

The Test of Time Estimation of Exposure

In the absence of more compelling evidence, an appropriate starting point for the exposure estimation may be the fact that a component or collection of components has not failed after x years in service. This involves the notion of having ‘withstood the test of time’. A component having survived a threat, especially for many years, […]

Certifications: The Leaning Tree Incident

An operator recently experienced damage to their pipeline when a metal pipeline marker post was driven into the ground by a falling tree – the ‘leaning tree incident’. This is certainly not a common pipeline failure scenario. How much criticism against a risk assessment is warranted if this obscure event is missed? CERTIFICATION With growth in both the number of […]