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Categories
Monthly Archives: October 2010
Corrosion and the AS 2885 safety process
I’m interested in feedback from those of you involved in pipeline maintenance or corrosion management. My experience of Australian safety management studies is that when the threat of external corrosion comes up we say something like “It’s got factory applied … Continue reading
Posted in Risk assessment, Standards
12 Comments
San Bruno prelim NTSB report
I confess to an almost voyeuristic fascination with pipeline incidents, of which the latest remains San Bruno. Partly that interest is the hope that we can learn from the misfortunes of others, but it’s also partly just naked curiosity (well, … Continue reading
Posted in Incidents
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Rules are for breaking?
The Discworld series of novels by Terry Pratchett present an entertaining combination of comedy and sardonic commentary in a bizarre fantasy world. (Pratchett also shows a very good grasp of scientific and technical matters.) In Thief of Time a senior … Continue reading
Posted in Eng'g philosophy, Risk assessment, Standards
5 Comments
Un-de-rating flanges
Flanges have pressure ratings defined by a standard, most commonly ANSI/ASME B16.5 for which the pressure ratings decrease as temperature rises above 38ºC. However the basis for the rating is conservative and AS 2885 allows some exemption from the de-rating … Continue reading
Posted in Standards
9 Comments
San Bruno fracture images
Found some pictures here of the failed San Bruno pipe, along with some experts’ (?) comments. I can’t draw even superficial conclusions as the pictures aren’t detailed enough and I lack the expertise anyway. However the zig-zag fracture with long … Continue reading
Posted in Incidents
4 Comments
San Bruno and High Reliability Organisations
Item 1: I guess any pipeline engineer who has been paying attention is aware of the recent San Bruno disaster in California, which killed 8 people. Among other things it lead to a flurry of reports in local media in … Continue reading
Posted in Eng'g philosophy, Risk assessment
3 Comments
Risk method diversity
If there’s one thing that has struck me here at the International Pipeline Conference it’s that there is a great diversity of approaches to pipeline risk management. If you’ve only been exposed to the AS 2885 approach you might not … Continue reading
Posted in Conferences, Eng'g philosophy, Risk assessment
1 Comment
IPC – overview
The previous post commented on the scale of the International Pipeline Conference in Calgary. It’s actually all a bit overwhelming. The papers cover every imaginable topic related directly or indirectly to pipeline engineering, although some themes attract a lot more … Continue reading
Posted in Conferences
3 Comments