Category Archives: External interference

Penetration resistance – existing pipelines

I’ve written before about penetration resistance and the B-factor as specified by AS 2885.1 Appendix M, but that post didn’t distinguish between design of a new pipeline and review of an existing line.  From time to time I see confusion in … Continue reading

Posted in External interference, Operations, Pipeline design, Risk assessment, Standards | 3 Comments

“Hypothetical” frequency

In the AS 2885 risk matrix the five frequency levels are: Frequent – expected to occur once per year or more Occasional – may occur occasionally in the life of the pipeline Unlikely – unlikely to occur within the life … Continue reading

Posted in External interference, Incidents, Risk assessment | 4 Comments

Australian failure frequencies

I have previously made passing mention of historical Australian pipeline incident rates as an aid to estimating which frequency category to select from the risk matrix when doing a risk evaluation.  It seems worth briefly updating that in the light … Continue reading

Posted in External interference, Risk assessment | 1 Comment

Road hazards

There is pressure from some quarters for new pipelines to be kept out of farmland and laid along roads, as I have mentioned previously.  A little while ago I was asked whether the APIA/POG pipeline incident database could reveal anything … Continue reading

Posted in External interference, Incidents, Pipeline design, Risk assessment | 9 Comments

Vehicle impacts and pipeline facilities

By coincidence I have recently received photos of two separate incidents involving vehicle accidents at pipeline facilities.  No names, no pack drill, but I am grateful to the pipeline owners for permission to show these images and discuss the implications. … Continue reading

Posted in External interference, Incidents, Pipeline design, Risk assessment | 4 Comments

Procedural controls

I reported recently on a couple of very nasty near misses, and if you look at the comments at the end of that post there is another scary story about someone who thought he did not need to follow the … Continue reading

Posted in Eng'g philosophy, External interference, Incidents, Operations, Risk assessment | 2 Comments

Recruiting researchers

If you have been reading this blog for a while you know that I’m very keen on  the research into sociology of safety under the Energy Pipelines CRC.  That research program is looking for another PhD candidate who may (but … Continue reading

Posted in External interference, Incidents, Operations, Research, Risk assessment | Leave a comment