Category Archives: Standards

San Bruno – organisational analysis

If you are in this industry you must be aware of the San Bruno failure in September 2010. The immediate causes are now well known.  Equally interesting is recent analysis of the underlying organisational failures in both the pipeline owner … Continue reading

Posted in Incidents, Research, Risk assessment, Standards | Leave a comment

SMS preparation

The most prolific commenter on this blog is Chris Hughes of OSD who is passionate about good pipeline engineering.  Chris and I communicate regularly off-line as well, and he has offered the following for me to reproduce here.  I’ll add … Continue reading

Posted in Pipeline design, Risk assessment, Standards | 11 Comments

Risk matrix selection

I am surprised too often by people who think that they can do an AS 2885 risk assessment by using some risk matrix other than that published in the Standard.  AS 2885.1 makes quite clear that risk evaluation must be … Continue reading

Posted in Risk assessment, Standards | 4 Comments

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

Road crossings and high design factor

The rules for allowable stress at road crossings are given in Clause 5.7.3(c) of AS 2885.1.  Recently I had an interesting query which illustrated a bit of a gap in these rules. Basically the combined equivalent stress should be calculated … Continue reading

Posted in Operations, Pipeline design, Standards, Uncategorized | 2 Comments

Temperature de-rating

Easing back into writing after a long period of zero inspiration has been helped by some advice from Phil Venton in response to a query he received about the temperature de-rating rules in AS 2885.1: I was going through the … Continue reading

Posted in Pipeline design, Standards | 4 Comments

AS 2885.1 review status

Three months of writers’ block …      It has at least revealed that there is an almost unchanged stream of traffic to this blog even when nothing new is going on, which is gratifying in its own way. Back … Continue reading

Posted in Standards | 2 Comments