Topic: Resources

Pipeline Risk Assessment

Risk assessment on any facility is most efficiently done by first dividing the facility into components with unchanging risk characteristics. For a cross-country pipeline, this involves collecting data on all portions of the pipeline and its surroundings and then using this data to ‘dynamically segment’ the pipeline into segments of varying length. Risk algorithms are […]

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, […]

Damage vs failure: a risk assessment needs to know the difference

To measure resistance in a way most useful to a risk assessment, we must estimate the possible presence of weaknesses, the rate of emergence of future weaknesses, and the role of each weakness in strength reduction. By W. Kent Muhlbauer, WKM Consulting, Austin, TX, USA Since several of our recent columns have dealt with management-of-risk […]

Where is the Risk Control Strategy?

In an earlier article, we noted that risk management is, in effect, often unintentionally delegated to decision-makers occupying the lower portions of the corporate org chart.  In many companies, the field personnel are essentially setting corporate risk levels via their choices in day-to-day activities and their perceptions of priorities. While we noted some advantages of […]

Measuring Failure Potential—What is Attacking? 

How Effective are Defenses?  Can it Survive? In several previous columns, we have noted the need for a very specific approach to measuring failure probability (PoF).  Three factors must be independently measured/estimated in order to fully understand PoF.  Let’s explore those factors a bit deeper here. Regardless of the definition of ‘failure’ being used, failure […]

Pipeline Risk Assessment—A Measurement Tool

Last time, we introduced the concept of essential elements for pipeline risk assessment.  These are the “let’s all get on the same page” aspects that every risk assessment should have in common. An important Essential Element calls for the use of measurements instead of any other kind of rating scheme (eg, indexes, points, scores, descriptors, […]

The PHMSA has recently criticised how Integrity Management Plan (IMP) risk assessments (RAs) for pipelines are being conducted. Do you also see problems?

There is a wide range of practice among pipeline operators right now. Some RA is admittedly in need of improvement, not yet meeting the intent of the IMP regulation. However, I believe that is not due to lack of good intention, but rather incomplete understanding of risk. Risk is a relatively new concept, and is […]

Risk Management Resources

Articles <!– Where is the Risk Control Strategy? –> Is formal risk assessment helping me? Pipeline risk assessment as a tool for resolving conflict Pipeline risk assessment: risk profiling Full understanding of pipeline risk generates numerous opportunities to reduce that risk. So previous chapters have already identified risk mitigation opportunities. Reducing exposure, increasing mitigation or […]