All in-service pipelines encounter deterioration due to environmental effects. The deterioration is a time-dependent process which makes the structural integrity of pipelines a time variant characteristic. Advanced mathematical methods which employ probability theory need to be used for time-dependent reliability analysis of pipelines. The methods for the time-dependent reliability analysis of in-service pipelines are presented. These methods will allow for:
Application to all type of corrosion-affected pipelines.
The capability to consider multi failure mechanisms/modes.
Consideration of the scarcity of monitoring data from real-world examples.
To be continued...