April 2022, Vol. 249, No. 4
Features
A Case Study: Distortion, Buckling of 52-Inch Gas Pipeline Related to High Temperature
By Amer Jarragh, Team Leader, and Arnab Gupta, Inspection Specialist Pipeline Inspection Division, Kuwait Oil Company Pigging as a means of cleaning in-service hydrocarbon pipelines is a critical activity that requires stringent precautions to be followed by the pipeline operator. The presence and accumulation of pyrophoric scales within fuel gas pipelines, along with oxygen ingress, can create a conducive environment for ignition and fire inside the pipeline during pigging activity. Images of the retrieved pipe sample show upheavel buckling and residual external coating. The following article discusses this hazard and precautio

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