«Equipment and technologies for oil and gas complex»

Investigation of metal properties aging processes of on-land main gas pipelines

UDC: 621.643:669.018.25
DOI: -

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia
² All-Union Research Institute for Construction, Operation of Pipelines and Fuel and Energy Complex Facilities, Moscow, Russia

Keywords: pipeline, mechanical properties, residual operational life-time, strength, ductility

Annotation:

The authors of the article study the aging properties process of the pipe base metal and the properties of the weld of the main on-land gas pipelines in conditions of the Far North. The study consists of two parts. The first part includes laboratory studies of the mechanical properties of the pipe metal of main gas pipelines with a significant service life (30–45 years). The second part of the study presents a comparison of the results obtained with the results of the previous studies of mechanical properties, which will allow assessing the change of properties over time.

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