Corrosion Damage to the Pipes of the North Gas Pipeline


Stress-corrosion is the most frequent cause of failures on the linear part of the main gas pipelines (in central Russia — 50 % causes of emergencies occurrence). For gas pipelines of the Far North the frequency of accidents due to corrosion damages is low. Stress-corrosion phenomenon on the gas pipelines of the Republic of Sakha (Yakutia) was not observed before the above considered case. This fact can be explained by the influence of the external conditions of loading on the frequency of stress-corrosion accidents: large majority of accidents due to stress-corrosion falls within the most loaded gas pipelines with the diameter of 1420 and 1220 mm. The article reviews stress-corrosion cracking revealed in 2019 on the main gas pipeline of Republic of Sakha (Yakutia) during study of the causes of the main gas pipeline destruction after operation of more than 50 years. Gas pipeline destruction occurred at the site of three consistently welded pipes with the diameter of 530 mm. Destruction centers were corrosion ulcers formed on the mechanism of galvanic corrosion at contact of pipes with degradation during long operation of bitumen isolation with steel bars. Through cracks of corrosion cracking with a length of 28 and 70 mm normal to the direction of the main crack were found in the congestion of corrosion ulcers. The primary corrosion crack was formed under the influence of localization of corrosion process and pulling stresses due to the development of ulcer corrosion. Cracks extended along the body of the ferrite grains along the action of maximum pulling stresses were not structurally-selective and not the seats of destruction. Corrosion crack is developing as a continuous electrochemical process intensified by the imposed tensile strength.

  1. Krasovskiy A.Ya., Lokhman A.I., Orynyak I.V. Stress-corrosion destruction of the main gas pipelines. Problemy prochnosti = Strength problems. 2012. № 2. pp. 23–43. (In Russ.).
  2. Karpov S.V., Shiryapov D.I., Alikhashkin A.S. Comprehensive studies of stress-corrosion cracking at the main gas pipelines: experience and prospects. Vesti gazovoy nauki = News of gas science. 2016. № 3 (27). pp. 143–153. (In Russ.).
  3. Aleksandrov Yu.V., Aginey R.V. Current issues of corrosion protection of long-operating main gas pipelines. Saint Petersburg: Nedra, 2012. 394 p. (In Russ.).
  4. Kryzhanivskyi E.I., Nykyforchyn H.M. Specific features of hydrogen-induced corrosion degradation of steels of gas and oil pipelines and oil storage reservoirs. Materials Science. 2011. Vol. 47. № 2. pp. 127–138.
  5. Nykyforchyn H., Lunarska E., Tsyrulnyk O., Nikiforov K., Gabetta G. Effect of the long-term service of the gas pipeline on the properties of the ferrite-pearlite steel. Materials and Corrosion. 2009. № 9. pp. 716–725.
  6. Beavers J.A., Harper W.V. Stress Corrosion Cracking Prediction Model. New Orleans, 2004.
  7. Puiggali M., Rousserie S., Touzet M. Fatigue crack initiation on low carbon steel pipes in a near-neutral pH environment under potential control conditions. Corrosion. 2002. Vol. 58. № 11. pp. 961–969.
  8. Bukleshev D.O. Simulation Modeling of Allowable Load on Weld-affected Zones with Various Degree of Corrosive Damage for Main Pipelines Safe Operation. Bezopasnost truda v promyshlennosti = Occupational Safety in Industry. 2018. № 2. pp. 12–17. (In Russ.). DOI: 10.24000/0409-2961-2018-2-12-17
  9. Syromyatnikova A.S. Operational degradation of metal pipes of the North main gas pipelines. Novosibirsk: Izd-vo SO RAN, 2017. 97 p. (In Russ.).
  10. Alekseev A.A., Bolshakov A.M., Syromyatnikova A.S. Study of gas pipeline corrosion in the Arctic conditions. Territoriya Neftegaz = Oil and Gas Territory. 2018. № 11. pp. 58–61. (In Russ.).
  11. Bolshakov A.M., Syromyatnikova A.S. Destruction and damage of gas pipeline facilities during long-term operation in the Arctic conditions. Nauka i obrazovanie = Science and education. 2015. № 4 (80). pp. 94–99. (In Russ.).
  12. Esiev T.S. On the influence of the time factor in the development of the main gas pipelines damage. Problemy stareniya staley magistralnykh truboprovodov = The problems of steel aging of the main gas pipelines. Nizhny Novgorod: Universitetskaya kniga, 2006. pp. 94–107. (In Russ.).
  13. Tomashov N.D. The theory of metal corrosion and protection. Moscow: Izd-vo AN SSSR, 1960. 591 p.
DOI: 10.24000/0409-2961-2019-7-56-59
Year: 2019
Issue num: July
Keywords : corrosion cracking destruction main gas pipeline pit corrosion
  • Syromyatnikova A.S.
    Cand. Sci. (Phys.-Math.), Assoc. Prof., Lead Researcher, Federal Research Centre «The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences», Yakutsk, Russia
  • Bolshakov A.M.
    RAS Professor, Dr. Sci. (Eng.), Director Federal Research Centre «The Yakut Scientific Centre of the Siberian Branch of the Russian Academy of Sciences», Yakutsk, Russia
  • Siruk V.K.
    Graduate Student North-Eastern Federal University in Yakutsk, Yakutsk, Russia