D. V. Novgorodov, V. G. Rybalko, A. S. Shleenkov, A. Yu. Surkov

A STUDY OF GAS PIPELINE EMERGENCY FAILURE

The paper presents the results of studying the causes of emergency failure of a gas pipeline with a diameter of 377 mm and a wall thickness of 6 mm (spiral-welded pipe). The gas pipeline has been operated for more than 35 years. In the process of the study, metal-fractographic analysis and mechanical tests were carried out. As a result, it has been established that the pipe material corresponds to the design solutions and that the overload is not associated with the growth of internal pressure. The reason for the force overload in the fracture zone is the ground instability caused by seasonal temperature fluctuations. The analysis of the causes of emergency failure makes it possible to improve the reliability of the pipeline through measures aimed at reducing off-design loads.

Acknowledgment: The work was performed within the state assignment from FASO Russia on the subject of Diagnostics, No. AAAA-A18-118020690196-3.

References:

1. Nikolaeva M.V., Atlasov R.A., Filippova M.D. Analysis of the causes of emergency situations at gas pipelines in permafrost. Vestnik of North-Eastern Federal University: Earth Sciences Series, 2017, vol. 4 (08), pp. 47–53. (In Russian).
2. Revazov A.M. Analysis of emergency and accidental situations at the main gas pipeline facilities, and the measures to prevent their occurrence and reduce the consequences. Upravlenie Kachestvom v Neftegazovom Komplekse, 2010, vol. 1, pp. 68–70. (In Russian).
3. Bolshakov A.M., Golikov N.I., Syromyatnikova A.S., Alekseev A.A., Tikhonov R.P. Fracture and Damage of Oil and Gas Industry Constructions in Long-Term Operation. Gaz. Promysh., 2007, vol. 7, pp. 89–91. (In Russian).
4. Chuhareva N.V., Mironov S.A., Tikhonova T.V. Analysis of accident causes in pipeline operation in the Far North during the period from 2000 to 2010. Elektronnyi nauchnyi zhurnal “Neftegazovoe Delo”, 2011, no. 3, pp. 231–243. Available at: http://www.ogbus.ru/authors/Chuhareva/Chuhareva_1.pdf
5. Sageeva Z.Z., Khayrullin R.Z. Analysis of emergency situations on the linear part of gas mains. Science Almanac, 2017 no. 4–3 (30). (In Russian).
6. Gostinin I.A., Viryasov A.N., Semenova M.A. The analysis of emergencies on linear part of the main gas pipelines. Inzhenernyi Vestnik Dona, 2013, no. 2. (In Russian). Available at: ivdon.ru/ru/magazine/archive/n2y2013/1618
7. Savonin S.V., Moskalenko A.V., Tyunder A.V., Knyazev S.E., Arsenteva Z.A. Analysis of the major causes of failures that have occurred on main gas pipelines. Neft i Gaz Sibiri, 2015, vol. 4 (21), pp. 112–121. (In Russian).
8. Daunis M.A., Timofeev B.T. Some features of assessment of low-cycle fatigue of welded joints in power engineering. Scientific and Technical Journal “Problems of Materials Science”, 2007, vol. 3 (51), pp. 127–140. (In Russian).
9. Berg V.I., Chekardovskiy M.N., Yakubovskaya S.V., Toropov V.S. Influence of heterogeneity of mechanical properties of various zones of the welded butt joints work connections in elastic-plastic deformation stage. Modern Problems of Science and Education, 2015, vol. 2 (part 3). (In Russian). Available at: https://science-education.ru/en/article/view?id=23518
10. Akulov A.I., Alekhin V.P., Ermakov S.I., Polevoy G.V., Rybachuk A.M., Chernyshov G.G., Yakushin B.F. Tekhnologiya i Oborudovanie Svarki Plavleniem i Termicheskoy Rezki [Technology and Equipment for Fusion Welding and Thermal Cutting, A.I. Akulov, ed.]. Moscow, Mashinostroenie Publ., 2003, 560 p.
11. SNiP 2.05.06-85. Magistralnye truboprovody [Trunk Pipelines]. Moscow, Stroyizdat Publ., 1997, 59 p. (In Russian).
12. SP 36.13330.2012: Svod pravil. Magistralnye truboprovody [Code of Practice. Trunk Pipelines]. Moscow, Gosstroy Publ., 2012, 97 p. (In Russian).
 

         

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