The Paton Welding Journal, 2003, №04

2003 №04 (09)

2003 №04 (02)

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The Paton Welding Journal, 2003, #4, 2-6 pages

Evaluation of condition of metal of welded pipes of long-operated gas pipelines

S.E. Semyonov¹, A.A. Rybakov¹, L.V. Goncharenko¹, T.N. Filipchuk¹, M.N. Drogomiretsky², B.I. Pedko²

¹E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.
²GK «UKRTRANSGAS», Kyiv, Ukraine

Abstract
Service properties of specimens of pipes, cut from operating gas pipeline and also from pipes of emergency stock, are investigated. The feasibility of preserving serviceability of pipe metal after the long-term service is shown. It was established that the decreased characteristics of metal strength of separate pipes as compared with rated values are not due to the effect of service loads. To provide the safe service of the old gas pipelines it is necessary to reveal and remove the metal defects and also to perform the diagnostic examinations with identification of laid-out pipes, evaluation of level of technical characteristics and stability of quality.
Keywords: gas pipeline, material, service, investigation, service properties, condition, ageing

References

1. Paton, B.E., Semyonov, S.E., Rvbakov, A.A. et al. (2000) Ageing and procedure of evaluation of the state of metal of the main pipelines in service. The Paton Welding J., 7, 2−10.
2. Semyonov, S.E., Rybakov, A.A., Kirian, V.I. et al. (2001) Experimental evaluation of the state of metal of long-serviced welded oil pipelines. Ibid., 5, 17−21.
3. Lejkin, EM., Litvinenko, D.A., Rudchenko, A.V. (1972) Production and properties of low-alloy steels. Moscow: Metallurgiva.
4. Girenko, V.S., Semyonov, S.E., Goncharenko, L.V. (2001) Strain ageing of pipe steels. Tekhn. Diagnostika i Nerazr. Kontrol, 3, 32-35.
5. Paton, B.E., Trufyakov, V.I., Kirian, V.I. (1982) Requirments to viscosity of steel for main gas pipelines in use of avalanche fracture arresters in them. Avtomatich. Svarka, 12, 5−7.

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Suggested Citation

S.E. Semyonov, A.A. Rybakov, L.V. Goncharenko, T.N. Filipchuk, M.N. Drogomiretsky, B.I. Pedko (2003) Evaluation of condition of metal of welded pipes of long-operated gas pipelines. The Paton Welding J., 04, 2-6.

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