| 2001 №05 (04) | 2001 №05 (06) |
The Paton Welding Journal, 2001, #5, 17-21 pages
Experimental evaluation of the state of metal of long-serviced welded oil pipelines
S.E. Semenov1, A.A. Rybakov1, V.I. Kyrian1, T.N. Filipchuk1, L.V. Goncharenko1, V.M. Vasilyuk2, R.V. Klimonchuk2, M.V. Stetskiv3, F.S. Vlasyuk3
1E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.2State Joint Stock Company «Main Oil Pipelines «Druzhba», Lviv, Ukraine
3State Joint Stock Company «Pridneprovskiye Main Oil Pipelines», Kremenchug, Ukraine
Abstract
Results of comprehensive investigations of samples of pipes cut out from oil pipelines, including hydraulic tests of a pipe section to fracture, are given. Factors of long-time force loading were found to have a low effect on mechanical properties and safety factor for ductility of materials, as well as on preservation of a high structural strength of pipelines after a long-time operation
Keywords: pipeline, operation, material, state, ageing, investigation, hydraulic tests, mechanical properties
References
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3. Lanchakov, G.A., Stepanenko, A.L, Pashkov, Yu.L (1994) Effect of time of operation on residual strength of pipelines. Gaz. Promyshlennost, 3, 11 - 12.
4. Gumerov, A.G., Zajnulin, R.S., Yamaleev, K.N. et al. (1995) Ageing of pipes in oil pipelines. Moscow: Nedra