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Corrosionfracture kinetics in welded pipes in chlorine-saturated carbon dioxide oilfield media

Anna Fedotova, Mikhail Vyboischik, Dmitry Kazdayev, Sergey Knyazkin, Tamara Tetyueva, A. Groysman, V.A. Polyansky, A.A. Kharkov, R.K. Vagapov, O.V. Shvetsov, A.A. Alkhimenko, A.A. Kazakov (+9 others)
2021 E3S Web of Conferences  

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Bypass tests of Ø219×8mm 13KhFA, 08KhMFChA, 20-ksh (steel 20 corrosion resistant cold resistant) and Grade steel 20 piping spools were carried out on an oil-gathering line of one of the oilfields in the Stavropol region. Tubing condition was checked after 7, 15, 17 and 23 months of testing. After two years in service no change was found in mechanical properties of the base metal or weldments manufactured from 13KhFA and 08KhMFChA steels. It has been demonstrated that the formation of
more » ... ntaining phase in corrosion products inhibits the penetration of chlorine ions from corrosive media to the surface of metal and thus reduces corrosion rates. Estimated, laboratory and comparison passivation coefficients have been proposed. These coefficients make it possible to predict the level of steel self-passivation with regard to operating conditions of particular oilfields.
doi:10.1051/e3sconf/202122501007 fatcat:ode3h7snqnfvlp77xehyn7l75u
DOAJ Szczepanski
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Anna Fedotova, Mikhail Vyboischik, Dmitry Kazdayev, Sergey Knyazkin, Tamara Tetyueva, A. Groysman, V.A. Polyansky, A.A. Kharkov, R.K. Vagapov, O.V. Shvetsov, A.A. Alkhimenko, A.A. Kazakov, B.S. Ermakov, A.B. Laptev, I.A. Golubev, A.I. Zhitenev, E.L. Alekseeva, M.A. Kovalev, A.D. Davydov, D.A. Strekalovskaya, N.O. Shaposhnikov. "Corrosionfracture kinetics in welded pipes in chlorine-saturated carbon dioxide oilfield media." E3S Web of Conferences (2021) 01007