powderИзвестия вузов. Порошковая металлургия и функциональные покрытияPowder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya)1997-308X2412-8767НИТУ "МИСИС"10.17073/1997-308X-2025-6-65-82powder-1064Research ArticleНаноструктурированные материалы и функциональные покрытияNanostructured Materials and Functional CoatingsМеханизмы разрушения антикоррозионных полимерных покрытий на металлических поверхностях нефтепромысловых трубопроводов: обзорMechanisms of failure in anti-corrosion polymer coatings on metallic surfaces of oilfield pipelines: Reviewhttps://orcid.org/0000-0002-4517-3744ЮдинП. Е.YudinP. E.

Павел Евгеньевич Юдин – к.т.н., доцент кафедры «Металловедение, порошковая металлургия, наноматериалы» Самарского государственного технического университета; директор по нау­ке ООО «НПЦ «Самара»

Россия, 443100, г. Самара, ул. Молодогвардейская, 244

Россия, 443022, г. Самара, Гаражный пр-д, 3б

Pavel E. Yudin – Cand. Sci. (Eng.), Associate Professor of the Department of metal science, powder metallurgy, nanomaterials of Samara State Technical University; Director of Science of Samara Scientific and Production Center, LLC

133 Molodogvardeyskaya Str., Samara 443001, Russia

3B Garazhny Pr., Samara 443022, Russia

yudin@npcsamara.ruhttps://orcid.org/0000-0002-1564-0858ЛожкомоевА. С.LozhkomoevA. S.

Александр Сергеевич Ложкомоев – д.т.н., вед. науч. сотрудник 

Россия, 634055, г. Томск, пр-т Академический, 2/4

Aleksandr S. Lozhkomoev – Dr. Sci. (Eng.), Leading Researcher

2/4 Akademicheskiy Prosp., Tomsk 634055, Russia

asl@ispms.ruСамарский государственный технический университет; ООО «НПЦ «Самара»РоссияSamara State Technical University; Samara Research and Production Center LLCRussian FederationИнститут физики прочности и материаловедения СО РАНРоссияInstitute of Strength Physics and Material Science, Siberian Branch of the Russian Academy of SciencesRussian Federation2025100120261966582Copyright © Юдин П.Е., Ложкомоев А.С., 20262026Юдин П.Е., Ложкомоев А.С.Yudin P.E., Lozhkomoev A.S.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://powder.misis.ru/jour/article/view/1064

Коррозия является одной из главных причин выхода из строя нефтегазового оборудования. Помимо уменьшения его срока службы, она оказывает влияние на безопасность при его эксплуатации. В настоящее время добыча нефти в РФ осложнена обводнeнноcтью скважинной продукции, что в значительной степени интенсифицирует процессы коррозии. Применение внутренних полимерных покрытий трубопроводов частично решает данную проблему, однако доля отказов, связанных с коррозией, до сих пор остается на высоком уровне. Для эффективной протекторной защиты нефтепроводов с использованием полимерных покрытий необходимо понимание механизмов их разрушения, в том числе в приближенных к реальным условиях эксплуатации. Это позволит находить эффективные решения, способствующие поддержанию эксплуатационного фонда нефтяных скважин в работоспособном состоянии. В настоящей работе описаны основные механизмы разрушения полимерных покрытий на металлических поверхностях, в том числе при их эксплуатации в агрессивных средах. Выделены основные факторы, обуславливающие разрушение покрытий нефтепроводов: диффузия и абсорбция молекул воды внутри полимерной матрицы; нарушение связей внутри полимерной сети покрытия; отслоение покрытий из-за потери адгезии между ним и металлом; межфазная коррозия; катодное отслоение; образование пузырей; эрозионные процессы. Приведены результаты исследования различных антикоррозионных покрытий нефтепроводов на эпоксиноволачной основе после эксплуатации на месторождениях. Продемонстрированы изображения покрытий на различных этапах разрушения. Цель работы заключалась в обобщении механизмов разрушения полимерных покрытий на металлах в различных условиях и уточнении стадийности разрушения покрытий нефтепроводов.

Corrosion is one of the primary causes of failure in oil and gas equipment, affecting not only its service life but also operational safety. In the Russian Federation, crude-oil production is increasingly complicated by the high water content of produced fluids, which significantly accelerates corrosion processes. The use of internal polymer coatings in pipelines partly mitigates this problem; however, the proportion of corrosion-related failures remains high. Effective protection of oil pipelines using polymer coatings requires a clear understanding of their degradation mechanisms, including under conditions that closely approximate field operation. Such understanding enables the development of effective solutions that help maintain the operating stock of oil wells in serviceable condition. This work summarizes the principal mechanisms of degradation of polymer coatings on metallic surfaces, including under exposure to aggressive environments. The key factors governing coating failure in oil pipelines are identified: diffusion and absorption of water molecules within the polymer matrix; disruption of molecular interactions in the polymer network; delamination due to loss of adhesion between the coating and the metal; interfacial corrosion; cathodic delamination; blister formation; and erosion-driven damage. The study presents results of the examination of various epoxy–novolac-based anticorrosion coatings removed from pipelines after field service and provides representative images of coatings at different degradation stages. The aim of the work was to consolidate current knowledge on the degradation mechanisms of polymer coatings on metals under diverse conditions and to refine the staged description of coating degradation in oil pipelines.

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The authors declare that there are no conflicts of interest present.