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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">corrosionprotection</journal-id><journal-title-group><journal-title xml:lang="ru">Практика противокоррозионной защиты</journal-title><trans-title-group xml:lang="en"><trans-title>Theory and Practice of Corrosion Protection</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-5738</issn><issn pub-type="epub">2658-6797</issn><publisher><publisher-name>Association "CARTEC"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31615/j.corros.prot.2025.116.2-1</article-id><article-id custom-type="elpub" pub-id-type="custom">corrosionprotection-165</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ПРИБОРЫ И МЕТОДЫ КОРРОЗИОННОГО КОНТРОЛЯ</subject></subj-group></article-categories><title-group><article-title>Об ограниченности применения предиктивного анализа для оценки опасности углекислотной коррозии стали на газовых месторождениях</article-title><trans-title-group xml:lang="en"><trans-title>On the Imitations of Using Predictive Analysis to Assess the Risk of Carbon Dioxide Corrosion of Steel in Gas Fields</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вагапов</surname><given-names>Р. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Vagapov</surname><given-names>R. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Руслан Кизитович Вагапов, д.т.н., к.х.н., член-корр. РАЕН, начальник лаборатории</p><p>142717, Московская обл, г.о. Ленинский, пос. Развилка, ул. Газовиков, зд. 15, стр. 1</p></bio><bio xml:lang="en"><p>Ruslan K. Vagapov, DcS in Technic, Cand. Sci. in Chemistry, Associate Member of the Russian Academy of Natural Sciences, Head of Laboratory</p><p>15, bld. 1, Gazovikov St., Razvilka, Leninsky municip., Moscow region, 142717</p></bio><email xlink:type="simple">R_Vagapov@vniigaz.gazprom.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ибатуллин</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ibatullin</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Константин Анатольевич Ибатуллин, к.х.н., в.н.с</p><p>142717, Московская обл, г.о. Ленинский, пос. Развилка, ул. Газовиков, зд. 15, стр. 1</p></bio><bio xml:lang="en"><p>Konstantin A. Ibatullin, Cand. Sci. in Chemistry, Leading Researcher</p><p>15, bld. 1, Gazovikov St., Razvilka, Leninsky municip., Moscow region, 142717</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ООО «Газпром ВНИИГАЗ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>LLC Gazprom VNIIGAZ</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>17</day><month>07</month><year>2025</year></pub-date><volume>30</volume><issue>2</issue><fpage>6</fpage><lpage>19</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вагапов Р.К., Ибатуллин К.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Вагапов Р.К., Ибатуллин К.А.</copyright-holder><copyright-holder xml:lang="en">Vagapov R.K., Ibatullin K.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.corrosion-protection.ru/jour/article/view/165">https://www.corrosion-protection.ru/jour/article/view/165</self-uri><abstract><p>Углекислотная коррозия является одной из основных проблем газовых месторождениях на современном этапе их развития. Одним из методов для оценки коррозионной агрессивности эксплуатационных условий нефтегазовых месторождений является использование расчетных моделей. Предиктивные модели известны еще с 1970-х годов и разработаны преимущественно для нефтяных месторождений. Среди таких моделей для определения скоростей углекислотной коррозии самыми известными являются уравнения NORSOK и де Ваарда-Миллиамса. Опыт ООО «Газпром ВНИИГАЗ» показывает, что на настоящий момент верифицированных моделей расчета скоростей коррозии для углекислотных и других агрессивных условий не существует и они не применяются на объектах добычи, транспорта и переработки газа. Сравнение скоростей коррозии, рассчитанных по уравнениям NORSOK и де Ваарда-Миллиамса, показал их завышенные в несколько раз значения, которые существенно отличаются от реальных значений общей углекислотной коррозии на основных газовых месторождениях. Также наблюдается отличие расчетных скоростей коррозии от полученных ООО «Газпром ВНИИГАЗ» по результатам имитационных испытаний. Рассмотрены основные отличия и несоответствия в динамике изменения таких расчетных скоростей углекислотной коррозии в зависимости от основных агрессивных факторов (температуры, парциального давления и др.). Подчеркнута важность выбора для получения исходных данных не одного, как в рассмотренных моделях предиктивного анализа, а нескольких методов испытаний, предложенных и практикуемых ООО «Газпром ВНИИГАЗ» при оценке степени опасности углекислотной коррозии на газовых месторождениях. Обсуждены основные ограничения существующих моделей предиктивного анализа, которые не позволяют их использовать на газовых объектах. К ним можно отнести то, что модели расчета не позволяют оценивать опасность локальной углекислотной коррозии, не учитывают минеральный состав водных сред, а также возможность образования и свойства продуктов коррозии на стали. Отмечено, что, по данным ООО «Газпром ВНИИГАЗ», существующие модели расчета скорости углекислотной коррозии дают существенно завышенные значения, предназначены для нефтяных объектов и не могут быть применены на газовых объектах. В таких условиях основным способом определения скоростей коррозии остается проведение имитационных испытаний.</p></abstract><trans-abstract xml:lang="en"><p>Carbon dioxide corrosion is one of the main problems of gas fields at the present stage of their development. One of the methods for assessing the corrosion aggressiveness of the operating conditions of oil and gas fields is the use of calculation models. Predictive models have been known since the 1970s and were developed mainly for oil fields. Among such models for determining the rates of carbon dioxide corrosion, the most famous are the NORSOK and de Waard-Milliams equations. The experience of Gazprom VNIIGAZ LLC shows that at present, there are no verified models for calculating corrosion rates for carbon dioxide and other aggressive conditions and are not used at gas production, transportation and processing facilities. A comparison of the corrosion rates calculated using the NORSOK and de Waard-Milliams equations showed that they are several times overestimated, which differ significantly from the actual values of total carbon dioxide corrosion at the main gas fields. There is also a difference in the calculated corrosion rates from those obtained by Gazprom VNIIGAZ LLC based on the results of simulation tests. The main differences and discrepancies in the dynamics of changes in such estimated rates of carbon dioxide corrosion from the main aggressive factors (temperature, partial pressure, etc.) are considered. The importance of choosing for obtaining initial data not one, as in the considered predictive analysis models, but several testing methods proposed and practiced by Gazprom VNIIGAZ LLC when assessing the degree of danger of carbon dioxide corrosion in gas fields is emphasized. The main limitations of existing predictive analysis models that do not allow their use at gas facilities are discussed. These include the fact that the calculation models do not allow assessing the danger of local carbon dioxide corrosion, do not take into account the mineral composition of aqueous media, as well as the possibility of formation and properties of corrosion products on steel. It is noted that, according to Gazprom VNIIGAZ LLC, existing models for calculating the rate of carbon dioxide corrosion give significantly overestimated values, are intended for oil facilities and cannot be used at gas facilities. In such conditions, the main method for determining corrosion rates remains simulation tests.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>модель расчета</kwd><kwd>углекислотная коррозия</kwd><kwd>коррозионно-агрессивные факторы</kwd><kwd>моделирование испытаний</kwd><kwd>скорость коррозии</kwd><kwd>общая коррозия</kwd><kwd>локальные дефекты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>calculation model</kwd><kwd>carbon dioxide corrosion</kwd><kwd>corrosion-aggressive factors</kwd><kwd>test modeling</kwd><kwd>corrosion rate</kwd><kwd>general corrosion</kwd><kwd>local defects</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Кантюков Р.Р., Запевалов Д.Н., Вагапов Р.К. Исследование коррозионной активности сред и стойкости используемых материалов в условиях присутствия агрессивного диоксида углерода // Известия высших учебных заведений. 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