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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Engineering Research</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Engineering Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Инженерные исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-8143</issn><issn publication-format="electronic">2312-8151</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">35063</article-id><article-id pub-id-type="doi">10.22363/2312-8143-2023-24-1-76-85</article-id><article-id pub-id-type="edn">DBDTZJ</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Recognization and characterization of sources rocks in well BX in the sedimentary basin of Cote d’Ivoire</article-title><trans-title-group xml:lang="ru"><trans-title>Распознавание и характеристика исходных пород в скважине BX в осадочном бассейне Кот-д’Ивуара</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7220-5978</contrib-id><contrib-id contrib-id-type="spin">9447-5901</contrib-id><name-alternatives><name xml:lang="en"><surname>Abramov</surname><given-names>Vladimir Yu.</given-names></name><name xml:lang="ru"><surname>Абрамов</surname><given-names>Владимир Юрьевич</given-names></name></name-alternatives><bio xml:lang="en"><p>PhD of Geology, Association Professor of the Department of Civil Engineering, Academy of Engineering</p></bio><bio xml:lang="ru"><p>кандидат геолого-минералогических наук, доцент департамента недропользования и нефтегазового дела, Инженерная академия</p></bio><email>geophy-rudn@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3898-467X</contrib-id><name-alternatives><name xml:lang="en"><surname>Essoh</surname><given-names>Nome G.S.</given-names></name><name xml:lang="ru"><surname>Эссо</surname><given-names>Ном Грас Соланж</given-names></name></name-alternatives><bio xml:lang="en"><p>postgraduate student, Subsoil and Oil and Gas Management Department, Academy of Engineering</p></bio><bio xml:lang="ru"><p>аспирант, департамент недропользования и нефтегазового дела, Инженерная академия</p></bio><email>egracesolange@yahoo.fr</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">RUDN University</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-06-25" publication-format="electronic"><day>25</day><month>06</month><year>2023</year></pub-date><volume>24</volume><issue>1</issue><issue-title xml:lang="en">VOL 24, NO1 (2023)</issue-title><issue-title xml:lang="ru">ТОМ 24, №1 (2023)</issue-title><fpage>76</fpage><lpage>85</lpage><history><date date-type="received" iso-8601-date="2023-06-26"><day>26</day><month>06</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Abramov V.Y., Essoh N.G.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Абрамов В.Ю., Эссо Н.Г.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Abramov V.Y., Essoh N.G.</copyright-holder><copyright-holder xml:lang="ru">Абрамов В.Ю., Эссо Н.Г.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0/legalcode</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/engineering-researches/article/view/35063">https://journals.rudn.ru/engineering-researches/article/view/35063</self-uri><abstract xml:lang="en"><p style="text-align: justify;">In order to recognize and characterize the sources rocks in the BX well, samples of this well have been selected and analysed using Rock-Eval pyrolysis method and another set samples were prepared and observed through microscope for visual kerogen characterisation. The total organic carbon of BX well sediments varies between 0.41 and 3.41 wt%, with 1.29 wt% on average. These high values indicate good organic matter content in this well. The hydrogen index (HI) of the studied samples ranges from 49 to 292 mgHC/gTOC, with an average of 109 mgHC/gTOC, indicating mainly a type III kerogen. This kerogen is composed of humic material (vitrinite and inertinite) and amorphous organic matter with marine microfossils (dinoflagellate cysts and micro-foraminiferal linings). Thermal maturity parameters show that, Maastrichtian, Campanian, Early Senonian and Turonian are immature with T<sub>max</sub> values below 435 °C. However, according to T<sub>max</sub> values, samples reach oil window in Albian at 9840 ft while spore colour index indicate that this limit can be put at 9210 ft into Cenomanian age. The section from 7260 to 7590 ft in Campanian interval displays the best qualities of source rock. This section is composed of good quantity of type III and type II/III kerogen with moderate hydrocarbon potential, but this source rock is immature to generate hydrocarbons.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Отобраны и проанализированы методом пиролиза Rock-Eval образцы из скважины BX, для того чтобы определить и охарактеризовать исходные породы в ней. Другой набор образцов подготовлен и просмотрен с помощью микроскопа для визуальной характеристики керогена. Общее содержание органического углерода в отложениях скважины BX варьируется от 0,41 до 3,41 весовых %, в среднем 1,29 весовых %. Такие высокие значения указывают на хорошее содержание органического вещества в этой скважине. Водородный индекс (HI) исследованных образцов колеблется от 49 до 292 мгHC/гTOC, в среднем 109 мгHC/гTOC, что указывает на наличие в основном керогена типа III. Этот кероген состоит из гуминового материала (витринита и инертинита) и аморфного органического вещества с морскими микрофоссилиями (цисты динофлагеллят и микрофораминиферовые отложения). Параметры термической зрелости показывают, что Маастрихтский, Кампанский, ранний Сенонский и Туронский периоды являются незрелыми со значениями T<sub>max</sub> ниже 435 °С. Однако, согласно значениям T<sub>max</sub>, образцы достигают нефтяного окна в Альбе на высоте 9840 футов, в то время как индекс цвета спор указывает, что этот предел может быть установлен на высоте 9210 футов в сеноманском возрасте. Участок от 7260 до 7590 футов в кампанском интервале демонстрирует лучшие качества исходной породы. Данный разрез состоит из хорошего количества керогена типа III и типа II/III с умеренным углеводородным потенциалом, но эта исходная порода незрелая для генерации углеводородов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>offshore</kwd><kwd>geochemical</kwd><kwd>stratigraphy</kwd><kwd>Rock-Eval analyze</kwd><kwd>petroleum potential</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>шельф</kwd><kwd>геохимия</kwd><kwd>стратиграфия</kwd><kwd>анализ Rock-Eval</kwd><kwd>нефтяной потенциал</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Tissot BP, Welte DH. Petroleum formation and occurrence. 2nd ed., revised and enlarged. Berlin, Heidelberg: Springer; 1984.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Espitalié J, Marquis F, Barsony I. Geochemical logging. In: Voorhees KJ. (ed.) Analytical Pyrolysis - Techniques and Applications. 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