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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">31723</article-id><article-id pub-id-type="doi">10.22363/2312-8143-2022-23-2-174-181</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">Geological structure and oil and gas content of the shelf of the Republic of Equatorial Guinea</article-title><trans-title-group xml:lang="ru"><trans-title>Геологическое строение и нефтегазоносность шельфа Республики Экваториальная Гвинея</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0622-8391</contrib-id><name-alternatives><name xml:lang="en"><surname>Kotelnikov</surname><given-names>Alexander E.</given-names></name><name xml:lang="ru"><surname>Котельников</surname><given-names>Александр Евгеньевич</given-names></name></name-alternatives><bio xml:lang="en"><p>PhD in Geology, Associate Professor, Head of the Department of Mineral Development and Oil &amp; Gas Engineering, Academy of Engineering</p></bio><bio xml:lang="ru"><p>кандидат геолого-минералогических наук, доцент, директор департамента недропользования и нефтегазового дела, Инженерная академия</p></bio><email>kotelnikov-ae@rudn.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9667-0230</contrib-id><name-alternatives><name xml:lang="en"><surname>Ondo Ayenvegue</surname><given-names>Lazaro M.</given-names></name><name xml:lang="ru"><surname>Ондо Айенвеге</surname><given-names>Лазаро Мба</given-names></name></name-alternatives><bio xml:lang="en"><p>master student, Department of Mineral Development and Oil &amp; Gas Engineering, Academy of Engineering</p></bio><bio xml:lang="ru"><p>магистрант, департамент недропользования и нефтегазового дела, Инженерная академия</p></bio><email>azaromba@outlook.es</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia (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="2022-08-21" publication-format="electronic"><day>21</day><month>08</month><year>2022</year></pub-date><volume>23</volume><issue>2</issue><issue-title xml:lang="en">VOL 23, NO2 (2022)</issue-title><issue-title xml:lang="ru">ТОМ 23, №2 (2022)</issue-title><fpage>174</fpage><lpage>181</lpage><history><date date-type="received" iso-8601-date="2022-08-21"><day>21</day><month>08</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Kotelnikov A.E., Ondo Ayenvegue L.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Котельников А.Е., Ондо Айенвеге Л.М.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Kotelnikov A.E., Ondo Ayenvegue L.M.</copyright-holder><copyright-holder xml:lang="ru">Котельников А.Е., Ондо Айенвеге Л.М.</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/31723">https://journals.rudn.ru/engineering-researches/article/view/31723</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The oil and gas potential of the Republic of Equatorial Guinea, in which revenues from the sale of gas and oil account for more than 90 % of national income, is studied. An urgent issue is to increase oil and gas reserves, in this regard, the task is to assess the prospects for discovering new oil fields based on the analysis of geological information. The oil and gas basin of the Gulf of Guinea stretches as a narrow coastal strip along the western coast of equatorial Africa and is represented by thick sedimentary strata. The most significant basin of the Rio Muni contains a thick promising stratum of Senonian deposits overlain by Tertiary sediments, the thickness of which increases from south to north. Intervals of reservoir rocks with good porosity properties are known in both Tertiary and Cretaceous sediments, but industrial productivity has so far been established only in the Cretaceous sediment complex. Within the basin there are promising oil and gas bearing areas with anticlinal zones of oil and gas accumulation, which are associated with screening of tectonic, stratigraphic and lithological types. In the southern parts of the basin, saline deposits are not deep and are of interest for the exploration of oil deposits. The results of the study showed that in the Rio Muni Basin, the territory of Block K in the southernmost part of Equatorial Guinea is a promising region with proven hydrocarbon reserves. The Paleocene and Turonian reservoirs consist of undeformed slope submarine fans similar to the Deepwater Campos Basin in Brazil.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Изучается нефтегазоносный потенциал Республики Экваториальная Гвинея, в которой доходы от продажи газа и нефти составляют более 90 % национального дохода. Актуальным является увеличение запасов нефти и газа, поэтому задачей исследования стала оценка перспективности обнаружения новых месторождений нефти на основе анализа геологической информации. Нефтегазоносный бассейн Гвинейского залива протягивается узкой прибрежной полосой вдоль западного побережья экваториальной Африки и представлен мощными осадочными толщами. Наиболее значимый бассейн Рио-Муни вмещает мощную перспективную толщу сенонских отложений, перекрытую третичными осадками, мощность которых увеличивается с юга на север. Интервалы пород-коллекторов с хорошими фильтрационно-емкостными свойствами известны как в третичных, так и в меловых отложениях, но промышленная продуктивность до настоящего времени установлена только в меловом комплексе отложений. В пределах бассейна присутствуют перспективные нефтегазоносные области, обладающие антиклинальными зонами нефтегазонакопления, которые связанны с экранированием тектонического, стратиграфического и литологического типа. В южных частях бассейна соленосные отложения залегают неглубоко и представляют интерес для обнаружения нефтяных залежей. Показано, что в бассейне Рио-Муни территории блока К в самой южной части Экваториальной Гвинеи - это перспективный регион с доказанными запасами углеводородов. Палеоценовые и туронские коллекторы состоят из недеформированных склоновых подводных вееров, аналогичных глубоководному бассейну Кампос в Бразилии.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Republic of Equatorial Guinea</kwd><kwd>geology</kwd><kwd>oil and gas</kwd><kwd>the Ceiba field</kwd><kwd>the Okume field</kwd><kwd>the Zafiro field</kwd><kwd>the Rio Muni Basin</kwd><kwd>the North Gabon Basin</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>Республика Экваториальная Гвинея</kwd><kwd>геология</kwd><kwd>нефтегазоносность</kwd><kwd>месторождение Сейба</kwd><kwd>месторождение Окуме</kwd><kwd>месторождение Зафиро</kwd><kwd>Бассейн Рио-Муни</kwd><kwd>Северо-Габонский бассейн</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Frynas G. 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