nznistuНауки о Земле и недропользованиеEarth sciences and subsoil use2686-99932686-7931Federal State Budget Educational Institution of Higher Education "Irkutsk National Research Technical University"10.21285/2686-9993-2025-48-4-406-417CUPPPInznistu-446Research ArticleСтатьиАнализ сейсмических атрибутов для характеристики нефтяных месторождений в осадочном бассейне Кот-д’ИвуарSeismic attribute analysis for oil field characterization in Côte d’Ivoire sedimentary basinhttps://orcid.org/0009-0000-8323-3755ОнамунД. Л. А.OnamounD. L. A.

Онамун Дезире Люсьен Айемун, аспирант, институт «Сибирская школа геонаук»

г. Иркутск

Désiré Lucien Ayémoun Onamoun, Postgraduate Student, Siberian School of Geosciences 

Irkutsk 

donamoun@gmail.comhttps://orcid.org/0000-0002-9178-1169ДмитриевА. Г.DmitrievA. G.

Дмитриев Александр Георгиевич, доктор геолого-минералогических наук, профессор, профессор-консультант департамента геофизики, институт «Сибирская школа геонаук» 

г. Иркутск 

Alexander G. Dmitriev, Dr. Sci. (Geol. & Mineral.), Professor, Consulting Professor of the Geophysics Department, Siberian School of Geosciences 

Irkutsk 

a.g.dmitriev@geo.istu.eduИркутский национальный исследовательский технический университетРоссияIrkutsk National Research Technical UniversityRussian Federation202516042026484406417Copyright © Онамун Д., Дмитриев А.Г., 20262026Онамун Д., Дмитриев А.Г.Onamoun D., Dmitriev A.G.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.nznj.ru/jour/article/view/446

Сейсмический атрибут можно определить как любой параметр или наблюдение, извлеченное из имеющихся сейсмических данных, которое прямо или косвенно способствует улучшению и углублению понимания обработки и интерпретации данных в разведке углеводородов. Действительно, сейсмические атрибуты помогают лучше понять в упрощенном, но более детальном виде геологические структуры, петрофизические свойства, содержание флюидов и их дифференциацию, чтобы определить их присутствие в коллекторах и пространственно-временное распределение подземных геологических элементов. Представленная работа основана на исследовании применения различных сейсмических атрибутов для выявления и характеристики нефтегазового потенциала лицензионного участка. Выбранный объект характеризуется как глубоководный конус выноса на концевом склоне туронского яруса на основе региональных сейсмических данных, а данные 3D-сейсмики, четко определяющие границы стратиграфической ловушки, указывают на вероятность насыщения углеводородами. Анализ динамических характеристик сейсмических волн подтвердил наличие нефтегазоносных признаков, что свидетельствует о хорошей перспективности резервуара. Исследование показало, как сейсмические атрибуты, извлеченные из 3D сейсмических данных, могут качественно предоставлять ценную информацию о геологических особенностях недр. Таким образом, проведенное исследование имеет большие перспективы для разведки углеводородов, основанные на результатах, полученных в ходе комбинированного анализа сейсмических атрибутов. Тем не менее, даже если данное исследование будет признано достаточным для бурения поисковой скважины, может быть полезно предложить и другие геофизические методы для интеграции в это исследование, которые могли бы улучшить оценку. Например, электрические методы известны своей эффективностью в прямом обнаружении флюидов в пластах и доказали свою эффективность на основании их применения в Западной Сибири в России.

A seismic attribute can be defined as any parameter or observation retrieved from available seismic data that directly or indirectly enhances and deepens understanding of data processing and interpretation in hydrocarbon exploration. Indeed, seismic attributes contribute to better understanding of geological structures, petrophysical properties, fluid content and their differentiation in a simplified but more detailed form that enables the determination of their presence in reservoirs as well as the spatiotemporal distribution of subsurface geological elements. This work studies the application of various seismic attributes to identify and describe the oil and gas potential of the license area. This site is characterized as a deepwater alluvial fan on the end-slope fan on the Turonian stage based on regional seismic data, whereas the 3D seismic data clearly determining the boundaries of the stratigraphic trap indicate the likelihood of hydrocarbon saturation. Analysis of dynamic characteristics of seismic waves confirmed the presence of oil and gas-bearing indicators that imply the high potential of the reservoir. The study showed how seismic attributes retrieved from 3D seismic data can qualitatively provide valuable information about subsurface geological features. This, research is highly promising for hydrocarbon exploration based on the results of the combined seismic attribute analysis. However, even if this study is deemed sufficient for drilling an exploratory well, it may be useful to propose other geophysical methods to be integrated into this study that could improve the assessment. For example, electrical methods are known for their effectiveness in direct detecting of fluids in reservoirs and have proven their efficiency in Western Siberia, Russia.

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