Russian Journal of Earth Sciences Russian Journal of Earth Sciences Russian Journal of Earth Sciences 1681-1208 54909 10.2205/2023ES000837 ОРИГИНАЛЬНЫЕ СТАТЬИ ORIGINAL ARTICLES ОРИГИНАЛЬНЫЕ СТАТЬИ Vector-Based Seismic Decomposition by Reverse Time Methods Векторная декомпозиция сейсмических данных методами волнового обращения во времени https://orcid.org/0000-0003-1943-7504 Агафонов Вадим Михайлович Agafonov Vadim Mihaylovich Agvadim@yandex.ru

кандидат физико-математических наук;

candidate of physical and mathematical sciences;

 Бугаев Александр Степанович Bugaev Aleksandr Stepanovich bugaev@clipre.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 https://orcid.org/0000-0001-7656-9496 Ерохин Геннадий Николаевич Erokhin Gennadiy Nikolaevich gerokhin@kantiana.ru

доктор физико-математических наук;

doctor of physical and mathematical sciences;

 https://orcid.org/0000-0002-8903-3508 Ронжин Андрей Леонидович Ronzhin Andrey Leonidovich ООО «Р-Сенсор» Россия ООО «Р-Сенсор» Russian Federation ИРЭ им. В. А. Котельникова РАН Россия ИРЭ им. В. А. Котельникова РАН Russian Federation Балтийский федеральный университет им. Иммануила Канта Immanuel Kant Baltic Federal University СПбФИЦ РАН Россия СПбФИЦ РАН Russian Federation 11 09 2023 11 09 2023 23 3 1 16 05 11 2022 23 01 2023 https://ras.editorum.ru/en/nauka/article/54909/view

В работе анализируется декомпозиция исходных сейсмических данных методами волнового обращения во времени для построения сейсмических атрибутов. В рамках формального подхода к декомпозиции, как к отображению данных одного пространства в данные пространства большей размерности, дается классификация существующих методов сейсморазведки. Выделение этапа декомпозиции в обработке сейсмических данных позволяет упорядочить существующие направления исследований в этой области сейсморазведки и оценить перспективы. Подробно анализируется векторная декомпозиция, являющаяся основой нового метода сейсмической обработки данных Reverse Time Holography (RTH). Метод RTH включает, как частный случай, метод глубинной миграции, метод анализа амплитуд отражения от удалений, метод акустической инверсии и является альтернативой методу оценки скоростей на основе миграции и методу полного волнового обращения. Отмечена тесная связь техники обращения волнового фронта во времени в сейсморазведке с аналогичным обращением в оптике и акустике. Многообразие глубинных сейсмических атрибутов, получаемых в методе RTH на основе векторной декомпозиции, позволяет решать широкий круг практических задач поиска и разработки месторождений углеводородов на новом качественном уровне. Метод RTH успешно опробован на 21 месторождении углеводородов в различных нефтегазоносных провинциях РФ.

The paper analyzes the decomposition of the initial seismic data by the methods of wave reversal in time when constructing seismic attributes. Within the framework of a formal approach to decomposition, as a mapping of data from one space into data of a larger dimension, a classification of existing seismic survey methods is given. Separation of the stage of decomposition in seismic data processing makes it possible to streamline the existing directions of research in this area of seismic exploration. The vector decomposition, which is the basis of a new method of seismic data processing Reverse Time Holography (RTH), is analyzed in detail. The RTH method includes, as a special case, the depth migration method, the offset reflection amplitude analysis method, the acoustic inversion method, and is an alternative to the migration-based velocity estimation method and the full wave inversion method. A close connection between the technique of wavefront time reversal in seismic exploration and analogous time reversal in optics and acoustics is noted. The variety of deep seismic attributes obtained in the RTH method based on vector decomposition makes it possible to solve a wide range of practical problems of prospecting and developing hydrocarbon deposits at a new qualitative level. The RTH method has been successfully tested at 21 hydrocarbon fields in various oil and gas provinces of the Russian Federation.

 сейсморазведка обращение во времени рассеяние сейсмические атрибуты декомпозиция seismic time reverse scattering seismic attributes migration decomposition Исследование выполнено при поддержке гранта Российского научного фонда № 22-69-00231, https://rscf.ru/project/22-69-00231/ The study was supported by the Russian Science Foundation grant No. 22-69-00231, https://rscf.ru/en/project/22-69-00231/.

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