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ISSN
2224-5278Область исследования
Тип исследования
Аннотация (краткое описание)
Field seismic records are often incomplete due to missing data. Recovery of missing seismic data is necessary for the processing and interpretation of seismic data. As an efective solution to this problem, the paper considers reflection seismic methods for acquisition and processing based on Compressive seismic acquisition (CSA), compressive seismic reconstruction (CSR) and simultaneous source shooting (blended). The capabilities and geological problems that can be solved by each of the above methods are considered separately, as well as in the case of their complex application. The factual basis of the conducted research was made up of a wide range of scientific publications, including the experimental results of the application of these methods. The method of CSA is based on the principle of compressive sensing (CS), allows to carry out seismic survey with irregular indexing (arrangement of receiver and shot points) and is applicable to any geometry and design of survey. The fundamental concept behind CS is non-uniformly sampling the seismic data to let normally coherent aliased energy become incoherently sampled while maintaining the coherent sampling of seismic signal. The method of reconstructing seismic data from insufficiently selected or missing traces is based on the extension to POCS (Projection Onto Convex Sets) interpolation method. The main idea of this approach difers significantly from many previous interpolation methods, since it considers the reconstruction of seismic data as a task of obtaining high-resolution images in «computer vision» and directly indicates the hidden relationship between incomplete and complete seismic data, even with irregular indexing, according to a number of specific criteria and algorithms. Thus, compressive reconstruction of seismic data helps to convert incomplete input seismic data into complete ones. With the simultaneous source shooting method several sources of seismic energy located at various shot points get triggered one after another within few seconds allowing to save enormous time resources by eliminating the wait time between source recordings. All three methods described in this paper standout due to their focus on optimizing the production of field seismic surveys and improving image quality even with a smaller number of receiver stations for elastic vibrations and overlaying signal from various source points. Given the significant advantages of these methods, they can be considered as next generation reflection seismic technologies for operational efectiveness and high-resolution seismic recording. © 2022, National Academy of Sciences of the Republic of Kazakhstan. All rights reserved.DOI
10.32014/2022.2518-170X.205Тип публикаций
Практическое значение
Практическое значение статьи заключается в возможности применения современных методов сейсмической съемки и восстановления данных для повышения эффективности геофизических исследований. Рассмотренные подходы позволяют сокращать время проведения сейсморазведочных работ, уменьшать объем регистрируемых данных, восстанавливать пропущенные или неполные сейсмические записи и улучшать качество последующей обработки и интерпретации. Полученные результаты могут быть использованы при планировании сейсморазведочных работ и оптимизации технологий изучения геологического строения недр.Квартиль
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