谱外推法原理和应用:菲律宾民都罗岛,地震数据

Q2 Earth and Planetary Sciences
Leading Edge Pub Date : 2023-01-01 DOI:10.1190/tle42010044.1
C. Puryear, R. Tharimela, D. Ray, V. Egorov, Graeme Baille, A. Hernandianto
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引用次数: 0

摘要

谱外推是一种带宽扩展技术,我们通过将带约束的谱反演、时变小波提取和目标宽带滤波相结合来实现。我们解释了频谱外推法作为一种有效的带宽扩展方法的原理,并演示了它在使用时变小波提取的二维菲律宾陆上遗留地震数据集中的应用,从而使频谱的频率范围增加了三倍。研究结果表明,绘制输入地震数据图像中不明显的复杂地层和地貌特征具有巨大潜力,从而产生储层分布和连通性信息,而这些信息通常对优化井位至关重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Spectral extrapolation principles and application: Mindoro Island, Philippines, seismic data
Spectral extrapolation is a bandwidth extension technique that we implement by combining spectral inversion with constraints, time-variant wavelet extraction, and targeted broadband filtering. We explain the principles of spectral extrapolation as a valid and effective bandwidth extension method and demonstrate its application to a 2D onshore Philippines legacy seismic data set using a time-variant wavelet extraction, resulting in a tripling of the frequency range of the spectrum. The results indicate significant potential for mapping complex stratigraphy and geomorphological features not evident on the input seismic data images, yielding information about reservoir distribution and connectivity that is often critical for optimal well placement.
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来源期刊
Leading Edge
Leading Edge Earth and Planetary Sciences-Geology
CiteScore
3.10
自引率
0.00%
发文量
180
期刊介绍: THE LEADING EDGE complements GEOPHYSICS, SEG"s peer-reviewed publication long unrivalled as the world"s most respected vehicle for dissemination of developments in exploration and development geophysics. TLE is a gateway publication, introducing new geophysical theory, instrumentation, and established practices to scientists in a wide range of geoscience disciplines. Most material is presented in a semitechnical manner that minimizes mathematical theory and emphasizes practical applications. TLE also serves as SEG"s publication venue for official society business.
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