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Research on the influence law and suppression methods of seismic wavelet time-varying nature on seismic data processing

机译：地震数据处理地震小波时变性的影响法和抑制方法研究

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摘要

To adjust to the development of dynamic prediction of oil and gas reservoir, exploration of subtle reservoir, exploration and development of thin interbeds, processed seismic profiles are required to be of high signal to noise ratio, high resolution and high fidelity. While the time-varying wavelet in seismic data is an important factor affecting the quality of seismic profiles, for the purpose of improving the effects of seismic data processing, the influence law of wavelet time-varying nature is necessarily to be analyzed and researched, so that the time-varying wavelet can be suppressed based on more targeted methods. In the paper, the formation mechanism of time-varying nature is studied, and the influence law of time-varying wavelet is analyzed in detail, which is different in various links of seismic data processing, including amplitude compensation, pre-stack deconvolution, post-stack deconvolution and migration. Meanwhile the methods and application effects for suppressing wavelet time-varying nature in every link are summarized, and the advantages and disadvantages of these approaches are concluded through analysis and comparison, so that the development direction of researching more effective methods for suppressing or eliminating wavelet time-varying nature in the future is pointed out.
机译：为了调整油气藏动态预测的动态预测，对细微储层的探索，薄夹层的勘探和开发，加工的地震型材需要高信噪比，高分辨率和高保真度。虽然地震数据中的时变小波是影响地震型材质量的重要因素，但为了提高地震数据处理的影响，必须分析和研究小波时变性的影响规律，所以可以基于更多目标方法来抑制时变小波。在本文中，研究了时变性质的形成机制，详细分析了时变小波的影响规律，其各种地震数据处理链接不同，包括幅度补偿，堆叠堆积屑，柱子-Stack解卷积和迁移。同时总结了对每个环节中抑制小波时变性的方法和应用效果，通过分析和比较结束了这些方法的优点和缺点，使得研究更有效的抑制或消除小波时间的发展方向 - 未来的性质被指出。

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