Multiples: Signal or noise?
Multiples: Signal or noise?
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DOI：
10.1190/segam2014-1421.1
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发表时间：
2014-08
期刊：
影响因子：
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通讯作者：
A. Weglein
中科院分区：
文献类型：
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作者：
A. Weglein
偏移和偏移反演分别是确定构造和进行振幅分析的地震处理方法。迄今为止，最有根据的和物理上可解释的偏移方法是基于在时间等于零的深度处预测重合的源和接收器实验。我们已经扩展了非均匀介质的迁移方法，以适应在本地意义上的双向传播在每一个点从源到目标反射器和从反射器到接收器，并在全球意义上，分别为每一个从源到反射器和从反射器到接收器的两个腿。这提供了第一种偏移方法，该方法避免了成像原理中的高频假设及其实施方式，因此，它在目标或储层的所有频率下都同样有效。双向波传播偏移的这一进展，然后提供了一个工具，定量地，明确地，明确地定义…
ABSTRACTMigration and migration inversion are the seismic processing methods for structural determination and subsequent amplitude analysis, respectively. To date, the most well-founded and physically interpretable migration method is based on predicting a coincident source and receiver experiment at depth at time equals zero. We have extended that migration method for heterogeneous media and to accommodate two-way propagation in a local sense at every point from the source to the target reflector and back from the reflector to the receiver and in a global sense, separately for each of the two legs from the source to the reflector and from the reflector to the receiver. That provides the first migration method that avoids high-frequency assumptions in the imaging principle and how it is implemented, and hence, it is equally effective at all frequencies at the target or reservoir. This advance for two-way wave propagation migration then provides a tool to quantitatively, unambiguously, and definitively def...