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为了把振幅信息加入成像后的地震剖面,以一种十分先进的方式使用基尔霍夫型加权叠加法。例如这里有个真振幅叠前深度偏移(PreSDM)的例子,在这个例子中,所偏移的一次反射的振幅基本上代表与炮检距有关的反射系数的一种测量。对几个单一共炮检距剖面应用真振幅PreSDM,就可得到一个偏移剖面的道集,它直接适合于振幅随炮检距变化(AVO)的分析。真振幅偏移零炮检距(MZO)为基尔霍夫叠加提供了一个较近期的时间域的例子。这种成像处理把共炮检距剖面转化为模拟的零炮检距剖面,这种剖面的一次反射的几何扩散与实施实际零炮检距试验时的几何扩散相同。同时,它还保存了与炮检距有关的反射系数。由于从
In order to add the amplitude information to the imaged seismic section, the Kirchhoff-type weighted superposition method is used in a very advanced way. For example, here is an example of a true amplitude prestack depth offset (PreSDM). In this example, the amplitude of the offset primary reflection essentially represents a measure of the offset associated with the offset. Applying true amplitude PreSDM to several single common-off profiles, you get a set of offset profiles that are directly applicable to the analysis of the amplitude versus offset variation (AVO). True Amplitude Offset Zero Offset (MZO) provides an example of a more recent time domain for Kirchhoff stacking. This imaging process transforms the common-off profile into a simulated zero-offset profile that has the same primary diffusion as the geometric diffusion at the actual zero-offset test. At the same time, it also saves the reflection coefficient associated with the offset. Due to