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多年来,鉴于反射系数所含的重要信息内容,因此它一直是传统的反褶积方法的主要目标.本文提出了一种估算地震反射系数的方法,这种方法只寻找它们的幅度及时间位置,而且不带其它任何限制性假设.输入资料必须满足某些质量要求,例如振幅和几乎是零相位的噪音——伴随波、鸣震、长周期多次波等,并且还要用常规的处理方法压掉绕射波.文中提出的算法能把频率域地震道谱与反射率之间的差别的影响降低到最低.采用多维牛顿-拉夫森法迭代计算反射系数及与其一致的“子波”.剩余误差道揭示了算法的特性.于是,从这些反射系数中得到了不少好处,例如把它们与钻井测井曲线或者速度分析曲线进行最佳对比,从而能够完成层速度的转换。本方法能够在详细的地层解释中应用,或者用来改善常规速度分析的分辨率。
For many years, it has been the main objective of the traditional deconvolution method given the important information contained in the reflection coefficient.This paper presents a method to estimate the seismic reflection coefficient, which only looks for their amplitude and temporal location , Without any other restrictive assumptions. The input data must meet certain quality requirements such as amplitude and almost zero phase noise - accompanying waves, squeaking, long period multiples, etc., and also using conventional processing Method is used to suppress the diffracted waves.The algorithm proposed in this paper can minimize the influence of the difference between the frequency spectrum spectrum and the reflectivity.By using the multidimensional Newton-Raphson method to iteratively calculate the reflection coefficient and its consistent “wavelet” The remaining error traces reveal the nature of the algorithm, so many benefits are derived from these reflection coefficients, such as optimal contrasting of well logs or velocity profiles to complete layer velocity transitions. The method can be applied in detailed formation interpretation or used to improve the resolution of conventional velocity analysis.