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ＳＬＬＪ地区Ｅｓｓ４ 的冲积扇具有五层微沉积序列，本文利用从三维地震资料中提取的多种地震参数，首先对参数用Ｋ－Ｌ法压缩处理，然后与各层砂砾层厚度用最小二乘法拟合改造后，再进行主特征因子分析求取各微层序的钻井加权地震相因子值，并转化为地震相平面图，通过与钻井相、测井相三相综合分析，成功地将其转化为各微层序的沉积微相平面图。因此本文提供了一种从地震角度进行微沉积层序研究的方法，该方法对相似复杂地质体的沉积研究具有一定的借鉴意义
The alluvial fan of Ess4 in SLLJ area has five layers of micro-sedimentary sequence. In this paper, we use a variety of seismic parameters extracted from three-dimensional seismic data. The parameters are first compressed by K-L method and then the thickness of gravel layer is calculated by the least squares method After the reconstruction, the principal characteristic factor analysis is performed to obtain the phase-wise value of the drilling-weighted seismic phases of each micro-sequence and converted into the seismic facies plane map. Through comprehensive analysis of the three phases of drilling facies and logging facies, they are successfully transformed into Microfacies sedimentary microfacies plan. Therefore, this paper provides a method of micro-sedimentary sequence research from the perspective of earthquakes. This method is of some reference to the study of sedimentation of similar complex geological bodies