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在分析和解释准噶尔盆地东部阜东斜坡带速度谱资料的基础上,结合根据钻井、测井资料建立的本区两种精细砂泥岩压实模型,利用地震速度岩性解释系统(VLIS)进行了层速度转换、谱算层速度校正及砂岩指数计算误差平滑和校正,并分别计算了中上侏罗统石树沟群的层速度和砂岩指数。通过对研究区地震相和沉积相特征的分析认为,本区砂岩指数高值区与前积、充填相等对应,表明本区物源主要来自东北方向,这就为阜东斜坡带有利储集相带的预测提供了依据。
Based on the analysis and interpretation of the velocity profiles of the Fudong slope belt in the eastern part of the Junggar Basin and the compaction models of two fine sand and mudstone zones in the area based on drilling and well logging data and using the lithological interpretation system of seismic velocity (VLIS) Layer velocity conversion, spectral velocity correction and calculation of sandstone index error correction and smoothing, and calculate the Middle-Upper Jurassic Shushucao layer velocity and sandstone index. Based on the analysis of the characteristics of seismic facies and sedimentary facies in the study area, it is concluded that the high value area of sandstone index in this area corresponds to the previous product and filling, indicating that the source of this area mainly comes from northeast, Belt prediction provided the basis.