This article describes the basic principles of spectrum decomposition,and In the carboniferous Tai1 well area as the study area,make use of the basic method of the three kinds of patterns that frequency tunning data volume,volume recon and the tuning map spectrum decomposition technique in Junggar Basin Carboniferous igneous reservoir exploration application were studied, and the spectrum decomposition technique and structure, sedimentary background combined prediction of reservoir beneficial range, guide Tai1 well area of exploration and development.% 本文介绍频谱分解的基本原理，并以台1井区为研究区域，分别使用调谐体、体搜索和调谐图三种模式的基本方法对频谱分解技术在准噶尔盆地石炭系火成岩油气藏勘探应用进行了研究，并通过频谱分解技术与构造、沉积背景相结合预测油藏有利范围，指导台1井区的勘探开发。
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