多元统计方法在井中激电异常解释中的应用效果

The way to reduce interpretation ambiguity of induced polarization logging

文章对钻孔岩性、矿化特征进行量化,应用了背景统计、聚类分析、因子分析方法,运用多元统计分析原理,结合井中激电多参数与地质信息,使异常解释更合理。在安徽省某铜钼矿井中激电勘查中,对井旁矿体引起的异常进行了合理解释。该方法的成功应用,为物探异常的解释提供了一个新的思路。

The way to reduce interpretation ambiguity of induced polarization logging by use of cluster analysis and factor analy- sis is introduced. During Mo geology prospecting of Anhui province, the induced polarization logging abnormality resulting from mineral body beside the well is discovered. The success application of induced polarization logging shows： during the geology prospecting of mineral body beside the well, the way of induced polarization logging is more effective than the ways of ground geophysical exploration; suitable mathematics method based on the geology can reduce interpretation ambiguity of induced polarization logging, which points out a new method to reduce interpretation ambiguity Of geophysical exploration.