山东胶东地区为多期次岩浆活动与变质作用的产物,岩石以变质岩和岩浆岩为主。由于构造活动频繁,且处于断裂带上,岩石破碎带发育。本次科学钻探测井分析的主要任务是岩性识别与破碎带识别和划分。首先围绕岩性识别研究了多种测井交会图技术,实现了研究区钻遇的变辉长岩、片麻岩、二长花岗岩等的岩性识别,并总结了其测井响应特征。针对裂缝和破碎带分析,提出了应用主成分分析方法,并且识别结果与岩芯描述比较一致。上述岩性分析和裂缝、破碎带的测井解释结果对寻找黄铁矿石英脉起到较为重要的作用,也为综合地质信息的研究提供了可靠资料和依据。 Shandong Jiaodong area is a product of multi-stage magmatic activity and metamorphism, and the rocks are dominated by metamorphic rocks and magmatic rocks. As the tectonic activity is frequent, and in the fault zone, rock broken zone development. The main tasks of this scientific drilling logging analysis are lithology identification and fracturing zone identification and classification. Firstly, a variety of cross-plot mapping techniques have been studied around lithology identification, lithology recognition of gabbro, gneiss and monzogranite encountered in the study area has been realized, and their logging response characteristics have been summarized. For the analysis of fractures and fractures, the principal component analysis (PCA) method is proposed, and the recognition results are consistent with the core description. The above lithology analysis and interpretation of fractured and fractured zones log interpretation play an important role in finding pyrite vein, and provide reliable data and basis for the study of comprehensive geological information.