基于几种不同岩芯的频谱参数研究  

Research of Spectrum Parameter based on Several Cores

作　　者：李鹏飞[1] 黄诚[1] 

机构地区：[1]中国石油塔里木油田分公司勘探开发研究院

出　　处：《国外测井技术》2016年第2期31-34,3,共4页World Well Logging Technology

摘　　要：岩石的导电特性可分为直流与交流,这里着重讨论其交流特性即频散特性。利用SI-1260阻抗分析仪在室温常压下对几种不同岩性的饱和岩芯进行复电阻率扫频测量,并对测量结果进行研究分析发现:砂岩,页岩,白云岩的频谱参数存在较大差别,这可能与其所含矿物成分以及沉积环境等有关。其对使用复电阻率测井识别各类岩性具有重要的指导与借鉴意义。The conductive property of rocks can be divided into DC and AC. Focus is laid on the AC property(dispersion property) in this paper.The complex resistivity sweep frequency measurement experiments are carried out on several saturated cores of different kinds at indoor temperature and atmospheric pressure with the SI1260 impedance analyzer. Results indicate that there is big difference in sandstone,shale, dolomite spectrum parameters which may be connected with mineral composition and sedimentary environment. It is of significance and reference for identifying lithology by complex resistivity logging.

关 键 词：频散特性 复电阻率 沉积环境 测井 

分 类 号：P631.811[天文地球—地质矿产勘探]