带驱替线圈法全直径岩心电参数测量系统  

A New Electric Parameter Measurement System with Coiled Sonde for Full Diameter Cores

作　　者：柯文俊[1] 柯式镇[1] 姜明[1] 陶婕[1] 王维[1] 马连刚[1] 

机构地区：[1]中国石油大学(北京)地球物理与信息工程学院,北京102249

出　　处：《石油天然气学报》2014年第10期82-86,6-7,共5页Journal of Oil and Gas Technology

基　　金：国家"十二五"油气重大专项(2011ZX05020-009)

摘　　要：为了解决岩石物理试验中用电极法测量小岩心电参数精度小和不能真实全面反映地层实际信息的问题,目前常用的解决方法是线圈法测量全直径岩心。设计了带驱替全直径岩心电参数测量系统,通过改变岩心夹持器的结构,将发射和接收线圈置于岩心的两侧,利用电磁波传播原理测量岩心电参数。此外,该系统中加上了温度控制单元、压力控制单元等,不仅可以解决传统线圈法全直径岩心测量系统中由于岩心中空不能完成驱替试验改变岩心含水饱和度的弊端,还可以模拟地层的高温高压环境,来测量岩心的电参数,测量的数据更能真实反映地下岩石的性质。To solve the problems of finding the low precision of electric parameter of small cores measured with electric sonda in rock physical experiment and the true information being not reflected totally,the conventional method for solving the problems was to measure the full diameter cores using coiled sonda.A measuring system with full displacement for electric parameters of full diameter cores was designed,by changing the structure of the core holder,the transmitting and receiving coils were placed on both sides of the cores,the electromagnetic wave transmission theory was used to measure its electrical parameters.In addition the system was coupled with the temperature control unit and pressure control unit etc,it not only can solve the problem that traditional coil method measuring system can not complete displacement experiment,but also can simulate the formation in high temperature and pressure environment to measure the electrical parameters of the cores,the measured data are more accurate and true for reflecting the property of down hole rocks.

关 键 词：线圈法 驱替 高温高压 岩心夹持器 测量系统 

分 类 号：P618.13[天文地球—矿床学]