大介电常数地层中多分量感应测井响应研究  

Multi-component induction logging response in large dielectric formation

作　　者：洪德成[1] 杨善德[1] 

机构地区：[1]吉林大学物理学院,长春130012

出　　处：《物理学报》2011年第10期773-780,共8页Acta Physica Sinica

基　　金：吉林大学基础科研业务费(批准号:201100001)资助的课题~~

摘　　要：研究大介电常数对多分量感应测井的影响,并通过不同磁场分量的组合量来同时提取地层电阻率和介电常数以及地层纵向边界信息,实现地层参数的重构,直观识别烃源岩地层.Wireline induction logs operating at a frequency of some tens of kHz are used to detect the resistivity of hydrocarbon reservoir.The dielectric constant of typical formation is usually smaller than that of pure water and its effect is negligible for induction log.However some peculiar rocks including organic matter named source rock have large dielectric permittivities caused by polarization,which can lead the traditional induction logging to have an nusual log response.Multi-component induction logging is new log method and has been developed in nearly ten years,which can provide more information about formation than traditional axial instrument and has large potential applications.In this paper,we study the effect of large dielectric constant on multi-component induction logging response and extract the information about resistivity and dielectric permittivity through the different combinations,there by realizing the formation parameters reconstruction and intuitive recognition for the hydrocarbon source rock.

关 键 词：多分量感应测井 大介电常数 组合量 直观解释 

分 类 号：P631.81[天文地球—地质矿产勘探]