高频电磁波测井的灵敏度分析与特征识别方法(Ⅰ)——灵敏度分析  

The Sensitivity Analysis and Characteristic Recognition Method of the High Frequency Electromagnetic Wave Logging (Ⅰ) --Sensitivity analysis.

作　　者：邢光龙[1] 刘曼芬[1] 杨善德[1] 

机构地区：[1]吉林大学物理系

出　　处：《测井技术》2001年第5期354-357,共4页Well Logging Technology

基　　金：国家自然科学基金资助课题 (编号 497742 4 1 )

摘　　要：利用测井响应对地层参数的相对一次偏导数曲线 ,对高频电磁波测井的探测灵敏度进行了系统的考察分析 ,发现高频电磁波测井响应对地层纵向边界相当敏感 ,其敏感程度往往超过了对电参数的敏感程度 ,但对纵向边界的敏感反映区集中在边界附近的一个小区域里 ,除薄层外对电参数的敏感反映区主要集中在本层内 ,表明高频电磁波测井的分辨率是比较好的 。The detective sensitivity of high frequency electromagnetic wave logging (HFEL) has been investigated and analysed systematically in this paper by using the relative first derivative curves of log response to the formation parameters. As a result, it is found that the response of HFEL is very sensitive to layers boundary, and the sensitivity to layers boundary often surpasses that to electric parameter. The sensitive region to the layers boundary is mainly centralized in a small region near the boundary. The sensitive region to the electric parameter is mainly centralized in its layer except for the thin and laminated layers. The resolution of HFEL is higher, and the resolution of the phase shift curve is better than that of the amplitude ratio curve. keywods:high frequency electromagnetic wave logging phase shift amplitude ratio sensitivity resolution

关 键 词：高频电磁波测井 相位移 振幅比 灵敏度 分辨率 特征识别方法 

分 类 号：P631.813[天文地球—地质矿产勘探]