感应测井趋肤效应校正方法讨论  

Discussion on skin effect correction in induction Log

作　　者：范利群[1,2] 夏光荣[1,2] 唐文君 孟令红 

机构地区：[1]长江大学地球物理学院 [2]中国石油川庆钻探工程有限公司测井公司 [3]中国石油延长油田股份有限公司南泥湾采油厂

出　　处：《石油仪器》2010年第3期51-53,55,共4页Petroleum Instruments

摘　　要：根据均匀介质中视电导率与介质电导率的关系,分析了感应测井几种趋肤效应校正方法。经分析可知,这几种方法的共同实质是,针对均匀介质在已知视电导率的情况下求介质电导率的近似解。几种方法中插值法简单直接,但易受人为因素影响;函数拟合法精度较低,适用范围有限;迭代法优于前两种方法。On the basis of the relation between apparent conductivity and the true conductivity in the homogeneous formation,skin effect correction methods are investigated.Analysis shows the theory essential of methods are same,and the approximately true conductivity in the homogeneous formation is calculated according to the apparent conductivity.The interpolation is a simple method,but it is easy influenced by the operator.The function fitting method's precision and applicability are limited.The iteration has higher precision than other methods.

关 键 词：感应测井 趋肤效应 视电导率 校正 

分 类 号：P631.81[天文地球—地质矿产勘探]