金属套管对井间电磁测井的影响  

Effects of casing on crosswell electromagnetic logging

作　　者：栗建军[1] 孟凡顺[1] 孟恩[1] 

机构地区：[1]中国海洋大学

出　　处：《石油物探》2003年第2期256-260,共5页Geophysical Prospecting For Petroleum

基　　金：国家自然科学基金 ( 40 1740 30 );山东省自然科学基金(Y2 0 0 0E0 5 )资助项目

摘　　要：以电磁场理论为基础 ,导出了过套管进行井间电磁测井问题的理论公式 ,并用低频电磁波进行了数值模拟 ,分析了套管对井间电磁测井的影响。结果表明 ,用低频电磁波过套管测量地层电阻率的井间测井方法是可行的。该理论可为套管井井间电磁测井仪器的研制。Based on electromagnetic field theory, this paper derived the theoretical formulae used for crosswell formation resistivity logging in cased hole, conducted numerical simulation with low frequency electromagnetic wave, and analyzed the effects of casing on crosswell resistivity logging. It showed that it is feasible to measure the formation resistivity using low frequency electromagnetic wave between wells. The results provide a theoretical foundation for the interpretation of cased well logging data, the study of crosswell electromagnetic tomography, and the development of logging tools.

关 键 词：电磁场理论 电磁测井 低频电磁波 数值模拟 金属套管 井仪器 成像技术 测井解释 

分 类 号：P631.811[天文地球—地质矿产勘探]