电磁波测井的混合波模型  

A MIXED WAVE MODEL FOR ELECTROMAGNETIC PROPAGATION TOOL

作　　者：冯启宁[1] 唐为清[1] 尚作源 

机构地区：[1]石油大学地球科学系,北京102200

出　　处：《地球物理学报》1993年第3期402-408,共7页Chinese Journal of Geophysics

摘　　要：本文提出一种混合波模型,用电偶极子和磁偶极子等效裂缝天线,兼顾了以往各种理论模型的优点.对胜利油田的电磁波测井(EPT)资料,分别用混合波模型和平面波模型求解得到的介电常数代入各种解释模型,计算储层的含水饱和度,再与实际岩芯测量建立的关系相比较,证明混合波理论模型更合理,解释结果更接近实际.This paper presents a mixed wave model which is equated to the sloted antenna with a electric dipole and a magnetic dipole. This model have an advantage over formerly models. EPT logs of Sheng-li oil field have been processed by means of the mixed wave model. Dielectric constants computed using the mixed wave and plane wave model are used to compute reservoir formation water saturation with general interpretation equation. The results of logging interpretation are compared with model derived from the measurement of actual cores. It is shown that the mixed wave model is more available than other models. The result from logging interpretation arc in good agreement with actual information.

关 键 词：电磁波 测井 混合波 模型 电偶极子 

分 类 号：P631.811[天文地球—地质矿产勘探]