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水平磁偶极子在薄交互地层中的电流流动特性分析 被引量:2

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摘要 本文从三正交系发射线圈设计出发,通过建立均匀地层和非均匀地层模型,对水平方向放置的发射线圈应用COMSOL有限元软件进行模拟仿真,分析其产生的电流流动特性规律。结果表明:当发射源处于薄层中时,薄交互层面处会产生电流涡流。电流在穿过薄层与围岩时,会出现明显的折射和透射现象。而当围岩与薄层之间电导率对比度变小时,电流线形状会趋近于在均匀地层中的情形。薄层厚度增大且发射源位于薄层中时,薄层交界面处的涡流影响会逐渐减小。本文的研究成果,对进一步分析三维感应测井仪器在薄交互层中电磁响应机理提供了理论基础。
作者 仵杰 许亮
出处 《国外测井技术》 2013年第1期11-13,共3页 World Well Logging Technology
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