| 阵列偶极源辐射场在导电地层中传播的方向特性 |
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| 引用本文： | 王安玲,刘福平,刘传虎,杨长春.阵列偶极源辐射场在导电地层中传播的方向特性[J].地球物理学进展,2005,20(4):1160-1163. |
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| 作者姓名： | 王安玲 刘福平 刘传虎 杨长春 |
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| 作者单位： | 北京印刷学院基础部,北京,102600;北京印刷学院基础部,北京,102600;中国科学院地质与地球物理研究所,北京,100029;胜利石油管理局新疆勘探处,东营,257001;中国科学院地质与地球物理研究所,北京,100029 |
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| 基金项目： | 中国科学院知识创新工程项目;北京印刷学院校科研和教改项目 |
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| 摘 要： | 利用电偶极子辐射场的矢势导出了阵列偶极子在导电媒质中辐射场的一般形式，所给出的公式不仅适用于近区、感应区，而且还适用于远区.对阵列偶极子辐射场的相干特性进行了详细的讨论，由所得结果可知，对层状地层通过选择适当的方位可使接收到的电磁信号达到极大，极大值的大小与偶极源的个数成正比.本文的研究对解决地层中电磁信号衰减严重问题提供了一种可能的解决办法.
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| 关 键 词： | 阵列偶极子 井间电磁测井 方向特性 |
| 文章编号： | 1004-2903（2005）04-1160-04 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2005-04-11 |
The direction characteristic of radiation wave of array dipole source in the conductive strata |
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| WANG An-ling,LIU Fu-ping,LIU Chuan-hu,YANG Chang-chun.The direction characteristic of radiation wave of array dipole source in the conductive strata[J].Progress in Geophysics,2005,20(4):1160-1163. |
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| Authors: | WANG An-ling LIU Fu-ping LIU Chuan-hu YANG Chang-chun |
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| Abstract: | When the double and array dipoles are put in the conductive media, the formula of radiation field of them have been derived from vector potential equation of single dipole. The formula is not only suitable for near-field but also for induced-field and far-field. In this paper, the interferential characters of radiation field of array dipoles are discussed in detail. From the result, we can know that the strongest electromagnetic signal can be obtained by choosing the azimuth for the layer stratum, and we also know that the signal is direct ratio with the number of array dipoles, which may be applied to resolving attenuation problem of electromagnetic signal for crosshole electromagnetic logging. |
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| Keywords: | array dipoles crosshole electromagnetic logging direction characteristic |
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