| 海洋电磁勘探中空气波相互作用机制和水深影响分析 |
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| 引用本文： | 沈金松,詹林森,王鹏飞,马超,连福明.海洋电磁勘探中空气波相互作用机制和水深影响分析[J].中国石油大学学报(自然科学版),2011(6):51-58. |
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| 作者姓名： | 沈金松 詹林森 王鹏飞 马超 连福明 |
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| 作者单位： | 中国石油大学地球物理与信息工程学院;中国石油大学油气资源与探测国家重点实验室;中国石油大学中国石油集团公司物探重点实验室; |
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| 基金项目： | 国家“973”重点基础研究发展计划项目(2007CB209607); 中国石油天然气集团公司基础研究项目(07A10303) |
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| 摘 要： | 基于一维层状介质的电磁位和电磁场分析,采用电磁场的模式分解理论建立空气、海水层和海底地层之间的电磁场相互作用关系.以假想无限水深模型和五层介质模型为基础,导出水平电偶极子(HED)的横电(TE)和横磁(TM)模式的电磁场数学关系,分析空气波占优的临界偏移距随水深和海底地层电导率的变化规律,指出前人定义的300 m水深作...
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| 关 键 词： | 电磁勘探 电磁场 电磁波 电导率 空气波相互作用 模式分解 层状介质模型 |
Analysis of air wave interaction mechanism and effect of sea water depth on electromagnetic prospecting |
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| SHEN Jin-song,,ZHAN Lin-sen,WANG Peng-fei,MA Chao,LIAN Fu-ming.Analysis of air wave interaction mechanism and effect of sea water depth on electromagnetic prospecting[J].Journal of China University of Petroleum,2011(6):51-58. |
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| Authors: | SHEN Jin-song ZHAN Lin-sen WANG Peng-fei MA Chao LIAN Fu-ming |
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| Institution: | SHEN Jin-song1,2,3,ZHAN Lin-sen1,WANG Peng-fei1,MA Chao1,LIAN Fu-ming1 (1.College of Geophysics and Information Engineering in China University of Petroleum,Beijing 102249,China,2.State Key Laboratory of Petroleum Resource and Prospecting in China University of Petroleum,3.CNPC Key Physical Exploration Laboratory in China University of Petroleum,China) |
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| Abstract: | Based on the analysis of electromagnetic(EM) potential and electromagnetic field of 1D layer model,the interaction relationships of EM fields among air,sea water layer and undersea formation were established by using mode decomposition theory of EM field.Based on the presumed infinite sea water model and five-layer model,the EM field expressions of the TE and TM modes which were decomposed from the EM responses excited by the horizontal electric dipole(HED) source were derived.The variation laws of critical... |
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| Keywords: | electromagnetic prospecting electromagnetic field electromagnetic waves electric conductivity air wave interaction mode decomposition layer medium model |
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