| 基于NMM随钻电磁波传输信道特性分析 |
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| 引用本文： | 范业活,李威,聂在平,杨志强,孙向阳.基于NMM随钻电磁波传输信道特性分析[J].地球物理学报,2016,59(3):1125-1130. |
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| 作者姓名： | 范业活 李威 聂在平 杨志强 孙向阳 |
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| 作者单位： | 1. 电子科技大学, 成都 611731;2. 中国电波传播研究所, 河南 新乡 453003 |
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| 基金项目： | 国家自然科学基金项目(61231001)资助. |
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| 摘 要： | 基于数值模式匹配法(NMM)与源等效原理,建立了随钻电磁波传输理论模型,可以同时考虑介质的径向和轴向非均质性,便于分析套管、泥浆、高导层、高阻层对信号传输的影响.通过理论计算结果与试验结果对比,验证了理论模型的正确性.在此基础上对地层电阻率、工作频率、套管、泥浆、钻柱导电性、高导层和高阻层对信号传输的影响进行了计算分析.
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| 关 键 词： | 电磁波随钻测量 数值模式匹配法 等效原理 信道 |
| 收稿时间： | 2014-08-17 |
Analysis of EM-MWD channel based on NMM |
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| FAN Ye-Huo,LI Wei,NIE Zai-Ping,YANG Zhi-Qiang,SUN Xiang-Yang.Analysis of EM-MWD channel based on NMM[J].Chinese Journal of Geophysics,2016,59(3):1125-1130. |
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| Authors: | FAN Ye-Huo LI Wei NIE Zai-Ping YANG Zhi-Qiang SUN Xiang-Yang |
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| Institution: | 1. University of Electronic Science and Technology of China, Chengdu 611713, China;2. China Research Institute of Radiowave Propagation, Henan Xinxiang 453003, China |
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| Abstract: | In this paper, a theoretical model of EM-MWD has been set up based on the numerical mode matching method(NMM) and source equivalent principle. This model can consider radial and axial heterogeneities, and facilitate analysis of effects of casing, mud, high-conductivity layers, and high resistivity layers on signal transmission. The correctness of this theoretical model has been proved by calculation and field test. The influences of formation resistivity, working frequency, casing, drilling mud, pillar, high conductivity layers and high resistivity layers on the signal transmission are analyzed. |
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| Keywords: | EM-MWD NMM Equivalent principle Channel |
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