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首页> 外文期刊>IEEE Transactions on Geoscience and Remote Sensing >Characterization of EM downhole-to-surface communication links
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Characterization of EM downhole-to-surface communication links

机译：EM井下至地面通信链路的表征

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摘要

A downhole-to-surface communication channel consisting of a long vertical cylinder (the stem) and an isolated downhole in-line cylinder (the electrode) embedded in a homogeneous Earth is considered in this work. A signal voltage is applied between the electrode and stem, and the received voltage is picked up at the surface between the stem and a ground point or between two ground points. The analysis includes consideration of conductor longitudinal and surface impedance, joint resistance, voltage source resistance, and Earth propagation effects to provide a realistic model for assessing the performance of the communication channel for measurement-while-drilling, drill stem testing, and production testing in oil and gas industry applications. Simulation results indicate that consideration of all of these effects is imperative for satisfactory modeling.
机译：在这项工作中，考虑了由长垂直圆柱体（杆）和嵌入均匀地球中的隔离井下直列圆柱体（电极）组成的井下地面连通通道。在电极和主干之间施加信号电压，并且在主干和接地点之间或两个接地点之间的表面上采集接收到的电压。该分析包括考虑导体的纵向和表面阻抗，接头电阻，电压源电阻和对地传播的影响，从而为评估随钻测量，钻杆测试和生产测试中的通信通道的性能提供了一个现实的模型。石油和天然气行业的应用。仿真结果表明，要想令人满意的建模，必须考虑所有这些影响。

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