随钻无线传输技术分析与比较

发布时间：2018-02-21 15:01

本文关键词： 随钻测量信号传输泥浆脉冲电磁波声波　出处：《测井技术》2016年04期 　论文类型：期刊论文

【摘要】：随钻无线传输方式主要有泥浆压力波、电磁波、声波3种。对3种传输方式的工作原理和影响信号传输的因素进行了分析和比较。泥浆脉冲传输方式深度适应强,但使用维护成本较高;电磁波传输方式受钻井介质影响小,可以用于气体、泡沫钻井,并能实现边堵漏边作业,且信号传输不依赖钻井介质循环,时效较高,但其传输衰减受地层电阻率影响较大,有些区块因信号衰减大无法完成全井段信号传输;声波传输方式不依赖钻井介质循环,可用于欠平衡钻井,且具有传输率高、受地层介质影响小的优势,但因信号衰减大,其传输深度受到限制。提高传输率与泥浆脉冲发生器的高温性能,增加电磁波转输方式和声波转输方式的传输深度是随钻无线传输技术的发展方向。
[Abstract]:There are three main modes of wireless transmission while drilling: mud pressure wave, electromagnetic wave and acoustic wave. The working principle of the three transmission modes and the factors affecting signal transmission are analyzed and compared. However, the cost of using and maintaining is high, the electromagnetic wave transmission mode is less affected by drilling medium, it can be used in gas and foam drilling, and it can realize the operation of plugging leakage while drilling, and the signal transmission does not depend on the circulation of drilling medium. However, its transmission attenuation is greatly affected by formation resistivity, and some blocks can not complete the signal transmission in the whole well due to the large signal attenuation. The acoustic transmission mode does not depend on drilling medium circulation, and can be used in underbalanced drilling, and has high transmission rate. The advantage of little influence by formation medium, but because the signal attenuates greatly, its transmission depth is limited, improve the transmission rate and the high temperature performance of mud pulse generator, Increasing the transmission depth of electromagnetic wave transmission mode and acoustic wave transmission mode is the development direction of wireless transmission while drilling technology.
【作者单位】：电子科技大学;中国电波传播研究所;
【分类号】：TE271;P631.81

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