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钻柱中声波传输系统样机的研制
引用本文:江正清.钻柱中声波传输系统样机的研制[J].石油机械,2012(12):17-20.
作者姓名:江正清
作者单位:胜利石油管理局钻井工艺研究院
基金项目:胜利石油管理局项目“直井无线随钻测量系统研制”(GC0803);胜利石油管理局博士后项目“钻柱中声波传播特性研究”(GKB0812)
摘    要:声波传输是一种具有极大潜力的井下信息无线传输技术。在方案设计的基础上,研制出基于钻柱信道的由井下声波发射装置和地面声波接收换能器组成的声波传输系统样机。开展了样机试验井试验,检验了声波传输系统样机的性能,测试了钻柱的频谱特性。通过试验井试验数据对声波在钻柱中传播的衰减、噪声和多途干扰等进行了分析,得到了井下无线信息传输系统的可用信号频率、编码方法等,证明用声波在钻柱上进行数据传输是可行的。

关 键 词:钻柱  声波传输  无线传输  样机  试验研究

Development of the Prototype of System for Acoustic Transmission in Drill String
Jiang Zhengqing.Development of the Prototype of System for Acoustic Transmission in Drill String[J].China Petroleum Machinery,2012(12):17-20.
Authors:Jiang Zhengqing
Affiliation:Jiang Zhengqing(Research Institute of Drilling Technology,Shengli Petroleum Administration)
Abstract:Acoustic transmission is a type of downhole information wireless transmission technology which has great potentials.On the basis of the scheme design,the drill string signal channel-based acoustic transmission system prototype was developed.It consists of downhole acoustic transmitter and ground acoustic receiving transducer.The test of the prototype was conducted in the test well.The prototype performance and the drill string spectral property were tested.Based on the test data of the test well,an analysis of the acoustic transmission attenuation,noise and multi-path interference in drill string was conducted.The usable signal frequency and coding method of the downhole wireless information transmission system were obtained.It has been proved that it is feasible to use acoustic waves to transmit data in drill string.
Keywords:drill string  acoustic transmission  wireless transmission  prototype  experimental study
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