短距离钻柱声波通讯技术研究
发布时间：2018-09-04 17:03
【摘要】：旋转导向钻井系统的核心是井下旋转导向钻井工具系统。测试元件将近钻头处电子仓内各种传感器的信息通过无线短程通讯传输给随钻测量系统?MWD)?最后由随钻测量仪将信息传输到地面操作台。而要将旋转的稳定平台中的数据传送到相对静止的MWD中,需要一种高速准确可靠的无线通讯技术。本文主要通过研宄声波的传输信息方式解决短距离信息传输问题。理论分析了声波的基础传播特性,以及在突变截面管和中间插管中的传播特性。为研究钻井中短距离钻柱的声波传输特性,本文通过实验室试验平台进行了声波传输试验,在1.28m钻柱上建立了一套短距离声波传输试验系统,对声波信号在短距离钻柱中的传输特性进行了试验。试验以方波为驱动信号,采用径向和轴向钻柱激励,激励频率从4Hz升高至60Hz?传感器安置于接收端各个不同位置;研究声波信号对驱动电压、激励方向、激振频率以及传感器测量方向等参数的敏感性。试验结果表明:声波信号在传输过程中有衰减并含有回波和大量噪声干扰,在井下工具能耗允许范围内可采用大电压供电、径向激励钻柱和传感器径向接收信息的方式。
[Abstract]:The core of rotary steering drilling system is downhole rotary steering drilling tool system. The information of various sensors in the electronic warehouse near the drill bit is transmitted to MWD by wireless short-range communication. Finally, the information is transmitted to the ground operation table by the measuring instrument while drilling. In order to transmit the data from the rotating stable platform to the relatively static MWD, a high speed, accurate and reliable wireless communication technology is needed. In this paper, the problem of short-distance information transmission is solved by studying the transmission method of acoustic wave. The basic propagation characteristics of sound wave and the propagation characteristics in the tube with abrupt cross section and in the middle tube are analyzed theoretically. In order to study the acoustic wave transmission characteristics of short distance drill string in drilling, the acoustic wave transmission test was carried out on the laboratory test platform, and a short distance acoustic wave transmission test system was established on 1.28 m drill string. The transmission characteristics of acoustic signals in short distance drill string are tested. The test used square wave as driving signal and used radial and axial drill string excitation. The excitation frequency increased from 4Hz to 60 Hz? The sensitivity of acoustic signal to driving voltage, excitation direction, excitation frequency and sensor measurement direction is studied. The experimental results show that the acoustic signal attenuates in the transmission process and contains echo and a large amount of noise interference. The method of large voltage power supply radial exciting drill string and radial receiving information of sensor can be used within the allowable energy consumption of underground tools.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE928
本文编号：2222802
[Abstract]:The core of rotary steering drilling system is downhole rotary steering drilling tool system. The information of various sensors in the electronic warehouse near the drill bit is transmitted to MWD by wireless short-range communication. Finally, the information is transmitted to the ground operation table by the measuring instrument while drilling. In order to transmit the data from the rotating stable platform to the relatively static MWD, a high speed, accurate and reliable wireless communication technology is needed. In this paper, the problem of short-distance information transmission is solved by studying the transmission method of acoustic wave. The basic propagation characteristics of sound wave and the propagation characteristics in the tube with abrupt cross section and in the middle tube are analyzed theoretically. In order to study the acoustic wave transmission characteristics of short distance drill string in drilling, the acoustic wave transmission test was carried out on the laboratory test platform, and a short distance acoustic wave transmission test system was established on 1.28 m drill string. The transmission characteristics of acoustic signals in short distance drill string are tested. The test used square wave as driving signal and used radial and axial drill string excitation. The excitation frequency increased from 4Hz to 60 Hz? The sensitivity of acoustic signal to driving voltage, excitation direction, excitation frequency and sensor measurement direction is studied. The experimental results show that the acoustic signal attenuates in the transmission process and contains echo and a large amount of noise interference. The method of large voltage power supply radial exciting drill string and radial receiving information of sensor can be used within the allowable energy consumption of underground tools.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TE928
【参考文献】
相关期刊论文 前10条
1 张辛耘;王敬农;郭彦军;;随钻测井技术进展和发展趋势[J];测井技术;2006年01期
2 杜勇;胡建斌;李艳萍;李艳潮;;声波传输测试技术在油田的应用[J];测控技术;2005年11期
3 秦绪英,肖立志,索佰峰;随钻测井技术最新进展及其应用[J];勘探地球物理进展;2003年04期
4 孙晓光,刘广智,冯遵城,路德明,李中玉,龙洪彬,马东升;油井参数声传输及井下发射控制[J];青岛海洋大学学报(自然科学版);1999年04期
5 李志刚;管志川;王以法;;随钻声波遥测及其关键问题分析[J];石油矿场机械;2008年09期
6 苏义脑;地质导向钻井技术概况及其在我国的研究进展[J];石油勘探与开发;2005年01期
7 赵国山;管志川;刘永旺;;声波在钻柱中的传播特性[J];中国石油大学学报(自然科学版);2010年01期
8 李志刚;管志川;王以法;;近钻头短距离声波通信[J];中国石油大学学报(自然科学版);2010年02期
9 高德利;21世纪油气钻井技术展望[J];石油化工动态;2000年02期
10 肖仕红;梁政;;旋转导向钻井技术发展现状及展望[J];石油机械;2006年04期
，本文编号：2222802
本文链接：https://www.wllwen.com/kejilunwen/shiyounenyuanlunwen/2222802.html
