北京航空航天大学学报 ›› 2010, Vol. 36 ›› Issue (2): 210-213.

• 论文 • 上一篇    下一篇

一种新型井眼轨迹连续测量方法

张延顺, 王 月   

  1. 北京航空航天大学 仪器科学与光电工程学院, 北京 100191
  • 收稿日期:2009-01-12 出版日期:2010-02-28 发布日期:2010-09-13
  • 作者简介:张延顺(1973-),男,黑龙江肇东人,副教授,zhangyanshun@buaa.edu.cn.
  • 基金资助:

    国家863高技术研究发展计划基金资助项目(2006AA06Z223,2007AA12Z327)

New method of continuous well trajectory measurement

Zhang Yanshun, Wang Yue   

  1. School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2009-01-12 Online:2010-02-28 Published:2010-09-13

摘要: 为实现井眼轨迹自主、高精度测量,提出了基于改进航向姿态参考系统的井眼轨迹测量方案,采用2个单自由度陀螺仪和3个加速度计组成惯性测量单元,由惯性测量单元输出数据计算姿态角,在此基础上利用放下井绳长度已知的特点,采用空间坐标积分的方法,计算井眼轨迹的三维位置信息.仿真结果表明:算法克服了惯性导航定位误差随时间发散的缺点,有很高的定位精度.所述方案减小了测斜仪的体积,降低了成本和功耗,适于井下应用.

Abstract: To achieve autonomous high-precision well trajectory measurements a well trajectory measurement program based on an improved attitude heading reference system including two gyroscopes and three accelerometers to form inertial measurement unit was proposed. The attitude angles could be gained by the output data from the inertial measurement unit, and then three-dimensional position of the well trajectory could be computed with the known length of the rope used spacial integral. The simulation results show that the algorithm overcomes the shortcomings of the emanative inertial navigation position error over time and has high position accuracy, the scheme reduces the volume of the inclinometer, lower cost and power consumption so that it is suitable for the well trajectory.

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