垂直姿态位置误差的虚拟正交建模与均衡补偿

发布时间：2018-01-12 13:05

本文关键词：垂直姿态位置误差的虚拟正交建模与均衡补偿　出处：《石油学报》2017年07期 　论文类型：期刊论文

【摘要】：垂直钻井工具的姿态测量系统中,轴不正交、不同轴、安装和加工等产生的非线性位置误差显著降低了测量精度。基于各实轴独立的概念,分别以各实轴为中心构造3个虚拟正交仪器坐标系,综合推导出包含9个位置误差参数的姿态测量输出方程。分析补偿校正矩阵的精度影响以及常规校正方法的补偿矩阵数值精度,提出一种校正取值均衡方法,并进行补偿测试。测试结果表明:与常规最大值补偿相比,均衡补偿方法使得垂直姿态的测量精度提高5倍以上,并可消除周期性系统误差。
[Abstract]:In the attitude measurement system of vertical drilling tools, the nonlinear position error caused by different shafts, different shafts, installation and machining, and so on, has significantly reduced the measurement accuracy, based on the concept of independence of each real axis. Three virtual orthogonal instrument coordinate systems are constructed with each real axis as the center. The output equation of attitude measurement including nine position error parameters is derived synthetically. The influence of compensation correction matrix accuracy and the numerical accuracy of conventional correction method are analyzed. A correction equalization method is proposed. The test results show that the equalization compensation method can improve the measurement accuracy of vertical attitude by more than 5 times and eliminate the periodic system error compared with the conventional maximum compensation method.
【作者单位】：陕西省油气井测控技术重点实验室;光电油气测井与检测教育部重点实验室;
【基金】：国家自然科学基金项目(No.61174191,No.51604226) 中国石油天然气股份有限公司科技创新基金项目(2015D-5006-0307)资助
【分类号】：TE92;TP212.9
【正文快照】： 引用:程贤箬,程为彬,高怡,甘源滢,刘峰,汪跃龙.垂直姿态位置误差的虚拟正交建模与均衡补偿[J].石油学报,2017,38(7):840-845.Cite:CHENG Xianruo,CHENG Weibin,GAO Yi,GAN Yuanying,LIU Feng,WANG Yuelong.Virtual orthogonal modeling of verti-cal-posture position error a

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