钻探工程2025，Vol.52Issue(4)：54-60,7.DOI:10.12143/j.ztgc.2025.04.007
基于方位角测量误差分析的钻具磁化磁场实验研究
Experiment study on the magnetized magnetic field of drilling tools based on azimuth measurement error analysis
摘要
Abstract
Azimuth is a key parameter in well trajectory description,but the conventional measurement with MWD usually exists errors because of the complex geomagnetic field and magnetic field interference.To investigate the impact of bottom hole assembly(BHA)magnetic field interference on azimuth measurement,the interference magnetic field of different drilling tools were measured with a portable magnetometer.On the basis of the interference magnetic field experiment measurement,magnetic pole strength of different drilling tools can be acquired through the data fitting method.With the magnetic pole strength,the interference magnetic field strength can be calculated using the superposition principle,and the azimuth error induced by the interference magnetic field was quantitatively analyzed.According to the experiment results,the interference magnetic field strength along the drilling tool axis exponentially decreases with the added distance and finally goes to zero.Compared to the traditional methods,azimuth error correction using the magnetic pole strengths of drilling tools in this study is more direct and convenient.关键词
方位角测量/钻具磁干扰/磁极强度/误差校正Key words
azimuth measurement/magnetic interference of drilling tools/magnetic pole strength/error correction分类
石油、天然气工程引用本文复制引用
姜天杰,菅光霄,刘峰,秦璐,高名浩,王姣姣,孟庆威..基于方位角测量误差分析的钻具磁化磁场实验研究[J].钻探工程,2025,52(4):54-60,7.基金项目
中国海洋石油集团有限公司重点攻关项目"中国海油旋转导向谱系化技术与产业化研究"(编号:KJGG-2022-1402) （编号:KJGG-2022-1402）
