中国石油大学学报（自然科学版）2012，Vol.36Issue(3)：93-97,107,6.DOI:10.3969/j.issn.1673-5005.2012.03.015
捷联式旋转导向井斜方位动态解算方法
Dynamic solution approach to inclination and azimuth of strap-down rotary steerable system
摘要
Abstract
According to strap-down vertical drilling field test, the playback analysis on underground storage of the measurement system was curried out. A dynamic resolution approach to inclination and azimuth of strap-down rotary steerable system was proposed, that is, with non rotating string, filtered real time signals on three-axis was all used for calculation, al the same time, filtered signals on x-axis, y-axis were stored. On the condition of rotation string, real time filtered signals on x-axis and stored signals of x-axis, y-axis with non-rotating string were adopted. In addition, stick-slip state of the downhole drilling tools was seen as a non-rotating "stationary" state. Real-time judgement method of string rotation state based on downhole survey data was proposed, and solution equation and dynamic solution process of deviation azimuth were given. And simulation in Matlab was done. The results show that the drill string vibration caused by rotation is the main reason for measurement error of deviation azimuth. The recommended dynamic survey approach could effectively enhance measurement precision, and deduce the effect of vibration on resolving results.关键词
钻井/旋转导向/动态解算/黏滑/加速度计/磁通门/捷联式Key words
drillings/ rotary steerable/ dynamic resolution/ stick-slip/ accelerometers/ flux gate/ strap-down分类
能源科技引用本文复制引用
薛启龙,王瑞和,孙峰,韩来聚,倪红坚..捷联式旋转导向井斜方位动态解算方法[J].中国石油大学学报（自然科学版）,2012,36(3):93-97,107,6.基金项目
国家"863"计划项目(2009AA093501) （2009AA093501）
中石化"十条龙"科技攻关项目(JP11006) （JP11006）
中央高校基本科研业务费专项课题(11CX06024A) （11CX06024A）
