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Research and Application of Dynamical Measurement of Drill Tool Attitude in Vertical Drilling
Pages: 422-426
Year: Issue:  5
Journal: Well Logging Technology

Keyword:  随钻测量捷联式自动垂直钻井钻具姿态动态测量连续转动模式粘滑转动模式;
Abstract: 在捷联式自动垂直钻井系统(AVDS)中加速度计、磁场强度计等传感器随钻铤同步转动,因此确定动态钻具的姿态是实现实时防斜、主动纠斜的前提和基础.提出了一种基于转动状态分类和小角度倾斜的钻具姿态的动态测量方法.将钻具的转动状态分为3类:静止、连续转动及粘滑转动状态.当钻具处于静止时,采用了传统的测量算法.连续转动模式的钻具姿态测量算法是基于窄带滤波和等角度重采样的思想.粘滑转动模式的钻具姿态测量算法是...
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