This paper discusses the basic principles of predicting and controlling the wellbore trajectory.
讨论了井眼轨迹预测和控制计算方法。
Information transmission between ground and down hole is the of key the closed-loop control system of wellbore trajectory.
地面与井下的信息传输是井眼轨道自动闭环控制的核心。
The research result has a guiding significance about preventive inclination of vertical well and wellbore trajectory control of inclined well.
研究结果对直井的防斜打直、斜井的井眼轨迹控制具有指导意义。
Optimizing wellbore trajectory design is the key link to ensure the quality of well bore, decrease accidents in well hole and lower drilling cost.
优化井眼轨道设计是保证井身质量，减少井下事故，降低钻井成本的关键环节之一。
The effects of WOB fluctuation of drill string on the wellbore trajectory are analyzed by using stochastic finite element method and perturbation equation.
借助随机有限元方法和摄动方程初步分析了钻压波动对井眼轨迹的影响。
Meanwhile, the downhole motor and MWD are not affected and wellbore trajectory can be controlled because of the continuous fluid phase flow throughout the bore hole.
同时由于从井口到井底始终存在着连续的液相流，常规井下动力钻具和随钻仪器的性能不受影响，可以进行正常的井眼轨迹控制。
Calculation of the nearest distance among adjacent Wells is very important in drilling trajectory design, interwell anti-collision calculation, and actual wellbore trajectory control.
在钻井轨道设计、井间防碰计算、实钻轨迹监控等问题中，邻井之间的最近距离计算有很重要的意义。
A particularly crooked place in a wellbore where the trajectory of the wellbore in three-dimensional space changes rapidly.
井眼中特别弯曲的地方，该处三维空间内井眼的轨迹变化很快。
A particularly crooked place in a wellbore where the trajectory of the wellbore in three-dimensional space changes rapidly.
井眼中特别弯曲的地方，该处三维空间内井眼的轨迹变化很快。
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