井眼轨道设计是大位移井的关键技术之一。
Well trajectory design is one of the key techniques for successfully drilling an extended reach well.
讨论了两种典型的三维井眼轨道设计问题。
Two typical problems in 3D well-path planning are discussed in this paper.
合理的井眼轨道设计是成功控制井眼轨道的关键。
A reasonable well-path planning is the key to control well path successfully.
信号传播是井眼轨道自动控制系统的重要组成部分。
Signal transmission is the principal part of automatic control system for wellbore trajectory.
为了预测和控制井眼轨道，必须对地层力进行定量分析。
Thus it is necessary to quantitatively analyze the formation force in order to predict and control the bit 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。
Information transmission between ground and down hole is the of key the closed-loop control system of wellbore trajectory.
文中对井眼轨道自动控制系统设计的有关基本问题进行了初步的分析。
Basic problems on design of automatic control system of bit trajectory are analyzed in this paper.
针对三维水平井井眼轨道设计问题，建立了一个非线性最优控制模型。
A nonlinear optimal control model for designing three-dimensional trajectory of horizontal well was established.
准确、快速、合理地设计多约条件下的三维井眼轨道是人们期待解决的问题。
It is expected to solve the problem about accurate, quick and reasonable design of three-dimensional well-path subject to various constraints.
井眼轨道的软着陆设计模型的求解可以归结为一个七元非线性方程组的求解问题。
The solution for design model of soft landing in borehole trajectory can come down to the solution with 7-element nonlinear equations.
水平井井眼轨道预测和控制问题的技术关键是准确计算各种造斜工具的造斜能力。
To exactly calculating the build rate of building motor assemblies and others is a key point of correct prediction and control for bit trajectory in horizontal drilling.
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。
Optimizing wellbore trajectory design is the key link to ensure the quality of well bore, decrease accidents in well hole and lower drilling cost.
该井井眼轨道优化设计和井眼轨迹控制技术为类似水平井的井眼轨道设计和轨迹控制提供了有益的借鉴。
The well path optimization and control technology applied to this well can supply valuable references to similar horizontal wells.
针对定向井、侧钻井井眼轨道的常见类型给出了不同的优化数学模型，分析了计算过程，并给出了应用实例。
According to the normal well path types of the directional and sidetrack Wells, the calculating process is analyzed and the application cases are given.
利用下部钻具力学分析和钻头与地层相互作用模型来预测和控制井眼轨道对于大多数钻井作业来说仍是一个难题。
It still is a difficult subject for most drilling engineers to predict and control well path by applying the mechanical analysis of bottom hole assembly and the rock-bit interaction model.
限定了目标点井眼方向的三维圆弧型井眼轨道设计模型是一个非线性代数方程组，通常需要使用数值迭代方法进行求解。
The borehole trajectory design to be drilled well with defined direction needs to solve a set of 7-element nonlinear equations.
井眼轨迹控制是侧钻水平井技术的核心，而轨道设计与优化设计又是轨道控制技术的两大关键技术之一。
The control of the trajectory is the core technique in horizontal well technique, while trajectory design and optimal design are the two key techniques.
解决了钻井轨道设计与井眼轨迹监测的三维可视化问题。
It solves the problem of 3d visualizing of the design and real-time monitoring of drilling.
解决了钻井轨道设计与井眼轨迹监测的三维可视化问题。
It solves the problem of 3d visualizing of the design and real-time monitoring of drilling.
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