The technology of hole trajectory primary sect ion is the key of drilling in re entry horizontal Wells.
侧钻水平井轨迹起始段工艺技术，是侧钻水平井钻井工艺的关键技术。
Hole trajectory control techniques and safety drilling measures of high Angle deviated Wells in this block were analyzed and summed.
总结分析了曲104块大斜度井直井段、造斜段、稳斜段井眼轨迹控制技术要点以及井下安全钻井措施。
This paper reviewed the hole trajectory control of three interval profiles directional Wells that drilled in past years in Jiangsu exploration area.
介绍了历年来江苏探区三段制定向井井眼轨迹控制情况。
At present, hole trajectory azimuth Angle is measured mainly with magnetism sensor, but which is restricted by magnetic field and the metal tube around the surveying equipment.
目前的井眼轨迹方位角测量技术主要靠磁通门传感器，这种技术受地磁场及测量体周围金属管体的制约。
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 technology may control the direction of trajectory of a hole to make it to fit the different requirement of underground engineering projects.
该技术经人为控制钻孔轨迹的走向，使钻孔符合地下工程不同的要求。
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。
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 trajectory of bore hole is proved to be formed by the resultant displacement of the bit instead of the resultant force.
由此得出，决定井眼轨迹的是钻头合位移方向，而不必是合力方向。
Flip energy dissipation is widely applied in the project of energy dissipation, to get the maximal jet trajectory length and the minimum scour hole is requested by the principle of flip flow.
挑流消能在消能工中有着广泛的应用，挑流原则要求获得最大的挑距和最小的冲坑。
Effects of Well Trajectory in Directional Hole on Casing Stress under Different In-situ Stress Conditions, Progress in safety science and technology, 2005.
定向井套管应力随地应力条件的变化规律研究，石油学报，2005。
Effects of Well Trajectory in Directional Hole on Casing Stress under Different In-situ Stress Conditions, Progress in safety science and technology, 2005.
定向井套管应力随地应力条件的变化规律研究，石油学报，2005。
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