摘要
如何利用漂移规律来控制方位,是一项重要的研究课题。本文根据方位漂移的基本特征,提出了三维定向井设计的新方法。在井眼轨道的描述模型、设计方法和设计结果等方面,它与常规的二维剖面设计存在着显著的差异。该方法可以确定出定向方位等参数,并给出漂移轨道的实际描述,从而为钻井实践提供真正意义上的理论指导。通过理论分析、计算机计算和设计实例验证了该方法适用于各种圆弧形定向井剖面。
It is an important research subject how to control the azimuth of borehole trajectory by an application of the regularity of drift. According to the essential features of bit walk, a new 3 - D design method for directional wells is presented in this paper. Comparing with the conventional 2 -D design method, it shows marked differences in the descriptive model, design method and the calculated results for a borehole trajectory. This method can determine the orienting azimuth and give the actual description of drift trajectory. So it will provide the genuinely theoretical guidance for the drilling practice. Theoretical analysis, computer software and the design examples have verified that the method presented in this paper applies to various well configurations of arc type.
出处
《中国海上油气（工程）》
1997年第3期27-31,共5页
China Offshore Oil and Gas
关键词
钻井理论
定向钻井
井眼轨道
石油
drilling theory, directional drilling, borehole trajectory, drift, mathematical model
