摘要
双增形轨道是中、长半径水平并最常用的设计轨道。卡尔森等人提出了设计双增轨道的平行切线法。本文在肯定卡文的思路和方法的同时,指出卡文中计算切线段井斜角的公式有错误,并给出了正确的计算公式。同时还进一步指出了平行切线法的不足之处,从而提出了设计双增轨道的最优进入法,可使进入点与窗口中心重合,同时给出了计算公式和算例。
The two-buildup trajectory is very useful for planninghorizontal wells with medium-radius and long-radius.This paper confirms the idea and method of the parallel tangent method proposed by H.Karlson in 1989 and corrects the mistakes of the formulas for calculating the tangent angle in his article.The shortcomings of the parallel tangent method are also discussed.An optimum entry method for designing the trajectory is proposed in this paper.The entry point coincides with the centre of the target window.The formulas for this method are given with calculation examples.
出处
《石油大学学报（自然科学版）》
CSCD
1991年第4期15-20,共6页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
钻井
水平井
井眼轨迹
Lateral drilling
Dilling planning
Horizontal well
Well trajectory
