石油学报 ›› 1988, Vol. 9 ›› Issue (1): 112-120.DOI: 10.7623/syxb198801014

• 论文 • 上一篇    下一篇

用三次样条模拟定向井井眼轨迹

杜春常   

  1. 西南石油学院
  • 修回日期:1986-07-04 出版日期:1988-01-25 发布日期:2013-07-08

SIMULATION OF DIRECTIONAL WELL TRAJECTORIES WITH CUBIC SPLINE Technique

Du Chunchang   

  1. Southwesiern Petroleum Institute Nanchong
  • Revised:1986-07-04 Online:1988-01-25 Published:2013-07-08

摘要: 本文根据三次样条的特性及定向井井眼轨迹的形成规律,提出了用三次样条模拟定向井井眼轨迹。论文详细介绍了用三次样条插值确定定向井井眼轨迹的方法,利用这种方法可以计算定向井任一点的空间位置。实际计算结果表明,在已知任意个相邻测点之间,用三次样条插值计算未知测点的井斜角和方位角,与实测值相比,误差很小,满足实际井眼轨迹计算的要求,具有实用价值。

关键词: 井眼轨迹, 定向井, 三次样条函数, 方位角, 井斜角, 插值计算, 三次样条插值, 模拟, 测点, 井斜变化率

Abstract: Cubic spline technique is used to simulate directional well trajectories in this paper. The method of using cubic spline interpolation to determine directional well trazectories is disscussed in detail. The coordinates of any point in a directional well trajectory can be calculated. The inclination and azimuth between any two adjacent points in a. well trajectory can also be calculated. The results obtained agree with field measured figures fairly well. This technique can be used in practical field probleus.