So now, for any given values of AHO,AHS, the three dimensional design of dieretionally drilled well can be rel-ized by the software package.

• “定义域、值域法”计算AHT值的两种方法,从而实现了软件包在给定AHO、AHS任意值(全方位)时均可完成定向井的三维设计。