在水平径向钻进中 ,钻杆在其内部高压驱动下通过转向器由垂直方向向水平方向转向 ,在约 0 3m最小曲率半径内发生大于 90°的弯曲 ,而且转向轨迹是由多个参数描述的。对此 ,井运用ANSYS5 4软件完成了所设计的α、R、δ数值试验并对数值试验数据作了处理。分析表明 ,在其它转向轨迹参数不变的情况下 ,偏角α在所设计的范围内变动时 ,钻杆通过转向器的阻力波动较小 ;最小弯曲半径R在所设计的范围内变动时 ,钻杆通过转向器的阻力随着R的增大而减小 ;矫直偏量δ在所设计的范围内变动时 ,当δ >0 ,随着δ的增大钻杆通过转向器的阻力Fz 上升很快 ,而当δ <0 ,阻力Fz 随δ的减小下降较慢 In horizontal radial drilling, the drill rod is steered by the steering gear from the vertical direction to the horizontal direction under the internal high-pressure driving, and a bending of more than 90 ° occurs within a minimum radius of curvature of about 0 3 m. The steering trajectory is composed of a plurality of parameters describe. In this regard, well ANSYS5 4 software to complete the design of α, R, δ numerical experiments and numerical test data are processed. The analysis shows that the resistance fluctuation of the drill rod through the steering gear is small when the deflection angle α varies within the designed range under the condition of other steering trajectory parameters unchanged. When the minimum bending radius R varies within the designed range, The resistance of the drill pipe passing through the steering gear decreases with the increase of R; when the deviation δ is within the designed range, when δ> 0, as the δ increases, the resistance of the drill rod through the steering gear Fz Rise rapidly, and when δ <0, the resistance Fz decreases slowly with the decrease of δ