关于侧钻井轨迹设计的思考

应用侧钻井井眼轨迹最优化设计方法 ,对海 14 - 2 0F1井眼轨迹设计进行计算 ,研究得出影响井眼轨迹的主要因素是靶点参数和开窗点参数。由此提出了侧钻井轨迹设计时地质设计人员和钻井工程设计人员协同工作 ,联合设计 ,在确保靶点有效地处于油气藏区域的前提下 ,灵活确定靶点坐标和靶区半径 ,以期达到井眼轨迹曲线段最短 ,扭方位、变井斜的钻进工作量最小 ,管柱的摩阻扭矩相对最小。用算例证实了该思路对于现场高效施工具有重大意义

Discussion on Trajectory Design of Sidetracking Well

The paper calculates the trajectory of Hai14-20F1 well by using optimized well trajectory design method.The result shows that the main factors of effecting well trajectory are the parameters of target point and kick off point.The main goal of the design on sidetacking well is to assure the well trajectory not only satisfies the need of reservoir,but also makes sure the curve length is shorter and the workload of changing inclination and azimuth is less.The calculation example confirms the consideration about the trajectory design has important significance for operation in site.