论文部分内容阅读
明确指出了现有定向井待钻井眼轨迹设计方法的不足之处， 即设计出来的井眼轨迹不能确信为一条最优的轨迹或可行的最优待钻轨迹。首次将定向井待钻井眼轨迹最优化设计问题归结为非线性不等式约束下线性目标函数的非线性规划问题， 并应用序列无约束极小化方法——ＳＵＭＴ混合法进行优化计算。
The deficiencies of the existing design method of directional well to be drilled well are clearly pointed out. That is, the designed well trajectory can not be confirmed as an optimal trajectory or a feasible optimal trajectory to be drilled. For the first time, the optimization design of directional well to be drilled hole trajectory is reduced to the nonlinear programming problem of linear objective function constrained by nonlinear inequality, and the sequence unconstrained minimization method - SUMT method is used to optimize the calculation.