螺杆泵井抽油杆/泵优选及分析系统

开发了地面驱动螺杆泵油井抽油杆系统分析与最优设计系统；建立了螺杆泵、杆柱直径及扶正器间距的优化设计模型。在优选螺杆泵的过程中，可从现有的泵型库中选出最优的一种，并确定油井的优化产液量、合理的下泵深度及螺杆转速。在对抽油杆进行优化过程中，又分为2个层次，分别以扶正器数目最少和杆件综合强度(静强度和疲劳强度)最大为目标，对系统进行优化设计。利用动态优化的思想进行求解。完成了系统优化设计程序，并已应用于实际设计计算中。

Optimization system for screw pump and sucker rod of oil wells

An analysis and optimum design system for surface-driven screw pump and sucker rod of directional wells is developed. Optimization models are established for choosing the type of the screw pump, diameter of sucker rods and the span of centralizers. In the processing of optimizing the screw pump, it can choose the most suitable pump from the pump library, then determine the production liquid weight, depth and rotation rate of the pump. In the processing of optimizing the sucker rods, it takes the minimum number of centralizers and maximum synthesis strength of sucker rod as object, optimizes the system. The model is solved by using dynamic programming method. Program of this system is accomplished and used in practice design and analysis.