【摘要】 机抽气水井系统，由于抽汲介质物理化学特性和井下条件变化对抽油机等系统设备的影响很大，因此很难按常规方法进行选择。通过对抽油机运动轨迹的分析，建立了优选数学模型。该模型的设计变量为抽油机的冲程、冲次、泵径、二级或三级抽油杆往的各段长度、第一级杆柱的直径和平衡块的位置等参数。该模型具有8个设计变量和18个约束条件，可根据不同的优化问题，选择不同的单目标函数进行不同的组合。更多还原

【Abstract】 On the basis of analysing "gas-water-oil" extracting system kinetics and work capacity and according the demand of carrying on mechanically extracting of discharging water producing gas technology based on various gas water wells, the authors put forward three kinds of optimum programs for system assembly parameters; In the light of system optimum design and fully considering the particularity of mechanical gas-water extracting wells, the authors set up corresponding optimum math model.更多还原