以抽油机井系统为对象建立了数学仿真模型 ,模型中除了抽油杆柱和液柱的力学模型和运动模型外 ,还包括了电机特性模型、抽油机力学模型和运动模型。将这些数学模型联立求解 ,可更真实地描述抽油机井系统的运动规律 ,从而提供了一种研究不同特性电机驱动下抽油机井的运动和受力的方法。从仿真示例看 ,高、低转差率电机驱动的抽油机井在运动和受力方面均有较大的差异 ,因此 ,在实际应用及设计中应考虑电机的运动特性。 A mathematic simulation model is established for the pumping well system. In addition to the mechanical model and the kinematic model of the sucker rod column and liquid column, the model also includes the motor characteristic model, the mechanical model and the motion model of the pumping unit. Solving these mathematical models in tandem can provide a more realistic description of the motion law of the pumping well system, thus providing a way to study the movement and stress of pumping wells driven by different motor characteristics. From the simulation example, high and low slip rate motor driven pumping wells in the movement and force are quite different, therefore, in practical applications and design should consider the motor’s movement characteristics.