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用螺杆泵采油时，抽油杆带动果转子旋转必须克服的反扭矩包括：１．泵转子与定子间初始过盈产生的反扭矩；２．泵定子橡胶溶胀和热胀产生的反扭矩；３．泵进出口液压差作用在转子上产生的反扭矩；４．井液对抽油杆表面产生的摩擦力矩。用试验分析方法得出了前三种反扭矩，计算了第四种反扭矩，并以大庆采油六厂拉９—２６３８井所用螺杆泵的实际参数为例进行了计算，为合理使用螺杆泵、选择适当的抽油杆参数提供了依据。
With screw pump oil recovery, sucker rod driven rotor rotation must overcome the anti-torque include: 1. The initial torque between the pump rotor and stator interference torque; 2. 3. The anti-torque produced by pump stator rubber swelling and thermal expansion; Pump import and export of hydraulic differential torque generated in the rotor; 4. Friction torque produced by well fluid on sucker rod surface. The first three types of anti-torque were obtained by experimental analysis and the fourth type of anti-torque was calculated. The actual parameters of the screw pump used in Well 9-2638 of Daqing Oil Production Company No.6 were calculated as an example. In order to make rational use of the screw pump, Choosing the right sucker rod parameters provides the basis.