In order to improve the service life of the screw pump, the rubber types in a screw pump stator and the advanced research on the modification of nitrile rubber in recent years are summarized.

• 摘要针对提高采油螺杆泵工作寿命的问题，介绍了国内外螺杆泵定子橡胶材料的类型和近年来丁腈橡胶改性研究的新进展，有利于定子橡胶性能的进一步改进。