直驱式螺杆泵是一种在传统机械式螺杆泵基础上发展出来的采用立式空心轴电机直接驱动光杆的新型螺杆泵。与传统螺杆泵相比,直驱式螺杆泵具有高效节能、提高开井时率、防止机械事故、降低工人劳动强度等一系列优势。本文通过分析直驱式螺杆泵在聚驱采油中的应用,证明其技术的优越性和可行性,同时进一步指出直驱式螺杆泵的广阔前景,建议各油田广泛采用。 Direct-drive screw pump is a new type of screw pump developed on the basis of the traditional mechanical screw pump, which uses the vertical hollow shaft motor to directly drive the polished rod. Compared with the traditional screw pump, direct-drive screw pump with high efficiency and energy saving, improve the rate of open wells, prevent mechanical accidents, reduce labor intensity and a series of other advantages. In this paper, by analyzing the application of direct-drive screw pump in poly-flooding oil recovery, the superiority and feasibility of its technology are proved. Meanwhile, the broad prospects of direct-drive screw pump are further pointed out.