The electric submersible screw pump is a new type of oil extraction equipment that combines the advantages of the submersible electric pump and the screw pump. The ground drive of the screw pump is changed to a high-efficiency submersible motor driven by a small tooth difference reducer, and the sucker rod is removed. It solves the problems of tripping, rod breakage and partial wear caused by sucker rod thread and coupling, and prolongs the pump inspection cycle. Compared with other oil extraction equipment, the new fishing submersible screw pump has the advantages of wide range of well fluids, no rod string wear, fragile cables, easy management, high efficiency and energy saving, etc. It is especially suitable for conventional oil pumping equipment such as rod pumps. , Electric submersible pumps and other difficult to operate heavy oil wells, sand-bearing wells, gas-bearing wells, and small-displacement wells; especially in the production operations of horizontal wells and directional wells that are difficult to adapt to rod pumps. The fishing electric submersible screw pump realizes the fishing of the cable in the tubing, one-time docking, the cable can be reused, the operation process is simple and convenient, the fishing cable can realize the functions of temperature measurement, pressure measurement, heating, etc., matching the intelligent management system, high efficiency, energy saving, Safe and environmentally friendly.

   Electric submersible screw pump is a new breakthrough in the development of oil production equipment in recent years. It combines the advantages of electric submersible pumps and ground-driven screw pumps. It has a wide range of conveying media; it has a significant power saving effect; there is no tube and rod wear; it can be used for oblique Wells and horizontal wells; small diameter tubing can be used; reliable operation, small maintenance; large starting torque, and suitable for the development of inclined wells, heavy oil wells, and high sand and high gas content wells.