Precious metal anti-scale electric submersible pump production pipe column

Abstract

The invention discloses a precious metal anti-scale electric submersible pump production pipe column. The production pipe column comprises a mandrel hanger, an underground safety valve, a circulationsliding sleeve, a production packer, a Y-shaped connector, a working cylinder, a branch pipe, a flow guide cover, a steel wire guide shoe, an upper oil pipe, a check valve, an oil-submerged pump, an oil-gas separator, a protector, a motor, an underground pressure meter, an adapter short joint, a precious metal anti-scale device, an oil pipe guide shoe and a production sleeve. The pipe column has the ant-scale function, the problem that corresponding descaling measures need to be taken on electric submersible pump wells with scale risks due to severe scaling of the electric pump and the upper pipe column is avoided, the problems that after severe scaling of an electric submersible pump system, a channel of the oil-submerged pump is blocked, the pump is blocked and even well laying is causedcan also be effectively solved, the pump check cycle is prolonged, the workover cost is reduced, and efficient and stable production of oil wells is guaranteed.

Description

technical field [0001] The invention relates to the technical field of oil field development, in particular to a production pipe string of a precious metal anti-scaling electric submersible pump. Background technique [0002] In water injection development oilfields, the incompatibility of injection water and formation water often causes scaling in oil wells. In non-water injection development oilfields, oil wells may also have self-analysis scaling problems after water breakthrough. For the above-mentioned scaled oil wells, if the lifting method is electric submersible pump oil production, due to the large changes in flow velocity and temperature and pressure at the electric submersible pump, it is easy to cause fouling in the flow channel of the submersible oil pump, block the pump, or even lie in the well, seriously affecting the stable and efficient production of the oil well. At the same time, the frequency of workover operations is increased, which brings great economi...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a precious metal anti-scaling electric submersible pump production pipe string, which can effectively solve the problem that the electric submersible pump well frequently gets stuck or even lies in the well due to serious fouling of the electric submersible pump system

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