Anti-scaling and corrosion-inhibiting device for electric submersible pump

Abstract

The invention discloses an anti-scaling and corrosion-inhibiting device for an electric submersible pump, and belongs to the technical field of anti-scaling and corrosion-inhibiting. The anti-scaling and corrosion-inhibiting device comprises an upper transport cap, an upper joint, a housing, a middle shaft, a middle connector, a lower joint, a lower transport cap and an induced separating wheel, wherein the housing sleeves the outer part of the middle shaft; the induced separating wheel is arranged between the middle connector and the upper joint; the front end of the induced separating wheel is equipped with a front anti-scaling and corrosion-inhibiting mechanism; and a rear anti-scaling and corrosion-inhibiting mechanism is arranged between the lower joint and the middle connector. The front anti-scaling and corrosion-inhibiting mechanism and the rear anti-scaling and corrosion-inhibiting mechanism are connected in series in an original separator, so that anti-scaling and corrosion-inhibiting are performed on the electric submersible pump; and the front anti-scaling and corrosion-inhibiting mechanism further can be utilized to perform anti-scaling and corrosion-inhibiting on the induced separating wheel, and therefore, scaling and corrosion, on the separator and the electric submersible pump, of oil liquid are relieved, an overhaul period of the electric submersible pump is prolonged, and use effects of the separator and the electric submersible pump are improved.

Description

technical field [0001] The invention relates to the technical field of anti-scaling and corrosion inhibition, in particular to an anti-scaling and anti-corrosion device for electric submersible pumps. Background technique [0002] The electric submersible pump is an important mechanical oil production equipment. The well condition analysis program before the application of the electric submersible pump, the pump selection optimization program for the electric submersible pump, the monitoring program for the electric submersible pump, the statistical program for the operation data of the electric submersible pump, and the electric submersible pump Pump system failure analysis program, etc. The function of the electric submersible pump system is to realize fluid lift with high lift and large displacement. The electric submersible pump system consists of three parts: surface equipment, power transmission and downhole unit. Ground equipment includes transformers, control cabin...

AI Technical Summary

Problems solved by technology

[0003] For submersible electric pumps without anti-scaling and corrosion-inhibiting devices, due to changes in underground geological conditions of oil wells, temperature changes and other factors, scales will be precipitated. After a period of operation, scales will adhere to the separator or submersible oil. In the electric pump, the existing anti-scaling and corrosion inhibition mainly adopts the anti-scaling and corrosion inhibitor, that is, adding the anti-scaling and corrosion inhibitor to the oil to realize the anti-scaling and corrosion inhibition of the oil on the submersible electric pump and separator, but the submersible Electric oil pumps and separators are used in oil production, and anti-scaling and corrosion inhibitors cannot be added before the oil enters the electric submersible pump and separator. Therefore, the scale will adhere to the separator or electric submersible pump, causing the separator and Blockage, wear, corrosion, fracture, etc. of electric submersible pumps

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