High efficient wax-prevention viscosity reduction and oil increasing apparatus

Abstract

The invention relates to the industry of petroleum exploitation and provides a high efficient wax-prevention viscosity reduction and oil increasing apparatus applied to underwell oil pumping. The apparatus comprises an oil pumping pipe and an oil pumping rod, wherein the lower end of the oil pumping rod is equipped with an oil pump; and the lower end of the oil pump is connected with a primary wax-prevention viscosity reduction oil increasing device. The high efficient wax-prevention viscosity reduction and oil increasing apparatus is characterized in that at least one sleeve rod type eddy flow strong magnetic device is inserted into a place where the lower section of the oil pumping rod is close to the oil pump; the rod type eddy flow strong magnetic device is provided with a connection rod; the middle part of the connection rod is covered with a magnetic ring set; the magnetic ring set is formed by at least three overall magnetic rings overlapped; same magnetic poles of opposite surfaces of each two overall magnetic rings are arranged; a splicing magnetic ring is inserted in each two overall magnetic rings; the same magnetic rings of two sector-shaped magnetic blocks oppositely arranged are arranged facing each other; and a coat is arranged outside the magnetic ring set to integrate all the magnetic rings into one. By the use of the high efficient wax-prevention viscosity reduction and oil increasing apparatus, crude oil viscosity can be reduced, wax precipitation can be prevented, flow capability can be increased and oil well production amount can be increased, so the apparatus is suitable for various oil production wells, such as plumb wells, inclined wells and horizontal wells.

Description

technical field [0001] The invention relates to industrial equipment for oil exploitation, in particular to a high-efficiency wax-preventing, viscosity-reducing, oil-increasing device. Background technique [0002] Generally, crude oil has high wax content, high viscosity, and poor fluidity, which brings great difficulties to oil production operations. Someone invented a strong magnetic treatment wax preventer to decompose the paraffin in crude oil, but the effect was not satisfactory after experiments, because the magnetic circuit was unreasonable, and the magnet material was selected incorrectly. In the past, pairs of tile-shaped magnets were formed along the inner wall of the tube. For forming a helical arrangement with a length of about 300mm, the field strength is smaller and the gradient is smaller, so the paraffin molecules cannot be arranged in one direction. The effect is not good. Moreover, the single anti-wax function cannot solve the problem of high viscosity a...

AI Technical Summary

Problems solved by technology

[0002] Generally, crude oil has high wax content, high viscosity, and poor fluidity, which brings great difficulties to oil production operations.

Someone invented a strong magnetic treatment wax preventer to decompose the paraffin in crude oil, but the effect was not ideal after experiments, because the magnetic circuit was unreasonable and the magnet material was selected incorrectly. In the past, pairs of tile-shaped magnets formed along the inner wall of the tube For forming a helical arrangement with a length of about 300mm, the field strength is smaller and the gradient is smaller, and the paraffin molecules cannot be arranged in one direction

The effect is not good

Moreover, the single anti-wax function cannot solve the problem of high viscosity and poor fluidity of crude oil, which makes the work load of the pumping unit heavy.

For this reason, the inventor of the present application once invented a kind of anti-wax demagnetization and oil-increasing device, and has obtained a national patent, the patent number is 200520095426.6. This invention has played a certain effect on solving the problems of high viscosity and poor fluidity of crude oil

After popularization and use in recent years, it is found that the device of the invention is not very ideal, and there is still room for improvement in its anti-wax and anti-sticking and oil-increasing effect.

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