Heating device for preventing wax precipitation of oil pipe of producing well

Abstract

The heating device comprises an oil pipe body, an annular plate is arranged in the oil pipe body, a main sleeve is arranged in the middle of the interior of the annular plate, an air inlet pipe is arranged at the top of the main sleeve, and a plurality of circulation pipes are connected between the outer wall of the main sleeve and the inner wall of the annular plate. An inner pipe is arranged in the main sleeve, the top of the inner pipe is communicated with an air inlet pipe, a plurality of groups of symmetrical flow dividing holes are formed in the two sides of the inner pipe, and annular partition plates which are symmetrically distributed up and down are arranged in the space between the outer wall of the inner pipe and the inner wall of the main sleeve; the annular partition plates divide the space between the outer wall of the inner pipe and the inner wall of the main sleeve into a plurality of flow dividing cavities, and the flow dividing cavities correspond to the flow dividing holes in position. According to the heating device for preventing the oil pipe of the producing well from wax precipitation, high-temperature steam can make more sufficient contact with crude oil, so that the uniformity of the wax melting degree is better, and the overall process of crude oil extraction is guaranteed.

Description

technical field [0001] The invention relates to the technical field of oil production wells, in particular to a heating device for preventing wax precipitation of oil pipes of oil production wells. Background technique [0002] At the current stage of my country's oil production engineering, the problem of wax deposition in oil production well tubing often occurs, and the wax deposition in oil production well tubing will cause the pipe diameter to gradually decrease with the continuous increase of the wax deposition degree, which will lead to oil wells. The production efficiency is reduced and the service life of the oil well pipeline will be seriously affected. Therefore, it is an important task to wax the oil production well tubing in the process of oil production engineering. [0003] At present, the oil production well tubing is partially heated by steam for waxing, while the steam heating device used in the existing oil production well tubing heats the crude oil in a rel...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a heating device for preventing oil production well tubing from waxing, so as to solve the above-mentioned background technology when the current oil production well tubing uses steam heating to melt wax, because the steam cannot fully contact the crude oil, so It is easy to cause the problem of uneven waxing

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