Permanent magnet ultrasonic paraffin control device

Abstract

The invention relates to a permanent magnet ultrasonic paraffin control device. The permanent magnet ultrasonic paraffin control device is characterized by at least comprising an ultrasonic generator, a cable, an ultrasonic transducer, permanent magnets, magnet sleeves, a protection box, an inner pipe and two flange discs; the two ends of the inner pipe are provided with the two flange disc respectively, and the ultrasonic transducer is arranged on the inner wall of the inner pipe; the ultrasonic transducer is electrically connected with the ultrasonic generator located at the upper end of the outer wall of the inner pipe through the cable; the permanent magnets are arranged on the outer wall of the inner pipe and located at the lower end of the ultrasonic generator, and the magnet sleeves are arranged outside the permanent magnets; the portion, located between the two flange discs, of the inner pipe is sleeved with the protection box, and the ultrasonic transducer, the permanent magnets and the magnet sleeves are arranged in the protection box in a sleeved mode; the N poles and the S poles of the permanent magnets are arranged in a combined and alternating mode, so that a spiral strong alternating magnetic field is formed. Under the cooperative effect of the magnetic field and ultrasonic waves, the paraffin control effect is better.

Description

technical field [0001] The invention relates to an oil well wax preventer, in particular to a permanent magnet ultrasonic wax preventer. Background technique [0002] In the process of oil recovery, with the temperature and pressure of the crude oil lowering and the gas escaping, the dissolved paraffin crystallizes out, and the wax crystals continue to precipitate out and cross-link into a network structure, which adheres to the pipe wall, blocks the pipe, and reduces The effective pipe diameter increases the pressure drop, reduces the oil delivery volume, and forms "wax deposits". It greatly affects the stable and high production of oil wells, and brings many troubles to production. [0003] Commonly used wax removal methods include mechanical wax removal, heat washing wax removal, chemical wax removal, surface energy wax removal, and microbial wax removal. However, these methods are costly, complicated, and have limited wax removal effects. In recent years, permanent mag...

AI Technical Summary

Problems solved by technology

Greatly affect the stable and high production of oil wells, and bring many troubles to production

[0003] Commonly used wax removal methods include mechanical wax removal, thermal wax removal, chemical wax removal, surface energy wax removal, and microbial wax removal. However, these methods are costly, complicated, and have limited wax removal effects.

In recent years, permanent magnetic wax preventers, electromagnetic wax preventers, and ultrasonic wax preventers have been developed. Although these wax preventers play a role in wax prevention to a certain extent, due to their own structure and technical limitations, a single wax preventer The technology still cannot meet the needs of wax prevention and normal production of oil wells, and the problem of wax deposition still restricts the normal production of oil wells

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