Electromagnetic paraffin-inhibiting viscosity reducer

Abstract

The invention provides an electromagnetic paraffin-inhibiting viscosity reducer comprising a power supply control cabinet and a magneto-calorific generator which are connected with each other through a cable. The electromagnetic paraffin-inhibiting viscosity reducer is characterized in that the magneto-calorific generator comprises an inner tube, a coil is wound on the external circle of the inner tube, and a temperature sensor is arranged in the outermost layer of the coil; a housing is arranged outside the inner tube, end screw plates are arranged at two ends of the housing, and a junction box is arranged at the external circle of the housing and connected with the coil, the temperature sensor and one end of the cable. According to the electromagnetic paraffin-inhibiting viscosity reducer provided by the invention, the defect of the prior art is overcome, a certain electromagnetic force and temperature can be generated, the crude oil flowing through the electromagnetic paraffin-inhibiting viscosity reducer can be physically modified, the wax precipitation and the deposition of crude oil in the tube are prevented, the viscosity of the crude oil is reduced, and thus, the oil extraction yield and the pipeline transport efficiency are increased, and the periods of pump detection and pipeline paraffin cleaning are prolonged.

Description

technical field [0001] The invention relates to an electromagnetic anti-wax viscosity reducer, which belongs to the technical field of crude oil exploitation and pipeline transportation. Background technique [0002] Most of the crude oil produced in my country's oilfields has a high wax content. In particular, the crude oil produced in northern my country is paraffin-based crude oil with "high wax content, high viscosity, and high freezing point". In the process of oilfield exploitation, with the change of temperature, pressure, flow velocity, gas and other conditions, wax crystals in crude oil begin to precipitate and combine with colloid, asphalt, etc. to form wax deposition. If the deposited paraffin adheres to the inner wall of the wellbore and surface pipeline, it will increase the flow resistance of crude oil, reduce the effective flow area, reduce the production of the oil well, and even lead to production shutdown. [0003] Therefore, each oil field must consume a...

AI Technical Summary

Problems solved by technology

However, the magnetic anti-wax viscosity reduction technology has the following disadvantages: First, the parameters such as the magnetic field strength of the current domestic magnetic anti-wax device cannot be adjusted with the change of the well conditions, which leads to the production of the electromagnetic anti-wax viscosity reduction device. The disadvantage of poor versatility; second, the current domestic magnetic anti-wax device only uses waterproof material to seal the induction coil, because the electromagnetic anti-wax viscosity reducer is used in the open air, the temperature difference is large, and the sealing material is prone to failure; third, the current domestic The magnetic anti-wax device only pays attention to the establishment of the magnetic field, but ignores the best relationship between the magnetic field and the temperature. Therefore, the general viscosity reduction effect is not good, especially in low permeability oil wells.

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