Method for synergistically regulating wax crystallization process of waxy crude oil by magnetic nanoflow modifier and magnetic field

By synergistically regulating the wax crystallization process of waxy crude oil using magnetic nanofluid modifiers and magnetic fields, the problems of deteriorated fluidity and high energy consumption in traditional methods have been solved, achieving efficient and environmentally friendly fluidity enhancement.

CN118460238BActive Publication Date: 2026-07-21CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING UNIVERSITY OF SCIENCE AND TECHNOLOGY
Filing Date
2024-05-09
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively control the wax crystallization process of waxy crude oil, leading to deterioration in fluidity. Furthermore, traditional heating methods are energy-intensive and emit high amounts of carbon, failing to meet the new development concepts of safety, efficiency, and low carbon emissions.

Method used

The wax crystallization process of waxy crude oil is synergistically regulated by magnetic nano-flow modifiers and magnetic fields. The combination of iron-nickel magnetic nanoparticles, ethylene-vinyl acetate polymer and polyoctadecyl acrylate in the magnetic nano-flow modifier, combined with the effect of magnetic field, regulates the wax crystallization process and improves fluidity.

Benefits of technology

It achieves stable control of the wax crystallization process, reduces crude oil viscosity and yield stress, improves fluidity, reduces energy consumption, is environmentally friendly, and has a long-lasting control effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a kind of magnetic nano flow modifier and the method for synergistic regulation of wax crystallization process of waxy crude oil by magnetic field, belongs to waxy crude oil transportation technical field.The application combines physical and chemical methods, proposes magnetic nano flow modifier and synergistic regulation by magnetic field, on the one hand, the distribution and aggregation state of iron-nickel magnetic nanoparticles in magnetic nano flow modifier are regulated by magnetic field, so that iron-nickel magnetic nanoparticles and the ethylene-vinyl acetate polymer, polyoctadecyl acrylate and wax molecules attached to its surface fully act, more effectively regulate wax crystallization process, and better regulation effect is obtained;On the other hand, the synergistic effect of magnetic field and magnetic nano flow modifier overcomes the problem that the effect of single magnetic field regulation is maintained for a limited time, and the effect of single magnetic nano flow modifier regulation is weakened or even reversed under the condition of flow shear, ensuring the effectiveness and stability of the regulation effect.
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