A high-efficiency electromagnetic synchronous synergistic coalescence device

Abstract

The invention relates to a coalescing device with high-efficiency electromagnetic synchronous synergy. It includes the inlet head, the outlet head, and the liquid distribution orifice and the coalescer main body. It is characterized in that there is an electromagnetic synchronous coordination device between the inlet head and the outlet head, and the connection between the inlet head and the cylindrical outer electrode There is a liquid distribution orifice between them, and the electromagnetic synchronous coordination device includes coaxially distributed electric field generating components and magnetic field excitation components, and the electric field and magnetic field are distributed orthogonally and synchronously and synergistically. The electric field generating component includes a grounded cylindrical outer electrode and an electrode wrapped in an insulating cylinder at the center of the axis. The magnetic field excitation component includes an outer layer and an inner layer coil coaxially sheathed on the outer electrode, and the number of turns of the outer layer coil is greater than that of the inner layer coil. Those contained in the self-circulating cooling jacket. The invention significantly improves the efficiency and scope of oil-water separation, and can handle oil-water emulsions with a water content as high as 40%, so it is widely applicable to efficient and stable devices and facilities for oil-water separation on land and at sea.

Description

technical field [0001] The invention belongs to the technical field of multiphase separation of oil and gas gathering and transportation systems, and in particular relates to an efficient electromagnetic synchronous synergistic coalescence device. Background technique [0002] As major oilfields enter the middle and late stage of development, enhanced oil recovery methods such as water injection, agent injection and polymer injection are more and more widely used, and the emulsification of oil-water mixture produced from the wellhead is becoming more and more serious. The water content in crude oil increases the proportion of ineffective work in the power system, increases the proportion of ineffective heat energy in the thermal system, and easily causes corrosion and scaling of storage and transportation equipment. Therefore, it is of great significance to study the efficient separation technology of oil-water emulsion to improve the safe and stable operation of crude oil g...

AI Technical Summary

Problems solved by technology

The lower end of the electrode of this kind of equipment is located at the water outlet, and the lower end of the electrode will be in the water layer for a long time, which has a great impact on the life of the electrode insulating material.

In addition, after the emulsion is treated by the electric field and magnetic field, it still needs gravity settling for a period of time to separate the water. Therefore, in order to ensure the gravity settling time, the axial dimension of this device is relatively large, which will seriously affect its installation and maintenance. fixed

[0007] The magnetoelectric dehydration device disclosed in the above-mentioned patent mainly has four problems: first, when the water content of the emulsion is high on the bare metal electrode plate, the collapse electric field effect caused by the conduction of the water droplet chain may appear in the emulsion flow channel, and the voltage is relatively high When the high voltage breakdown medium may occur between the plates, the electric field collapse may occur. Therefore, this type of device is only suitable for emulsions with low water content, and the electric field strength is limited; second, the size of the device, the separation of coalescence and sedimentation The one-piece vertical design will increase the axial size of the device, which is not conducive to installation and fixing; third, the electromagnet generates heat, and when excited to generate a high-intensity magnetic field, it is accompanied by a large amount of heat release. The overheating of the coil makes it difficult to increase the magnetic field strength and may even cause a short circuit accident

More importantly, the separation efficiency of the existing technology is low, especially for the treatment of high-water emulsions. Obviously, it is necessary to achieve efficient coalescence of oil-water emulsions and improve the stability and safety of device operation.

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