foam generator

Abstract

The application discloses a foam generating device, which belongs to the field of foam flooding. The device includes a foam collector, a porous plate, a plug, a motor, a bracket, an outer magnetic steel, an inner magnetic steel, a sliding sleeve and a stirring blade. When in use, the motor drives the bracket and the outer magnetic steel to rotate through the second rotating shaft, because the rotation of the outer magnetic steel changes the magnetic force distribution around the inner magnetic steel, therefore, when the outer magnetic steel rotates, it will drive the inner magnetic steel and the stirring blade to rotate synchronously . At this time, without stopping the operation of the device, the mixed liquid can be continuously delivered to the inner cavity of the plug through the liquid inlet until the amount of foam generated reaches the predetermined demand, thus saving multiple times due to excessive foam demand. The time it takes to fill the foam generating unit with mixed liquid. Moreover, during the foam generation process, the amount of the mixed liquid entering the inner cavity of the plug is precisely controlled according to the amount of converted foam, thereby avoiding waste of the mixed liquid and saving costs.

Description

technical field [0001] The present application relates to the technical field of foam flooding, in particular to a foam generating device. Background technique [0002] Foam flooding is a method of oil displacement that uses foam as the oil displacement medium to displace the crude oil stored in the formation. When this method is used for oil displacement, a certain proportion of water, gas and foaming agent is usually first prepared into a mixed liquid, and then the mixed liquid is injected into a high-speed agitator for high-speed stirring, so that the mixed liquid is fully rubbed and converted into foam, and then The foam is injected into the formation to realize the displacement of crude oil. Since the foaming speed, foaming volume and half-life of the mixed liquid after forming foam have an important influence on the performance of foam flooding, and the necessary condition for the mixed liquid to form foam is that the mixed liquid is stirred at a high speed. Therefore...

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Problems solved by technology

[0005] The application provides a foam generating device, which can be used to solve the problem that the amount of foam converted from the mixed liquid cannot be accurately controlled when the mixed liquid is stirred at a high speed by the related technology

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