Oil-water cyclone separator with degassing function

Abstract

The invention discloses an oil-water cyclone separator with a degassing function. The oil-water cyclone separator comprises a spiral flow generator, a degasser and a separation chamber which are encircled by the separator and connected in sequence, wherein guide vanes in peripheral uniform arrangement are formed in an annular chamber formed by the spiral flow generator and an outer tube of the cycle separator, so that the fluid rotates; an exhauster is in smooth connection with the spiral flow generator; a vertical seam is formed in the exhauster; an included angle alpha between the directionof the vertical seam and an oil-water mixed liquid flow direction is 90-180 degrees; the rotation speed of the fluid is increased due to a conical annular space formed between the exhauster and the outer tube of the separator, and the gas enters an exhaust chamber via the vertical seam; a small conical section of the cyclone separation chamber is a main space for oil-water separation; a drainage pipe is arranged at the tail of the separation chamber. The oil-water cyclone separator is applicable to oil-water separation treatment of oilfield produced water containing a small amount of associated gas, and has the advantages of being compact in structure, high in oil-water separation efficiency and the like. The occupied space is substantially saved, the oilfield production cost is saved, anda foundation is laid for economic benefits in the middle and later periods of oilfield development.

Description

technical field [0001] The invention relates to an oil-water separator, in particular to a tubular oil-water cyclone separator with a pre-degassing function, belonging to the technical field of oil-gas gathering and transportation. Background technique [0002] With the continuous exploitation of oilfields, most of my country's onshore oilfields have entered a stage of high water cut. In order to solve the problem of producing water treatment and not expand the area of ​​surface water treatment facilities in oilfields, downhole oil-water separation and injection-production technologies in the same well have been widely adopted. focus on. Due to the very limited space for downhole operations, compact and efficient oil-water cyclone separators are mostly used in downhole separation technology. However, when the cyclone separator is working downhole, a certain amount of associated gas will enter the cyclone separator together with the production fluid. The existence of the gas ...

AI Technical Summary

Problems solved by technology

However, when the cyclone separator is working downhole, a certain amount of associated gas will enter the cyclone separator together with the production fluid. The existence of the gas phase not only changes the flow and separation conditions in the equipment, but also increases the degree of interphase mixing and turbulence. , adversely affect the separation performance of the cyclone

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