Static spiral grid type driving cyclone oil-water separator

Abstract

The invention relates to a produced water-oil separator for a deepwater oil-gas field and aims to provide a static spiral grid type driving cyclone oil-water separator. The oil-water separator comprises a separation device, a bracket, an oil-water mixture oil drum, a pump, a power system, an oil collecting drum and a water collecting drum, wherein the oil-water mixture oil drum, the pump and the separation device are connected with each other through pipelines and are fixed above the bracket; the power system is fixedly arranged at the left side of the bracket; a motor belt wheel is connected with a rotary drum belt wheel in the separation device through a V belt; the oil collecting drum and the water collecting drum are fixedly arranged on the bracket below the separation device; the oil collecting drum is connected with an overflowing pipe in the separation device; and the water collecting drum is connected with a bottom flowing device through a steel pipe. The static spiral grid type driving cyclone oil-water separator is compact in structure and very small in volume and weight, and is suitable for deep sea work; the concentration of an oil-water mixture and an applicable range of the impurity content are increased; the separation time is shortened; and the separation effect is improved.

Description

technical field [0001] The invention relates to a production water oil-water separator for deep-water oil and gas fields, in particular to a static spiral grid type active swirl oil-water separator. Background technique [0002] For oil-water separators, the current traditional separation methods include static gravity oil-water separators, static hydrocyclones and active cyclones. The gravity oil-water separator uses a huge separation tank to separate oil and water under gravity by using the density difference between oil and water. The gravity oil-water separator has long separation time, low separation efficiency, huge volume and weight, and is difficult to operate in deep water environment. , and expensive. The static hydrocyclone uses the pressure difference between the inlet and the outlet to rotate the crude oil in the swirl tube to generate centrifugal force, while the density of oil and water is different, the centrifugal acceleration is different, and the radial v...

AI Technical Summary

Problems solved by technology

[0003] The traditional dynamic cyclone accelerates the mixed liquid by rotating the rotating grid. The tangential velocity of the mixed liquid in the rotating cylinder gradually decreases due to frictional resistance, and the pressure loss is serious. When it reaches the end, the flow is disordered and the separation effect is affected.

Moreover, the traditional dynamic cyclone is placed horizontally. When the length of the rotating cylinder is long, it is affected by the gravity of the mixed liquid and the separation is smooth.

The structural design and sealing design of the traditional dynamic cyclone are seldom considered, and the vibration of the equipment is serious, which affects the separation effect

In addition, due to poor sealing, if it is used for underwater separation, it is easy to cause leakage pollution

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