Hydrocyclone separation system

 

The invention relates to systems of collection and preparation of oil and water emulsions. The objective of the invention is to improve the performance of the installation and preliminary separation and discharge of water. The installation includes technological capacity, hydrocyclone mounted on the input of crude oil into the technological capacity, the pipeline for supply of crude oil through the hydrocyclone in technological capacity and pipelines to drain oil and gas from the process vessel. The plant is equipped with a pipeline to divert water from the process tank. The lower part of the technological capacity divided by partitions into the zone of accumulation and discharge of water, the Central settling zone and the zone of accumulation and discharge of oil. The hydrocyclone is installed in the Central settling zone technological capacity so that the tangential input is below capacity, the holes for exit of gas from the cyclone is located in the upper part of technological capacity in the zone of accumulation and discharge of gas, the holes for removal of water from the hydrocyclone are located in the Central settling zone, while the Central pipe for withdrawal of oil from the hydrocyclone is connected to the zone of accumulation and discharge of oil. Partition separating ottolia and water discharge. Partition separating settling zone from the zone of accumulation and discharge of oil, installed with the possibility of overflow through her separated oil in the zone of accumulation and discharge of oil. 1 Il.

The invention relates to systems of collection and preparation of oil and water emulsions.

Known separation system containing technological capacity, the lower part of which is the accumulation and discharge of liquid, and the upper accumulation and discharge of gas. The input of crude oil into the technological capacity installed hydrocyclone. In technological capacity installed drain shelves, sprinklers, drip pans and level sensor. The plant is equipped with a pipeline for the supply of crude oil in the tank and piping to drain gas and oil-water mixture from the tank [1. The Hydrographic System Of Latushkin. Collection and preparation of oil, gas and water. - M.: Nedra, 1983, S. 145-146, Fig.54].

The hydrocyclone is a preliminary separation of gas, but the gas is then supplied into the process container by the total pipe with the gas-liquid flow. In addition, hydrocyclone enter production wells is not conducive to a preliminary separation of water in the separator. All of this severely overloads the separator and reduces its proizvodnoi and preliminary separation and discharge of water.

To solve the problem hydrocyclone separation system containing technological capacity, hydrocyclone mounted on the input of crude oil into the technological capacity, the pipeline for supply of crude oil through the cyclone into the tank and piping to drain oil and gas from the process vessel, equipped with an additional pipeline to divert water from the process tank, the lower part of the technological capacity divided by partitions into the zone of accumulation and discharge of water, the Central settling zone and the zone of accumulation and discharge of oil, the hydrocyclone is installed in the Central settling zone technological capacity so that the tangential input is below capacity, openings for exit of gas from the cyclone is located in the upper part of technological capacity in the zone of accumulation and discharge of gas, the holes for removal of water from the hydrocyclone are located in the Central settling zone, while the Central pipe for withdrawal of oil from the hydrocyclone is connected to the zone of accumulation and discharge of oil, the partition separating the settling zone from the zone of accumulation and discharge of water, made with a channel for flow of the separated water in the zone of accumulation and discharge of water, and partition separating from the I oil the zone of accumulation and discharge of oil.

The invention is illustrated by the drawing, which shows a diagram hydrocyclone separation plant.

Hydrocyclone separation system consists of a horizontal process vessel 1, the upper part of which is a zone 2 accumulation of gas, and the lower portion of the process vessel in which fluid accumulates, the partitions 3 and 4 zone 5 accumulation and discharge of water, settling zone 6 and zone 7 of the accumulation and discharge of oil. Process tank 1 is equipped with a cyclone 8, which is installed in the settling zone inverted so that the tangential input 9 is below the technological capacity 1.

When the hydrocyclone 8, there are formed three zones: the lower - separated water, medium - separated oil, the upper separated gas. The lower area of the hydrocyclone through the holes 10 communicates with the settling zone of the tank below the liquid level therein, and the average area of the hydrocyclone through the Central pipe 11 tangential input 9 and the bypass pipe 12 communicates with the zone 7 for the accumulation and discharge of oil in the processing tank 1. The upper area of the hydrocyclone 8 communicates with the zone 2 gas accumulation.

Process tank 1 is equipped with a safety valve 13 and the controller 14, Ural branch of the Y. capacity 1 crude oil (production wells). From the vessel depart the pipeline 16 to drain the oil on the preparation and pipelines 17 and 18 for removal of water and gas for further recycling.

In the discharge gas pipe 18 is installed drop entrainment 19 with the pipe 20 to return the oil into the container and an adjustable valve 21 associated with the float 22 installed in the tank.

Crude oil (water-gas mixture) on the pipe 15 through the tangential (screw) input 9 is fed to the hydrocyclone 8, where it is split by the height of the water, oil and gas.

Water from the hydrocyclone 8 through the openings 10 enters the settling zone 6 of the process container 1. The gas from the cyclone unit 8 through the holes 23 is supplied into the process container 1 in zone 2 of the accumulation of gas and oil through the Central pipe 11 tangential input 9 and the pipe 12 enters the zone 7 of the accumulation and discharge of oil.

In the settling zone 6 is the gravitational separation of water from oil. Oil through the partition 4 flows into zone 7, and the water through the slit gap in the partition 3 flows into zone 5 of the accumulation and discharge of water.

Gas from the plant is discharged through pipes 18, drip liquid from which is captured by the drop entrainment 19 and the pipe 20 is returned into the container 1. Netted water is controlled by the level controller 14, and the exhaust gas is controlled by valve 21.

Hydrocyclone separation system allows you to combine the first stage separation of oil from gas with stage of preliminary water. Reduces the intensity of technological equipment and the costs of producing the commodity oil.

Claims

Hydrocyclone separation system containing technological capacity, hydrocyclone mounted on the input of crude oil into the technological capacity, the pipeline for supply of crude oil through the hydrocyclone in technological capacity and pipelines to drain oil and gas from the process vessel, wherein the plant is equipped with a pipeline to divert water from the process tank, the lower part of the technological capacity divided by partitions into the zone of accumulation and discharge of water, the Central settling zone and the zone of accumulation and discharge of oil, the hydrocyclone is installed in the Central settling zone technological capacity so that the tangential input is below capacity, openings for exit of gas from the cyclone is located in the upper part of technological capacity in the zone of accumulation and discharge of gas, the holes for removal of water from the hydrocyclone is United to the zone of accumulation and discharge of oil, partition separating settling zone from the zone of accumulation and discharge of water, made with a channel for flow of the separated water in the zone of accumulation and discharge of water, and partition separating settling zone from the zone of accumulation and discharge of oil, installed with the possibility of overflow through her separated oil in the zone of accumulation and discharge of oil.

 

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