RU195517U1 - Device for the separation of produced water from petroleum products - Google Patents

Abstract

The utility model relates to apparatus for separation and can be used in various sectors of the oil refining industry for the separation of mixtures of liquid and gas. A device for separating produced water from petroleum products contains a horizontal cylindrical container with nodes for the introduction of GHS, water and film oil outlets, and a coalescing device made in the form of a successively placed thin-layer flow filter consisting of four sections, each of which is a set of plates installed at an angle 45 ° to the horizontal plane and perpendicular to the plane of the cross section of the tank and the thin-layer flow filter, consisting of parallel pipes with oleophilic surface mounted in the flow direction. The device allows to increase the intensification of the process of treatment of produced water from residual oil products and mechanical impurities and to ensure uniform uninterrupted flow of produced water to the pumping equipment. 2 ill.

Description

The utility model relates to apparatus for separation and can be used in various sectors of the oil refining industry for the separation of mixtures of liquid and gas. The developed design provides end separation of formation water, its purification from oil products and mechanical impurities, uniform uninterrupted supply of formation water to pumping equipment.

A known installation for dehydration and desalination of oil (patent for the invention of the Russian Federation No. 2302281) including a sump, which contains sequentially arranged vertical partitions made of expanded metal sheet. The partition to the oil-water interface is vertical and then slopes towards the inlet of the oil-water emulsion. Behind the partitions there is a coalescing packet overlapping the working section of the sump. The installation comprises a mixer with a mixing insert, made in the form of truncated hollow cones facing each other with smaller bases, connected at smaller bases. The disadvantage of this installation is the complexity of the design and operation, caused by the presence of deaf partitions, one kaoletsiruyuschey package for cleaning oil from water.

A known installation for the separation of produced water from petroleum products, containing a horizontal cylindrical container with nodes of the gas-liquid mixture (GHS), water and film oil outlets and a coalescing device (RF patent No. 2568663, class E21B 43/34, published on November 20, 2015). The main disadvantage is the insufficient intensification of the process of treatment of produced water from mechanical impurities and residual oil products.

The technical problem is the elimination of the noted drawback. The technical result is to increase the intensification of the process

purification of produced water from residual oil products and mechanical impurities and ensuring uniform uninterrupted flow of produced water to the pumping equipment.

The problem is solved, and the technical result is ensured by the fact that the device for separating produced water from oil products contains a horizontal cylindrical tank with nodes for the introduction of GHS, water and film oil outlets and a coalescing device made in the form of successively placed thin-layer flow filters consisting of four sections, each of which is a set of plates installed at an angle of 45 ° to the horizontal plane and perpendicular to the plane of the cross section of the container, and the filter tone osloynogo flow, consisting of parallel tubes with a oleophilic surface, set downstream.

The drawing shows a schematic representation of the proposed device, where

1. - node input GHS;

2. - a filter of a thin-layer flow (lamellar);

3. - a thin-layer flow filter (pipe);

4. - unit for the removal of film oil;

5. - water drainage unit;

6. - node hydraulic resistance.

A device for separating produced water from petroleum products contains a horizontal cylindrical tank with nodes for the introduction of GHS 1, water outlets 5 and film oil 4 and a coalescing device made in the form of sequentially placed thin-layer flow filters 2 and 3. The host GHS 1 is designed for uniform distribution of incoming gas-liquid mixture separator inside the tank. The design of the assembly reduces the likelihood of turbulent turbulence in the apparatus caused by intense

hydrodynamic effects of liquids entering the device.

A general view of the kaolinizing device is shown in FIG. 2.

The thin-layer flow filter (lamellar) 2 is designed to increase the intensity of the process of coagulation of oil droplets, sedimentation of mechanical impurities and gas separation. The thin-layer flow filter (lamellar) consists of 4 main sections (section A - 4 pcs, section B - 8 pcs, section B - 2 pcs and section G - 2 pcs), each of which is a set of plates of various designs installed at an angle of 45 ° to the horizontal plane and perpendicular to the plane of the cross section of the tank. When installing plates with an average area of one plate of at least 0.52 m at a given angle, the pressure in the system remains unchanged, however, the resistance of precipitated water droplets and pop-up oil droplets is minimized. Due to the difference in densities, the precipitated drop of water falls on the outer surface of the plate, where it is enlarged due to merging with other drops of water and sliding down the surface of the platinum. On the back of the plate, the same process occurs with a pop-up drop of oil. During the movement of the flow through the filter of a thin-layer flow (lamellar), coagulation between pop-up drops of oil and precipitated drops of water intensifies.

The thin-layer filter 3 (pipe) is designed to provide high efficiency for coarse and finely divided oil droplets in the stream of purified water. The thin-layer flow filter 3 (pipe) consists of pipes with an oleophilic surface installed in the direction of flow. When the stream of purified water moves through the annulus, oil droplets stick to the surface of the pipe walls. Over time, the droplets of oil increase and, accumulating the necessary energy, come off and float, forming a layer of trapped oil, occupying the upper boundary position in the device body.

The node (mother liquor) of the removal of film oil 4 is designed to drain from the installation of oil separated from the purified water. Separated oil, in view of

lower density, occupies the upper boundary position in the device body, from where it is discharged through the mother liquor of the removal of film oil.

The unit of hydraulic resistance 6 is designed to minimize the risk of formation water withdrawal from the device through the mother liquor for the removal of film oil and consists of polypropylene plates and fasteners perforated by cylindrical holes. The hydraulic resistance unit forms an artificial barrier, which reduces the risk of withdrawal of already separated and prepared water from the device through the unit (mother liquor) of the removal of film oil.

Claims (1)

A device for separating produced water from petroleum products, containing a horizontal cylindrical container with nodes for the introduction of GHS, water and film oil outlets and a coalescing device, characterized in that the coalescing device is made in the form of a successively placed thin-layer flow filter consisting of four sections, each of which represents a set of plates mounted at an angle of 45 ° to the horizontal plane and perpendicular to the plane of the cross-section of the tank, and a thin-layer flow filter Consisting of parallel tubes with a oleophilic surface, set downstream.

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