CN210714638U - Water injection device for oil production well - Google Patents

Abstract

The utility model relates to an oil recovery machinery technical field specifically discloses a water injection device for oil recovery well, including workstation and cyclone, surface mounting has water pump and cyclone on the workstation, and the water pump leads to pipe intercommunication has the water injection pipe, and cyclone and the tangent intercommunication of water inlet, water pump lead to pipe intercommunication at cyclone's delivery port, the inside filter screen that is provided with of delivery port, and delivery port department is provided with the scraper blade subassembly, and the sand outlet intercommunication of cyclone bottom has the sand setting chamber, and the bottom in sand setting chamber is provided with the valve. The cyclone separator is used for separation, most of silt can be separated, and the load of the filter screen is reduced. The power blade is pushed by vortex water flow, so that the accumulation of silt on the filter screen is avoided, the device is simplified, the production cost is reduced, and the water leakage phenomenon is avoided. The utility model discloses the advantage: simple structure, convenient operation, design benefit, low in production cost, the filter screen load is little, the facilitate promotion is implemented.

Description

Water injection device for oil production well

Technical Field

The utility model relates to an oil recovery machinery technical field specifically is a water injection device for oil recovery well.

Background

In the field of oil extraction in oil fields, along with the gradual development of oil fields, the difficulty of oil field exploitation is increasingly high, oil well exploitation needs to be realized through water injection in the oil field exploitation process, and water injection wells are more and more needed.

Chinese patent (No. CN 208934673U, bulletin date: 2019.06.04) discloses a water injection device for oil extraction wells, which comprises a water injection pipe, a fixing assembly and a filtering assembly, wherein a fixing base comprises a fixing platform, a water injection pump is fixedly connected to the fixing platform, the water injection pipe is communicated with a water outlet of the water injection pump, a water inlet of the water injection pump is communicated with the filtering assembly, a filtering box of the filtering assembly is fixed on the fixing platform through a fixing support, the bottom of the filtering box is communicated with a water inlet pipe, multiple layers of filtering grids are sequentially arranged in the filtering box from top to bottom, scraping pieces are arranged at the positions of the filtering grids, the bottom of the filtering box is of an inclined structure, the lower end of the filtering box is communicated with a sand outlet pipe, a switch valve is communicated with the sand outlet pipe, and a leakage-proof sleeve is fixed at the communication. The device adopts the multilayer filter grille to filter, causes filter grille filtration load big, needs frequent maintenance, is not convenient for popularize and implement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil recovery well is with water injection device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an oil recovery is water injection device for well, includes workstation and cyclone, and surface mounting has water pump and cyclone on the workstation, and the water pump leads to pipe intercommunication has the water injection pipe, and under the drive of water pump, thereby the water injection is accomplished to the water injection pipe inside that the water injection pipe is got into to the water under high pressure. The cyclone separator is communicated with the water inlet in a tangent mode, water enters the cyclone separator from the water inlet, silt is separated, and water entering the water inlet forms spiral flow, so that silt is separated conveniently. The water pump leads to the water outlet of the water pipe and is communicated with the water outlet of the cyclone separator, and the filter screen is arranged inside the water outlet, so that water entering the cyclone separator can be conveniently filtered, and silt residue is avoided. The water outlet is provided with a scraper component, and the arrangement of the scraper component avoids the accumulation of silt on the filter screen to cause filtering difficulty.

The sand outlet at the bottom of the cyclone separator is communicated with a sand setting cavity, and the sand separated by the cyclone separator enters the interior of the sand setting cavity through the sand outlet to be deposited. The bottom in sand setting chamber is provided with the valve, opens the valve and can discharges the inside silt in sand setting chamber.

As a further aspect of the present invention: the scraper blade subassembly includes the axis of rotation, scraper blade and power leaf, and the axis of rotation rotates the central point that sets up at the filter screen and puts, and the lateral wall of axis of rotation is connected in the inner of scraper blade, and the outer end of scraper blade is connected with the power leaf, and the inside swirl rivers of water inlet promote the power leaf to make the scraper blade rotate at the filter screen top, thereby avoid piling up of silt on the filter screen.

As a further aspect of the present invention: the section of power leaf is V style of calligraphy structure, is convenient for promote the more smooth and easy rotation of scraper blade.

As a further aspect of the present invention: the scraper blade subassembly includes the axis of rotation, scraper blade and power leaf, and the fixed central point that sets up at the filter screen of axis of rotation puts, and the scraper blade inner rotates nestedly in the axis of rotation, the bottom fixedly connected with power leaf of scraper blade, and the inside swirl rivers of water inlet promote the power leaf to make the scraper blade rotate at the filter screen top, thereby avoid piling up of silt on the filter screen.

As a further aspect of the present invention: the lower part of the sand setting cavity is provided with a sand collecting tank, and the sand discharged from the sand setting cavity enters the sand collecting tank to be recycled.

As a further aspect of the present invention: the water outlet is of a horn-shaped structure with a downward opening, so that the flow of water is increased conveniently.

Compared with the prior art, the beneficial effects of the utility model are that: the cyclone separator is used for separation, most of silt can be separated, and the load of the filter screen is reduced. The scraper component is used for avoiding accumulation of silt, vortex water flow is used as power to push the power blade, so that the scraper rotates at the bottom of the filter screen, accumulation of silt on the filter screen is avoided, the device is simplified, production cost is reduced, and water leakage is avoided. The utility model discloses the advantage: simple structure, convenient operation, design benefit, low in production cost, the filter screen load is little, the facilitate promotion is implemented.

Drawings

Fig. 1 is a schematic perspective view of a water injection device for an oil production well.

Fig. 2 is a schematic diagram of the internal structure of a water injection device for an oil production well.

FIG. 3 is a schematic view showing the construction of a blade assembly in embodiment 1 of the water injection apparatus for oil recovery well.

Fig. 4 is a schematic structural diagram of a scraper assembly in embodiment 2 of the water injection device for oil production wells.

In the figure, a workbench 1, a water inlet 2, a cyclone separator 3, a water pipe 4, a water pump 5, a water injection pipe 6, a sand collection pool 7, a sand outlet 8, a scraper component 9, a water outlet 10, a sand setting cavity 11, a valve 12, a filter screen 13, a rotating shaft 14, a scraper 15 and a power blade 16.

Detailed Description

In order to clearly understand the technical features, objects and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

Example 1

Referring to fig. 1-3, the water injection device for the oil production well comprises a workbench 1 and a cyclone separator 3, wherein a water pump 5 and the cyclone separator 3 are installed on the upper surface of the workbench 1, the water pump 5 is communicated with a water injection pipe 6 through a water pipe 4, and high-pressure water enters the water injection pipe 6 under the driving of the water pump 5 so as to complete water injection. Cyclone 3 and water inlet 2 are tangent intercommunication, and the separation of silt is accomplished to the inside that water got into cyclone 3 from water inlet 2 to make the inside water that gets into water inlet 2 form the spiral flow, the separation of the silt of being convenient for. Water pump 5 passes through delivery port 10 of water pipe 4 intercommunication at cyclone 3, and delivery port 10 is inside to be provided with filter screen 13 and is convenient for filter the water that gets into cyclone 3 inside, avoids having silt to remain. The water outlet 10 is of a horn-shaped structure with a downward opening, so that the flow of water is increased conveniently. The scraper component 9 is arranged at the water outlet 10, and the scraper component 9 prevents sediment from being accumulated on the filter screen 13 to cause filtering difficulty. The scraper component 9 comprises a rotating shaft 14, scrapers 15 and power blades 16, the rotating shaft 14 is rotatably arranged at the central position of the filter screen 13, the side wall of the rotating shaft 14 is connected to the inner end of each scraper 15, the outer end of each scraper 15 is connected with the power blades 16, and the power blades 16 are pushed by vortex water flow in the water inlet 2, so that the scrapers 15 rotate at the top of the filter screen 13, and sediment accumulation on the filter screen 13 is avoided. The section of the power blade 16 is of a V-shaped structure, so that the scraper 15 can be conveniently pushed to rotate more smoothly.

The sand outlet 8 at the bottom of the cyclone separator 3 is communicated with a sand settling chamber 11, and the sand separated by the cyclone separator 3 enters the sand settling chamber 11 through the sand outlet 8 for deposition. The bottom of the sand setting chamber 11 is provided with a valve 12, and the sand inside the sand setting chamber 11 can be discharged by opening the valve 12. The below of sand setting chamber 11 is provided with sand collection tank 7, and the silt of following sand setting chamber 11 exhaust gets into sand collection tank 7 inside and retrieves.

The utility model discloses a theory of operation is: the separation of silt is accomplished from the inside that water got into cyclone 3 from water inlet 2 to make the inside water that gets into water inlet 2 form the spiral flow, the inside swirl rivers of water inlet 2 promote power leaf 16, thereby make scraper blade 15 rotate at filter screen 13 top, thereby avoid piling up of silt on filter screen 13. The water inside the cyclone 3 enters the water injection pipe 6 by the water pump 5, thereby completing the water injection. Silt separated by the cyclone separator 3 enters the sand setting cavity 11 through the sand outlet 8 to be deposited. The sand inside the sand setting chamber 11 can be discharged by opening the valve 12.

Example 2

Referring to fig. 4, on the basis of embodiment 1, the scraper assembly 9 includes a rotating shaft 14, a scraper 15 and a power blade 16, the rotating shaft 14 is fixedly disposed at the center of the filter screen 13, the inner end of the scraper 15 is rotatably embedded on the rotating shaft 14, the power blade 16 is fixedly connected to the bottom of the scraper 15, and the swirling water flow inside the water inlet 2 pushes the power blade 16, so that the scraper 15 rotates at the top of the filter screen 13, thereby preventing the sediment from being accumulated on the filter screen 13.

The above-mentioned embodiments only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. The utility model provides a water injection device for oil recovery well, including workstation (1) and cyclone (3), surface mounting has water pump (5) and cyclone (3) on workstation (1), water pump (5) have water injection pipe (6) through water pipe (4) intercommunication, cyclone (3) and water inlet (2) are tangent to be communicated, a serial communication port, water pump (5) communicate delivery port (10) in cyclone (3) through water pipe (4), delivery port (10) inside is provided with filter screen (13), delivery port (10) department is provided with scraper blade subassembly (9), sand outlet (8) intercommunication of cyclone (3) bottom has sand setting chamber (11), the bottom of sand setting chamber (11) is provided with valve (12).

2. The water injection apparatus for oil recovery wells according to claim 1, wherein the scraper assembly (9) comprises a rotary shaft (14), scrapers (15) and power vanes (16), the rotary shaft (14) is rotatably disposed at a central position of the screen (13), side walls of the rotary shaft (14) are connected to inner ends of the scrapers (15), and outer ends of the scrapers (15) are connected with the power vanes (16).

3. The water injection device for the oil extraction well according to the claim 2, characterized in that the cross section of the power blade (16) is V-shaped.

4. The water injection device for the oil extraction well is characterized in that the scraper component (9) comprises a rotating shaft (14), scrapers (15) and power blades (16), the rotating shaft (14) is fixedly arranged at the center of the filter screen (13), the inner ends of the scrapers (15) are rotatably nested on the rotating shaft (14), and the power blades (16) are fixedly connected to the bottoms of the scrapers (15).

5. The water injection device for oil production wells according to claim 2 or 4, characterized in that a sand trap (7) is arranged below the sand settling chamber (11).

6. The water injection device for the oil production well according to the claim 2 or 4, characterized in that the water outlet (10) is a trumpet-shaped structure with a downward opening.

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