Intelligent and efficient water injection device

By installing a filter box and filtration structure in the water injection device, the clogging problem caused by untreated injection water is solved, achieving efficient water filtration and flow control, and improving the water injection effect.

CN224314972UActive Publication Date: 2026-06-02SHAANXI QUANAN PETROCHEMICAL MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI QUANAN PETROCHEMICAL MACHINERY CO LTD
Filing Date
2025-08-19
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing technologies, the injected water is not pretreated and filtered, which causes suspended solids and silt to clog the pores of the oil layer and reduce permeability.

Method used

Design an intelligent and efficient water injection device, including a filter box and a filtration structure, which can pre-treat and filter the injected water, and facilitate cleaning through the design of easily disassembled filter plates, combined with a flow regulation mechanism to control the water injection volume.

Benefits of technology

It achieves effective pretreatment of injected water, prevents clogging of injection wells and oil layer pores, and improves water injection effect and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to oil extraction water injection technology field especially, more particularly to a kind of intelligent efficient water injection device. Including filter box, the inside of filter box is provided with filter plate, the lower surface of filter plate is fixedly connected with clamping strip, the outer wall of clamping strip is slidably connected in the inside of filter box, the inside of filter plate is slidably connected with push column, the bottom end of push column is fixedly connected with inclined block, the inside of filter plate is slidably connected with clamping post, the inside of clamping post is set with sliding slot, the outer wall of clamping post is fixedly connected with push piece, the outer wall of push piece is fixedly connected with the outer wall of spring, the outer wall of filter box is provided with connecting assembly. The utility model provides a kind of intelligent efficient water injection device, by setting filter structure, make the device convenient for the pretreatment filtration of injection water, simultaneously convenient for the structure design of disassembly to clean up and replace filter plate, it is convenient to remove solid impurities in water, prevent plugging water injection well and oil layer pore.
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Description

Technical Field

[0001] This utility model relates to the field of oilfield water injection technology, and in particular to an intelligent and efficient water injection device. Background Technology

[0002] Water injection in oil production is a key technology in oilfield development, mainly used to improve the recovery rate of crude oil. Its basic principle is to inject water into the underground oil layer and use the water pressure to push the crude oil to the oil well, thereby improving the recovery rate of crude oil. Intelligent and efficient water injection devices can improve water injection efficiency and optimize water injection effect. Through water pretreatment and intelligent control, the wear and corrosion of the device can be reduced.

[0003] Patent document CN206625824U discloses an oilfield water injection sand filtering device, including a fixed sleeve. A liquid inlet pipe is located at the top of one side of the fixed sleeve, and a drain pipe is located at the bottom of the fixed sleeve away from the liquid inlet pipe. An installation box is bolted to the middle of the top of the inner cavity of the fixed sleeve. A rotating rod is movably mounted inside the installation box, and a fan blade is fixedly mounted at one end of the rotating rod passing through the installation box. A first conical toothed plate is fixedly mounted on the surface of the rotating rod inside the installation box. This invention, by configuring the installation box, rotating rod, fan blade, first conical toothed plate, second conical toothed plate, and spiral rod inside the fixed sleeve, works in conjunction with the water flowing in through the liquid inlet pipe to facilitate the rotation of the water flow at the bottom of the installation box. This prevents sand and gravel accumulation at the filter screen and through the holes, ensuring the water flow through the filter screen and the flow of sand and gravel through the through holes, thus guaranteeing the advantages of efficient sand control in oilfield production.

[0004] When using the above technology, the following technical problems were found in the prior art: the utility model directly injects water into the inside of the fixed sleeve without setting a mechanism for pre-treatment and filtration of the injected water. If the injected water contains impurities such as suspended solids and silt, it may clog the pores of the oil layer and reduce the permeability of the oil layer. Therefore, an intelligent and efficient water injection device is designed to provide another technical solution to the above technical problems. Utility Model Content

[0005] Therefore, it is necessary to provide an intelligent and efficient water injection device to address the above-mentioned technical problems, which can solve the problem that the injected water is not pre-treated and filtered, and that impurities such as suspended solids and silt are easily generated in the injected water, which can clog the pores of the oil layer and reduce the permeability of the oil layer.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A smart and efficient water injection device includes a filter box, inside which a filter plate is disposed. A retaining strip is fixedly connected to the lower surface of the filter plate. The outer wall of the retaining strip is slidably connected to the inside of the filter box. A push column is slidably connected to the inside of the filter plate. An inclined block is fixedly connected to the bottom end of the push column. The outer wall of the inclined block is slidably connected to the inside of the filter plate. A retaining column is slidably connected to the inside of the filter plate. A sliding groove is formed inside the retaining column. The outer wall of the inclined block is disposed on the inner wall of the sliding groove. A push plate is fixedly connected to the outer wall of the retaining column. The outer wall of the push plate is slidably connected to the inside of the filter plate. The outer wall of the push plate is fixedly connected to the outer wall of a spring. The outer wall of the spring is fixedly connected to the inside of the filter plate. The outer wall of the retaining column abuts against the inside of the filter box. A connecting assembly is disposed on the outer wall of the filter box.

[0008] Preferably, the connecting assembly includes a connecting pipe, the outer wall of which is fixedly connected to one side of the filter box, and an injection cylinder is fixedly connected to the outer wall of the connecting pipe.

[0009] Preferably, a conveying pipe is fixedly connected to the other side of the filter box, and an injection pipe is fixedly connected inside the conveying pipe.

[0010] Preferably, a fixed box is fixedly connected to the outer wall of the conveying pipe, a motor is fixedly connected to the outer wall of the fixed box, and a worm gear is fixedly installed at the output end of the motor.

[0011] Preferably, the two ends of the worm are rotatably connected inside the fixed box, and the tooth ends of the worm are engaged with worm wheels.

[0012] Preferably, a fixed column is fixedly connected inside the worm gear, and the top end of the fixed column is rotatably connected inside the fixed box.

[0013] Preferably, the bottom end of the fixed column is fixedly connected to a connecting column, the outer wall of the connecting column is rotatably connected to the inside of the fixed box, and the outer wall of the connecting column is rotatably connected to the inside of the conveying pipe.

[0014] Preferably, an adjusting plate is fixedly connected to the bottom end of the connecting column, and the outer wall of the adjusting plate is in contact with the inner wall of the conveying pipe.

[0015] It is clear without a doubt that the technical solution described above in this application can solve the technical problem that this application aims to address.

[0016] At the same time, through the above technical solutions, this utility model has at least the following beneficial effects:

[0017] This utility model provides an intelligent and efficient water injection device. By setting up a filtration structure, the device can easily pre-treat and filter the injected water. At the same time, the easy-to-disassemble structural design makes it easy to clean and replace the filter plate, which can remove solid impurities in the water and prevent clogging of the water injection well and oil layer pores. Moreover, the filter plate can be cleaned and replaced quickly without the need for tools.

[0018] This invention, by setting a flow regulation mechanism, allows the device to flexibly adjust the angle of the regulating plate to meet the water injection requirements of different oil layers, thereby controlling the water flow rate. By controlling the water injection volume of different oil layers, it ensures that each oil layer can obtain the optimal water injection pressure and volume, thus improving the water injection effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the conveying pipe of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the filter box of this utility model;

[0023] Figure 4 This is a partial structural diagram of the card post of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the fixing box of this utility model.

[0025] In the diagram: 1. Filter box; 2. Filter plate; 3. Clamping strip; 4. Push column; 5. Inclined block; 6. Clamping column; 7. Slide groove; 8. Push plate; 9. Spring; 10. Connecting assembly; 1001. Connecting pipe; 1002. Injection cylinder; 11. Conveying pipe; 12. Injection pipe; 13. Fixed box; 14. Motor; 15. Worm gear; 16. Worm wheel; 17. Fixed column; 18. Connecting column; 19. Adjusting plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] Reference Figures 1-5 A smart and efficient water injection device includes a filter box 1, a filter plate 2 inside the filter box 1, a retaining strip 3 fixedly connected to the lower surface of the filter plate 2, the outer wall of the retaining strip 3 slidably connected to the inside of the filter box 1, a push column 4 slidably connected to the inside of the filter plate 2, an inclined block 5 fixedly connected to the bottom end of the push column 4, the outer wall of the inclined block 5 slidably connected to the inside of the filter plate 2, a retaining column 6 slidably connected to the inside of the filter plate 2, a sliding groove 7 opened inside the retaining column 6, the outer wall of the inclined block 5 being set on the inner wall of the sliding groove 7, a push plate 8 fixedly connected to the outer wall of the retaining column 6, the outer wall of the push plate 8 slidably connected to the inside of the filter plate 2, the outer wall of the push plate 8 fixedly connected to the outer wall of the spring 9, the outer wall of the spring 9 fixedly connected to the inside of the filter plate 2, the outer wall of the retaining column 6 abutting against the inside of the filter box 1, and a connecting assembly 10 provided on the outer wall of the filter box 1.

[0031] The usage process of the intelligent and efficient water injection device provided by this utility model is as follows:

[0032] Pre-treatment and filtration of the water before injection ensures stable water quality and reduces the impact of water quality fluctuations on the injection effect. Filter plate 2 filters and adsorbs impurities. Filter plate 2 is detachable, allowing selection of different pore sizes to meet varying water quality filtration needs, facilitating better water filtration. Filter plate 2 secures the retaining strip 3, limiting the position of filter plate 2 within the filter box 1 and preventing displacement due to water injection impact. Filter plate 2 is prone to clogging during long-term use. When cleaning or replacement is required, push column 4 is pushed. Push column 4 secures inclined block 5. As push column 4 slides inside filter plate 2, it pushes inclined block 5 to slide synchronously, positioning inclined block 5 on the inner wall of the groove 7 within the retaining column 6. When the inclined block 5 is pushed by the push column 4, it slides against the inner wall of the slide groove 7. At the same time, due to the inclined surface design of the inclined block 5, it will exert a squeezing force on the clamping column 6, causing the clamping column 6 to slide inside the filter plate 2. The clamping column 6 plays the role of restricting the position between the filter box 1 and the filter plate 2. By sliding the clamping column 6 into or out of the filter box 1, the filter plate 2 can be fixed or disassembled. The clamping column 6 plays the role of fixing the push plate 8, which can drive the push plate 8 to slide inside the filter plate 2. The spring 9 is placed between the push plate 8 and the filter box 1. The spring 9 will be squeezed by the sliding of the push plate 8. When the spring 9 is not subjected to external force, it will push the clamping column 6 against the inside of the filter box 1 through its own rebound action, thus fixing the filter plate 2. The pre-filtration process removes solid impurities in the water, preventing blockage of the water injection well and oil layer pores. At the same time, the filter plate 2 can be cleaned and replaced quickly without the need for tools.

[0033] Reference Figure 1 The connecting assembly 10 includes a connecting pipe 1001, the outer wall of which is fixedly connected to one side of the filter box 1, and an injection cylinder 1002 is fixedly connected to the outer wall of the connecting pipe 1001.

[0034] The usage process of the intelligent and efficient water injection device provided by this utility model is as follows:

[0035] The right side of the filter box 1 is connected to the connecting pipe 1001. The connecting pipe 1001 connects the filter box 1 and the injection cylinder 1002. The pre-treated and filtered water can be injected into the inside of the injection cylinder 1002 through the connecting pipe 1001. The connecting pipe 1001 is completely aligned with the filter hole position in the center of the filter plate 2, which facilitates better discharge of the filtered water.

[0036] Reference Figure 1 A conveying pipe 11 is fixedly connected to the other side of the filter box 1, and an injection pipe 12 is fixedly connected inside the conveying pipe 11.

[0037] The usage process of the intelligent and efficient water injection device provided by this utility model is as follows:

[0038] The left side of the filter box 1 is connected to the conveying pipe 11, which fixes the injection pipe 12. Water can be injected into the inside of the conveying pipe 11 through the injection pipe 12 and transported to the inside of the filter box 1 for subsequent pre-treatment filtration. The position of the filter hole in the center of the conveying pipe 11 is completely aligned with that in the filter plate 2, which facilitates better filtration.

[0039] Reference Figure 1 and Figure 5 A fixed box 13 is fixedly connected to the outer wall of the conveying pipe 11. A motor 14 is fixedly connected to the outer wall of the fixed box 13. A worm gear 15 is fixedly installed at the output end of the motor 14. Both ends of the worm gear 15 are rotatably connected to the inside of the fixed box 13. A worm wheel 16 is meshed with the tooth end of the worm gear 15. A fixed column 17 is fixedly connected to the inside of the worm wheel 16. The top end of the fixed column 17 is rotatably connected to the inside of the fixed box 13. A connecting column 18 is fixedly connected to the bottom end of the fixed column 17. The outer wall of the connecting column 18 is rotatably connected to the inside of the fixed box 13 and the inside of the conveying pipe 11. An adjusting plate 19 is fixedly connected to the bottom end of the connecting column 18. The outer wall of the adjusting plate 19 is in contact with the inner wall of the conveying pipe 11.

[0040] The usage process of the intelligent and efficient water injection device provided by this utility model is as follows:

[0041] The fixed box 13 supports and fixes the motor 14. By starting the motor 14, the worm gear 15 can be driven to rotate stably inside the fixed box 13. The worm gear 15 meshes with the worm wheel 16, which can rotate synchronously through the transmission action of the worm gear 15. The worm wheel 16 fixes the fixed column 17 and can drive the fixed column 17 to rotate synchronously with the rotation of the worm wheel 16. The fixed column 17 is connected to the connecting column 18. When the fixed column 17 rotates, it will drive the connecting column 18 to rotate. The connecting column 18 connects the fixed column 17 and the adjusting plate 19, so that the adjusting plate 19 rotates inside the delivery pipe 11 at the same time through the rotation of the connecting column 18. By adjusting the rotation angle of the adjusting plate 19, the flow rate of the injected water can be controlled. By controlling the water injection volume of different oil layers, it can be ensured that each oil layer can obtain the optimal water injection pressure and water volume, thereby improving the water injection effect.

[0042] In this embodiment, each structure has its own service life. In actual manufacturing and application, the corresponding structure made of different materials can be replaced according to the needs of use.

[0043] In this embodiment, the motor is a self-locking motor, which can drive the connected structure to rotate normally when it is powered on and working. When the motor stops working, it can prevent the connected structure from rotating through its self-locking function.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent and efficient water injection device, comprising a filter box (1), characterized in that, The filter box (1) is equipped with a filter plate (2) inside. A retaining strip (3) is fixedly connected to the lower surface of the filter plate (2). The outer wall of the retaining strip (3) is slidably connected to the inside of the filter box (1). A pusher (4) is slidably connected to the inside of the filter plate (2). An inclined block (5) is fixedly connected to the bottom end of the pusher (4). The outer wall of the inclined block (5) is slidably connected to the inside of the filter plate (2). A retaining post (6) is slidably connected to the inside of the filter plate (2). The retaining post (6) has an opening inside. The outer wall of the inclined block (5) is set on the inner wall of the chute (7), the outer wall of the locking post (6) is fixedly connected to the push plate (8), the outer wall of the push plate (8) is slidably connected to the inside of the filter plate (2), the outer wall of the push plate (8) is fixedly connected to the outer wall of the spring (9), the outer wall of the spring (9) is fixedly connected to the inside of the filter plate (2), the outer wall of the locking post (6) abuts against the inside of the filter box (1), and the outer wall of the filter box (1) is provided with a connecting assembly (10).

2. The intelligent and efficient water injection device according to claim 1, characterized in that, The connecting assembly (10) includes a connecting pipe (1001), the outer wall of which is fixedly connected to one side of the filter box (1), and an injection cylinder (1002) is fixedly connected to the outer wall of the connecting pipe (1001).

3. The intelligent and efficient water injection device according to claim 1, characterized in that, A conveying pipe (11) is fixedly connected to the other side of the filter box (1), and an injection pipe (12) is fixedly connected inside the conveying pipe (11).

4. The intelligent and efficient water injection device according to claim 3, characterized in that, A fixed box (13) is fixedly connected to the outer wall of the conveying pipe (11), and a motor (14) is fixedly connected to the outer wall of the fixed box (13). A worm gear (15) is fixedly installed at the output end of the motor (14).

5. The intelligent and efficient water injection device according to claim 4, characterized in that, The two ends of the worm (15) are rotatably connected to the inside of the fixed box (13), and the tooth ends of the worm (15) are meshed with a worm wheel (16).

6. The intelligent and efficient water injection device according to claim 5, characterized in that, The worm gear (16) is fixedly connected to a fixed column (17), and the top end of the fixed column (17) is rotatably connected to the inside of the fixed box (13).

7. The intelligent and efficient water injection device according to claim 6, characterized in that, The bottom end of the fixed column (17) is fixedly connected to a connecting column (18), the outer wall of the connecting column (18) is rotatably connected to the inside of the fixed box (13), and the outer wall of the connecting column (18) is rotatably connected to the inside of the conveying pipe (11).

8. The intelligent and efficient water injection device according to claim 7, characterized in that, An adjusting plate (19) is fixedly connected to the bottom end of the connecting column (18), and the outer wall of the adjusting plate (19) is in contact with the inner wall of the conveying pipe (11).