Filtering device for oilfield water injection

Abstract

The utility model discloses a filtering device for oilfield water injection, and relates to the technical field of filtering, the filtering device for oilfield water injection comprises a filtering assembly, and the filtering assembly is used for filtering oilfield water injection; the mounting assembly is arranged on the outer side of the filtering assembly, the surface of the bottom of the filtering assembly is connected with the bottom of an inner cavity of the mounting assembly, and the mounting assembly is used for mounting the filtering assembly; the limiting assembly is arranged in an inner cavity of the filtering assembly, the limiting assembly is used for limiting and fixing the inner cavity of the filtering assembly, the mounting assembly comprises a water injection tank, and a tank cover is arranged at the open end of the top surface of the water injection tank; according to the oil field injection water filtering device, oil field injection water can be filtered, the filtering assembly can be replaced, the filtering effect cannot be affected, and then the filtering capacity can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of filtration, in particular to a filtration device for oil field water injection. Background Art

[0002] The process of injecting water of required quality from the water injection well into the oil layer to ensure the oil layer pressure is called oil field water injection. The existing patent is a simple water treatment and filtering device for oil field water injection. The patent publication number is CN215388091U, which includes a filter box, an oil storage tank is arranged at the upper end of one side of the filter box, a treatment box is arranged at the end of the filter box away from the oil storage tank, the treatment box and the filter box are connected by a fixed block, a sand filter is arranged in the middle of the inner part of the treatment box, and a filter is arranged on one side of the inner wall of the filter box and near the lower end of the opening. An inclined plate is arranged, and water outlet pipe 1 and water outlet pipe 2 are respectively arranged on both sides of the lower end of the filter box, the end of water outlet pipe 1 is away from the water outlet pipe 2, and a motor box is arranged on one side of the upper end of the filter box, and a rotating shaft matched with the driving motor inside the motor box is arranged at one end of the motor box, and a plurality of connecting rods are arranged on the rotating shaft, and an oil filter net is arranged at one end of the connecting rod, and both ends of the oil filter net are connected by an elastic plate, which has the beneficial effects of improving the water injection efficiency of the oil field, increasing the water injection amount, realizing high and stable production of the oil field, and obtaining a higher recovery rate.

[0003] Regarding the above-mentioned related technologies, the inventors believe that the following defects exist: although water can be injected for filtering, it is inconvenient to clean the filter components, which affects the filtering effect after long-term use and further reduces the filtering capacity. Therefore, we propose a filtering device for oil field water injection to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a filtering device for oilfield water injection, which solves the problem that it is inconvenient to clean the filtering component.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a filtering device for oil field water injection, comprising:

[0006] A filter assembly, wherein the filter assembly is used to filter oilfield injection water;

[0007] An installation component, the installation component is arranged outside the filter component, the bottom surface of the filter component is connected to the bottom of the inner cavity of the installation component, and the installation component is used to install the filter component; and

[0008] A limiting component is arranged in the inner cavity of the filter component, and is used to limit and fix the inner cavity of the filter component.

[0009] Preferably, the installation assembly comprises a water injection box, and a box cover is provided at the open end of the top surface of the water injection box;

[0010] A water inlet pipe is embedded and connected to one side of the top open end of the water injection box, and a water outlet pipe is embedded and connected to one side of the bottom of the water injection box and located in the opposite direction of the water inlet pipe;

[0011] A support ring is arranged in the inner cavity of the water filling box and close to the bottom surface of the box cover. A support part is arranged at the center of the bottom surface of the inner cavity of the water filling box. The top surface of the support part is in contact with the bottom surface of the filter assembly.

[0012] Preferably, the support portion comprises a support column, the support column is arranged at a central position on the bottom surface of the water filling tank, a cross is arranged on the top surface of the support column, and the top surface of the cross is in contact with the bottom surface of the filter assembly.

[0013] Preferably, a handle is provided at a central position on the top surface of the box cover, and the handle is used to facilitate the staff to open the box cover.

[0014] Preferably, the filter assembly comprises a filter cartridge, the filter cartridge is arranged on the top surface of the support ring, and the bottom surface of the filter cartridge is in contact with the top surface of the cross, a partition is arranged on the top surface of the filter cartridge, a fine-mesh filter, activated carbon and sponge are arranged in sequence in the inner cavity of the filter cartridge, and one side wall of the sponge is in contact with the inner wall of the filter cartridge;

[0015] An external thread column is arranged at the center of the bottom surface of the filter cartridge, and the top end of the external thread column is rotatably connected to the bottom end of the limiting assembly.

[0016] Preferably, handles are provided on both sides of the top surface of the filter cartridge, and the handles are used to lift the filter cartridge out of the inner cavity of the water filling tank.

[0017] Preferably, the position limiting assembly comprises a fixing column, the fixing column is arranged in the inner cavity of the filter cartridge, an internal threaded hole is opened on the bottom surface of the fixing column, and the fixing column is rotatably connected to the external threaded column through the internal threaded hole;

[0018] A plurality of connecting plates are arranged around the outer side of the fixing column, and a limiting mesh plate is arranged at one end of each connecting plate, and the outer side of the limiting mesh plate is fitted with the fine-mesh filter screen.

[0019] Beneficial Effects

[0020] The utility model provides a filtering device for oil field water injection. Compared with the prior art, it has the following advantages:

[0021] Beneficial effects:

[0022] The filter device for oilfield water injection, when it is necessary to filter the oilfield water injection, firstly place the installation component at a preset position, and then install the filter component in the installation component, so that the oilfield water injection can flow to the inner cavity of the filter component through the installation component, and then the filter component can filter the oilfield water injection; since the inner cavity of the filter component is installed with a limit assembly, the limit assembly can limit and fix the filter assembly, and then the stability of the filter assembly can be improved; when it is necessary to clean the filter assembly, the top of the installation component needs to be opened, so that the staff can first remove the limit assembly, and then take the filter assembly out of the inner cavity of the installation component, and then it is convenient for the staff to clean the filter assembly, so as to improve the filtering capacity of the filter assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall planing structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the installation assembly structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the planed surface structure of the installation assembly of the utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the filter assembly of the utility model;

[0027] Figure 5 This is a schematic diagram of the planed structure of the filter assembly of the utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0029] In the figure: 1. Installation assembly; 11. Water filling tank; 12. Tank cover; 13. Water inlet pipe; 14. Water outlet pipe; 15. Support ring; 16. Support column; 17. Cross; 18. Handle; 2. Filter assembly; 21. Filter cartridge; 22. Spacer; 23. Fine-mesh filter; 24. Activated carbon; 25. Sponge; 26. Externally threaded column; 27. Handle; 3. Limiting assembly; 31. Fixed column; 32. Internally threaded hole; 33. Connecting plate; 34. Limiting mesh plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] See also Figure 1-6 The utility model provides a technical solution: a filtering device for oilfield water injection, comprising: a filtering component 2, the filtering component 2 is used to filter the oilfield water injection; a mounting component 1, the mounting component 1 is arranged on the outside of the filtering component 2, the bottom surface of the filtering component 2 is connected to the bottom of the inner cavity of the mounting component 1, the mounting component 1 is used to install the filtering component 2; and a limiting component 3, the limiting component 3 is arranged in the inner cavity of the filtering component 2, the limiting component 3 is used to limit and fix the inner cavity of the filtering component 2;

[0032] When it is necessary to filter the oilfield water injection, first place the installation component 1 at the preset position, and then install the filter component 2 in the installation component 1, so that the oilfield water injection can flow through the installation component 1 to the inner cavity of the filter component 2, and then the filter component 2 can filter the oilfield water injection. Since the inner cavity of the filter component 2 is installed with a limiting component 3, the limiting component 3 can limit and fix the filter component 2, thereby improving the stability of the filter component 2. When it is necessary to clean the filter component 2, it is necessary to open the top of the installation component 1, so that the staff can first remove the limiting component 3, and then take the filter component 2 out of the inner cavity of the installation component 1, which can facilitate the staff to clean the filter component 2, so as to improve the filtering capacity of the filter component 2.

[0033] The installation component 1 includes a water injection box 11, and a box cover 12 is provided at the open end of the top surface of the water injection box 11; an inlet pipe 13 is embedded and connected to one side of the top open end of the water injection box 11, and an outlet pipe 14 is embedded and connected to one side of the bottom of the water injection box 11 and located in the opposite direction of the water inlet pipe 13; a support ring 15 is provided in the inner cavity of the water injection box 11 and close to the bottom surface of the box cover 12, and a support part is provided at the center of the bottom surface of the inner cavity of the water injection box 11, and the top surface of the support part is in contact with the bottom surface of the filter assembly 2, and the support part includes a support column 16, and the support column 16 is provided at the center of the bottom surface of the water injection box 11, and a cross 17 is provided on the top surface of the support column 16, and the top surface of the cross 17 is in contact with the bottom surface of the filter assembly 2, and a handle 18 is provided at the center of the top surface of the box cover 12, and the handle 18 is used to facilitate the staff to open the box cover 12;

[0034] By installing the water injection box 11 in the assembly 1, it can be placed in a preset position and provide an installation space for the box cover 12, so that the water injection box 11 can provide support for the box cover 12. Since the inner cavity of the water injection box 11 and the bottom surface of the box cover 12 are fixedly connected with a support ring 15, the filter assembly 2 can be installed on the top surface of the support ring 15, so that the support ring 15 can provide support for the filter assembly 2. Since the water inlet pipe 13 is embedded and connected to one side of the top open end of the water injection box 11, and the water outlet pipe 14 is embedded and connected to one side of the bottom of the water injection box 11 and located in the opposite direction of the water inlet pipe 13, the oil field injection water can flow to the inner cavity of the filter assembly 2 through the water inlet pipe 13, and the oil field injection water can flow to the inner cavity of the water injection box 11 after being filtered by the filter assembly 2, so that the filter assembly 2 can be The oilfield water is injected and filtered, and then flows out through the outlet pipe 14. Since a support column 16 is fixedly connected to the center of the bottom surface of the inner cavity of the water injection box 11, and a cross 17 is fixedly connected to the top surface of the support column 16, and the top surface of the cross 17 fits with the bottom surface of the filter component 2, the support column 16 can provide support for the cross 17, and then the cross 17 can provide support for the filter component 2, so as to improve the stability of the filter component 2. Since a handle 18 is fixedly connected to the center of the top surface of the box cover 12, the staff can open the box cover 12 through the handle 18, and then the staff can take the filter component 2 out of the inner cavity of the water injection box 11, so that the staff can clean the filter component 2 conveniently, thereby improving the filtering capacity.

[0035] See also Figure 1 , Figure 4 , Figure 5 The filter assembly 2 includes a filter cartridge 21, which is arranged on the top surface of the support ring 15, and the bottom surface of the filter cartridge 21 is in contact with the top surface of the cross 17. A partition 22 is arranged on the top surface of the filter cartridge 21, and a fine-mesh filter 23, activated carbon 24 and a sponge 25 are arranged in sequence in the inner cavity of the filter cartridge 21, and one side wall of the sponge 25 is in contact with the inner wall of the filter cartridge 21; an external threaded column 26 is arranged at the center of the bottom surface of the filter cartridge 21, and the top end of the external threaded column 26 is rotatably connected to the bottom end of the limit assembly 3, and handles 27 are arranged on both sides of the top surface of the filter cartridge 21, and the handles 27 are used to lift the filter cartridge 21 out of the inner cavity of the water injection tank 11;

[0036] The filter cartridge 21 in the filter assembly 2 can be installed on the top surface of the support ring 15 and can provide an installation base for the partition 22, so that the filter cartridge 21 can provide support for the partition 22, and then the oil field injection water flowing into the water inlet pipe 13 can be filtered for the first time through the partition 22. Since the inner cavity of the filter cartridge 21 is successively installed with a fine-mesh filter 23, activated carbon 24 and sponge 25, and one side wall of the sponge 25 is in contact with the inner wall of the filter cartridge 21, the oil field injection water after the initial filtration can be filtered again through the fine-mesh filter 23, activated carbon 24 and sponge 25, so as to facilitate The purity of water injected into the oil layer can be ensured; since an external threaded column 26 is arranged at the center of the bottom surface of the filter cartridge 21, the bottom end of the limit assembly 3 can be rotatably connected to the external threaded column 26, thereby improving the stability of the filter cartridge 21; since handles 27 are fixedly connected to both sides of the top surface of the filter cartridge 21, it is convenient for workers to lift the filter cartridge 21 out of the inner cavity of the water injection tank 11 through the two handles 27, thereby making it convenient for workers to replace the fine-mesh filter screen 23, activated carbon 24 and sponge 25, so as to ensure good filtering ability.

[0037] See also Figure 1 , Figure 6 The limiting assembly 3 includes a fixing column 31, which is arranged in the inner cavity of the filter cartridge 21. An internal threaded hole 32 is provided on the bottom surface of the fixing column 31, and the fixing column 31 is rotatably connected to the external threaded column 26 through the internal threaded hole 32; a plurality of connecting plates 33 are arranged around the outer side of the fixing column 31, and a limiting mesh plate 34 is arranged at one end of each connecting plate 33, and the outer side of the limiting mesh plate 34 is in contact with the fine-mesh filter 23;

[0038] Through the fixed column 31 in the limiting assembly, it can be rotatably connected to the external threaded column 26 through the internal threaded hole 32, and can also provide an installation basis for multiple connecting plates 33. Since one end of each connecting plate 33 is fixedly connected to the limiting mesh plate 34, and the outer side of the limiting mesh plate 34 is in contact with the fine-mesh filter screen 23, it can not only play the function of preliminary filtering of water, but also limit the fine-mesh filter screen 23, thereby improving the stability of the fine-mesh filter screen 23.

[0039] During operation, when it is necessary to filter the oilfield water injection, first place the installation component 1 at the preset position, and then install the filter component 2 on the installation component 1, so that the oilfield water injection can flow through the installation component 1 to the inner cavity of the filter component 2, and then the filter component 2 can filter the oilfield water injection. Since the inner cavity of the filter component 2 is installed with a limiting component 3, the limiting component 3 can limit and fix the filter component 2, thereby improving the stability of the filter component 2. When it is necessary to clean the filter component 2, it is necessary to open the top of the installation component 1, so that the staff can first remove the limiting component 3, and then take the filter component 2 out of the inner cavity of the installation component 1, which can facilitate the staff to clean the filter component 2, so as to improve the filtering capacity of the filter component 2.

[0040] By installing the water injection box 11 in the assembly 1, it can be placed in a preset position and provide an installation space for the box cover 12, so that the water injection box 11 can provide support for the box cover 12. Since the inner cavity of the water injection box 11 and the bottom surface of the box cover 12 are fixedly connected with a support ring 15, the filter assembly 2 can be installed on the top surface of the support ring 15, so that the support ring 15 can provide support for the filter assembly 2. Since the water inlet pipe 13 is embedded and connected to one side of the top open end of the water injection box 11, and the water outlet pipe 14 is embedded and connected to one side of the bottom of the water injection box 11 and located in the opposite direction of the water inlet pipe 13, the oil field injection water can flow to the inner cavity of the filter assembly 2 through the water inlet pipe 13, and the oil field injection water can flow to the inner cavity of the water injection box 11 after being filtered by the filter assembly 2, so that the filter assembly 2 can be The oilfield water is injected and filtered, and then flows out through the outlet pipe 14. Since a support column 16 is fixedly connected to the center of the bottom surface of the inner cavity of the water injection box 11, and a cross 17 is fixedly connected to the top surface of the support column 16, and the top surface of the cross 17 fits with the bottom surface of the filter component 2, the support column 16 can provide support for the cross 17, and then the cross 17 can provide support for the filter component 2, so as to improve the stability of the filter component 2. Since a handle 18 is fixedly connected to the center of the top surface of the box cover 12, the staff can open the box cover 12 through the handle 18, and then the staff can take the filter component 2 out of the inner cavity of the water injection box 11, so that the staff can clean the filter component 2 conveniently, thereby improving the filtering capacity.

[0041] The filter cartridge 21 in the filter assembly 2 can be installed on the top surface of the support ring 15 and can provide an installation base for the partition 22, so that the filter cartridge 21 can provide support for the partition 22, and then the oil field injection water flowing into the water inlet pipe 13 can be filtered for the first time through the partition 22. Since the inner cavity of the filter cartridge 21 is successively installed with a fine-mesh filter 23, activated carbon 24 and sponge 25, and one side wall of the sponge 25 is in contact with the inner wall of the filter cartridge 21, the oil field injection water after the initial filtration can be filtered again through the fine-mesh filter 23, activated carbon 24 and sponge 25, so as to facilitate The purity of water injected into the oil layer can be ensured; since an external threaded column 26 is arranged at the center of the bottom surface of the filter cartridge 21, the bottom end of the limit assembly 3 can be rotatably connected to the external threaded column 26, thereby improving the stability of the filter cartridge 21; since handles 27 are fixedly connected to both sides of the top surface of the filter cartridge 21, it is convenient for workers to lift the filter cartridge 21 out of the inner cavity of the water injection tank 11 through the two handles 27, thereby making it convenient for workers to replace the fine-mesh filter screen 23, activated carbon 24 and sponge 25, so as to ensure good filtering ability.

[0042] Through the fixed column 31 in the limiting assembly, it can be rotatably connected to the external threaded column 26 through the internal threaded hole 32, and can also provide an installation basis for multiple connecting plates 33. Since one end of each connecting plate 33 is fixedly connected to the limiting mesh plate 34, and the outer side of the limiting mesh plate 34 is in contact with the fine-mesh filter screen 23, it can not only play the function of preliminary filtering of water, but also limit the fine-mesh filter screen 23, thereby improving the stability of the fine-mesh filter screen 23.

[0043] In summary, the device can not only filter the oil field injection water, but also replace the filter components, so as not to affect the filtering effect, thereby ensuring the filtering capacity.

[0044] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A filtering device for oilfield water injection, characterized in that: include: A filter assembly (2), the filter assembly (2) being used for filtering oilfield injection water; A mounting assembly (1), the mounting assembly (1) being arranged outside the filter assembly (2), the bottom surface of the filter assembly (2) being connected to the bottom of the inner cavity of the mounting assembly (1), and the mounting assembly (1) being used for mounting the filter assembly (2); and A position limiting component (3), wherein the position limiting component (3) is arranged in the inner cavity of the filter component (2), and the position limiting component (3) is used to position and fix the inner cavity of the filter component (2).

2. The oilfield water injection filtering device according to claim 1, characterized in that: The installation assembly (1) comprises a water injection box (11), and a box cover (12) is provided at an open end of the top surface of the water injection box (11); A water inlet pipe (13) is embedded and connected to one side of the top open end of the water injection box (11), and a water outlet pipe (14) is embedded and connected to one side of the bottom of the water injection box (11) and located in the opposite direction of the water inlet pipe (13); A support ring (15) is provided in the inner cavity of the water injection box (11) and near the bottom surface of the box cover (12), and a support portion is provided in the center of the bottom surface of the inner cavity of the water injection box (11), and the top surface of the support portion is in contact with the bottom surface of the filter assembly (2).

3. The oilfield water injection filtering device according to claim 2, characterized in that: The support portion comprises a support column (16), the support column (16) being arranged at a central position on the bottom surface of the water injection box (11), the top surface of the support column (16) being provided with a cross (17), the top surface of the cross (17) being in contact with the bottom surface of the filter assembly (2).

4. The oilfield water injection filtering device according to claim 2, characterized in that: A handle (18) is provided at a central position on the top surface of the box cover (12), and the handle (18) is used to facilitate staff to open the box cover (12).

5. The oilfield water injection filtering device according to claim 3, characterized in that: The filter assembly (2) comprises a filter cartridge (21), the filter cartridge (21) being arranged on the top surface of the support ring (15), and the bottom surface of the filter cartridge (21) being in contact with the top surface of the cross (17), the top surface of the filter cartridge (21) being provided with a partition net (22), the inner cavity of the filter cartridge (21) being provided with a fine-mesh filter net (23), activated carbon (24) and a sponge (25) in sequence, and a side wall of the sponge (25) being in contact with the inner wall of the filter cartridge (21); An external thread column (26) is provided at a central position on the bottom surface of the filter cartridge (21), and the top end of the external thread column (26) is rotatably connected to the bottom end of the limiting assembly (3).

6. The oilfield water injection filtering device according to claim 5, characterized in that: Handles (27) are provided on both sides of the top surface of the filter cartridge (21), and the handles (27) are used to lift the filter cartridge (21) out of the inner cavity of the water injection tank (11).

7. The oilfield water injection filtering device according to claim 5, characterized in that: The limiting assembly (3) comprises a fixing column (31), the fixing column (31) is arranged in the inner cavity of the filter cartridge (21), an internal thread hole (32) is opened on the bottom surface of the fixing column (31), and the fixing column (31) is rotatably connected to the external thread column (26) through the internal thread hole (32); A plurality of connecting plates (33) are arranged around the outer side of the fixing column (31), and a limiting mesh plate (34) is arranged at one end of each connecting plate (33), and the outer side of the limiting mesh plate (34) is in contact with the fine-mesh filter (23).

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