Oil field development sewage filtering device with deslagging function

Abstract

The utility model discloses an oilfield development sewage filtering device with a deslagging function, and relates to the technical field of oilfield sewage filtering. The oilfield development sewage filtering device with the deslagging function comprises a cart, a sewage treatment box is arranged on the surface of the top of the cart, a water inlet pipe is connected to one side of the top of the sewage treatment box in an embedded mode, and a material guiding assembly is arranged in the middle of an inner cavity of the sewage treatment box; an oil-water separation assembly and a grating plate are arranged on the two sides of the material guide assembly respectively, the oil-water separation assembly is located under the water inlet pipe, and the surface of the top of the oil-water separation assembly is flush with the top end of the grating plate. The filtered filter residues can be intensively discharged, so that the filter residues filtered by the oilfield development sewage filtering device can be independently treated, and the situation that a stratum oil outlet channel is blocked due to the fact that the filtered sewage is reinjected to the underground can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield sewage filtering, in particular to an oilfield development sewage filtering device with a slag discharge function. Background Art

[0002] A large amount of sewage will be generated during the development of oil fields. This sewage contains a large amount of toxic minerals. If it is discharged directly, it will cause great harm to the environment and people. The sewage needs to be filtered and discharged. Oilfield production sewage is a large and widespread source of pollution. Every year, about tens of billions of cubic meters of oilfield production sewage needs to be treated in the country. After these sewage is treated to meet the standards, most of it will be injected back into the formation as mining injection water, and a small part will be discharged into the natural environment. In the secondary recovery of oil, water injection development is the main development method. At present, most of the development wells in my country's oil fields use water injection development. Oilfield production sewage is used as oilfield injection water after treatment. It is adopted by major oil fields.

[0003] However, if the debris in the sewage is not dealt with in time and is still injected back into the underground, it will lead to blockage of the oil outlet channel of the formation, reduce the water injection efficiency and oil production. Therefore, we proposed an oilfield development sewage filtration device with slag discharge function to solve the above problems. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides an oilfield development sewage filtering device with a slag discharge function, which solves the problem of clogging the formation oil outlet channel due to impurities in the sewage not being processed in time.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: an oilfield development sewage filtering device with a slag discharge function, comprising a cart, a sewage treatment box is arranged on the top surface of the cart, and a water inlet pipe is embedded and connected to one side of the top of the sewage treatment box.

[0006] A material guide assembly is provided in the middle of the inner cavity of the sewage treatment tank, and an oil-water separation assembly and a grid plate are provided on both sides of the material guide assembly, the oil-water separation assembly is located directly below the water inlet pipe, and the top surface of the oil-water separation assembly is flush with the top of the grid plate;

[0007] A slag discharge hole is provided in the inner cavity of the sewage treatment box and on one side wall of the grid plate, and the bottom end of the inner cavity of the slag discharge hole is flush with the bottom end of the grid plate;

[0008] A water sprayer is embedded in the middle of the side wall of the sewage treatment tank and located opposite to the material guide assembly, and the water sprayer is parallel to the top surface of the oil-water separation assembly, and the water sprayer is used to wash away the filter residue on the top surface of the oil-water separation assembly;

[0009] A filter residue collecting assembly is arranged on one side wall of the sewage treatment tank and located at the position of the slag discharge hole, and the bottom end of the filter residue collecting assembly is connected to the top surface of the cart.

[0010] Preferably, the material guide assembly includes a partition plate, which is arranged in the middle of the inner cavity of the sewage treatment tank, and is used to separate the inner cavity of the sewage treatment tank;

[0011] A material guide hole is provided in the middle of the partition plate, and the bottom surface of the inner cavity of the material guide hole is flush with the top surface of the oil-water separation component and the top of the grid plate.

[0012] Preferably, the oil-water separation component comprises a water collecting bucket, which is arranged on one side of the inner cavity of the sewage treatment tank and is located directly below the water inlet pipe. A filter screen is arranged on the top surface of the water collecting bucket, and the filter screen is flush with the top surface of the grid plate.

[0013] The bottom end of the water collecting bucket is connected to an oil-water separator, the sewage discharge end of the oil-water separator is connected to a wastewater discharge pipe, the oil discharge end of the oil-water separator is connected to a waste oil discharge pipe, and the wastewater discharge pipe and the waste oil discharge pipe both pass through the side wall of the sewage treatment tank.

[0014] Preferably, the filter residue collection assembly comprises a waste collection cabinet, which is arranged on the side wall of the sewage treatment tank, a feed hole is provided in the middle and upper part of one side wall of the waste collection cabinet, and the feed hole is communicated with the slag discharge hole, and a sealing cover is provided on the top surface of the open end of the waste collection cabinet;

[0015] The side wall surface of the waste collection cabinet is provided with an observation window, and the observation window is used to observe the situation inside the waste collection cabinet.

[0016] Preferably, the filter residue collecting assembly further comprises a handle, the handle is arranged at a middle position of the top surface of the cover, and the handle is used to pull up the cover.

[0017] Preferably, it also includes a mud discharge assembly, which is embedded in the bottom position of the surface of the sewage treatment tank and is located on one side of the grid plate. The mud discharge assembly is used to discharge the mud filtered by the grid plate.

[0018] Preferably, the mud discharge assembly includes a sewage pipe, which is embedded in the bottom of the sewage treatment tank surface and is located on one side of the grid plate. A sewage pump is connected in series in the middle of the sewage pipe.

[0019] Preferably, the mud discharge assembly further comprises a valve, the valve is serially connected to the middle of the sewage pipe, and the valve is located outside the sewage pump, and the valve is used to open or close the sewage pipe flow.

[0020] Beneficial Effects

[0021] The utility model provides an oilfield development sewage filtering device with a slag discharge function. Compared with the prior art, it has the following beneficial effects:

[0022] When the staff needs to filter the wastewater from oilfield development, they first push the cart to move the wastewater filtering device to the designated location. When the staff needs to filter the wastewater from oilfield development, they first introduce the wastewater to be filtered from the water inlet pipe into the wastewater treatment tank, and then use the oil-water separation component to filter the impurities of the wastewater from oilfield development injected into the wastewater treatment tank, and separate the oil and water from the filtered wastewater, so that the grease and wastewater can be discharged separately, thereby reducing the pollution of land by wastewater;

[0023] Then, through the water sprinkler, an external water supply pipe can be connected, so that water can be sprayed on the top surface of the oil-water separation component, and then the filter residue on the top surface of the oil-water separation component can be flushed, so that the filter residue can be flushed onto the grid plate, and then through the grid plate, the flushed filter residue can be filtered again to clean up the sludge on the filter residue, and the flushed filter residue can be rolled into the filter residue collecting component through the residue discharge hole, so that the filter residue collecting component can collect the filter residue in a centralized manner, so that the staff can carry out subsequent treatment of the filter residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the material guide assembly of the utility model;

[0027] Figure 4 This is a schematic diagram of the oil-water separation component of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the filter residue collection component of the utility model;

[0029] Figure 6 This is a schematic diagram of the structure of the mud discharge component of the utility model.

[0030] In the figure: 1. cart; 2. sewage treatment tank; 3. water inlet pipe; 4. material guide assembly; 41. partition plate; 42. material guide hole; 5. oil-water separation assembly; 51. filter screen; 52. water sprayer; 53. water collecting bucket; 54. oil-water separator; 55. wastewater discharge pipe; 56. waste oil discharge pipe; 6. slag discharge hole; 7. grille plate; 8. filter residue collection assembly; 81. waste collection cabinet; 82. feed hole; 83. cover; 84. observation window; 9. mud discharge assembly; 91. sewage pump; 92. sewage pipe. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1 , Figure 2 The utility model provides a technical solution: an oilfield development sewage filtration device with slag discharge function, please refer to Figure 1-5 The utility model provides a technical solution: an oilfield development sewage filtering device with a slag discharge function, comprising a cart 1, a sewage treatment box 2 is arranged on the top surface of the cart 1, a water inlet pipe 3 is inlaid and connected to one side of the top of the sewage treatment box 2, a material guide component 4 is arranged in the middle of the inner cavity of the sewage treatment box 2, and an oil-water separation component 5 and a grid plate 7 are arranged on both sides of the material guide component 4, the oil-water separation component 5 is located directly below the water inlet pipe 3, and the top surface of the oil-water separation component 5 is flush with the top of the grid plate 7; sewage treatment A slag discharge hole 6 is provided in the inner cavity of the box 2 and located on one side wall of the grid plate 7, and the bottom end of the inner cavity of the slag discharge hole 6 is flush with the bottom end of the grid plate 7; a water sprayer 52 is embedded in the middle of the side wall of the sewage treatment box 2 and located on the opposite side of the material guide component 4, and the water sprayer 52 is parallel to the top surface of the oil-water separation component 5, and the water sprayer 52 is used to flush away the filter residue on the top surface of the oil-water separation component 5; a filter residue collecting component 8 is provided on one side wall of the sewage treatment box 2 and located at the position of the slag discharge hole 6, and the bottom end of the filter residue collecting component 8 is connected to the top surface of the cart 1.

[0033] When the staff needs to filter the sewage from oilfield development, they first push the cart 1 to move the sewage filtering device to the designated position. When the staff needs to filter the sewage from oilfield development, they first introduce the sewage to be filtered from the water inlet pipe 3 into the sewage treatment tank 2, and then use the oil-water separation component 5 to filter the impurities of the oilfield development sewage injected into the sewage treatment tank 2 and separate the oil and water of the filtered sewage, so that the grease and wastewater can be discharged separately, thereby reducing the pollution of the sewage to the land, and then the water is discharged through the sprinkler 5. 2. An external water supply pipeline can be connected, so that water can be sprayed on the top surface of the oil-water separation component 5, and then the filter residue on the top surface of the oil-water separation component 5 can be washed, so that the filter residue can be washed onto the grid plate 7, and then through the grid plate 7, the washed filter residue can be filtered again to clean the sludge on the filter residue, and the washed filter residue can be rolled into the filter residue collection component 8 through the residue discharge hole 6, and then the filter residue collection component 8 can collect the filter residue in a centralized manner, so that the staff can carry out subsequent treatment of the filter residue.

[0034] See also Figure 2 , Figure 3 , Figure 4 The material guide component 4 includes a partition plate 41, which is arranged in the middle of the inner cavity of the sewage treatment box 2. The partition plate 41 is used to separate the inner cavity of the sewage treatment box 2. A material guide hole 42 is opened in the middle position of the partition plate 41, and the bottom surface of the inner cavity of the material guide hole 42 is flush with the top surface of the oil-water separation component 5 and the top of the grille plate 7. The oil-water separation component 5 includes a water collecting bucket 53, which is arranged on one side of the inner cavity of the sewage treatment box 2, and the water collecting bucket 53 is located directly below the water inlet pipe 3. A filter screen 51 is arranged on the top surface of the water collecting bucket 53, and the filter screen 51 is flush with the top surface of the grille plate 7. The bottom end of the water collecting bucket 53 is connected to an oil-water separator 54, and the sewage discharge end of the oil-water separator 54 is connected to a wastewater discharge pipe 55, and the oil discharge end of the oil-water separator 54 is connected to a waste oil discharge pipe 56, and the waste water discharge pipe 55 and the waste oil discharge pipe 56 both pass through the side wall of the sewage treatment box 2.

[0035] The partition plate 41 in the material guide assembly 4 can be installed in the middle of the sewage treatment tank 2 and can provide a space for the material guide hole 42. Therefore, when the oilfield development sewage enters the sewage treatment tank 2 through the water inlet pipe 3, it first passes through the filter screen 51 to filter the impurities in the sewage, and the filtered residue will stay on the surface of the filter screen 51. Then the sewage after preliminary filtration flows to the water collecting bucket 53, so that it can be introduced into the oil-water separator 54, and then the oil-water separator 54 can separate the grease and water in the sewage again, and then the sewage is discharged through the wastewater discharge pipe. 55 and the waste oil discharge pipe 56 can discharge the waste water and grease separated by the oil-water separator 54 respectively, so that it is convenient for the staff to collect the waste water and grease separately, so as to reduce the pollution of land by sewage. When it is necessary to wash the filter residue on the filter screen 51, water can be sprayed on the top surface of the filter screen 51 through the water sprayer 52, so as to wash the filter residue on the top surface of the filter screen 51, so that the filter residue can be washed onto the grid plate 7, thereby ensuring the cleanliness of the surface of the filter screen 51 and increasing the service life of the filter screen 51.

[0036] See also Figure 2 , Figure 5 The filter residue collection component 8 includes a waste collection cabinet 81, which is arranged on the side wall of the sewage treatment tank 2. A feed hole 82 is opened in the middle and upper part of one side wall of the waste collection cabinet 81, and the feed hole 82 is communicated with the slag discharge hole 6. A cover 83 is provided on the top surface of the open end of the waste collection cabinet 81, and an observation window 84 is provided on the side wall surface of the waste collection cabinet 81. The observation window 84 is used to observe the situation in the waste collection cabinet 81. The filter residue collection component 8 also includes a handle, which is arranged in the middle position of the top surface of the cover 83, and the handle is used to pull up the cover 83.

[0037] The waste collection cabinet 81 in the filter residue collection assembly 8 can be installed on the side wall of the sewage treatment tank 2, and can be connected to the slag discharge hole 6 through the feed hole 82, so that the filter residue rolling down the grid plate 7 can be collected in a centralized manner, which can facilitate the subsequent treatment of the filter residue by the staff, and the cover 83 can prevent the waste residue falling into the waste collection cabinet 81 from splashing, and the observation window 84 can facilitate the staff to observe the situation in the waste collection cabinet 81, and the cover 83 can be pulled up by the handle to clean the waste residue in the waste collection cabinet 81.

[0038] See also Figure 2 , Figure 6, including a sewage pipe 92, which is embedded in the bottom position of the surface of the sewage treatment box 2, and the sewage pipe 92 is located on one side of the grid plate 7, and a sewage pump 91 is connected in series in the middle of the sewage pipe 92. The mud discharge assembly 9 also includes a valve, which is connected in series in the middle of the sewage pipe 92, and the valve is located outside the sewage pump 91. The valve is used to open or close the flow of the sewage pipe 92.

[0039] When the water sprinkler 52 drives the filter residue to roll down on the grid plate 7, the sludge on the filter residue will fall under the grid plate 7, so that the sludge can be accumulated on one side of the inner cavity of the sewage treatment tank 2. When this part of the sludge needs to be cleaned, the valve on the sewage pipe 92 and the sewage pipe 92 are opened, so that the sludge can be discharged from the inner cavity of the sewage treatment tank 2 through the sewage pipe 92, thereby preventing the sludge from accumulating in the sewage treatment tank 2.

[0040] During operation, when the staff needs to filter the sewage from oilfield development, they first push the cart 1 to move the sewage filtering device to the designated position. When the staff needs to filter the sewage from oilfield development, they first introduce the sewage to be filtered from the water inlet pipe 3 into the sewage treatment tank 2, and then use the oil-water separation component 5 to filter the impurities of the oilfield development sewage injected into the sewage treatment tank 2 and separate the oil and water of the filtered sewage, so that the grease and wastewater can be discharged separately, thereby reducing the pollution of the sewage to the land, and then spraying water to filter the impurities of the oilfield development sewage injected into the sewage treatment tank 2. The device 52 can be externally connected to a water supply pipe, so that water can be sprayed on the top surface of the oil-water separation component 5, and then the filter residue located on the top surface of the oil-water separation component 5 can be flushed, so that the filter residue can be flushed onto the grid plate 7, and then through the grid plate 7, the flushed filter residue can be filtered again to clean up the sludge on the filter residue, and the flushed filter residue can be rolled into the filter residue collecting component 8 through the residue discharge hole 6, and then the filter residue collecting component 8 can collect the filter residue in a centralized manner, so that the staff can carry out subsequent treatment of the filter residue.

[0041] The partition plate 41 in the material guide assembly 4 can be installed in the middle of the sewage treatment tank 2 and can provide a space for the material guide hole 42. Therefore, when the oilfield development sewage enters the sewage treatment tank 2 through the water inlet pipe 3, it first passes through the filter screen 51 to filter the impurities in the sewage, and the filtered residue will stay on the surface of the filter screen 51. Then the sewage after preliminary filtration flows to the water collecting bucket 53, so that it can be introduced into the oil-water separator 54, and then the oil-water separator 54 can separate the grease and water in the sewage again, and then the sewage is discharged through the wastewater discharge pipe. 55 and the waste oil discharge pipe 56 can discharge the waste water and grease separated by the oil-water separator 54 respectively, so that it is convenient for the staff to collect the waste water and grease separately, so as to reduce the pollution of land by sewage. When it is necessary to wash the filter residue on the filter screen 51, water can be sprayed on the top surface of the filter screen 51 through the water sprayer 52, so as to wash the filter residue on the top surface of the filter screen 51, so that the filter residue can be washed onto the grid plate 7, thereby ensuring the cleanliness of the surface of the filter screen 51 and increasing the service life of the filter screen 51.

[0042] The waste collection cabinet 81 in the filter residue collection assembly 8 can be installed on the side wall of the sewage treatment tank 2, and can be connected to the slag discharge hole 6 through the feed hole 82, so that the filter residue rolling down the grid plate 7 can be collected in a centralized manner, which can facilitate the subsequent treatment of the filter residue by the staff, and the cover 83 can prevent the waste residue falling into the waste collection cabinet 81 from splashing, and the observation window 84 can facilitate the staff to observe the situation in the waste collection cabinet 81, and the cover 83 can be pulled up by the handle to clean the waste residue in the waste collection cabinet 81.

[0043] When the water sprinkler 52 drives the filter residue to roll down on the grid plate 7, the sludge on the filter residue will fall under the grid plate 7, so that the sludge can be accumulated on one side of the inner cavity of the sewage treatment tank 2. When this part of the sludge needs to be cleaned, the valve on the sewage pipe 92 and the sewage pipe 92 are opened, so that the sludge can be discharged from the inner cavity of the sewage treatment tank 2 through the sewage pipe 92, thereby preventing the sludge from accumulating in the sewage treatment tank 2.

[0044] In summary, the device can not only filter the wastewater from oil field development, but also discharge the filtered residue in a centralized manner, so that the filtered residue can be treated separately, thereby preventing the filtered wastewater from being injected back into the underground and causing blockage of the oil outlet channel of the formation.

[0045] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. An oilfield development sewage filtering device with a slag discharge function, comprising a cart (1), a sewage treatment box (2) is arranged on the top surface of the cart (1), and a water inlet pipe (3) is embedded and connected to one side of the top of the sewage treatment box (2), characterized in that: A material guide component (4) is provided in the middle of the inner cavity of the sewage treatment box (2), and an oil-water separation component (5) and a grid plate (7) are provided on both sides of the material guide component (4), the oil-water separation component (5) is located directly below the water inlet pipe (3), and the top surface of the oil-water separation component (5) is flush with the top of the grid plate (7); A slag discharge hole (6) is provided in the inner cavity of the sewage treatment box (2) and on one side wall of the grid plate (7), and the bottom end of the inner cavity of the slag discharge hole (6) is flush with the bottom end of the grid plate (7); A water sprayer (52) is embedded in the middle of the side wall of the sewage treatment tank (2) and located opposite to the material guide component (4), and the water sprayer (52) is parallel to the top surface of the oil-water separation component (5). The water sprayer (52) is used to flush away the filter residue on the top surface of the oil-water separation component (5); A filter residue collection assembly (8) is provided on one side wall of the sewage treatment tank (2) at the position of the slag discharge hole (6), and the bottom end of the filter residue collection assembly (8) is connected to the top surface of the cart (1).

2. The oilfield development wastewater filtering device with slag discharge function according to claim 1 is characterized by: The material guide assembly (4) comprises a partition plate (41), the partition plate (41) being arranged in the middle of the inner cavity of the sewage treatment tank (2), and the partition plate (41) being used to separate the inner cavity of the sewage treatment tank (2); A material guide hole (42) is provided in the middle of the partition plate (41), and the bottom surface of the inner cavity of the material guide hole (42) is flush with the top surface of the oil-water separation component (5) and the top end of the grid plate (7).

3. The oilfield development wastewater filtering device with slag discharge function according to claim 2 is characterized by: The oil-water separation component (5) comprises a water collecting bucket (53), the water collecting bucket (53) is arranged on one side of the inner cavity of the sewage treatment tank (2), and the water collecting bucket (53) is located directly below the water inlet pipe (3), and a filter screen (51) is arranged on the top surface of the water collecting bucket (53), and the filter screen (51) is flush with the top surface of the grid plate (7); The bottom end of the water collecting bucket (53) is connected to an oil-water separator (54), the sewage discharge end of the oil-water separator (54) is connected to a wastewater discharge pipe (55), and the oil discharge end of the oil-water separator (54) is connected to a waste oil discharge pipe (56), and both the wastewater discharge pipe (55) and the waste oil discharge pipe (56) pass through the side wall of the sewage treatment tank (2).

4. The oilfield development wastewater filtering device with slag discharge function according to claim 1 is characterized by: The filter residue collection assembly (8) comprises a waste collection cabinet (81), the waste collection cabinet (81) being arranged on the side wall of the sewage treatment tank (2), a feed hole (82) being provided in the middle and upper part of one side wall of the waste collection cabinet (81), and the feed hole (82) being communicated with the slag discharge hole (6), and a sealing cover (83) being provided on the top surface of the open end of the waste collection cabinet (81); The side wall surface of the waste collection cabinet (81) is provided with an observation window (84), and the observation window (84) is used to observe the situation inside the waste collection cabinet (81).

5. The oilfield development wastewater filtering device with slag discharge function according to claim 4 is characterized by: The filter residue collecting assembly (8) further comprises a handle, which is arranged at a middle position of the top surface of the sealing cover (83), and is used to pull up the sealing cover (83).

6. The oilfield development wastewater filtering device with slag discharge function according to claim 1 is characterized by: It also comprises a mud discharge assembly (9), which is embedded in the bottom of the surface of the sewage treatment tank (2) and is located on one side of the grid plate (7). The mud discharge assembly (9) is used to discharge the mud filtered by the grid plate (7).

7. The oilfield development wastewater filtering device with slag discharge function according to claim 6 is characterized by: The mud discharge assembly (9) comprises a sewage discharge pipe (92), the sewage discharge pipe (92) is embedded in the bottom position of the surface of the sewage treatment tank (2), and the sewage discharge pipe (92) is located on one side of the grid plate (7), and a sewage pump (91) is connected in series in the middle of the sewage discharge pipe (92).

8. The oilfield development wastewater filtering device with slag discharge function according to claim 7 is characterized by: The mud discharge assembly (9) further comprises a valve, which is serially connected to the middle of the sewage discharge pipe (92) and is located outside the sewage pump (91). The valve is used to open or close the flow of the sewage discharge pipe (92).

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