Oilfield water injection water treatment filtering device

Abstract

The utility model discloses a water treatment filter device for oilfield flooding, which relates to the technical field of oilfield flooding treatment and comprises a filter tank I. A baffle, a filter screen and an oil-water separation membrane are sequentially arranged on the inner side of the filter tank I from left to right, and a sludge tank is mounted on the left side of the front end of the filter tank I; an oil storage tank is mounted at the right end of the sludge tank, and a filter tank II is mounted at the right end of the oil storage tank. According to the oilfield injection water treatment filtering device, by arranging the sewage collecting hopper and the sludge pump, sludge in reinjection water can be precipitated and gathered into the sludge tank of the sewage collecting hopper, the sludge accumulated in the sludge tank can be pumped into the sludge box through the sludge pump, meanwhile, by arranging the filter screen, impurities in the reinjection water can be filtered out, and the water treatment effect is improved. Filtering and treatment of silt and impurities in reinjection water are achieved, and the filtering effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oilfield water injection treatment, in particular to an oilfield water injection water treatment and filtering device. Background Art

[0002] The process of injecting water of the required quality from the injection well into the oil layer to maintain the oil layer pressure is called oilfield water injection. Oilfield water injection is one of the important means to replenish energy to the formation and improve the oil field recovery rate during the development of the oil field. Due to the different sources, components and concentrations of oilfield water injection, the treatment methods are also different. When most of the filtration devices are used to treat oilfield water injection, a large part of the oilfield water injection comes from the circulating water after oil-water separation, which contains a lot of oil pollution, so the oilfield water injection needs to be deoiled. In this process, an oil-water separation box will be used to achieve the purpose of oil filtering.

[0003] For example, patent No. CN219950591U discloses an oilfield injection water treatment and filtering device, whose structure includes an oil-water separation box, a water retaining baffle is fixed between the inner walls of the oil-water separation box, an oil retaining baffle is fixed between the inner walls of the oil-water separation box on one side of the water retaining baffle, and an oil suction mechanism is arranged above the oil-water separation box, the oil suction mechanism includes a first oil suction box, a second oil suction box, a connecting pipe, a suction pump and an oil suction nozzle, the first oil suction box and the second oil suction box are arranged above the oil-water separation box, and the second oil suction box is arranged on one side of the first oil suction box; the utility model uses the oil suction mechanism to absorb the oil layer through the oil suction nozzle that contacts the oil layer, and the suction pump can quickly remove the oil layer by sucking oil, thereby improving the situation of slow discharge speed and thick oil layer affecting fluidity in the traditional natural oil discharge method with an oil discharge port.

[0004] The oilfield water injection water treatment and filtration device in this patent, when in use, lacks the filtration and treatment of silt and impurities in the reinjection water, resulting in reduced purity of the reinjection water. At the same time, after long-term use, there is a possibility of filter blockage, which requires manual cleaning, reducing work efficiency. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an oilfield injection water treatment and filtering device, which solves the problem that the device lacks filtration and treatment of silt and impurities in the reinjection water during use, resulting in reduced purity of the reinjection water. At the same time, after long-term use, there is a possibility of filter clogging, which requires manual cleaning and reduces work efficiency.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: an oilfield injection water treatment filter device, comprising a filter box, the inner side of the filter box is sequentially provided with a baffle, a filter screen, and an oil-water separation membrane from left to right, a sludge box is installed on the left side of the front end of the filter box, an oil storage tank is installed on the right end of the sludge box, and a filter box is installed on the right end of the oil storage tank. A water inlet pipe is fixedly installed on the left end of the filter box, and a water outlet pipe is fixedly installed on the right end of the filter box. A support plate is fixedly installed on the left side of the upper end of the filter box, a sludge pump is fixedly installed on the upper end of the support plate, and a sewage suction pipe is fixedly connected to the lower end of the sludge pump. The lower end of the inner side of the filter box is located on the left side of the baffle. A sewage collecting hopper is provided, and a sewage pipe is fixedly connected to the front end of the sludge pump, and a track shell is installed on the front and rear sides of the right side of the filter screen, and a connecting block 1 is provided between the two track shells, and a water spray box is fixedly installed on the left end of the connecting block 1. The upper end of the filter box 1 is located between the filter screen and the oil-water separation membrane and a support plate 2 is fixedly installed thereon, and a water pump is fixedly installed on the upper end of the support plate 2, and a water pump is fixedly connected to the right end of the water pump with a water suction pipe, and an oil suction pump is fixedly installed on the upper end of the support plate 2 in front of the water pump, and the lower end of the oil suction pump is fixedly connected to an oil suction pipe, and the lower end of the oil suction pipe is fixedly connected to an oil suction box, and the front end of the oil suction pump is fixedly connected to an oil outlet pipe, and a water filter membrane is provided on the inner side of the filter box 2.

[0007] Preferably, the two track housings are symmetrically distributed, a motor is fixedly mounted on the upper end of the track housing, a threaded rod is fixedly connected to the output end of the motor, a slider is threadedly connected to the surface of the threaded rod, and by setting a track assembly, the water spray box can move up and down to cover the filter surface, thereby improving the cleaning efficiency.

[0008] Preferably, one end of the threaded rod away from the motor is rotatably connected to the lower end of the inner side of the track housing, the slider is designed in a T-shaped structure, one end of the slider extends to the outside of the track housing, and is fixedly connected to the left and right ends of the connecting block respectively, the slider and the track housing are slidably connected, the water spray box is connected to the water pump through a hose, and by arranging a backwash component, the flushing of the filter is achieved, the clogging of the filter is avoided, and the filtering effect is improved.

[0009] Preferably, the support plate 2 and the oil suction box are fixedly connected by a connecting block 2, and the surface of the lower end of the oil suction box is fixedly connected with an oil suction port, and the oil suction ports are distributed at equal intervals. By setting up the oil suction mechanism, the oil layer can be quickly removed and the work efficiency is improved.

[0010] Preferably, an oil outlet is fixedly installed on the left end of the filter box two, and a connecting pipe is fixedly installed on the right end of the filter box two. The end of the connecting pipe away from the filter box two is fixedly connected to the filter box one. By setting up the filter box two, secondary filtration of the oil is achieved, thereby improving the purity of the oil.

[0011] Preferably, the water filter membrane is designed to be inclined, and the oil outlet and connecting pipe are respectively located on the upper and lower sides of the water filter membrane. By designing the filter screen 2 to be inclined, the separated oil can flow to the oil outlet by itself, realizing automatic storage of oil and improving work efficiency.

[0012] Beneficial Effects

[0013] The utility model provides a self-locking bowl head hanging plate. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The oilfield injection water treatment and filtering device, by setting a sludge collecting hopper and a sludge pump, allows the sludge in the reinjection water to settle and gather in the sludge tank of the sludge collecting hopper, and the sludge accumulated in the sludge tank can be pumped into the sludge box by the sludge pump. At the same time, by setting a filter screen, impurities in the reinjection water can be filtered out, thereby achieving the filtration and treatment of silt and impurities in the reinjection water and improving the filtering effect.

[0015] 2. The oilfield water treatment and filtration device can separate the water from the oil in the reinjected water by setting an oil-water separation membrane. At the same time, the oil can be sucked into the second filter box for secondary purification through the oil suction pump, which solves the problem of insufficient water-oil separation and improves the filtration effect.

[0016] 3. The oilfield water injection water treatment and filtration device uses a water pump to extract the reinjection water filtered on the right side of the oil-water separation membrane into a water spray box, and a motor is set to drive the rotation of the threaded rod so that the slider can move up and down, so that the water spray box can flush the filter from top to bottom, flush the attachments on the filter, solve the problem of filter blockage, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the box structure in the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the flushing component in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the oil absorption component in the utility model;

[0021] Figure 5This is a structural plan view of the second filter box in the utility model.

[0022] In the figure: 11, filter box one; 12, sludge box; 13, oil storage tank; 14, filter box two; 141, oil outlet; 142, connecting pipe; 143, water filter membrane; 21, water inlet pipe; 22, water outlet pipe; 31, support plate one; 32, sludge pump; 33, sewage suction pipe; 34, sewage collecting hopper; 35, sewage discharge pipe; 41, baffle; 42, filter screen; 43, oil-water separation membrane; 51, track housing; 52, motor; 53, threaded rod; 54, slider; 55, connecting block one; 56, water spray box; 57, water pump; 58, hose; 59, water pump; 61, support plate two; 62, oil suction pump; 63, oil suction pipe; 64, oil suction box; 641, oil suction port; 65, oil outlet pipe; 67, connecting block two. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-3 The utility model provides a technical solution: an oilfield injection water treatment and filtering device, comprising a filter box 11, the inner side of the filter box 11 is provided with a baffle 41, a filter screen 42, and an oil-water separation membrane 43 from left to right, a sludge box 12 is installed on the left side of the front end of the filter box 11, an oil storage tank 13 is installed on the right end of the sludge box 12, a filter box 2 14 is installed on the right end of the oil storage tank 13, a water inlet pipe 21 is fixedly installed on the left end of the filter box 11, a water outlet pipe 22 is fixedly installed on the right end of the filter box 11, and the filter box 11 is provided with a filter box 21. A support plate 31 is fixedly installed on the left side of the upper end of the filter box 11, a sludge pump 32 is fixedly installed on the upper end of the support plate 31, a sewage suction pipe 33 is fixedly connected to the lower end of the sludge pump 32, a sewage collecting hopper 34 is arranged on the left side of the baffle 41 at the lower end of the inner side of the filter box 11, and a sewage discharge pipe 35 is fixedly connected to the front end of the sludge pump 32. By setting the sewage collecting hopper 34, the sludge can be concentrated and precipitated in the sewage collecting hopper 34, and then the sludge in the sewage collecting hopper 34 is pumped out by the sludge pump 32, so as to realize the cleaning of the sludge and improve the cleaning efficiency;

[0025] A track housing 51 is installed on the front and rear sides of the right side of the filter screen 42. The two track housings 51 are symmetrically distributed. A motor 52 is fixedly installed on the upper end of the track housing 51. A threaded rod 53 is fixedly connected to the output end of the motor 52. A slider 54 is threadedly connected to the surface of the threaded rod 53. The end of the threaded rod 53 away from the motor 52 is rotatably connected to the lower end of the inner side of the track housing 51. The slider 54 is designed in a T-shaped structure. One end of the slider 54 extends to the outside of the track housing 51 and is fixedly connected to the left and right ends of the connecting block 55 respectively. The slider 54 and the track housing 51 are slidably connected. A water spray box 56 is connected to a water pump 57 through a hose 58. A connecting block 55 is provided between the two track housings 51. A water spray box 56 is fixedly installed on the left end of the connecting block 55. By arranging a track component, the water spray box 56 can move up and down to cover the surface of the filter screen 42, thereby improving the cleaning efficiency. By arranging a backwash component, the filter screen 42 is flushed, the filter screen 42 is avoided from being blocked, and the filtering effect is improved.

[0026] The upper end of the filter box 11 is located between the filter screen 42 and the oil-water separation membrane 43 and is fixedly installed with a support plate 61. A water pump 57 is fixedly installed on the upper end of the support plate 61. A water pump 59 is fixedly connected to the right end of the water pump 57. An oil suction pump 62 is fixedly installed on the upper end of the support plate 61 in front of the water pump 57. An oil suction pipe 63 is fixedly connected to the lower end of the oil suction pump 62. An oil suction box 64 is fixedly connected to the lower end of the oil suction pipe 63. The support plate 61 and the oil suction box 64 are fixedly connected by a connecting block 67. An oil suction port 641 is fixedly connected to the surface of the lower end of the oil suction box 64. The oil suction ports 641 are distributed at equal intervals. An oil outlet pipe 65 is fixedly connected to the front end of the oil suction pump 62. By setting the oil suction mechanism, the oil layer can be quickly removed and the work efficiency is improved.

[0027] A water filter membrane 143 is provided on the inner side of the filter box 14, an oil outlet 141 is fixedly installed on the left end of the filter box 14, a connecting pipe 142 is fixedly installed on the right end of the filter box 14, and the end of the connecting pipe 142 away from the filter box 14 is fixedly connected to the filter box 11, and the water filter membrane 143 is designed to be inclined, and the oil outlet 141 and the connecting pipe 142 are respectively located on the upper and lower sides of the water filter membrane 143. By setting the filter box 14, secondary filtration of petroleum is achieved, and the purity of petroleum is improved. By designing the water filter membrane 143 to be inclined, the separated petroleum can flow to the oil outlet 141 by itself, thereby realizing automatic storage of petroleum and improving work efficiency.

[0028] During operation, the reinjection water flows into the silt sedimentation area on the left side of the baffle 41 in the filter box 11 through the water inlet pipe 21. Due to the baffle 41, the reinjection water cannot directly flow into the impurity filtering area on the right side of the baffle 41. Therefore, the silt in the reinjection water settles during this time. The sludge collecting hopper 34 is provided, so that the silt will settle and gather in the sludge tank in the sludge collecting hopper 34, so that the sludge pump 32 can extract the silt accumulated in the sludge tank into the sludge box 12. After that, the reinjection water flows into the impurity filtering area between the baffle 41 and the filter screen 42. By providing the filter screen 42, the impurities in the reinjection water are filtered out, so that the silt and impurities in the reinjection water are filtered and processed, and the filtering effect is improved. After that, the reinjection water flows into the oil separation area between the filter screen 42 and the oil-water separation membrane 43. The density is less than that of water, so the oil floats, so that the oil suction pump 62 can extract the floating oil into the filter box 14, thereby realizing secondary filtration of the oil and improving the purity of the oil. At the same time, a water filter membrane 143 is provided in the filter box 14, and is tilted so that the separated oil can flow to the oil outlet 141 by itself and enter the oil storage tank 13, while the separated water enters the water storage area on the right side of the oil-water separation membrane 43 through the connecting pipe 142, thereby realizing automatic storage of oil and improving work efficiency. When the device stops working, the motor 52 drives the threaded rod 53 to rotate, so that the slider 54 can move up and down, thereby driving the water spray box 56 to move up and down to cover the surface of the filter screen 42, thereby flushing the attachments on the filter screen 42, solving the problem of filter screen 42 blockage and improving the filtration efficiency.

[0029] 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 water injection water treatment and filtering device, comprising a filter box (11), characterized in that: The inner side of the filter box (11) is provided with a baffle (41), a filter screen (42), and an oil-water separation membrane (43) in sequence from left to right. A sludge box (12) is installed on the left side of the front end of the filter box (11). An oil storage tank (13) is installed on the right end of the sludge box (12). A filter box (14) is installed on the right end of the oil storage tank (13). A water inlet pipe (21) is fixedly installed on the left end of the filter box (11). A water outlet pipe (22) is fixedly installed at the end of the filter box (11); a support plate (31) is fixedly installed on the left side of the upper end of the filter box (11); a sludge pump (32) is fixedly installed on the upper end of the support plate (31); a sewage suction pipe (33) is fixedly connected to the lower end of the sludge pump (32); a sewage collecting hopper (34) is provided at the lower end of the inner side of the filter box (11) and located on the left side of the baffle (41); a sewage discharge pipe (35) is fixedly connected to the front end of the sludge pump (32); A track housing (51) is installed on both the front and rear sides of the right side of the filter screen (42), a connection block (55) is provided between the two track housings (51), a water spray box (56) is fixedly installed on the left end of the connection block (55), a support plate (61) is fixedly installed on the upper end of the filter box (11) between the filter screen (42) and the oil-water separation membrane (43), a water pump (57) is fixedly installed on the upper end of the support plate (61), and the water pump (57) is fixedly installed on the upper end of the support plate (61). The right end of the support plate 57 is fixedly connected to a water suction pipe (59), the upper end of the support plate 2 (61) is located in front of the water suction pump (57) and is fixedly installed with an oil suction pump (62), the lower end of the oil suction pump (62) is fixedly connected to an oil suction pipe (63), the lower end of the oil suction pipe (63) is fixedly connected to an oil suction box (64), the front end of the oil suction pump (62) is fixedly connected to an oil outlet pipe (65), and a water filter membrane (143) is arranged on the inner side of the filter box 2 (14).

2. The oilfield water injection water treatment and filtering device according to claim 1, characterized in that: The two track housings (51) are symmetrically distributed, a motor (52) is fixedly mounted on the upper end of the track housing (51), a threaded rod (53) is fixedly connected to the output end of the motor (52), and a slider (54) is threadedly connected to the surface of the threaded rod (53).

3. The oilfield water injection water treatment and filtering device according to claim 2, characterized in that: One end of the threaded rod (53) away from the motor (52) is rotatably connected to the lower end of the inner side of the track housing (51); the slider (54) is designed in a T-shaped structure; one end of the slider (54) extends to the outer side of the track housing (51) and is fixedly connected to the left and right ends of the connecting block (55) respectively; the slider (54) and the track housing (51) are slidably connected; and the water spray box (56) is connected to the water pump (57) through a hose (58).

4. The oilfield water injection water treatment and filtering device according to claim 1, characterized in that: The second support plate (61) and the oil suction box (64) are fixedly connected via a second connecting block (67); the surface of the lower end of the oil suction box (64) is provided with oil suction ports (641), and the oil suction ports (641) are distributed at equal intervals.

5. The oilfield water injection water treatment and filtering device according to claim 1, characterized in that: An oil outlet (141) is fixedly installed at the left end of the second filter box (14), and a connecting pipe (142) is fixedly installed at the right end of the second filter box (14). The end of the connecting pipe (142) away from the second filter box (14) is fixedly connected to the first filter box (11).

6. The oilfield water injection water treatment and filtering device according to claim 5, characterized in that: The water filter membrane (143) is designed to be inclined, and the oil outlet (141) and the connecting pipe (142) are respectively located on the upper and lower sides of the water filter membrane (143).

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