Fracturing water fine treatment device and filter vat thereof

Abstract

The utility model discloses a fracturing water fine treatment device and a filter barrel thereof, the fracturing water fine treatment device comprises an outer barrel, an inner barrel is arranged in the outer barrel, the inner barrel is provided with a produced water blending device, at least two flocculation basins and at least one clean water basin are arranged between the outer barrel and the inner barrel, and each clean water basin is positioned between two adjacent flocculation basins; the inner barrel is provided with a liquid discharge pipe communicated with the flocculation basin; a first-type partition plate is arranged between every two adjacent flocculation tanks, a second-type partition plate is arranged between the clean water tank and the flocculation tanks, and the second-type partition plate is lower than the first-type partition plates. When the device is cleaned and maintained, the device can work, so that the production halt time caused by cleaning and maintenance is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter device technical field, concretely is a kind of water fine treatment device and filter barrel for fracturing. BACKGROUND

[0002] At present, the fracturing water of oil field is obtained by filtering and adjusting produced water, and the existing oil field produced water filtering device can only filter solid impurities in water body, and cannot act on fine suspended particles and colloid, so the problem of contaminated well fluid still exists to varying degrees.

[0003] Oil well fracturing acidification, fracturing viscosity reduction and other measures are important measures for oil layer reconstruction, and solid particles, impurities, suspended solids and other substances in oil field produced water not only affect the effect of chemical agents, but also pollute the reservoir to some extent. The medium in the conventional filter device for filtering produced water is relatively single, and cannot meet the demand of high-quality produced water for compounding chemical agents. In order to further ensure the cleanliness of well fluid, improve the construction quality and reduce the reservoir pollution, the technical personnel in the field provide many solutions for the defects of the prior art.

[0004] Announcement number: CN205990262U discloses a multifunctional release tank, by setting the water inlet pipe and the inner tank as the axis not intersecting state, when sewage enters the inner tank, it will be spiral, and then produce suspension, so that the sundries in sewage show echelon, that is, part of sinking, part of rising, and the middle is clear water, the sinking part can be discharged from the first sewage outlet, and then the purpose of sedimentation through the release tank is realized. At the same time, a deslagging box body is arranged above the inner tank, the deslagging gear in the deslagging box body drives the deslagging chain to move, and then drives the deslagging plate to collect the suspended dirt, so that the gas float function, sedimentation function and deslagging function are realized in one release tank.

[0005] Announcement number: CN220845706U discloses an acidification flowback fluid treatment device, which comprises a barrel body, a liquid inlet is arranged at the top of the barrel body, the inside of the barrel body is divided into a neutralization tank and a coagulation tank by a partition plate, a motor is installed at the central position of the top of the barrel body, the output shaft of the motor is arranged in the inside of the barrel body, and a rotating shaft is rotatably installed between the output shaft and the bottom of the barrel body, a through hole is formed in the partition plate for the rotating shaft to pass through, a plurality of groups of stirring blades are arranged on the rotating shaft, and the stirring blades are distributed in the neutralization tank and the coagulation tank, liquid adding pipes are arranged in the neutralization tank and the coagulation tank, the neutralization tank and the coagulation tank are connected by a connecting pipe, and a liquid discharge pipe is arranged in the coagulation tank. The device not only can neutralize the PH value of flowback fluid, but also can precipitate emulsified oil and suspended solids in flowback fluid, so that the acidification flowback fluid treatment is more complete, and the stirring blades on the rotating shaft driven by the motor can accelerate the reaction of flowback fluid and added liquid.

[0006] CN218530117U discloses a self-sedimentation sand collecting tank with water distribution screen pipe for unmanned platform, which comprises a body, a partition plate, an inlet pipe, a water distribution screen pipe and an outlet pipe. The body is longitudinally provided with the partition plate inside. The partition plate divides the body into a sedimentation tank and a clean water tank. The side wall of the sedimentation tank is provided with the inlet pipe near the top. The water distribution screen pipe is vertically installed at the port of the inlet pipe in the sedimentation tank. The side wall of the clean water tank on the same side of the inlet pipe is provided with the outlet pipe. The top of the partition plate away from the inlet pipe and the outlet pipe is also provided with a notch. The notch is blocked by a filter screen. The mud and sand mixture discharged from the desander can be separated again, so that the water source well water is fully utilized, and the mud and sand are settled at the bottom of the sand collecting tank.

[0007] However, the above prior art needs to stop the whole machine when cleaning the inner wall, cannot work continuously, and reduces production efficiency.

[0008] In summary, the technical solutions, the technical problems to be solved and the beneficial effects of the above disclosed technologies are different from those of the utility model. The above disclosed technology documents do not have technical inspiration for more technical features, technical problems to be solved and beneficial effects of the utility model. Utility model content

[0009] In view of the above defects of the prior art, the utility model aims to provide a fine treatment device for fracturing water and a filter barrel, so that the device can work continuously and the production efficiency is improved.

[0010] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0011] On the one hand, the utility model provides a fine treatment device for fracturing water, which comprises an outer barrel. An inner barrel is arranged inside the outer barrel. The inner barrel is provided with a produced water distribution device. At least two flocculation tanks and at least one clean water tank are arranged between the outer barrel and the inner barrel. Each clean water tank is located between two adjacent flocculation tanks. A drainage pipe is arranged in the inner barrel to communicate with the flocculation tanks. A type one partition plate is arranged between two adjacent flocculation tanks. A type two partition plate is arranged between the clean water tank and the flocculation tank. The height of the type two partition plate is lower than that of the type one partition plate.

[0012] Further, the inner barrel is connected with a water inlet pipe. A water sampling pipe is arranged in the clean water tank of the outer barrel.

[0013] Specifically, the type one partition plate comprises a first partition plate. The type two partition plate comprises a second partition plate and a third partition plate. The first partition plate and the second partition plate form a first flocculation tank. The first partition plate and the third partition plate form a second flocculation tank. The second partition plate and the third partition plate form a clean water tank.

[0014] Specifically, the inner barrel is provided with a first drainage pipe between the first partition plate and the second partition plate, and is communicated with the first flocculation tank; the inner barrel is provided with a second drainage pipe between the first partition plate and the third partition plate, and is communicated with the second flocculation tank; the water sampling pipe is communicated with the clear water tank between the second partition plate and the third partition plate.

[0015] Specifically, the first flocculation tank is provided with a first sewage pipe at the bottom, and the second flocculation tank is provided with a second sewage pipe at the bottom.

[0016] Further, the first sewage pipe, the second sewage pipe and the drainage pipe are all provided with electromagnetic valves.

[0017] Further, the bottom of the clear water tank is provided with a water sampling pump, the inlet end of the water sampling pump is connected with the bottom of the clear water tank through a pipeline, and the outlet end of the water sampling pump is connected with a water sampling pipe.

[0018] Further, the water sampling and distributing device comprises an end cover, the end cover is fixedly installed at the top of the inner barrel, and the end cover is provided with a driving motor;

[0019] Specifically, the output shaft of the driving motor penetrates through the end cover, the lower end of the output shaft is provided with a stirring blade, the end cover is provided with a water inlet, the water inlet is connected with a water inlet pipe, and the end cover is provided with a dosing port.

[0020] Further, the top of the inner barrel and the top of the outer barrel are detachably fixed with an annular cover.

[0021] Further, the inner barrel is arranged at the central position of the outer barrel, and the first flocculation tank and the second flocculation tank are of the same size.

[0022] Further, the bottom of the inner barrel is higher than the bottom of the outer barrel, and the lower ends of the first partition plate, the second partition plate and the third partition plate converge together.

[0023] In the second aspect, the utility model provides a filter barrel of fine treatment device for fracturing water, including outer drum, the inside of outer drum is provided with inner barrel, be provided with at least two flocculation tanks, at least one clear water tank between outer drum and inner barrel, and each clear water tank is located between two adjacent flocculation tanks, set up a type partition plate between two adjacent flocculation tanks, set up two type partition plate between clear water tank and flocculation tank, and the height of two type partition plate is lower than a type partition plate, and the inner barrel is provided with drainage pipe and is communicated with flocculation tank.

[0024] Further, the bottom of the inner barrel is higher than the bottom of the outer barrel, and the lower ends of the first partition plate, the second partition plate and the third partition plate converge together.

[0025] Specifically, the top of the inner barrel is fixedly installed with an end cover, the end cover is provided with a stirring mechanism, a water inlet and a dosing port.

[0026] Specifically, the annular cover is detachably fixed between the top of the inner barrel and the top of the outer barrel.

[0027] Specifically, the outer barrel is provided with a water outlet at the bottom of the clean water pool, and the outer barrel is provided with a sewage outlet at the bottom of the flocculation pool.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] 1、The utility model discloses a water body is added coagulant and flocculating agent to the inner barrel, and the driving motor drives the stirring vane rotation to stir, and the first flocculation pool and the second flocculation pool alternate work, and one is in the work of sinking clear, and the other is cleaned, and the sediment in the flocculation pool of the cleaning place is discharged through the sewage pipe.

[0030] 2、The utility model discloses a water body is added coagulant and flocculating agent to the inner barrel, and the driving motor drives the stirring vane rotation to stir, and the first flocculation pool and the second flocculation pool alternate work, and one is in the work of sinking clear, and the other is cleaned, and the sediment in the flocculation pool of the cleaning place is discharged through the sewage pipe.

[0031] In conclusion, the utility model can effectively remove most of the suspended particles and colloids in the water body, obtain relatively pure fracturing water, and has compact structure and continuous working, and is worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a structure schematic view of a kind of utility model discloses a fine treatment device for fracturing water;

[0033] Figure 2 It is the structure schematic view of the top view of the top of a kind of utility model discloses a fine treatment device for fracturing water removal annular cover;

[0034] Figure 3 It is the structure exploded schematic view of a kind of utility model discloses a fine treatment device for fracturing water;

[0035] Figure 4 It is the sectional structure schematic view of a kind of utility model discloses a fine treatment device for fracturing water;

[0036] In the drawing: 1, outer barrel;2, first flocculation pool;3, second flocculation pool;4, inner barrel;5, clean water pool;6, liquid discharge pipe;7, sewage pipe;8, water sampling pump;9, water sampling pipe;10, annular cover;11, end cover;12, water inlet pipe;13, dosing port;14, driving motor. DETAILED DESCRIPTION

[0037] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0038] Embodiment 1:

[0039] Please refer to Figures 1 to 3 The utility model provides a kind of water fine treatment device for fracturing and its filtering barrel, including outer bucket 1, water sampling pipe 9, inlet pipe 12, the central position of the inside of outer bucket 1 is provided with inner bucket 4, inlet pipe 12 is connected with inner bucket 4;First baffle, second baffle, third baffle are arranged between the inner bucket 4 and outer bucket 1, the height of second baffle and third baffle is lower than first baffle;First drain pipe is arranged between first baffle and second baffle in the inner bucket 4, second drain pipe is arranged between first baffle and third baffle in the inner bucket 4, and water sampling pipe is arranged between second baffle and third baffle.

[0040] First flocculation tank 2 is between the first baffle and the second baffle, second flocculation tank 3 is between the first baffle and the third baffle, and clean water tank 5 is between the second baffle and the third baffle;The size of first flocculation tank 2 and second flocculation tank 3 is same;First drain pipe is arranged in first flocculation tank 2, and second drain pipe is arranged in second flocculation tank 3;Electromagnetic valve is configured to first drain pipe, second drain pipe and drain pipe 6.

[0041] Water sampling pump 8 is installed at the bottom of clean water tank 5, the inlet end of water sampling pump 8 is connected with the bottom of clean water tank 5 through pipeline, and water sampling pipe 9 is connected with the outlet end of water sampling pump 8.

[0042] The top of inner bucket 4 is fixedly installed with end cover 11, drive motor 14 is arranged on end cover 11, the output shaft of drive motor 14 penetrates end cover 11, stirring blade 15 is arranged at the lower end of output shaft, inlet pipe 12 is connected to end cover 11, and dosing port 13 is arranged on end cover 11.

[0043] Annular cover 10 is detachably fixed between the top of inner bucket 4 and outer bucket 1, and annular cover 10 has shielding effect, which provides safety barrier to ensure man-machine safety, prevents liquid from splashing during liquid preparation, and avoids dust from falling into flocculation tank.

[0044] In the drawings, first drain pipe and second drain pipe are collectively referred to as drain pipe 7, and first drain pipe and second drain pipe are collectively referred to as drain pipe 6.

[0045] In operation, firstly, the tank truck or the water pump adds untreated produced water into the inner barrel 4 through the water inlet pipe 12, and adds flocculant into the inner barrel 4 through the dosing port 13; then, the driving motor 14 drives the stirring blade to rotate to stir the water body, so as to promote the mixing of the flocculant and the water body; after that, the liquid outlet pipe 6 leading to the first flocculation tank 2 or the second flocculation tank 3 is opened, the water body is flocculated and precipitated in the flocculation tank, and the clear water overflows through the top of the second partition plate or the third partition plate and flows into the clear water tank 5; the first flocculation tank 2 and the second flocculation tank 3 work alternately, one of which is in the process of clarifying, and the other is in the cleaning process, and the precipitate in the flocculation tank in the cleaning process is discharged through the blowdown pipe 7; the water pump 8 pumps the clear water in the clear water tank 5 into the fracturing water distribution pipeline, and finally into the oil well.

[0046] Embodiment 2:

[0047] Please refer to Figure 4 The difference between the embodiment and the embodiment 1 is that the bottom of the inner barrel 4 is higher than the bottom of the first flocculation tank 2, the second flocculation tank 3 and the clear water tank 5 and the bottom of the outer barrel 1.

[0048] The fourth partition plate is arranged between the bottom of the inner barrel and the bottom of the outer barrel, and the lower ends of the first partition plate, the second partition plate and the third partition plate converge on the fourth partition plate.

[0049] In the embodiment, the setting that the bottom of the inner barrel 4 is higher than the bottom of the first flocculation tank 2, the second flocculation tank 3 and the clear water tank 5 can improve the flow rate of the liquid in the inner barrel 4 to the outer barrel 1, and can also expand the volume of the flocculation tank and improve the precipitation efficiency.

[0050] In the application, the parts themselves and the connection modes of the parts in the application that are not discussed are all known technologies in the technical field. Direct application can be used, and no further description is given.

[0051] In the utility model, the term "a plurality of" refers to two or more than two, unless otherwise explicitly limited. The terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense. For example, "connection" can be fixed connection, or detachable connection, or integrally connected; "connection" can be direct connection, or indirect connection through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0052] In the description of the utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0053] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water fine treatment device for fracturing, comprising an outer tub, an inner tub is arranged inside the outer tub, the inner tub is provided with produced water distribution device, characterized in that, At least two flocculation tanks and at least one clean water tank are arranged between the outer drum and the inner drum, and each clean water tank is located between two adjacent flocculation tanks; The inner drum is provided with a liquid discharge pipe connected to the flocculation tanks; A first type of partition is arranged between two adjacent flocculation tanks, and a second type of partition is arranged between the clean water tank and the flocculation tank, and the height of the second type of partition is lower than that of the first type of partition.

2. The water fine treatment apparatus for fracturing according to claim 1, wherein The inner drum is connected to the water inlet pipe, and the outer drum is provided with a water sampling pipe at the clean water tank; The first type of partition includes a first partition, and the second type of partition includes a second partition and a third partition; the first partition and the second partition form a first flocculation tank, the first partition and the third partition form a second flocculation tank, and the second partition and the third partition form a clean water tank; The inner drum is provided with a first liquid discharge pipe between the first partition and the second partition, which is connected to the first flocculation tank; the inner drum is provided with a second liquid discharge pipe between the first partition and the third partition, which is connected to the second flocculation tank; and the water sampling pipe is connected to the clean water tank between the second partition and the third partition; The first flocculation tank is provided with a first sewage discharge pipe at the bottom, and the second flocculation tank is provided with a second sewage discharge pipe at the bottom.

3. The water fine treatment apparatus for fracturing according to claim 2, wherein The first sewage discharge pipe, the second sewage discharge pipe, and the liquid discharge pipe are all provided with electromagnetic valves.

4. The water fine treatment apparatus for fracturing according to claim 2, wherein A water sampling pump is installed at the bottom of the clean water tank, the inlet of the water sampling pump is connected to the bottom of the clean water tank through a pipeline, and the outlet of the water sampling pump is connected to the water sampling pipe.

5. The water fine treatment apparatus for fracturing according to claim 2, wherein The water sampling and distribution device includes an end cover, which is fixedly installed on the top of the inner drum, and a driving motor is arranged on the end cover; The output shaft of the driving motor penetrates through the end cover, and a stirring blade is arranged at the lower end of the output shaft; a water inlet is arranged on the end cover, and a water inlet pipe is connected to the water inlet; and a dosing port is arranged on the end cover.

6. The water fine treatment apparatus for fracturing according to claim 2, wherein An annular cover is detachably fixed between the top of the inner drum and the top of the outer drum.

7. The apparatus for fine treatment of fracturing water according to any one of claims 2-6, characterized in that, The inner drum is arranged at the center of the outer drum, and the first flocculation tank and the second flocculation tank are of the same size.

8. The apparatus for fine treatment of fracturing water according to any one of claims 2-6, characterized in that, The bottom of the inner drum is higher than the bottom of the outer drum, and the lower ends of the first partition, the second partition, and the third partition converge together.

9. A filter barrel of a water fine treatment apparatus for fracturing, comprising an outer barrel, an inner barrel being provided inside the outer barrel, characterized in that, At least two flocculation tanks and at least one clean water tank are arranged between the outer drum and the inner drum, and each clean water tank is located between two adjacent flocculation tanks; The inner drum is provided with a liquid discharge pipe connected to the flocculation tanks; A first type of partition is arranged between two adjacent flocculation tanks, and a second type of partition is arranged between the clean water tank and the flocculation tank, and the height of the second type of partition is lower than that of the first type of partition.

10. The filtering barrel of a water fine treatment apparatus for fracturing according to claim 9, wherein The bottom of the inner drum is higher than the bottom of the outer drum, and the first type of partition and the second type of partition converge together at the lower part of the inner drum; The outer drum is provided with a water outlet at the bottom of the clean water tank, and the outer drum is provided with a sewage outlet at the bottom of the flocculation tank.

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