Premixing device for preparing fracturing fluid

Abstract

The utility model discloses a premixing device for preparing fracturing fluid, which belongs to the technical field of premixing devices, and is characterized by comprising a tank body, a mixing mechanism is arranged in the tank body, a reinforcing component is arranged on one side of the mixing mechanism, a stir-frying component is arranged at the bottom of one side of the mixing mechanism, and the stirring component is arranged at the bottom of the other side of the mixing mechanism. A filtering assembly is arranged on one side of the mixing mechanism, a discharging assembly is arranged at the bottom of the mixing mechanism, and a containing assembly is arranged at the bottom of the tank body. By arranging the mixing mechanism, the mixing and dissolving speed of fracturing fluid can be increased through the mixing mechanism in the using process, the mixing efficiency is improved, the structure is simple, and use is convenient; the problem that in the prior art, the mixing efficiency is low is effectively solved, by arranging the filtering assembly, the filtering assembly can conduct smashing treatment on the raw materials before mixing and dissolving in the using process, and subsequent mixing treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of premixing devices, in particular to a premixing device for preparing fracturing fluid. Background Art

[0002] Fracturing and acidizing in oil production is referred to as acid fracturing. It is a process of fracturing without proppant using acid as fracturing fluid at a pressure higher than the fracture pressure of the formation. During the acid fracturing process, the wall of the fracture is dissolved into an uneven surface by the dissolution effect of the acid so that the wall of the fracture will not be completely closed after the pump is stopped and the pressure is unloaded. Therefore, it has a higher conductivity and is effective in restoring and improving the production capacity of the oil well. This method is suitable for carbonate reservoirs. The acid treatment process of squeezing acid from the formation under a pressure sufficient to press the formation to form fractures or open the original fractures of the formation is called fracturing and acidizing. It can be divided into pre-fluid acid fracturing and ordinary acid fracturing. Fracturing and acidizing is mainly used for oil and gas wells with a deeper plugging range or low permeability areas. Fracturing and acidizing with an acid injection pressure higher than the fracture pressure of the oil formation. Acidizing hydraulic pressure is a measure for increasing production and injection widely used in limestone reservoirs in oil fields at home and abroad.

[0003] At present, the fracturing acidizing on the market is suitable for oil extraction. It is used to form cracks in the formation to improve the conductivity. It has now begun to become an important means of well completion. However, for the fracturing fluid used for fracturing acidizing, the fracturing fluid generally adopts water-based fracturing fluid or oil-water emulsion fracturing fluid, etc., which is formed by mixing with a variety of additives. During mixing, the different amounts of additives added may lead to the failure of fracturing fluid mixing; and when the fracturing fluid is mixed, the fracturing fluid may cause lumps due to the precipitation of the fracturing fluid, which affects the transportation and use efficiency of the fracturing fluid.

[0004] The Chinese utility model patent with the current announcement number CN210115041U discloses a mixing device for fracturing fluid for oil production, which forms fracturing fluid by mixing additives and water, and the rotation of the rotating plate is conducive to controlling the ratio of additives to water, thereby improving the convenience of operation and facilitating the preparation of fracturing fluid; the mixing device for fracturing fluid for oil production is conducive to the formation of fracturing fluid by the rotation of the stirring rod, is conducive to the full mixing of the fracturing fluid by secondary stirring of the fracturing fluid, and is conducive to the transportation of the fracturing fluid by the movement of the sealing plug, thereby reducing the difficulty of operation and facilitating the improvement of work efficiency.

[0005] In view of the above problems, existing patents have provided solutions, but in actual use, the efficiency of mixing and dissolving is low, and the raw materials are not crushed and pre-treated, which reduces the mixing efficiency and makes it impossible to discharge the materials evenly.

[0006] To this end, a premixing device for preparing fracturing fluid is proposed. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] The utility model provides a premixing device for preparing fracturing fluid, aiming to solve the problems that the existing premixing device for preparing fracturing fluid has low mixing and dissolving efficiency during actual use, and the raw materials are not crushed and pretreated, which reduces the mixing efficiency and cannot be discharged uniformly.

[0009] 2. Technical solution

[0010] The utility model is implemented as follows: a premixing device for preparing a fracturing fluid comprises a tank body, a mixing mechanism is arranged inside the tank body, a reinforcing component is arranged on one side of the mixing mechanism, a stir-frying component is arranged on the bottom of one side of the mixing mechanism, a filtering component is arranged on one side of the mixing mechanism, a discharging component is arranged on the bottom of the mixing mechanism, and a storage component is arranged on the bottom of the tank body;

[0011] The mixing mechanism includes an inlet, a discharge valve, a first motor, a rotating rod and a stirring rod. The inlet is arranged at the top of the tank body, the discharge valve is arranged at the bottom of the tank body, the first motor is bolted to the top of the tank body, the rotating rod is fixedly connected to the output end of the first motor, and a plurality of stirring rods are fixedly connected to one side of the rotating rod.

[0012] In order to achieve the effect of stirring the raw materials inside the tank body and increasing the efficiency of mixing and dissolving, as a preferred premixing device for preparing fracturing fluid of the utility model, the reinforcing assembly includes a rotating ring and a reinforcing plate, the rotating ring is rotatably connected to one side of the stirring rod, and a plurality of the reinforcing plates are fixedly connected to one side of the rotating ring.

[0013] In order to mix and stir-fry the raw materials inside the tank again and further improve the dissolution efficiency, a premixing device for preparing fracturing fluid is preferably used in the utility model. The stir-frying component includes an extension rod and a spiral blade, the extension rod is fixedly connected to the bottom of the rotating rod, and the spiral blade is fixedly connected to one side of the extension rod.

[0014] In order to achieve the effect of allowing the crushed raw materials to enter the interior of the tank through the filter plate for mixing and stirring, thereby improving the mixing efficiency, a preferred premixing device for preparing fracturing fluid in the utility model is that the filtering assembly includes a second motor, a round rod, a breaking rod and a filter plate, the second motor is bolted to one side of the feed port, the round rod is fixedly connected to the output end of the second motor, a plurality of the breaking rods are fixedly connected to one side of the round rod, and the filter plate is arranged inside the feed port.

[0015] In order to achieve the effect of uniformly discharging the raw materials inside the discharge barrel, as a preferred premixing device for preparing fracturing fluid in the utility model, the discharge assembly includes a discharge barrel, a third motor, a discharge rod and a rotating blade, the discharge barrel is arranged at the bottom of the discharge valve, the third motor is bolted to one side of the discharge barrel, the discharge rod is fixedly connected to the output end of the third motor, and the rotating blade is fixedly connected to one side of the discharge rod.

[0016] In order to achieve the effect of collecting the discharged raw materials, as a preferred premixing device for preparing fracturing fluid of the utility model, the storage assembly includes a support rod and a storage groove, the support rod is fixedly connected to the bottom of the tank body, and the storage groove is fixedly connected to the bottom of the support rod.

[0017] In order to heat the tank body and thus control the temperature inside the tank body, a temperature plate for controlling the temperature inside the tank body is preferably provided on one side of the tank body as a premixing device for preparing fracturing fluid of the utility model.

[0018] In order to achieve the effect of more convenient feeding through the feed port, as a preferred premixing device for preparing fracturing fluid of the utility model, the top of the feed port is fixedly connected with a feed hopper, and the material of the feed hopper is stainless steel.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model is provided with a mixing mechanism, which can increase the speed of mixing and dissolving the fracturing fluid during use, improve the mixing efficiency, has a simple structure and is easy to use, thereby effectively solving the problem of low mixing efficiency in the prior art.

[0022] 2. The utility model is provided with a filtering component, which can crush the raw materials before mixing and dissolving during use, so as to facilitate the subsequent mixing process, thereby effectively solving the problem of no pretreatment in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall structure diagram of the utility model;

[0024] Figure 2 It is a right side view of the utility model;

[0025] Figure 3 For this utility model Figure 2 A three-dimensional schematic diagram of the cross section at AA in the middle;

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

[0027] Figure 5 It is a schematic diagram of the discharging assembly of the utility model.

[0028] Description of the numbers in the figure:

[0029] 1. Tank body; 2. Mixing mechanism; 3. Reinforcement component; 4. Stir-frying component; 5. Filter component; 6. Discharge component; 7. Storage component; 201. Feed inlet; 202. Discharge valve; 203. First motor; 204. Rotating rod; 205. Stirring rod; 301. Rotating ring; 302. Reinforcement plate; 401. Extension rod; 402. Spiral blade; 501. Second motor; 502. Round rod; 503. Breaking rod; 504. Filter plate; 601. Discharge barrel; 602. Third motor; 603. Discharge rod; 604. Rotating blade; 701. Support rod; 702. Storage tank; 8. Temperature plate; 9. Feed hopper. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] See also Figure 1-5 The utility model provides a technical solution: a premixing device for preparing a fracturing fluid, comprising a tank body 1, a mixing mechanism 2 is arranged inside the tank body 1, a reinforcing component 3 is arranged on one side of the mixing mechanism 2, a stir-frying component 4 is arranged on the bottom of one side of the mixing mechanism 2, a filtering component 5 is arranged on one side of the mixing mechanism 2, a discharging component 6 is arranged on the bottom of the mixing mechanism 2, and a storage component 7 is arranged on the bottom of the tank body 1;

[0032] The mixing mechanism 2 includes an inlet 201, a discharge valve 202, a first motor 203, a rotating rod 204 and a stirring rod 205. The inlet 201 is arranged at the top of the tank body 1, the discharge valve 202 is arranged at the bottom of the tank body 1, the first motor 203 is bolted to the top of the tank body 1, the rotating rod 204 is fixedly connected to the output end of the first motor 203, and multiple stirring rods 205 are fixedly connected to one side of the rotating rod 204.

[0033] In this embodiment: by setting the feed port 201, the discharge valve 202, the first motor 203, the rotating rod 204 and the stirring rod 205, when in use, the corresponding raw materials are added to the inside of the tank body 1 through the feed port 201, and then the first motor 203 is started to drive the rotating rod 204 to rotate, and drive the stirring rod 205 to mix and stir the raw materials inside the tank body 1 to dissolve the raw materials.

[0034] As a technical optimization solution of the present invention, the reinforcing assembly 3 includes a rotating ring 301 and a reinforcing plate 302 . The rotating ring 301 is rotatably connected to one side of the stirring rod 205 , and a plurality of reinforcing plates 302 are fixedly connected to one side of the rotating ring 301 .

[0035] In this embodiment: by providing a rotating ring 301 and a reinforcing plate 302, when the stirring rod 205 is stirring during use, it will drive the rotating ring 301 to rotate, and the rotation of the rotating ring 301 will drive the reinforcing plate 302 to stir the raw materials inside the tank body 1, thereby improving the efficiency of mixing and dissolving.

[0036] As a technical optimization solution of the present invention, the stir-fry component 4 includes an extension rod 401 and a spiral leaf 402 . The extension rod 401 is fixedly connected to the bottom of the rotating rod 204 , and the spiral leaf 402 is fixedly connected to one side of the extension rod 401 .

[0037] In this embodiment: by providing an extension rod 401 and a spiral blade 402, when the rotating rod 204 rotates during use, the extension rod 401 is driven to rotate, and the rotation of the extension rod 401 drives the spiral blade 402 to rotate, so that the spiral blade 402 mixes and stirs the raw materials inside the tank body 1 again, thereby improving the dissolution efficiency.

[0038] As a technical optimization solution of the utility model, the filtering assembly 5 includes a second motor 501, a round rod 502, a breaking rod 503 and a filter plate 504. The second motor 501 is bolted to one side of the feed port 201, the round rod 502 is fixedly connected to the output end of the second motor 501, a plurality of breaking rods 503 are fixedly connected to one side of the round rod 502, and the filter plate 504 is arranged inside the feed port 201.

[0039] In this embodiment: by setting a second motor 501, a round rod 502, a breaking rod 503 and a filter plate 504, when raw materials are added to the interior of the tank body 1 through the feed port 201 during use, the second motor 501 is started to drive the round rod 502 to rotate, and drive the breaking rod 503 to break the raw materials. Finally, the crushed raw materials enter the interior of the tank body 1 through the filter plate 504 for mixing and stirring, thereby improving the mixing efficiency.

[0040] As a technical optimization solution of the utility model, the discharging assembly 6 includes a discharging barrel 601, a third motor 602, a discharging rod 603 and a rotating blade 604. The discharging barrel 601 is arranged at the bottom of the discharging valve 202, the third motor 602 is bolted to one side of the discharging barrel 601, the discharging rod 603 is fixedly connected to the output end of the third motor 602, and the rotating blade 604 is fixedly connected to one side of the discharging rod 603.

[0041] In this embodiment: by setting a discharge barrel 601, a third motor 602, a discharge rod 603 and a rotating blade 604, when discharging is needed during use, the discharge valve 202 is started, and the raw materials enter the inside of the discharge barrel 601 from the discharge valve 202, and then the third motor 602 is started to drive the discharge rod 603 to rotate, and the discharge rod 603 drives the rotating blade 604 to rotate so that the raw materials can be discharged evenly from the inside of the discharge barrel 601.

[0042] As a technical optimization solution of the present invention, the storage assembly 7 includes a support rod 701 and a storage groove 702 . The support rod 701 is fixedly connected to the bottom of the tank body 1 , and the storage groove 702 is fixedly connected to the bottom of the support rod 701 .

[0043] In this embodiment, by providing the support rod 701 and the storage groove 702, the storage groove 702 can store the discharged raw materials when in use.

[0044] As a technical optimization solution of the present invention, a temperature plate 8 for controlling the internal temperature of the tank body 1 is provided on one side of the tank body 1 .

[0045] In this embodiment, by providing a temperature plate 8 , the temperature plate 8 can heat the tank body 1 during use, thereby controlling the temperature inside the tank body 1 .

[0046] As a technical optimization solution of the present utility model, a feed hopper 9 is fixedly connected to the top of the feed inlet 201, and the material of the feed hopper 9 is stainless steel.

[0047] In this embodiment, by providing the feed hopper 9 , the feed hopper 9 can be more conveniently fed through the feed opening 201 during use, and the stainless steel material can increase the service life of the feed hopper 9 .

[0048] Working principle: First, when in use, add the corresponding raw materials into the interior of the tank body 1 through the feed port 201, then start the first motor 203, drive the rotating rod 204 to rotate, drive the stirring rod 205 to mix and stir the raw materials inside the tank body 1, so that the raw materials are dissolved. When the stirring rod 205 is stirring, it will drive the rotating ring 301 to rotate, and the rotation of the rotating ring 301 will drive the reinforcing plate 302 to stir the raw materials inside the tank body 1 to improve the efficiency of mixing and dissolving. When the rotating rod 204 rotates, it will drive the extension rod 401 to rotate, and the rotation of the extension rod 401 will drive the spiral blade 402 to rotate, so that the spiral blade 402 stirs the inside of the tank body 1. The raw materials are mixed and stir-fried again to improve the dissolution efficiency. When the raw materials are added to the inside of the tank body 1 through the feeding port 201, the second motor 501 is started to drive the round rod 502 to rotate, and the breaking rod 503 is driven to break the raw materials. Finally, the crushed raw materials enter the inside of the tank body 1 through the filter plate 504 for mixing and stirring to improve the mixing efficiency. When discharging is required, the discharging valve 202 is started, and the raw materials enter the inside of the discharging barrel 601 from the discharging valve 202, and then the third motor 602 is started to drive the discharging rod 603 to rotate. The discharging rod 603 drives the rotating blade 604 to rotate, so that the raw materials can be discharged evenly from the inside of the discharging barrel 601.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A premixing device for preparing a fracturing fluid, comprising a tank (1), characterized in that: A mixing mechanism (2) is arranged inside the tank body (1), a reinforcing component (3) is arranged on one side of the mixing mechanism (2), a stir-frying component (4) is arranged on the bottom of one side of the mixing mechanism (2), a filtering component (5) is arranged on one side of the mixing mechanism (2), a discharging component (6) is arranged on the bottom of the mixing mechanism (2), and a storage component (7) is arranged on the bottom of the tank body (1); The mixing mechanism (2) comprises an inlet (201), a discharge valve (202), a first motor (203), a rotating rod (204) and a stirring rod (205); the inlet (201) is arranged at the top of the tank body (1); the discharge valve (202) is arranged at the bottom of the tank body (1); the first motor (203) is bolted to the top of the tank body (1); the rotating rod (204) is fixedly connected to the output end of the first motor (203); and a plurality of stirring rods (205) are fixedly connected to one side of the rotating rod (204).

2. A premixing device for preparing fracturing fluid according to claim 1, characterized in that: The reinforcing assembly (3) comprises a rotating ring (301) and a reinforcing plate (302); the rotating ring (301) is rotatably connected to one side of the stirring rod (205); and a plurality of reinforcing plates (302) are fixedly connected to one side of the rotating ring (301).

3. A premixing device for preparing fracturing fluid according to claim 1, characterized in that: The stir-frying component (4) comprises an extension rod (401) and a spiral leaf (402), wherein the extension rod (401) is fixedly connected to the bottom of the rotating rod (204), and the spiral leaf (402) is fixedly connected to one side of the extension rod (401).

4. A premixing device for preparing fracturing fluid according to claim 1, characterized in that: The filtering assembly (5) comprises a second motor (501), a round rod (502), a breaking rod (503) and a filter plate (504); the second motor (501) is bolted to one side of the feed inlet (201); the round rod (502) is fixedly connected to the output end of the second motor (501); a plurality of the breaking rods (503) are fixedly connected to one side of the round rod (502); and the filter plate (504) is arranged inside the feed inlet (201).

5. A premixing device for preparing fracturing fluid according to claim 1, characterized in that: The discharging assembly (6) comprises a discharging barrel (601), a third motor (602), a discharging rod (603) and a rotating blade (604); the discharging barrel (601) is arranged at the bottom of the discharging valve (202); the third motor (602) is bolted to one side of the discharging barrel (601); the discharging rod (603) is fixedly connected to the output end of the third motor (602); and the rotating blade (604) is fixedly connected to one side of the discharging rod (603).

6. A premixing device for preparing fracturing fluid according to claim 1, characterized in that: The storage assembly (7) comprises a support rod (701) and a storage groove (702), wherein the support rod (701) is fixedly connected to the bottom of the tank body (1), and the storage groove (702) is fixedly connected to the bottom of the support rod (701).

7. A premixing device for preparing fracturing fluid according to claim 1, characterized in that: A temperature plate (8) for controlling the internal temperature of the tank body (1) is provided on one side of the tank body (1).

8. A premixing device for preparing fracturing fluid according to claim 1, characterized in that: A feed hopper (9) is fixedly connected to the top of the feed opening (201), and the material of the feed hopper (9) is stainless steel.

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