Drag reducer system for slickwater
By designing the stirring structure of the worm gear transmission system, the problem of viscous fracturing fluid drag-reducing agent adhering to the stirring rod was solved, achieving convenient stirring and cleaning effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHIFENG AOLONG CHEM CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional stirring methods cause viscous fracturing fluid drag-reducing agents to easily adhere to the stirring rod, increasing the difficulty of cleaning.
A stirring structure including a rotating ring, a triangular support, a rotating frame, and a worm gear transmission system was designed. The worm gear meshing drives the stirring tank to rotate, thereby achieving full mixing of the fracturing fluid drag reducing agent. After the mixing is completed, the stirring tank is tilted to discharge the raw material to avoid the adhesion of viscous substances.
This technology enables effective mixing of fracturing fluid drag reducers without direct contact with the stirring rod, simplifying the subsequent cleaning process.
Smart Images

Figure CN224252634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drag-reducing agents, and in particular to a drag-reducing agent system for slick water. Background Technology
[0002] Fracturing fluid drag reducers are used in oilfield production enhancement operations. A large amount of fracturing fluid is pumped to boreholes at depths of approximately 500 to 6000 meters or even deeper under high pressure and high flow rate conditions, causing the rock strata around the wellbore to crack.
[0003] In real life, the production of fracturing fluid drag reducers requires the use of equipment such as electronic balances, densitometers, closed-loop pipeline friction measuring instruments, stirrers, viscometers, electric thermostatic water baths, drying ovens, and centrifuges. The raw materials for producing fracturing fluid drag reducers are then transported to a reaction vessel for stirring and reaction.
[0004] The fracturing fluid drag reducer is viscous after production. Using traditional stirring methods, the viscous fracturing drag reducer can easily adhere to the stirring rod, making it inconvenient to clean later and increasing the difficulty of cleaning.
[0005] Therefore, it is necessary to provide a drag-reducing agent system for slick water to solve the above-mentioned technical problems. Utility Model Content
[0006] This invention provides a drag-reducing agent system for slickwater, which solves the problem that the viscous drag-reducing agent in fracturing fluid is easy to adhere to the stirring rod when using a transmission stirring structure for mixing because the fracturing fluid drag-reducing agent is viscous after production, making it inconvenient to clean later.
[0007] To solve the above-mentioned technical problems, the drag-reducing agent system for slick water provided by this utility model includes: a base plate;
[0008] The mounting plate is mounted on top of the base plate via four support rods. A triangular bracket with a rotating ring is mounted on each side of the top of the mounting plate. One end of one of the rotating rings is fixedly connected to a first bevel gear. A rotating frame is rotatably connected between the two triangular brackets via a first and a second rotating shaft. A transmission housing is mounted at the bottom of the rotating frame. A fixed rod is rotatably connected inside the transmission housing via a fixing buckle. A first worm and a second worm wheel are fixedly connected to both ends of the fixed rod, respectively. A rotating rod is rotatably connected to one side of the top of the transmission housing. A second bevel gear is fixedly connected to one end of the rotating rod, and a second worm is fixedly connected to the other end of the rotating rod. A first worm wheel is rotatably connected to the top of the inner wall of the transmission housing near the other side. A mounting buckle is mounted on one side of the rotating frame. A drive assembly is mounted on the other side of one of the triangular brackets via a support plate.
[0009] Two rotating buckles are installed on the top and bottom of the inner wall of the rotating frame. The top of one of the rotating buckles is rotatably connected to a mixing tank. A connecting rod is fixedly connected to the top of the mixing tank. A pipe is installed on the top of the mixing tank. The other end of the pipe is connected to a connector via a valve.
[0010] The first and second rotating shafts are mounted inside the two rotating rings via bearings. The second worm and the second worm wheel are meshed together. The first bevel gear and the second bevel gear are meshed together. The first worm and the first worm wheel are meshed together. The first worm wheel passes through the transmission housing and the rotating frame and is connected to one end of the mixing tank. Thus, the mixing tank can be driven to rotate by the first worm wheel. The mounting buckle is used to install the rotating rod, allowing it to rotate but not move. The output end of the drive assembly is connected to the other end of the first rotating shaft. The connecting rod is rotatably connected to another rotating buckle. When the valve is opened, the raw materials can be transported into the interior of the mixing tank. When the valve is closed, the pipeline is sealed.
[0011] Preferably, the mounting plate has an opening at the top, and a fixing piece is mounted on the top of the base plate;
[0012] The retaining plate is located directly below the opening.
[0013] Preferably, a telescopic rod is fixedly connected to the top of the fixing plate, and a support frame is installed at the top of the telescopic rod;
[0014] The support frame contacts the bottom of the rotating frame when it needs to stop.
[0015] Preferably, a mounting base is mounted on the front of the mounting plate, and a control switch is mounted on the front of the mounting base.
[0016] Preferably, a control box is mounted on the top of the base plate, and a door is rotatably connected to the front of the control box;
[0017] The box door is equipped with a lock.
[0018] Preferably, the drive assembly includes a protective shell, and the protective shell has heat dissipation holes on both the front and back sides, and a drive motor is installed inside the protective shell;
[0019] The output end of the drive motor is connected to the first rotating shaft.
[0020] Compared with related technologies, the drag-reducing agent system for slick water provided by this utility model has the following beneficial effects:
[0021] This invention provides a drag-reducing agent system for slickwater applications. To facilitate cleaning of the stirring structure used in the fracturing fluid drag-reducing agent production process, two triangular supports with rotating rings are first mounted on a mounting plate. Between the two triangular supports, a rotating frame is installed via a first and a second rotating shaft. Inside the rotating frame, a rotating mixing tank is installed via two rotating buckles and a connecting rod. Then, the first and second bevel gears are connected, and the rotating rod and the internal structure of the transmission housing drive the mixing tank to rotate. In actual use, the pre-mixed fracturing fluid drag-reducing agent raw materials are simply transported from the pipeline into the mixing tank. Afterward, the valve is closed, and the drive assembly is started. The mixing tank is then rotated via the two first rotating shafts and... The second rotating shaft drives the rotating frame to rotate. During the rotation of the rotating frame, the second bevel gear rotates along the first bevel gear, which in turn drives the rotating rod to rotate. As the rotating rod rotates, it drives the fixed rod to rotate through the second worm and the second worm wheel. This, in turn, drives the mixing tank inside the rotating frame to rotate through the first worm and the first worm wheel, thus fully mixing the raw materials inside the mixing tank. After mixing, simply turn the end of the mixing tank with the pipe downwards and open the valve to discharge the generated fracturing fluid drag reducing agent. This structure allows the fracturing fluid drag reducing agent raw materials to be mixed in the mixing tank without direct contact with the raw materials, preventing the viscous fracturing fluid drag reducing agent from adhering to the mixing rod and facilitating the cleaning of the mixing tank later. Attached Figure Description
[0022] Figure 1 A schematic diagram of a preferred embodiment of the drag-reducing agent system for slickwater provided by this utility model;
[0023] Figure 2 A schematic diagram of the structure of the mixing tank is provided for this utility model;
[0024] Figure 3 This invention provides a structural schematic diagram of the first worm gear;
[0025] Figure 4 Provided for this utility model Figure 1 An enlarged view of point A shown;
[0026] Figure 5 A schematic diagram of the drive motor is provided for this utility model.
[0027] The diagram is labeled as follows: 1. Base plate, 2. Telescopic rod, 3. Fixing plate, 4. Control box, 5. Box door, 6. Support rod, 7. Control switch, 8. Mounting base, 9. Mounting plate, 10. Triangular bracket, 11. Support plate, 12. Drive assembly, 121. Drive motor, 122. Heat dissipation hole, 123. Protective shell, 13. First rotating shaft, 14. Rotating ring, 15. First bevel gear, 16. Rotating buckle, 17. Connecting rod, 18. Rotating frame, 19. Second rotating shaft, 20. Second bevel gear, 21. Rotating rod, 22. Mounting buckle, 23. Transmission shell, 24. Mixing tank, 25. Opening, 26. Support frame, 27. First worm gear, 28. First worm wheel, 29. Fixing buckle, 30. Second worm gear, 31. Second worm wheel, 32. Fixing rod, 33. Valve, 34. Connector, 35. Pipe. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0029] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 ,in, Figure 1 A schematic diagram of a preferred embodiment of the drag-reducing agent system for slickwater provided by this utility model; Figure 2 A schematic diagram of the structure of the mixing tank is provided for this utility model; Figure 3 This invention provides a structural schematic diagram of the first worm gear; Figure 4 Provided for this utility model Figure 1 An enlarged view of point A shown; Figure 5 This invention provides a schematic diagram of the drive motor structure. The drag-reducing agent system for slickwater includes: a base plate 1;
[0030] Mounting plate 9 is mounted on top of base plate 1 via four support rods 6. Near the two sides of the top of mounting plate 9, each mounting plate has a triangular bracket 10 with a rotating ring 14. One end of one of the rotating rings 14 is fixedly connected to a first bevel gear 15. A rotating frame 18 is rotatably connected between the two triangular brackets 10 via a first rotating shaft 13 and a second rotating shaft 19. A transmission housing 23 is mounted at the bottom of the rotating frame 18. A fixing rod 32 is rotatably connected inside the transmission housing 23 via a fixing buckle 29. The two ends of 32 are respectively fixedly connected to a first worm 27 and a second worm wheel 31. The top of the transmission housing 23 is rotatably connected to a rotating rod 21 near one side. One end of the rotating rod 21 is fixedly connected to a second bevel gear 20, and the other end of the rotating rod 21 is fixedly connected to a second worm 30. The top of the inner wall of the transmission housing 23 is rotatably connected to a first worm wheel 28 near the other side. A mounting buckle 22 is installed on one side of the rotating frame 18. The other side of one of the triangular brackets 10 is connected to a drive assembly 12 via a support plate 11.
[0031] Two rotating buckles 16 are installed on the top and bottom of the inner wall of the rotating frame 18. The top of one of the rotating buckles 16 is rotatably connected to the mixing tank 24. The top of the mixing tank 24 is fixedly connected to the connecting rod 17. The top of the mixing tank 24 is equipped with a pipe 35. The other end of the pipe 35 is connected to a connector 34 through a valve 33.
[0032] The first rotating shaft 13 and the second rotating shaft 19 are mounted inside the two rotating rings 14 via bearings. The second worm 30 and the second worm wheel 31 are meshed together. The first bevel gear 15 and the second bevel gear 20 are meshed together. The first worm 27 and the first worm wheel 28 are meshed together. The first worm wheel 28 passes through the transmission housing 23 and the rotating frame 18 and connects to one end of the mixing tank 24, so that the mixing tank 24 can be driven to rotate by the first worm wheel 28. The mounting buckle 22 is used to install the rotating rod 21 so that it can rotate but will not move. The output end of the drive assembly 12 is connected to the other end of the first rotating shaft 13. The connecting rod 17 is rotatably connected to another rotating buckle 16. When the valve 33 is opened, the raw material can be transported into the interior of the mixing tank 24. When the valve 33 is closed, the pipe 35 is sealed. The connector 34 is used to connect the pipe for transporting raw materials to the valve 33. After the raw material is transported through, the pipe connected to the connector 34 needs to be removed.
[0033] The mounting plate 9 has an opening 25 at the top, and the base plate 1 has a fixing piece 3 installed on its top.
[0034] The fixing plate 3 is located directly below the opening 25 and is fixed to the top of the base plate 1 by bolts.
[0035] The top of the fixing plate 3 is fixedly connected to a telescopic rod 2, and a support frame 26 is installed at the top of the telescopic rod 2;
[0036] The support frame 26 contacts the bottom of the rotating frame 18 when the rotating frame 18 needs to be stopped, so as to prevent the rotating frame 18 from rotating.
[0037] A mounting base 8 is mounted on the front of the mounting plate 9, and a control switch 7 is mounted on the front of the mounting base 8.
[0038] The control switch 7 can control the operation of the equipment on the base plate 1.
[0039] A control box 4 is installed on the top of the base plate 1, and a door 5 is rotatably connected to the front of the control box 4.
[0040] The door 5 is equipped with a lock, and the control box 4 contains a power switch.
[0041] The drive assembly 12 includes a protective shell 123, and heat dissipation holes 122 are provided on both the front and back of the protective shell 123. A drive motor 121 is installed inside the protective shell 123.
[0042] The output end of the drive motor 121 is connected to the first rotating shaft 13, and the heat dissipation hole 122 is for auxiliary heat dissipation.
[0043] The working principle of the drag-reducing agent system for slick water provided by this utility model is as follows:
[0044] First, two triangular brackets 10 with rotating rings 14 are installed on the mounting plate 9. Between the two triangular brackets 10, a rotating frame 18 is installed via a first rotating shaft 13 and a second rotating shaft 19. Inside the rotating frame 18, a rotating mixing tank 24 is installed via two rotating buckles and a connecting rod 17. Then, the first bevel gear 15 and the second bevel gear 20 are connected. The rotating rod 21 and the internal structure of the transmission housing 23 drive the mixing tank 24 to rotate. In actual use, the pre-mixed fracturing fluid drag-reducing agent raw materials are simply transported from the pipeline 35 into the mixing tank 24. Then, the valve 33 is closed, and the drive assembly 12 is started. The rotating frame 18 can be driven to rotate by the two first rotating shafts 13 and the second rotating shaft 19. During the rotation of the rotating frame 18, the second bevel gear 20 will rotate along the first bevel gear 15, thereby driving the rotating rod 21 to rotate. During the rotation of the rotating rod 21, the fixed rod 32 will be driven to rotate through the second worm 30 and the second worm wheel 31. Thus, the mixing tank 24 inside the rotating frame 18 can be driven to rotate through the first worm 27 and the first worm wheel 28, thereby fully mixing the raw materials inside the mixing tank 24. After the mixing is completed, simply turn the end of the mixing tank 24 with the pipe 35 downwards, and then open the valve 33 to discharge the generated fracturing fluid drag reducing agent.
[0045] Compared with related technologies, the drag-reducing agent system for slick water provided by this utility model has the following beneficial effects:
[0046] To facilitate subsequent cleaning of the stirring structure used in the fracturing fluid drag reducing agent production process, two triangular brackets 10 with rotating rings 14 are first installed on the mounting plate 9. Between the two triangular brackets 10, a rotating frame 18 is installed via a first rotating shaft 13 and a second rotating shaft 19. Inside the rotating frame 18, a rotating mixing tank 24 is installed via two rotating buckles and a connecting rod 17. Then, the first bevel gear 15 and the second bevel gear 20 are connected. The rotating rod 21 and the internal structure of the transmission housing 23 drive the mixing tank 24 to rotate. In actual use, the prepared fracturing fluid drag reducing agent production raw materials are simply transported from the pipeline 35 into the mixing tank 24. Afterwards, the valve 33 is closed, and the drive assembly 12 is started, which drives the mixing tank 24 to rotate via the two first rotating shafts 13 and the second rotating shaft 19. The frame 18 rotates, and during this rotation, the second bevel gear 20 rotates along the first bevel gear 15, which in turn drives the rotating rod 21 to rotate. The rotating rod 21, in turn, drives the fixed rod 32 to rotate via the second worm 30 and the second worm wheel 31. This, in turn, drives the mixing tank 24 inside the frame 18 to rotate via the first worm 27 and the first worm wheel 28, thus thoroughly mixing the raw materials inside the mixing tank 24. After mixing, simply turn the end of the mixing tank 24 with the pipe 35 downwards, and then open the valve 33 to discharge the generated fracturing fluid drag-reducing agent. This structure allows the fracturing fluid drag-reducing agent raw material to be mixed in the mixing tank 24 without direct contact with the raw materials, preventing the viscous fracturing fluid drag-reducing agent from adhering to the mixing rod and facilitating subsequent cleaning of the mixing tank 24.
[0047] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A drag-reducing agent system for slick water, characterized in that, include: Base plate; The mounting plate is mounted on top of the base plate via four support rods. A triangular bracket with a rotating ring is mounted on each side of the top of the mounting plate. One end of one of the rotating rings is fixedly connected to a first bevel gear. A rotating frame is rotatably connected between the two triangular brackets via a first and a second rotating shaft. A transmission housing is mounted at the bottom of the rotating frame. A fixed rod is rotatably connected inside the transmission housing via a fixing buckle. A first worm and a second worm wheel are fixedly connected to both ends of the fixed rod, respectively. A rotating rod is rotatably connected to one side of the top of the transmission housing. A second bevel gear is fixedly connected to one end of the rotating rod, and a second worm is fixedly connected to the other end of the rotating rod. A first worm wheel is rotatably connected to the top of the inner wall of the transmission housing near the other side. A mounting buckle is mounted on one side of the rotating frame. A drive assembly is mounted on the other side of one of the triangular brackets via a support plate. Two rotating buckles are installed on the top and bottom of the inner wall of the rotating frame. The top of one of the rotating buckles is rotatably connected to a mixing tank. A connecting rod is fixedly connected to the top of the mixing tank. A pipe is installed on the top of the mixing tank. The other end of the pipe is connected to a connector via a valve.
2. The drag-reducing agent system for slick water according to claim 1, characterized in that, The mounting plate has an opening at the top, and a fixing plate is mounted on the top of the base plate.
3. The drag-reducing agent system for slick water according to claim 2, characterized in that, A telescopic rod is fixedly connected to the top of the fixing plate, and a support frame is installed at the top of the telescopic rod.
4. The drag-reducing agent system for slick water according to claim 1, characterized in that, A mounting base is mounted on the front of the mounting plate, and a control switch is mounted on the front of the mounting base.
5. The drag-reducing agent system for slick water according to claim 1, characterized in that, A control box is mounted on the top of the base plate, and a door is rotatably connected to the front of the control box.
6. The drag-reducing agent system for slick water according to claim 1, characterized in that, The drive assembly includes a protective shell with heat dissipation holes on both the front and back sides, and a drive motor is installed inside the protective shell.