Rapid fracturing fluid mixing device for oil exploitation site
By introducing a cleaning and stirring mechanism into the fracturing fluid mixing device, the problem of fracturing fluid denaturation caused by rapid stirring is solved, a fast, uniform and efficient mixing process is achieved, and the work efficiency and fracturing fluid quality at the oil production site are improved.
Patent Information
- Application Number
- CN202422631918.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing rapid mixing devices for fracturing fluids at oil production sites easily cause fracturing fluid denaturation during rapid mixing, affecting normal use.
A rapid fracturing fluid mixing device including a cleaning mechanism and a stirring mechanism is designed. The cleaning mechanism achieves rapid cleaning through a water spray ring and a nozzle, and the stirring mechanism achieves rapid and uniform mixing through multiple sets of stirring rods. The motor speed can be adjusted to adapt to the requirements of materials with different viscosities and densities.
It achieves fast and efficient mixing of fracturing fluid, ensures the cleanliness of the inner wall of the mixing barrel and the uniformity of the material, and improves the work efficiency and quality of the fracturing fluid at the oil production site.
Smart Images
Figure CN223404835U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rapid fracturing fluid mixing, in particular to a rapid fracturing fluid mixing device at an oil production site. Background Art
[0002] Fracturing fluid refers to a heterogeneous, unstable chemical system composed of multiple additives in a specific ratio. It is the working fluid used to fractur e oil and gas reservoirs. Its primary function is to create fractures and carry sand. It transmits the high pressure generated by surface equipment into the formation, causing it to fracture and form cracks, along which proppant is transported. The fracturing fluid must be compatible with the formation rock and reservoir fluids, and minimize damage to the proppant permeability.
[0003] Patent CN216260085U discloses a fracturing fluid mixing device, including a tank body, which is provided with a feed port and a discharge port; a rotating shaft is rotatably mounted on the tank body, and a stirring structure for stirring the fracturing fluid is provided on the outer peripheral surface of the rotating shaft; the rotating shaft is transmission-connected to a first power mechanism, and the first power mechanism is used to drive the rotating shaft to rotate; the fracturing fluid mixing device also includes a partition, which is fixedly arranged in the tank body and divides the inner cavity of the tank body into two upper and lower chambers, the upper chamber is connected to the feed port, and the lower chamber is connected to the discharge port, and the partition is provided with a through hole that passes through the upper and lower parts; a cylinder is fixed on the lower side of the partition, and the upper end of the cylinder has an opening, which corresponds to and is connected to the through hole in the upper and lower parts, and a sealing plate is provided at the lower end of the cylinder, and a liquid hole communicating with the lower chamber is provided on the outer peripheral surface of the cylinder.
[0004] At present, when preparing fracturing fluid at the traditional oil production site, the rapid mixing device needs to be used quickly due to the instability of the fracturing fluid itself. Although the use of multiple groups of continuous stirring can reduce precipitation, it can also easily cause the fracturing fluid to denature, affecting normal use. Utility Model Content
[0005] The purpose of the utility model is to provide a rapid mixing device for fracturing fluid at an oil production site, so as to solve the problem that when the rapid mixing device for fracturing fluid at an oil production site proposed in the above-mentioned background technology is actually used to prepare fracturing fluid, due to the instability of the fracturing fluid itself, rapid preparation is required. Although the use of multiple groups of continuous stirring can reduce precipitation, it is also easy to cause denaturation of the fracturing fluid, affecting normal use.
[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a rapid fracturing fluid mixing device for oil production site, comprising a mixing barrel, a bracket being provided at the lower end of the mixing barrel, a feed pipe being provided at the lower end of the mixing barrel, a cleaning mechanism being connected through one side of the mixing barrel, a barrel cover being bolted to the upper end of the mixing barrel, a thickener inlet being connected through one side of the upper end of the barrel cover, a stirring mechanism being detachably connected to the upper end of the barrel cover, and a raw material inlet being connected through one side of the upper end of the barrel cover;
[0007] The cleaning mechanism includes a tee pipe, one side of which is connected to one side of the mixing cylinder, a valve is provided on the outer wall of the tee pipe, a water spray ring is provided at one end of the tee pipe, a nozzle is fixedly connected to the lower end of the water spray ring, a connecting flange is fixedly connected to one side of the tee pipe, a filter cylinder is overlapped on the inner wall of the connecting flange, and a pipeline is bolted to one side of the connecting flange.
[0008] Preferably, the upper end of the bracket is fixedly connected to the lower end of the mixing cylinder, and the upper end of the discharge pipe is fixedly connected to the lower end of the mixing cylinder.
[0009] Preferably, the outer wall of the three-way pipe is sleeved with the inner wall of the valve, and one side of the three-way pipe is connected to one side of the water spray ring.
[0010] Preferably, the lower end of the water spray ring is provided with twenty nozzles distributed in a circular shape and at equal intervals.
[0011] Preferably, the stirring mechanism includes a motor, the lower end of the motor is detachably connected to the upper end of the mixing barrel, the output shaft of the motor is provided with a rotating rod, the outer wall of the rotating rod is provided with a stirring rod 1, the outer wall of the rotating rod is rotatably connected to a rotating sub-shaft, the outer wall of the rotating sub-shaft is fixedly connected to a stirring rod 2, one end of the rotating sub-shaft is fixedly connected to a threaded head, and the outer wall of the threaded head is meshedly connected to a threaded ring.
[0012] Preferably, the output shaft of the motor is in transmission connection with the upper end of the rotating rod, and the outer wall of the rotating rod is fixedly connected to one end of the stirring rod.
[0013] Preferably, the stirring rods are symmetrically mounted on the outer walls at both ends of the rotating rod.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. The cleaning mechanism can enable the equipment to be cleaned quickly and effectively, thereby reducing equipment maintenance time and improving work efficiency. It can ensure that the inner wall of the mixing barrel is thoroughly cleaned after each mixing operation to avoid residues affecting the quality and efficiency of the next mixing, and provide a good mixing environment for the mixing of fracturing fluids;
[0016] 2. The stirring mechanism can enable the equipment to stir quickly and effectively, thereby improving the mixing efficiency and quality. Since the stirring rods are symmetrically installed on the outer walls of both ends of the rotating rod, the materials in the mixing barrel can be evenly mixed, avoiding the material stratification phenomenon caused by uneven stirring. In addition, the speed of the motor can be controlled and adjusted to meet the mixing requirements of materials with different viscosities and densities. It not only improves the mixing efficiency and quality, but also has good stability and adaptability, providing practicality for the rapid mixing of fracturing fluids at oil production sites. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the cleaning mechanism of the present utility model;
[0019] Figure 3 This is a schematic diagram of the stirring mechanism of the present utility model;
[0020] Figure 4 It is a side view schematic cross-section diagram of the three-dimensional structure of the present invention.
[0021] In the figure: 1. Mixing barrel; 2. Bracket; 3. Feeding pipe; 4. Cleaning mechanism; 5. Cylinder cover; 6. Thickener inlet; 7. Stirring mechanism; 8. Raw material inlet; 41. Tee; 42. Valve; 43. Water spray ring; 44. Spray head; 45. Connecting flange; 46. Filter barrel; 47. Pipeline; 71. Motor; 72. Rotating rod; 73. Stirring rod 1; 74. Rotating countershaft; 75. Stirring rod 2; 76. Threaded head; 77. Threaded ring. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] See also Figure 1 and Figure 4The utility model provides a technical solution: a rapid mixing device for fracturing fluid at an oil production site, comprising a mixing barrel 1, a bracket 2 is provided at the lower end of the mixing barrel 1, a feed pipe 3 is provided at the lower end of the mixing barrel 1, a cleaning mechanism 4 is connected through one side of the mixing barrel 1, a barrel cover 5 is bolted to the upper end of the mixing barrel 1, a thickener inlet 6 is passed through one side of the upper end of the barrel cover 5, a stirring mechanism 7 is detachably connected to the upper end of the barrel cover 5, a raw material inlet 8 is passed through one side of the upper end of the barrel cover 5, and the cleaning mechanism 4 includes a three-way pipe 41, one side of the tee pipe 41 is connected to one side of the mixing cylinder 1, a valve 42 is provided on the outer wall of the tee pipe 41, a water spray ring 43 is provided at one end of the tee pipe 41, a nozzle 44 is fixedly connected to the lower end of the water spray ring 43, a connecting flange 45 is fixedly connected to one side of the tee pipe 41, a filter cartridge 46 is overlapped on the inner wall of the connecting flange 45, and a pipe 47 is bolted to one side of the connecting flange 45, the upper end of the bracket 2 is fixedly connected to the lower end of the mixing cylinder 1, and the upper end of the discharge pipe 3 is fixedly connected to the lower end of the mixing cylinder 1;
[0024] Before the mixing work, the valves 42 on the three-way pipe 41 are all closed, and the raw materials are fed into the interior of the mixing cylinder 1 from the raw material inlet 8 on the top of the mixing cylinder 1. Then, the thickener is added to the mixing cylinder 1 through the thickener inlet 6. The fracturing fluid is prepared on site to avoid the instability of the fracturing fluid affecting the oil production work. During the actual preparation, the raw material inlet 8 is used to feed the raw materials, and then the valve 42 on the three-way pipe 41 is opened to input water into the mixing cylinder 1. The water is filtered through the filter cylinder 46 before entering the mixing cylinder 1 to ensure that the water is clean. The incoming water source is clean and pollution-free. After the water delivery is completed, the valve 42 on the three-way pipe 41 is closed. A threaded head 76 is provided at the end of the stirring rod 2 75. The threaded head 76 has bevel teeth. A threaded ring 77 is fixed to the inner wall of the mixing barrel 1. The bottom of the threaded ring 77 has bevel teeth meshing with the threaded head 76. The threaded head 76 cooperates with the threaded ring 77 to realize the rotational movement of the stirring rod 1 73 and the stirring rod 2. In actual application, the thickener inlet 6 is used to inject the thickener into the mixing barrel 1, and the raw material inlet 8 is used to add other raw materials.
[0025] See also Figure 2 In order to quickly clean the inner wall of the mixing cylinder 1, the outer wall of the tee pipe 41 is connected to the inner wall of the valve 42, and one side of the tee pipe 41 is connected to one side of the water spray ring 43. The lower end of the water spray ring 43 has 20 nozzles 44 distributed in an annular shape at equal intervals;
[0026] By controlling the opening and closing of the valve 42, the water spraying pressure and flow rate of the cleaning mechanism 4 can be adjusted to ensure that the inner wall of the mixing cylinder 1 is fully cleaned. During the specific operation, the raw materials are first added to the mixing cylinder 1 through the raw material inlet 8, and then an appropriate amount of thickener is added through the thickener inlet 6. Then the motor 71 is started, and the output end of the motor 71 can drive the rotating rod 72 to rotate, so that the raw materials and thickener are fully mixed in the mixing cylinder 1. After the mixing is completed, if the mixing cylinder 1 needs to be cleaned, the valve 42 can be opened, and cleaning water can be introduced through the three-way pipe 41. The inner wall of the mixing cylinder 1 is flushed using the water spray ring 43 and the nozzle 44 to ensure the cleanliness of the mixing cylinder 1 and avoid material residue affecting the subsequent mixing quality, thereby achieving fast and efficient mixing of the fracturing fluid, while ensuring the cleanliness of the mixing process and the uniformity of the raw materials, greatly improving the efficiency and quality of the fracturing operation.
[0027] See also Figure 3 In order to quickly stir and mix the raw materials in the mixing barrel 1, the stirring mechanism 7 includes a motor 71. The lower end of the motor 71 is detachably connected to the upper end of the mixing barrel 1. The output shaft of the motor 71 is provided with a rotating rod 72. The outer wall of the rotating rod 72 is provided with a stirring rod 1 73. The outer wall of the rotating rod 72 is rotatably connected to a rotating countershaft 74. The outer wall of the rotating countershaft 74 is fixedly connected to a stirring rod 2 75. One end of the rotating countershaft 74 is fixedly connected to a threaded head 76. The outer wall of the threaded head 76 is meshedly connected to a threaded ring 77. The output shaft of the motor 71 is transmission-connected to the upper end of the rotating rod 72. The outer wall of the rotating rod 72 is fixedly connected to one end of the stirring rod 1 73. The stirring rod 1 73 is symmetrically mounted on the outer walls of both ends of the rotating rod 72.
[0028] A motor 71 is provided at the center of the upper end of the barrel cover 5, and a rotating rod 72 is provided at the output end of the motor 71. When mixing, the rotating rod 72 is driven to rotate by the driving motor 71, and the motor 71 drives the stirring rod 1 73 and the stirring rod 2 75 to rotate through the rotating rod 72, and the raw materials are fully stirred and mixed by the rotating rod 72. A stirring rod 1 and a stirring rod 2 75 on a rotating sub-shaft 74 are provided on the rotating rod 72. The multiple stirring rods 1 73 are fixed on the outer wall of the rotating rod 72 in two groups, and each group of stirring rods 1 73 is arranged at equal intervals along the circumferential direction of the rotating rod 72. A rotating sub-shaft 74 is provided between the stirring rods 2 75, and the rotating sub-shaft 74 is rotatably mounted on the outer wall of the rotating rod 72. A threaded head 76 is provided at one end of the rotating sub-shaft 74. The outer wall of the threaded head 76 is meshed and connected with the lower end of the threaded ring 77, and a plurality of stirring rods 2 arranged perpendicular to and fixedly connected to the rotating sub-shaft 74 are provided on the rotating sub-shaft 74. 75. When the motor 71 drives the rotating rod 72 to rotate, the stirring rod 1 73 and the rotating sub-shaft 74 rotate under the drive of the rotating rod 72 to stir and mix the raw materials. At the same time, the threaded head 76 contacts the threaded ring 77 and rotates under the action of the threaded ring 77, driving the stirring rod 2 75 to rotate, so that when stirring and mixing, a multi-directional stirring effect can be obtained, the uniformity of the mixing is ensured, and the mixing efficiency is improved at the same time, and fast mixing is achieved. The rotation speed of the rotating rod 72 can be adjusted by the speed regulating device of the motor 71 to adapt to different mixing requirements. When the raw materials and thickener in the mixing barrel 1 reach the predetermined mixing ratio and uniformity, the motor 71 is controlled to stop and the mixing process is completed. In order to further improve the mixing efficiency and quality, a fast, uniform and high-quality mixing process is achieved, which greatly improves the work efficiency at the oil production site and the quality of the fracturing fluid.
[0029] Working principle: First, the valves 42 on the three-way pipe 41 are all in the closed state before the mixing work, and the raw materials are fed into the interior of the mixing cylinder 1 from the raw material inlet 8 on the top of the mixing cylinder 1, and then the thickener is added to the mixing cylinder 1 through the thickener inlet 6, and the fracturing fluid is prepared on site to avoid the instability of the fracturing fluid affecting the oil production work. During the actual preparation, the raw material inlet 8 is used to put the raw materials, and then the valve 42 on the three-way pipe 41 is opened to input water into the mixing cylinder 1. The water is filtered through the filter cylinder 46 before entering the mixing cylinder 1 to ensure that the water source entering is clean and pollution-free. After the water is transported, the valve 42 on the three-way pipe 41 is closed, and a threaded head 76 is provided at the end of the stirring rod 2 75. The threaded head 76 has bevel teeth, and a threaded ring 77 is fixed to the inner wall of the mixing cylinder 1. The bottom of the threaded ring 77 has bevel teeth meshing with the threaded head 76. The threaded head 76 cooperates with the threaded ring 77 to realize the rotation of the stirring rod 1 73 and the stirring rod 2. In actual application, The thickener inlet 6 is used to inject thickener into the mixing cylinder 1, while the raw material inlet 8 is used to add other raw materials. By controlling the opening and closing of the valve 42, the water spray pressure and flow rate of the cleaning mechanism 4 can be adjusted to ensure that the inner wall of the mixing cylinder 1 is fully cleaned. In the specific operation process, the raw material is first added to the mixing cylinder 1 through the raw material inlet 8, and then an appropriate amount of thickener is added through the thickener inlet 6. Then the motor 71 is started, and the output end of the motor 71 can drive the rotating rod 72 to rotate, so that the raw material and the thickener are fully mixed in the mixing cylinder 1. After the mixing is completed, if the mixing cylinder 1 needs to be cleaned, the valve 42 can be opened, and cleaning water can be introduced through the three-way pipe 41. The inner wall of the mixing cylinder 1 is flushed with the water spray ring 43 and the nozzle 44 to ensure the cleanliness of the mixing cylinder 1 and avoid material residue affecting the subsequent mixing quality, thereby achieving fast and efficient mixing of the fracturing fluid, while ensuring the cleanliness of the mixing process and the uniformity of the raw materials, greatly improving the efficiency and quality of the fracturing operation;
[0030] The motor 71 is then provided at the center of the upper end of the cylinder cover 5, and a rotating rod 72 is provided at the output end of the motor 71. When mixing, the rotating rod 72 is driven by the driving motor 71 to rotate. The motor 71 drives the stirring rod 1 73 and the stirring rod 2 75 to rotate through the rotating rod 72, and the raw materials are fully stirred and mixed by the rotating rod 72. The stirring rod 1 and the stirring rod 2 75 on the rotating countershaft 74 are provided on the rotating rod 72. The multiple stirring rods 1 73 are fixed on the outer wall of the rotating rod 72 in two groups. Each group of stirring rods 1 73 is arranged at equal intervals along the circumferential direction of the rotating rod 72. A rotating countershaft 74 is provided between the stirring rods 2 75. The rotating countershaft 74 is rotatably mounted on the outer wall of the rotating rod 72, and a threaded head 76 is provided at one end of the rotating countershaft 74. The outer wall of the threaded head 76 is meshed and connected with the lower end of the threaded ring 77. The rotating countershaft 74 is provided with a plurality of stirring rods 2 75 arranged perpendicular to each other and fixedly connected thereto. When the motor 71 drives the rotating rod 72 to rotate, the stirring rod 1 7 3. The rotating secondary shaft 74 rotates under the drive of the rotating rod 72 to stir and mix the raw materials. At the same time, the threaded head 76 contacts the threaded ring 77 and rotates under the action of the threaded ring 77, driving the stirring rod 2 75 to rotate, so that when stirring and mixing, a multi-directional stirring effect can be obtained, ensuring the uniformity of the mixing, while improving the mixing efficiency and achieving rapid mixing. The rotation speed of the rotating rod 72 can be adjusted by the speed regulating device of the motor 71 to meet different mixing requirements. When the raw materials and thickener in the mixing barrel 1 reach a predetermined mixing ratio and uniformity, the motor 71 is controlled to stop and the mixing process is completed. In order to further improve the mixing efficiency and quality, a fast, uniform and high-quality mixing process is achieved, which greatly improves the work efficiency and quality of the oil production site. The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.
[0031] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rapid mixing device for fracturing fluid at an oil production site, comprising a mixing cylinder (1), characterized in that: The lower end of the mixing barrel (1) is provided with a bracket (2), the lower end of the mixing barrel (1) is provided with a feed pipe (3), one side of the mixing barrel (1) is connected to a cleaning mechanism (4), the upper end of the mixing barrel (1) is bolted to a barrel cover (5), one side of the upper end of the barrel cover (5) is connected to a thickener inlet (6), the upper end of the barrel cover (5) is detachably connected to a stirring mechanism (7), and one side of the upper end of the barrel cover (5) is connected to a raw material inlet (8); The cleaning mechanism (4) comprises a three-way pipe (41), one side of the three-way pipe (41) is connected to one side of the mixing cylinder (1), a valve (42) is provided on the outer wall of the three-way pipe (41), one end of the three-way pipe (41) is provided with a water spray ring (43), the lower end of the water spray ring (43) is fixedly connected to a nozzle (44), one side of the three-way pipe (41) is fixedly connected to a connecting flange (45), the inner wall of the connecting flange (45) is overlapped with a filter cylinder (46), and one side of the connecting flange (45) is bolted to a pipe (47).
2. The rapid mixing device for fracturing fluid at oil production site according to claim 1, characterized in that: The upper end of the bracket (2) is fixedly connected to the lower end of the mixing barrel (1), and the upper end of the discharge pipe (3) is fixedly connected to the lower end of the mixing barrel (1).
3. The rapid mixing device for fracturing fluid at oil production site according to claim 1, characterized in that: The outer wall of the three-way pipe (41) is sleeved with the inner wall of the valve (42), and one side of the three-way pipe (41) is connected to one side of the water spray ring (43).
4. The rapid mixing device for fracturing fluid at oil production site according to claim 3, characterized in that: Twenty spray heads (44) are distributed in an annular shape and at equal intervals at the lower end of the water spray ring (43).
5. The rapid mixing device for fracturing fluid at oil production site according to claim 1, characterized in that: The stirring mechanism (7) comprises a motor (71), the lower end of the motor (71) is detachably connected to the upper end of the mixing barrel (1), the output shaft of the motor (71) is provided with a rotating rod (72), the outer wall of the rotating rod (72) is provided with a stirring rod 1 (73), the outer wall of the rotating rod (72) is rotatably connected to a rotating sub-shaft (74), the outer wall of the rotating sub-shaft (74) is fixedly connected to a stirring rod 2 (75), one end of the rotating sub-shaft (74) is fixedly connected to a threaded head (76), and the outer wall of the threaded head (76) is meshedly connected to a threaded ring (77).
6. The rapid mixing device for fracturing fluid at oil production site according to claim 5, characterized in that: The output shaft of the motor (71) is in transmission connection with the upper end of the rotating rod (72), and the outer wall of the rotating rod (72) is fixedly connected to one end of the stirring rod (73).
7. The rapid mixing device for fracturing fluid at oil production site according to claim 5, characterized in that: The stirring rod (73) is symmetrically mounted on the outer walls of both ends of the rotating rod (72).