A roof directional drilling hydraulic fracturing regulation device

Abstract

This utility model discloses a hydraulic fracturing control device for directional drilling of the roof, applied in the field of coal mining. It includes a base plate, with a fracturing pump and controller bolted to the top of the base plate. The output end of the fracturing pump is connected to a connecting pipe, and the other end of the connecting pipe is connected to a connector. This utility model achieves easy assembly and disassembly by inserting the fracturing sealing device into the connector, aligning the threaded hole with the screw, and then rotating the rotating cylinder to drive the transmission gear ring to rotate the gear, which in turn drives the screw to rotate, causing the screw to screw into the threaded hole, thus fixing the fracturing sealing device. This method reduces workload, improves work efficiency, and is easy to use. Furthermore, after the fracturing sealing device is connected, rotating the fixing bolt moves the toothed plate, causing it to engage with the fixing gear ring, thus fixing the rotating cylinder and preventing loosening, ensuring the stability of the connection.

Description

Technical Field

[0001] This utility model relates to the field of coal mining, and in particular to a hydraulic fracturing control device for directional drilling of the roof. Background Technology

[0002] In coal mining, roof management is one of the core aspects of ensuring underground operational safety. For hard or thick, difficult-to-collapse roofs, improper handling can easily lead to safety hazards such as large-area roof exposure, rock bursts, and gas accumulation. Therefore, hydraulic fracturing technology is needed to pre-weaken or depressurize the roof. Among these techniques, directional drilling hydraulic fracturing has become a key technology for efficient roof management because it can precisely control the direction of fracture extension (such as directional propagation along the coal seam strike or dip).

[0003] A search of Chinese patents revealed publication number CN223136113U, which discloses a pulse-type hydraulic fracturing device. The device includes a control system, a hydraulic fracturing assembly, and a pulse generation assembly. The control system includes a controller, a sensor group, a flow meter, and a pressure gauge. The flow meter, pressure gauge, pressure sensor, and temperature sensor are connected to the controller to control the hydraulic fracturing assembly and the pulse generation assembly. The hydraulic fracturing assembly includes a one-way valve, a throttle, a connecting pipe, and a plug. The pulse generation assembly includes a pulse generator, a high-pressure hose, and a water tank. This invention is applicable to hydraulic fracturing after drilling in underground coal seams. The improved pressurization device of the hydraulic fracturing assembly transforms the original constant injection pressure pump into a pulse pressure pump capable of setting a pulse mode for water injection. The number of sensors at the injection and pressurization ends is increased to achieve precise control of pulse pressure, pulse frequency, and time, significantly improving the fracturing effect and increasing the permeability of the coal seam.

[0004] Existing control devices are inconvenient for installing and disassembling fracturing borehole sealers. Generally, fracturing borehole sealers are connected to fracturing pumps via pipelines, and the connection between the fracturing borehole sealer and the fracturing pump is usually made using flanges. During installation and disassembly, 6 to 8 bolts need to be installed and removed, which is cumbersome, increases workload, reduces work efficiency, and is inconvenient to use. In order to solve the above problems, we propose a hydraulic fracturing control device for directional drilling of the roof. Utility Model Content

[0005] The purpose of this invention is to provide a hydraulic fracturing control device for directional drilling of the top plate, which has the advantage of being easy to install and remove the fracturing sealing device.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a hydraulic fracturing control device for directional drilling of the top plate, comprising a base plate, a fracturing pump and a controller being bolted to the top of the base plate, a connecting pipe being connected to the output end of the fracturing pump, a connector being connected to the other end of the connecting pipe, a fracturing sealing device being slidably sleeved on the inner wall of the connector, a pressure sensor being installed on the surface of the fracturing sealing device, a fixing ring being fixedly sleeved on the surface of the connector, a rotating cylinder being rotatably sleeved on the surface of the fixing ring, a transmission gear ring being fixedly sleeved on the inner wall of the rotating cylinder, and the transmission gear ring being rotatably connected to the fixing ring, multiple gears meshing on the inner wall of the transmission gear ring, a screw being fixedly sleeved at the axis of the gears, and the screw being rotatably sleeved on the inner wall of the fixing ring, and multiple threaded holes being opened on the surface of the fracturing sealing device, and the threaded holes being threadedly connected to the screw.

[0007] By adopting the above technical solution, the fracturing hole sealer is inserted into the connector and the threaded hole is aligned with the screw. Then, the rotating cylinder is rotated to make the transmission gear ring drive the gear to rotate. The rotation of the gear drives the screw to rotate, so that the screw is screwed into the threaded hole, thus fixing the fracturing hole sealer. This method can achieve the purpose of easy assembly and disassembly, reduce the workload, improve the work efficiency, and facilitate use.

[0008] The present invention is further configured such that: a fixing bolt is threadedly connected to the inner wall of the rotating cylinder, a toothed plate is rotatably connected to the inner end of the fixing bolt, and the toothed plate is slidably connected to the inner wall of the fixing ring; a fixing toothed ring is embedded in the inner wall of the fixing ring, and the fixing toothed ring meshes with the toothed plate.

[0009] By adopting the above technical solution, after the fracturing sealing device is connected, the fixing bolt is rotated to move the toothed plate. The movement of the toothed plate causes it to press and mesh with the fixing toothed ring, thereby fixing the rotating cylinder and preventing it from loosening, thus ensuring the stability of the connection.

[0010] The present invention is further configured such that a sealing gasket is provided between the fracturing sealing device and the inner wall of the connector.

[0011] By adopting the above technical solution, water leakage is prevented by setting a sealing gasket.

[0012] The present invention is further provided that the surface of the rotating cylinder is provided with anti-slip texture.

[0013] By adopting the above technical solution, anti-slip texture is set to prevent hand slippage and facilitate operation.

[0014] The present invention is further configured such that a nut is threaded onto the surface of the fixing bolt.

[0015] By using the above technical solution, nuts are used to secure the fixing bolts and prevent them from loosening.

[0016] The present invention is further configured such that: a slider is bolted to the surface of the toothed plate, and a groove is slidably connected to the surface of the slider, and the groove is formed on the inner wall of the rotating cylinder.

[0017] By adopting the above technical solution, and by setting sliders and grooves, the toothed plate is prevented from shifting, thus ensuring stability.

[0018] The present invention is further configured such that wheels are bolted to the bottom of the base plate.

[0019] The above technical solution, by incorporating wheels, facilitates movement.

[0020] The present invention is further configured such that a push handle is bolted to the top of the base plate.

[0021] The above technical solution, by setting up a push plate, facilitates movement.

[0022] In summary, this utility model has the following beneficial effects: 1. This utility model achieves the purpose of easy assembly and disassembly, reduces workload, improves work efficiency, and is easy to use by inserting the fracturing hole sealer into the connector and aligning the threaded hole with the screw, then rotating the rotating cylinder to drive the transmission gear ring to rotate the gear, which in turn drives the screw to rotate, so that the screw is screwed into the threaded hole. 2. In this utility model, after the fracturing and sealing device is connected, the fixing bolt is rotated to move the toothed plate. The movement of the toothed plate causes it to press and mesh with the fixing toothed ring, thereby fixing the rotating cylinder and preventing it from loosening, thus ensuring the stability of the connection. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural view of the present invention; Figure 2 This is a partial structural cross-sectional view of the present invention; Figure 3 This is a partial structural side sectional view of the present invention; Figure 4 This is a partial structural side sectional view of the present invention; Figure 5 This is a utility model Figure 4 Enlarged view of the structure at point A in the middle.

[0024] Reference numerals: 1. Base plate; 2. Fracturing pump; 3. Controller; 4. Connecting pipe; 5. Connector; 6. Fracturing sealing device; 7. Pressure sensor; 8. Fixing ring; 9. Rotating cylinder; 10. Transmission gear ring; 11. Gear; 12. Screw; 13. Threaded hole; 14. Fixing bolt; 15. Gear plate; 16. Fixing gear ring; 17. Sealing gasket; 18. Anti-slip texture; 19. Nut; 20. Slider; 21. Slide groove; 22. Wheel; 23. Push handle. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings. Example

[0026] refer to Figure 1 , Figure 2 and Figure 3 A hydraulic fracturing control device for directional drilling of the roof includes a base plate 1. A fracturing pump 2 and a controller 3 are bolted to the top of the base plate 1. The output end of the fracturing pump 2 is connected to a connecting pipe 4, and the other end of the connecting pipe 4 is connected to a connector 5. A fracturing sealer 6 is slidably sleeved on the inner wall of the connector 5. A pressure sensor 7 is installed on the surface of the fracturing sealer 6. A fixing ring 8 is fixedly sleeved on the surface of the connector 5. A rotating cylinder 9 is rotatably sleeved on the surface of the fixing ring 8. A transmission gear ring 10 is fixedly sleeved on the inner wall of the rotating cylinder 9, and the transmission gear ring 10 is rotatably connected to the fixing ring 8. Multiple gears 1 mesh on the inner wall of the transmission gear ring 10. 1. A screw 12 is fixedly sleeved at the shaft of gear 11, and the screw 12 is rotatably sleeved with the inner wall of the fixing ring 8. The surface of the fracturing sealing device 6 is provided with multiple threaded holes 13, and the threaded holes 13 are threadedly connected to the screw 12. By inserting the fracturing sealing device 6 into the connector 5 and aligning the threaded holes 13 with the screw 12, and then rotating the rotating cylinder 9 to drive the transmission gear ring 10 to rotate the gear 11, the rotation of the gear 11 drives the screw 12 to rotate, so that the screw 12 is screwed into the threaded holes 13, thus fixing the fracturing sealing device 6. This method can achieve the purpose of easy assembly and disassembly, reduce the workload, improve the work efficiency, and facilitate use.

[0027] refer to Figure 2 A sealing gasket 17 is provided between the fracturing sealer 6 and the inner wall of the connector 5 to prevent water leakage.

[0028] refer to Figure 3 The surface of the rotating cylinder 9 is provided with anti-slip texture 18. By setting the anti-slip texture 18, the hand slips and the operation is facilitated.

[0029] refer to Figure 1 The bottom of the base plate 1 is bolted with wheels 22, which facilitates movement.

[0030] refer to Figure 1 The top of the base plate 1 is bolted with a push handle 23, which facilitates movement by setting a push plate. Example

[0031] refer to Figure 2 , Figure 4 and Figure 5The inner wall of the rotating cylinder 9 is threaded with a fixing bolt 14. The inner end of the fixing bolt 14 is rotatably connected with a toothed plate 15, and the toothed plate 15 is slidably connected to the inner wall of the fixing ring 8. The inner wall of the fixing ring 8 is embedded with a fixing toothed ring 16, and the fixing toothed ring 16 meshes with the toothed plate 15. After the fracturing and sealing device 6 is connected, the fixing bolt 14 is rotated to move the toothed plate 15. The movement of the toothed plate 15 causes the toothed plate 15 to press and mesh with the fixing toothed ring 16, thereby fixing the rotating cylinder 9, preventing the rotating cylinder 9 from loosening, and ensuring the stability of the connection.

[0032] refer to Figure 5 The surface of the fixing bolt 14 is threaded with a nut 19. By setting the nut 19, the fixing bolt 14 is fixed and prevented from loosening.

[0033] refer to Figure 5 The toothed plate 15 is bolted to a slider 20, and the slider 20 is slidably connected to a groove 21. The groove 21 is opened on the inner wall of the rotating cylinder 9. By setting the slider 20 and the groove 21, the toothed plate 15 is prevented from shifting and stability is ensured.

[0034] Brief description of the operation: Using a directional drill, a hole is drilled in the rock strata of the roof. A rock pressure sensor is installed in the rock strata to collect real-time pressure data. The fracturing hole sealer 6 is placed at the location where fracturing is needed and the hole is sealed. Then, the pressure pump is turned on to perform fracturing. Based on the preset fracturing curve, the control system adjusts the output pressure of the fracturing pump 2. The output pressure of the pressure pump is monitored by the pressure sensor 7. When the pressure is lower than the threshold, the power of the fracturing pump 2 is increased to raise the pressure and break through the rock strata fracture pressure to create a fracture. When the pressure is too high, the pressure is reduced by the pressure relief valve on the fracturing hole sealer 6 to prevent excessive rock strata fracturing, thereby achieving the purpose of adjusting the hole. Insert the fracturing sealer 6 into the connector 5 and align the threaded hole 13 with the screw 12. Then, rotate the rotating cylinder 9 to drive the transmission gear ring 10 to rotate the gear 11. The rotation of the gear 11 drives the screw 12 to rotate, so that the screw 12 is screwed into the threaded hole 13, thus fixing the fracturing sealer 6. When disassembling, rotate the rotating cylinder 9 in the opposite direction to unscrew the screw 12 out of the threaded hole 13 and disassemble it, thereby facilitating assembly and disassembly. After the fracturing sealer 6 is connected, rotate the fixing bolt 14 to move the toothed plate 15. The movement of the toothed plate 15 causes the toothed plate 15 to press and mesh with the fixing gear ring 16, fixing the rotating cylinder 9 to prevent it from loosening and ensuring the stability of the connection.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A hydraulic fracturing control device for directional drilling of the top plate, comprising a base plate (1), characterized in that, The top of the base plate (1) is bolted to a fracturing pump (2) and a controller (3). The output end of the fracturing pump (2) is connected to a connecting pipe (4), and the other end of the connecting pipe (4) is connected to a connector (5). A fracturing sealer (6) is slidably sleeved on the inner wall of the connector (5). A pressure sensor (7) is installed on the surface of the fracturing sealer (6). A fixing ring (8) is fixedly sleeved on the surface of the connector (5), and a rotating cylinder is rotatably sleeved on the surface of the fixing ring (8). 9) A transmission gear ring (10) is fixedly sleeved on the inner wall of the rotating cylinder (9), and the transmission gear ring (10) is rotatably connected to the fixed ring (8). Multiple gears (11) mesh on the inner wall of the transmission gear ring (10). A screw (12) is fixedly sleeved at the axis of the gear (11), and the screw (12) is rotatably sleeved to the inner wall of the fixed ring (8). Multiple threaded holes (13) are opened on the surface of the fracturing sealing device (6), and the threaded holes (13) are threadedly connected to the screw (12).

2. The hydraulic fracturing control device for directional drilling of the top plate according to claim 1, characterized in that, The inner wall of the rotating cylinder (9) is threaded with a fixing bolt (14), and the inner end of the fixing bolt (14) is rotatably connected with a toothed plate (15). The toothed plate (15) is slidably connected to the inner wall of the fixing ring (8). The inner wall of the fixing ring (8) is embedded with a fixing toothed ring (16), and the fixing toothed ring (16) meshes with the toothed plate (15).

3. The hydraulic fracturing control device for directional drilling of the top plate according to claim 1, characterized in that, A sealing gasket (17) is provided between the inner wall of the fracturing sealer (6) and the connector (5).

4. The hydraulic fracturing control device for directional drilling of the top plate according to claim 1, characterized in that, The surface of the rotating cylinder (9) is provided with anti-slip texture (18).

5. A hydraulic fracturing control device for directional drilling of the top plate according to claim 2, characterized in that, The surface of the fixing bolt (14) is threaded with a nut (19).

6. A hydraulic fracturing control device for directional drilling of the top plate according to claim 2, characterized in that, The surface of the toothed plate (15) is bolted to a slider (20), and the surface of the slider (20) is slidably connected to a groove (21), which is opened on the inner wall of the rotating cylinder (9).

7. The hydraulic fracturing control device for directional drilling of the top plate according to claim 1, characterized in that, The bottom of the base plate (1) is bolted with wheels (22).

8. A hydraulic fracturing control device for directional drilling of the top plate according to claim 1, characterized in that, The top of the base plate (1) is bolted with a push handle (23).

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