Oil well load and displacement wireless integrated sensor

Abstract

The utility model discloses a kind of oil well load and displacement wireless integration sensor, belong to load sensor field, including suspender and load sensor body, the top of the suspender is fixedly connected with two mounting plates, the both sides of load sensor body outside are fixedly connected with slide bar, two slide bars are respectively in the middle portion of two mounting plates and are slidably connected, in the scheme, load sensor body is positioned quickly by the sliding cooperation of slide bar and mounting plate, and rotation handle can complete limit fixing, when disassembling, limit block is separated from limit hole by pulling handle, and it can be removed, without complex tool and professional skill, substantially shorten installation and replacement time, reduce field operation intensity, in addition, the clamping of safety block and handle forms double insurance, even if one spring fails, still can prevent sensor body accidental drop;Steel wire rope and hanging block evenly disperse load, play auxiliary load-bearing role when suspender is under abnormal stress, reduce equipment damage and safety accident risk.

Description

Technical Field

[0001] This utility model relates to the field of load sensors, and more specifically, to a wireless integrated sensor for oil well load and displacement. Background Technology

[0002] In the oil extraction process, monitoring the load and displacement of oil wells is a key link to ensure the normal operation of pumping equipment, improve extraction efficiency, and avoid safety accidents. As an important component of the pumping system, the load changes and vertical displacement of the polished rod directly reflect the downhole working conditions. Therefore, real-time monitoring of the polished rod is particularly important, which is why load sensors are used. Currently, the connection between load sensors and suspension cables is mostly fixed by bolts, which is cumbersome to install and disassemble, requiring professional tools and a lot of manpower. Especially in the case of limited space and complex environment at the oil well site, it is not only time-consuming, but also increases the workload of operators. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a wireless integrated sensor for oil well load and displacement, which enables the rapid assembly and disassembly of the load sensor.

[0005] 2. Technical Solution

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A wireless integrated sensor for oil well load and displacement includes a suspension cable and a load sensor body. Two mounting plates are fixedly connected to the top of the suspension cable. Sliding bars are fixedly connected to both sides of the outside of the load sensor body. The two sliding bars are slidably connected to the middle of the two mounting plates. Limiting holes are opened in the middle of the two sliding bars. Fixing blocks are fixedly connected to the middle of the two mounting plates. Sliding rods are slidably connected inside the two fixing blocks. A limiting block is fixedly connected to one end of the sliding rod inside the fixing block.

[0008] Furthermore, the diameter of the sliding rod is smaller than the diameter of the limiting block, the diameter of the outer wall of the limiting block is equal to the diameter of the inner wall of the fixing block, and the limiting block is engaged inside the limiting hole.

[0009] Furthermore, the diameter of the sliding rod is equal to the diameter of the end of the fixed block, and a first spring is sleeved on the outer wall of the sliding rod, the first spring being located between the limiting block and the fixed block.

[0010] Furthermore, a handle is rotatably connected to one end of the sliding rod located outside the fixed block, and the side of the handle that is in contact with the fixed block has a rounded corner.

[0011] Furthermore, a connecting rod is slidably connected above each of the two mounting plates. A protective block and a safety block are fixedly connected to the upper and lower ends of the connecting rod, respectively. A chamfer is provided on one side of the safety block. A second spring is sleeved on the outside of the connecting rod. The end of the handle is engaged with the safety block.

[0012] Furthermore, a U-shaped groove is provided in the middle of the suspension device and the middle of the load sensor body. A smooth rod is installed inside the U-shaped groove. Steel wire ropes are installed on both sides inside the suspension device. The lower ends of the two steel wire ropes are fixedly connected to a lifting block, which abuts against the bottom of the suspension device.

[0013] Furthermore, a cover plate is installed on one side of the suspension device, and a limit bolt is threadedly connected to the middle of the cover plate. The limit bolt is threadedly connected to the smooth rod, and mounting bolts are threadedly connected to the four corners of the suspension device and the cover plate.

[0014] 3. Beneficial Effects

[0015] Compared with existing technologies, the advantages of this utility model are:

[0016] In this solution, the load sensor body achieves rapid positioning through the sliding engagement of the slider and the mounting plate. The limit fixation can be completed by turning the handle. During disassembly, the limit block can be removed by pulling the handle to disengage it from the limit hole. No complicated tools or professional skills are required, which greatly shortens the installation and replacement time and reduces the intensity of on-site operations. In addition, the locking of the safety block and the handle forms a double safety, which can still prevent the sensor body from falling off accidentally even if the No. 1 spring fails. The wire rope and the lifting block evenly distribute the load and play an auxiliary load-bearing role when the suspension device is under abnormal force, reducing the risk of equipment damage and safety accidents. Attached Figure Description

[0017] Figure 1 This is a first three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0019] Figure 3 This is a schematic diagram showing the connection between the load sensor body and the suspension device in this utility model.

[0020] Figure 4 This is a partial structural schematic diagram of the present invention.

[0021] Figure 5 for Figure 4 A magnified structural diagram of region A in the middle.

[0022] Figure 6This is a schematic diagram showing the connection relationship between the limiting block and the handle in this utility model.

[0023] The following are the labels in the diagram: 1. Suspension rope device; 11. Steel wire rope; 12. Lifting block; 13. U-shaped channel; 14. Cover plate; 15. Smooth rod; 16. Mounting bolt; 17. Limiting bolt; 18. Mounting plate; 19. Load sensor body; 2. Sliding bar; 21. Limiting hole; 22. Fixing block; 23. Sliding rod; 24. Limiting block; 25. Spring No. 1; 26. Handle; 27. Connecting rod; 28. Safety block; 29. ​​Spring No. 2; 3. Protective block. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] Example 1:

[0028] Please see Figures 1-6A wireless integrated sensor for oil well load and displacement includes a suspension cable 1 and a load sensor body 19. Two mounting plates 18 are fixedly connected to the top of the suspension cable 1. Sliding strips 2 are fixedly connected to both sides of the load sensor body 19. The two sliding strips 2 are slidably connected to the middle of the two mounting plates 18, respectively. Limiting holes 21 are formed in the middle of each of the two sliding strips 2. Fixing blocks 22 are fixedly connected to the middle of each of the two mounting plates 18. Sliding rods 23 are slidably connected inside each of the two fixing blocks 22. The sliding rods 23 are located inside the fixing blocks 22. The sliding rod 23 is fixedly connected to a limiting block 24. The diameter of the sliding rod 23 is smaller than the diameter of the limiting block 24. The diameter of the outer wall of the limiting block 24 is equal to the diameter of the inner wall of the fixing block 22. The limiting block 24 is snapped into the inside of the limiting hole 21. The diameter of the sliding rod 23 is equal to the diameter of the end of the fixing block 22. A first spring 25 is sleeved on the outer wall of the sliding rod 23. The first spring 25 is located between the limiting block 24 and the fixing block 22. A handle 26 is rotatably connected to one end of the sliding rod 23 outside the fixing block 22. The side of the handle 26 that is in contact with the fixing block 22 has a rounded corner.

[0029] In this embodiment, through the sliding connection structure between the slide bar 2 and the mounting plate 18, the load sensor body 19 can be quickly positioned along the mounting plate 18. With the snap-fit ​​design of the limiting block 24 and the limiting hole 21, the initial fixation of the sensor can be completed without complicated tools. During installation, the operator aligns the slide bars 2 on both sides of the load sensor body 19 with the corresponding slide grooves on the mounting plate 18. After it is fully inserted, the operator rotates the handle 26. The rounded corner on one side of the handle presses against the outside of the fixing block 22 and drives the sliding rod 23 to slide inside the fixing block 22, pushing the limiting block 24 into the limiting hole 21. The installation process is convenient and efficient. During disassembly, the operator only needs to pull the handle 26 to disengage the limiting block 24 from the limiting hole 21, and the load sensor body 19 can be taken out along the direction of the slide bar 2. This greatly shortens the maintenance and replacement time at the oil well site and reduces labor costs.

[0030] The outer diameter of the limiting block 24 is equal to the inner diameter of the fixing block 22, and it is precisely engaged with the limiting hole 21. Combined with the continuous thrust of the first spring 25 on the limiting block 24, it can effectively prevent the load sensor body 19 from loosening or shifting in the oil well vibration environment. In particular, after installation, the preload provided by the first spring 25 can ensure that the handle 26 will not loosen, further ensuring the stability of the engagement between the limiting block 24 and the limiting hole 21. The diameter of the sliding rod 23 matches the end diameter of the fixing block 22, further ensuring the stable sliding of the sliding rod 23 within the fixing block 22, preventing the sensor's monitoring accuracy from being affected by component shaking.

[0031] The handle 26 is rotatably connected to the sliding rod 23, and the side that fits against the fixing block 22 has a rounded corner. This allows the operator to easily pull or rotate the sliding rod 23 through the handle 26. During installation, the rounded corner is used to press against the fixing block 22 to push the limiting block 24 forward. It also reduces friction wear between the handle 26 and the fixing block 22 during operation. The rounded corner design also prevents clothing or tools from getting caught during operation, improving the safety of on-site operation.

[0032] Example 2:

[0033] Please see Figures 1-6 A wireless integrated sensor for oil well load and displacement is provided. Connecting rods 27 are slidably connected to the top of two mounting plates 18. Protective blocks 3 and safety blocks 28 are fixedly connected to the upper and lower ends of the connecting rods 27, respectively. A chamfer is provided on one side of the safety block 28. A second spring 29 is sleeved on the outside of the connecting rods 27. The end of the handle 26 is engaged with the safety block 28. U-shaped grooves 13 are provided in the middle of the suspension device 1 and the middle of the load sensor body 19. A smooth rod 15 is installed inside the U-shaped groove 13. Steel wire ropes 11 are installed on both sides inside the suspension device 1. Lifting blocks 12 are fixedly connected to the lower ends of the two steel wire ropes 11. The lifting blocks 12 abut against the bottom of the suspension device 1. A cover plate 14 is installed on one side of the suspension device 1. A limit bolt 17 is threadedly connected to the middle of the cover plate 14. The limit bolt 17 is threadedly connected to the smooth rod 15. Mounting bolts 16 are threadedly connected to the four corners of the suspension device 1 and the cover plate 14.

[0034] In this embodiment, the end of the handle 26 is engaged with the safety block 28. Based on the preload of the first spring 25, the safety block 28 forms a double fixation for the handle 26, preventing the limit block 24 from disengaging from the limit hole 21 due to accidental rotation of the handle 26 caused by long-term vibration. The limit bolt 17 in the middle of the cover plate 14 is threadedly connected to the polished rod 15, which can firmly fix the polished rod 15 in the U-shaped groove 13, preventing the polished rod 15 from shifting during operation, ensuring the stability of load transmission, and thus improving the accuracy of sensor monitoring data. The lower ends of the steel wire ropes 11 on both sides inside the suspension device 1 are connected to the lifting blocks 12, which abut against the bottom of the suspension device 1. This structure can evenly distribute the load, ensure the stability of the suspension device 1 under force, and reduce component damage caused by uneven force. The second spring 29 sleeved on the outside of the connecting rod 27, after the safety block 28 is engaged with the handle 26, its elasticity can keep the safety block 28 in close contact with the handle 26, ensuring the stability of the engagement effect and preventing separation due to oil well vibration.

[0035] The handle 26 is rotatably connected to the sliding rod 23, and the side of the handle that is in contact with the fixing block 22 has a rounded corner. This allows the operator to easily pull or rotate the sliding rod 23 through the handle 26. During installation, the rounded corner is used to press the fixing block 22 to push the limiting block 24 forward. It also reduces friction wear between the handle 26 and the fixing block 22 during operation. The rounded corner design also prevents clothing or tools from getting caught during operation, improving the safety of on-site operation. The chamfer on one side of the safety block 28 allows for a smoother engagement when the handle 26 is rotated and the safety block 28 is engaged.

[0036] Working principle: The suspension device 1 is connected to the light rod 15 through the U-shaped groove 13 in the middle of the load sensor body 19. The cover plate 14 is fixed to one side of the suspension device 1 by the mounting bolt 16. The limiting bolt 17 firmly locks the light rod 15 in the U-shaped groove 13, ensuring that the force of the light rod 15 can be stably transmitted to the suspension device 1 and the load sensor body 19. The lower ends of the steel wire ropes 11 on both sides inside the suspension device 1 are connected to the lifting blocks 12. The lifting blocks 12 abut against the bottom of the suspension device 1, which can evenly distribute the load transmitted by the light rod 15 and ensure the overall structure is in force balance.

[0037] When the oil well is working, the polished rod 15 will undergo vertical displacement and load changes due to the oil pumping operation. The load sensor body 19 directly senses the load on the polished rod 15 through contact with it and converts the load signal into an electrical signal. At the same time, the displacement of the polished rod 15 will cause the suspension cable 1 and the load sensor body 19 connected to it to produce corresponding displacements. The displacement monitoring module inside the load sensor body 19 will capture this displacement change and also convert it into an electrical signal.

[0038] At the connection between the load sensor body 19 and the suspension device 1, the sliding fit between the slide bar 2 and the mounting plate 18 ensures the stability of the load sensor body 19 as it moves with the light rod 15. The limiting block 24 is engaged in the limiting hole 21 of the slide bar 2 under the preload of the first spring 25. Combined with the engagement of the handle 26 and the safety block 28, and the elastic force of the second spring 29 on the safety block 28, it ensures that the load sensor body 19 will not loosen or detach in the vibration environment, thus ensuring the continuity and accuracy of the monitoring process. The limiting effect of the protective block 3 on the connecting rod 27 further ensures the stable operation of the safety structure and provides support for the reliable operation of the sensor.

[0039] Finally, the load sensor body 19 transmits the collected load and displacement electrical signals to the receiving terminal through the wireless transmission module, realizing real-time monitoring of the oil well's operating conditions.

[0040] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A wireless integrated sensor for oil well load and displacement, comprising a suspension device (1) and a load sensor body (19), characterized in that: Two mounting plates (18) are fixedly connected to the top of the suspension device (1). Slide bars (2) are fixedly connected to both sides of the load sensor body (19). The two slide bars (2) are slidably connected to the middle of the two mounting plates (18). Limiting holes (21) are opened in the middle of the two slide bars (2). Fixing blocks (22) are fixedly connected to the middle of the two mounting plates (18). Sliding rods (23) are slidably connected inside the two fixing blocks (22). A limiting block (24) is fixedly connected to one end of the sliding rod (23) inside the fixing block (22).

2. The integrated wireless sensor for oil well load and displacement according to claim 1, characterized in that: The diameter of the sliding rod (23) is smaller than the diameter of the limiting block (24). The diameter of the outer wall of the limiting block (24) is equal to the diameter of the inner wall of the fixing block (22). The limiting block (24) is engaged inside the limiting hole (21).

3. The integrated wireless sensor for oil well load and displacement according to claim 1, characterized in that: The diameter of the sliding rod (23) is equal to the diameter of the end of the fixed block (22). A first spring (25) is sleeved on the outer wall of the sliding rod (23). The first spring (25) is located between the limiting block (24) and the fixed block (22).

4. The integrated wireless sensor for oil well load and displacement according to claim 1, characterized in that: The sliding rod (23) is rotatably connected to a handle (26) at one end outside the fixed block (22), and the handle (26) and the fixed block (22) have rounded corners on the side where they fit together.

5. The integrated wireless sensor for oil well load and displacement according to claim 4, characterized in that: A connecting rod (27) is slidably connected above each of the two mounting plates (18). A protective block (3) and a safety block (28) are fixedly connected to the upper and lower ends of the connecting rod (27), respectively. A chamfer is provided on one side of the safety block (28). A second spring (29) is sleeved on the outside of the connecting rod (27). The end of the handle (26) is engaged with the safety block (28).

6. The integrated wireless sensor for oil well load and displacement according to claim 1, characterized in that: The middle part of the suspension device (1) and the middle part of the load sensor body (19) are provided with U-shaped grooves (13). A light rod (15) is installed inside the U-shaped groove (13). Steel wire ropes (11) are installed on both sides inside the suspension device (1). The lower ends of the two steel wire ropes (11) are fixedly connected to the lifting blocks (12). The lifting blocks (12) abut against the bottom of the suspension device (1).

7. The integrated wireless sensor for oil well load and displacement according to claim 6, characterized in that: A cover plate (14) is installed on one side of the suspension device (1). A limit bolt (17) is threadedly connected to the middle of the cover plate (14). The limit bolt (17) and the smooth rod (15) are threadedly connected. Mounting bolts (16) are threadedly connected to the four corners of the suspension device (1) and the cover plate (14).

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