Device for monitoring working fluid level of oil well in real time

Abstract

The invention relates to the technical field of high-end intelligent equipment, and discloses a device for monitoring the working fluid level of an oil well in real time, the device comprises a sleeve installed in the oil well, an echo mark is arranged between the oil well and the sleeve, a moving assembly is arranged between the echo mark and the oil well, and the moving assembly comprises a track and a moving block installed in the track in a sliding mode. The echo mark is fixedly mounted on one side of the moving block; the shifting plate is used for cleaning oil at an oil wellhead, and the shifting plate can be driven to swing through the driving assembly whenever the moving block drives the echo mark to move; the device further comprises a piston ring arranged in the sleeve, and mud deposits generated by the sleeve are scraped in the swinging process of the shifting plate. The height of the echo mark can be adjusted, the accuracy of the descending depth of the echo mark is improved, so that the accuracy of working fluid level calculation is guaranteed, the depth measurement deviation of the working fluid level is reduced, overflowing oil liquid is stirred into the groove through the stirring plate to be collected and treated, and the situation that the underground water quality is possibly damaged and ecological risks are caused by direct reinjection of the oil liquid is avoided.

Description

Technical Field

[0001] This invention relates to the field of high-end intelligent equipment technology, specifically to a device for real-time monitoring of the dynamic fluid level in oil wells. Background Technology

[0002] The dynamic fluid level is the fluid level in the annular space between the tubing and casing during normal production in an oil well. Its location can be represented by the depth measured from the wellhead or the height measured from the center of the oil layer. Maximizing production and overall efficiency is the ultimate goal in oil well production, and the formation's fluid supply capacity is the fundamental factor limiting its achievement. The dynamic fluid level of an oil well is an important indicator reflecting the formation's fluid supply capacity and a crucial basis for determining reasonable submergence and establishing appropriate operating procedures. Analysis of the dynamic fluid level helps determine pump depth and calculate bottom hole flowing pressure; changes in the dynamic fluid level also help assess the compatibility between the oil well's operating procedures and formation energy.

[0003] A device for real-time monitoring of dynamic fluid levels in oil wells, disclosed in publication number "CN117418827A," relates to the field of high-end intelligent equipment manufacturing. The device includes: a nitrogen unit for receiving a first control signal from a control unit, separating nitrogen from the air to obtain compressed nitrogen at a preset nitrogen pressure based on the first control signal, and transmitting the compressed nitrogen to a sensor unit; the sensor unit for receiving a second control signal from the control unit, transmitting the compressed nitrogen to the wellhead to form a compressed pulse sound wave based on the second control signal, propagating the compressed pulse sound wave into the oil well, receiving reflected sound wave signals, and detecting the oil well pressure value, transmitting the reflected sound wave signal and the oil well pressure value to the control unit; and the control unit for generating the first control signal and the second control signal based on the oil well pressure value and the preset nitrogen pressure, respectively, and detecting the depth of the fluid level in the oil well based on the reflected sound wave signal. This invention can monitor the depth of the fluid level in oil and gas wells in real time. Another patent, CN1445434A, discloses an automatic electroacoustic identification device and method for oil pumping units. This method involves installing an acoustic signal transmitter and receiver at the wellhead, placing a phonetic symbol at a specific location within the wellbore, and automatically identifying the position of the oil level using echo sampling signals. The echo sampling signals include the phonetic symbol echo signal and the wellbore fluid surface echo signal. This device offers advantages such as real-time automatic and convenient testing of fluid level positions, and accurate distance measurement under various oil well conditions with different oil qualities and pressures. However, the existing technology still has the following drawbacks: When echo markers are placed in oil wells, they are mostly fixed. If the echo markers are placed too deep or too shallow, they may not be able to accurately capture the reflected signal from the fluid surface, resulting in a large deviation in the dynamic fluid surface depth measurement. In addition, during the oil pumping process, there may be situations such as pressure imbalance in the well and insufficient drilling fluid density, which may cause overflow, resulting in oil spilling out of the wellhead. The oil may also be directly reinjected, thereby damaging the groundwater quality. Summary of the Invention

[0004] This invention provides a device for real-time monitoring of the dynamic fluid level in oil wells, which solves the problems mentioned in the background art. When echo markers are placed in oil wells, they are mostly fixed. If the echo markers are placed too deep or too shallow, they may not be able to accurately capture the fluid surface reflection signal. During the oil pumping process, there are situations such as pressure imbalance in the well and insufficient drilling fluid density, which can cause overflow and oil to spill out of the wellhead.

[0005] This invention provides the following technical solution: A device for real-time monitoring of dynamic fluid level in an oil well includes a casing installed in the oil well, an echo beacon placed between the oil well and the casing, and a moving component placed between the echo beacon and the oil well. The moving component includes a track and a moving block slidably installed in the track, and the echo beacon is fixedly installed on one side of the moving block. It also includes a lever for cleaning oil from the wellhead; whenever the moving block moves the echo beacon, the lever can be swung by the drive assembly. It also includes piston rings installed inside the casing, which scrape away the mud accumulated in the casing during the swing of the paddle.

[0006] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, wherein: a chute is provided in the track, the moving block and the chute are slidably connected, the moving block is configured as a T-shaped block, and the chute is configured as a T-shaped groove that matches the moving block.

[0007] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, two sets of motors are symmetrically arranged at the wellhead, and a traction rope is connected to the moving block. The end of the traction rope away from the motor is fixedly connected to the output shaft end of the motor.

[0008] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, wherein: positioning seats are symmetrically arranged at the wellhead, and pulleys are rotatably connected inside the positioning seats; the traction rope is driven in contact with the surface of the pulleys; and the traction rope passes through the positioning seats and the track and moving block in sequence.

[0009] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, the bottom of the moving block is connected to a first spring, one end of the first spring is fixedly installed at the bottom of the track, the bottom end of the first spring is connected to a suspension rope, one end of the suspension rope passes through the bottom of the track and extends to the outside of the track, and the end of the suspension rope located outside the track is fixedly connected to a float, the float floating on the dynamic fluid surface.

[0010] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, the inner wall of the oil well is provided with two sets of bearing seats, a rotating shaft is rotatably installed between the two sets of bearing seats, a dial plate is fixedly installed on the top of the rotating shaft, and the dial plate is attached to the upper surface of the oil wellhead.

[0011] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, the drive assembly includes a second bevel gear installed at the bottom of the rotating shaft, a support shaft connected to one side of two sets of tracks, spur gears symmetrically arranged on the surface of the support shaft, and first bevel gears arranged on the surface of the support shaft on the side of the spur gears, and the first bevel gears and the second bevel gears are connected in a transmission manner.

[0012] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, a support rod is connected between the two movable blocks on both sides, a rack is fixedly connected to the support rod, the support rod is configured as a spline shaft structure, a guide groove is opened on one side of the track, and the two ends of the support rod are slidably connected to the guide groove.

[0013] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, wherein: a fixed plate is arranged in an annular equidistant array at the top of the casing, a second spring is connected between the fixed plate and the piston ring, a guide rod is provided between two adjacent sets of the second spring, the top end of the guide rod is slidably connected to the lower surface of the fixed plate, the bottom end of the guide rod is connected to the piston ring, and a shovel plate is arranged in an annular equidistant array on the bottom surface of the piston ring, the shovel plate being fitted against the inner wall of the casing.

[0014] As an optional embodiment of the device for real-time monitoring of dynamic fluid level in oil wells according to the present invention, the wellhead is provided with a guide plate, the cross section of the guide plate is provided with a slope, the middle of the guide plate is the low point of the slope, the two ends of the guide plate are the high points of the slope, and a pressure plate is connected to the guide plate, the bottom surface of the pressure plate and the upper surface of the guide plate are fitted together. The top of the adjacent guide rod is connected to a connecting piece, which is fixedly connected to the guide plate by a connecting bracket. Two sets of guide shafts are provided at the bottom of the guide plate, and a third spring is sleeved on the guide shaft. The third spring is connected between the guide plate and the wellhead.

[0015] The present invention has the following beneficial effects: 1. This device for real-time monitoring of dynamic fluid level in oil wells uses a track and a moving block to install an echo beacon on one side of the moving block, allowing the height of the echo beacon to be adjusted, improving the accuracy of the echo beacon's insertion depth, thereby ensuring the accuracy of dynamic fluid level calculation and reducing the deviation in dynamic fluid level depth measurement. 2. The device for real-time monitoring of the dynamic fluid level in an oil well utilizes a first spring to connect a suspension rope, with a float connected to the bottom of the suspension rope. The float floats on the surface of the dynamic fluid level, and the float drives a camera to assist in monitoring changes in the dynamic fluid level. 3. This device for real-time monitoring of the dynamic fluid level in oil wells uses a lever installed at the wellhead. The height of the moving block, adjusted by the height of the echo beacon, causes the lever to swing around a rotating shaft via a transmission structure. Considering that during oil extraction, there may be situations such as pressure imbalance in the well or insufficient drilling fluid density, resulting in overflow and oil spilling from the wellhead, a trench can be dug at the wellhead. The lever can then be used to guide the overflowing oil into the trench for collection and treatment, avoiding the potential damage to groundwater quality and ecological risks caused by direct reinjection of the oil. 4. This device for real-time monitoring of the dynamic fluid level in an oil well has a piston ring installed inside the casing. Several sets of shovels are arranged in an equidistant array at the bottom of the piston ring. By swinging the shovels, the guide plate is driven to rise and fall. The rise and fall of the guide plate then drives the piston ring and the shovels at the bottom of the piston ring to rise and fall inside the casing. This can clear the mud buildup inside the casing and thus unclog the casing, thereby ensuring a stable dynamic fluid level. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the oil wellhead from the main view of the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of the oil well and casing of the present invention.

[0018] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0019] Figure 4 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B.

[0020] Figure 5 This is a front-view stereoscopic structural diagram of the driving component of the present invention.

[0021] Figure 6 This is a three-dimensional structural diagram of the driving component of the present invention from a flipping view.

[0022] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point C.

[0023] Figure 8 This is a schematic diagram of the piston structure inside the sleeve of the present invention.

[0024] Figure 9 For the present invention Figure 8 Enlarged schematic diagram of the structure at point D.

[0025] In the diagram: 1. Shovel plate; 2. Sleeve; 3. Track; 4. Slide groove; 5. Moving block; 6. Paddle plate; 7. Traction rope; 8. First spring; 9. Echo mark; 10. Positioning seat; 11. Motor; 12. Pulley; 13. Lifting rope; 14. Float; 15. Rotating shaft; 16. Support rod; 17. Rack; 18. Support shaft; 19. Spur gear; 20. First bevel gear; 21. Second bevel gear; 22. Bearing seat plate; 23. Guide groove; 24. Guide plate; 25. Piston ring; 26. Fixing plate; 27. Second spring; 28. Connecting piece; 29. ​​Guide rod; 30. Connecting bracket; 31. Pressure plate; 32. Third spring; 33. Guide shaft. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1, please refer to Figures 1 to 9 The present invention discloses a device for real-time monitoring of dynamic fluid level in oil wells, including a casing 2 installed in the oil well, an echo mark 9 between the oil well and the casing 2, and a moving component between the echo mark 9 and the oil well. The moving component includes a track 3 and a moving block 5 slidably installed in the track 3. The echo mark 9 is fixedly installed on one side of the moving block 5.

[0028] In this embodiment, an echo marker 9 is installed in the oil well. The echo marker 9 obstructs the straight-line propagation of sound in the oil well, causing the sound waves to be reflected back to the wellhead for accurate measurement of the dynamic fluid level depth. At the same time, a track 3 and a moving block 5 are provided. The echo marker 9 is installed on one side of the moving block 5, so that the height of the echo marker 9 can be adjusted, improving the accuracy of the depth of the echo marker 9, thereby ensuring the accuracy of the dynamic fluid level calculation and reducing the deviation of the dynamic fluid level depth measurement.

[0029] A slide groove 4 is provided inside the track 3. The moving block 5 and the slide groove 4 are slidably connected. The moving block 5 is set as a T-shaped block, and the slide groove 4 is set as a T-shaped groove that matches the moving block 5.

[0030] Specifically, a chute 4 is provided in the track 3, and the moving block 5 is set as a T-shaped groove. It can not only slide in the chute 4, but also ensure that the moving block 5 drives the echo mark 9 to rise and fall vertically in the track 3, thereby changing the height of the echo mark 9.

[0031] Two sets of motors 11 are symmetrically arranged at the wellhead. A traction rope 7 is connected to the moving block 5. The end of the traction rope 7 away from the motor 11 is fixedly connected to the output shaft end of the motor 11. A first spring 8 is connected to the bottom of the moving block 5. One end of the first spring 8 is fixedly set at the bottom of the inner track 3. A lifting rope 13 is connected to the bottom end of the first spring 8. One end of the lifting rope 13 passes through the bottom of the track 3 and extends to the outside of the track 3.

[0032] Specifically, two sets of motors 11 are set up, and the motors 11 and the moving block 5 are connected by a traction rope 7. When the motor 11 is started, the motor 11 rotates forward and winds up the traction rope 7, which drives the moving block 5 and the echo mark 9 on one side of the moving block 5 to rise. At this time, the first spring 8 is stretched, and the motor 11 reverses. Under the restoring force of the first spring 8, the moving block 5 and the echo mark 9 on one side of the moving block 5 can be driven to fall.

[0033] A positioning seat 10 is symmetrically arranged at the wellhead. A pulley 12 is rotatably connected inside the positioning seat 10. The traction rope 7 is attached to the surface of the pulley 12 and is driven by the traction rope 7. The traction rope 7 passes through the positioning seat 10 and the track 3 and the moving block 5 in sequence.

[0034] To prevent wear between the traction rope 7 and the wellhead during the lifting and lowering of the moving block 5 and the echo beacon 9, a positioning seat 10 and a pulley 12 are provided at the wellhead. The traction rope 7 is wrapped around the surface of the pulley 12, and the pulley 12 is designed to rotate to minimize the resistance when the traction rope 7 is in action.

[0035] A float 14 is fixedly connected to one end of the suspension rope 13 outside the track 3. The float 14 floats on the surface of the moving liquid and is equipped with a camera.

[0036] In this embodiment, a first spring 8 is used to connect a suspension rope 13, and a float 14 is connected to the bottom end of the suspension rope 13. The float 14 floats on the surface of the moving liquid, and the float 14 is used to drive the camera to assist in monitoring the changes of the moving liquid surface.

[0037] Example 2 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 9 It also includes a lever 6 for cleaning oil at the wellhead. Whenever the moving block 5 moves the echo 9, the lever 6 can be driven to swing by the drive assembly. Two sets of bearing seats 22 are provided on the inner wall of the oil well. A rotating shaft 15 is rotatably installed between the two sets of bearing seats 22. The lever 6 is fixedly installed on the top of the rotating shaft 15 and is attached to the upper surface of the wellhead.

[0038] In this embodiment, a lever 6 is installed at the wellhead, and two sets of bearing seats 22 are installed on the well wall. A rotating shaft 15 is rotatably installed inside the bearing seat 22. The top end of the rotating shaft 15 is fixedly connected to the lever 6, so that the lever 6 can swing around the rotating shaft 15. Considering that during the oil pumping process, there may be situations such as pressure imbalance in the well and insufficient drilling fluid density, which may cause overflow and oil to overflow from the wellhead, in specific operations, a trench can be dug at the wellhead, and the lever 6 can be used to push the overflowing oil into the trench for collection and treatment, avoiding the possibility that direct reinjection of oil may damage the groundwater quality and cause ecological risks.

[0039] The drive assembly includes a support rod 16 connected between two movable blocks 5 on both sides. A rack 17 is fixedly connected to the support rod 16. The support rod 16 is configured as a spline shaft structure. A guide groove 23 is opened on one side of the track 3. The two ends of the support rod 16 are slidably connected to the guide groove 23. The drive assembly also includes a second bevel gear 21 installed at the bottom of the rotating shaft 15. A support shaft 18 is connected to one side of the two sets of tracks 3. Spur gears 19 are symmetrically arranged on the surface of the support shaft 18. A first bevel gear 20 is arranged on the surface of the support shaft 18 on one side of the spur gear 19. The first bevel gear 20 and the second bevel gear 21 are connected in a transmission manner.

[0040] Specifically, during the adjustment of the position of echo mark 9, the lifting and lowering of the moving block 5 can drive the support rod 16 between the two sets of moving blocks 5 and the rack 17 on the surface of the support rod 16 to rise and fall. A spur gear 19 is meshed on one side of the rack 17. The spur gear 19 is fixed on the support shaft 18. A first bevel gear 20 is also fixed on the support shaft 18. A second bevel gear 21 is provided at the bottom of the rotating shaft 15. The first bevel gear 20 and the second bevel gear 21 mesh. Therefore, the lifting and lowering of the moving block 5 can drive the dial plate 6 to swing around the rotating shaft 15 at a certain angle, thereby achieving the above effect.

[0041] It should be noted that the overflowing oil is not continuously generated and needs to be dealt with in a timely manner. Therefore, it only needs to be dealt with during the oil extraction process. Thus, the process of adjusting the height of the echo mark 9 to drive the dial plate 6 to push the oil will not delay the treatment of the overflowing oil.

[0042] Example 3 is an explanation based on Example 1. For details, please refer to [link / reference]. Figures 1 to 9 It also includes piston rings 25 disposed inside the sleeve 2, and scrapes away the mud accumulated in the sleeve 2 during the swinging of the paddle plate 6. The top of the sleeve 2 has fixed plates 26 arranged in an annular equidistant array, and a second spring 27 is connected between the fixed plates 26 and the piston rings 25. A guide rod 29 is disposed between two adjacent sets of second springs 27. The top end of the guide rod 29 is slidably connected to the lower surface of the fixed plates 26, and the bottom end of the guide rod 29 is connected to the piston rings 25. The bottom surface of the piston rings 25 has scraper plates 1 arranged in an annular equidistant array, and the scraper plates 1 are fitted against the inner wall of the sleeve 2.

[0043] Considering that the mud accumulation inside the casing 2 is a factor causing the dynamic fluid level of the pumping well to rise, in this embodiment, a piston ring 25 is provided inside the casing 2. The bottom of the piston ring 25 has several sets of shovels 1 arranged in an annular equidistant array. The piston ring 25 moves up and down inside the casing 2, which can guide the mud accumulation generated inside the casing 2, thereby clearing the casing 2 and ensuring the stability of the dynamic fluid level.

[0044] The wellhead is equipped with a guide plate 24, the cross-section of which is sloped, with the middle of the guide plate 24 being the low point of the slope and both ends being the high points of the slope. A pressure plate 31 is connected to the lever plate 6, and the bottom surface of the pressure plate 31 is fitted to the upper surface of the guide plate 24. The top of the adjacent guide rod 29 is connected to a connecting piece 28, which is fixedly connected to the guide plate 24 through a connecting bracket 30. Two sets of guide shafts 33 are provided at the bottom of the guide plate 24, and a third spring 32 is sleeved on the guide shafts 33. The third spring 32 is connected between the guide plate 24 and the wellhead.

[0045] Specifically, a pressure plate 31 is provided on the lever 6, and a guide plate 24 with elastic connection is provided at the wellhead. The pressure plate 31 is attached to the guide plate 24. During the swinging process of the lever 6, the pressure plate 31 is driven to swing. The pressure plate 31 moves along the slope of the guide plate 24. Since the swinging plane of the pressure plate 31 remains unchanged, the guide plate 24 is connected to the connecting piece 28 through the connecting bracket 30. The connecting piece 28 is connected to the guide rod 29. The piston ring 25 is elastically and slidably connected to the casing 2 through the guide rod 29 and the second spring 27. Therefore, when the pressure plate 31 moves to the high point of the guide plate 24, it can drive the guide plate 24 to fall, thereby driving the piston ring 25 and the fixing plate 26 to fall along the casing 2. When the lever 6 swings in the opposite direction, the pressure plate 31 moves to the low point of the guide plate 24, the guide plate 24 rises and resets. At the same time, under the reset action of the second spring 27, the piston ring 25 and the shovel plate 1 are lifted. The falling and rising action of the piston ring 25 and the shovel plate 1 can play the role of clearing the casing 2.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, goods, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, goods, or apparatus.

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A device for monitoring the liquid level of an oil well in real time, comprising a casing (2) installed in the oil well, an echo marker (9) being arranged between the oil well and the casing (2), characterized in that: The echo mark (9) and oil well are provided with a moving assembly, the moving assembly comprises a track (3) and a moving block (5) slidably installed in the track (3), and the echo mark (9) is fixedly installed on one side of the moving block (5); Further comprising a paddle (6) for cleaning the oil well mouth, and the paddle (6) is swung by the driving assembly during the movement of the moving block (5) and the echo mark (9); Further comprising a piston ring (25) arranged in the sleeve (2), and the paddle (6) is swung to scrape the mud accumulated on the sleeve (2).

2. The device for real-time monitoring of the liquid level in an oil well according to claim 1, characterized in that: The track (3) is provided with a sliding groove (4), the moving block (5) and the sliding groove (4) are slidably connected, the moving block (5) is arranged as a T-shaped block, and the sliding groove (4) is arranged as a T-shaped groove matched with the moving block (5).

3. The apparatus for monitoring the liquid level of an oil well in real time according to any one of claims 1 or 2, characterized in that: The oil well mouth is symmetrically provided with two groups of motors (11), the moving block (5) is connected with a traction rope (7), and the traction rope (7) is fixedly connected with the output shaft end of the motor (11) away from the motor (11).

4. The device for real-time monitoring of the liquid level in an oil well according to claim 3, characterized in that: The oil well mouth is symmetrically provided with a positioning seat (10), the positioning seat (10) is rotatably connected with a pulley (12), the traction rope (7) is in surface transmission with the pulley (12), and the traction rope (7) penetrates the positioning seat (10), the track (3) and the moving block (5) in sequence.

5. A device for real-time monitoring of the liquid level in an oil well according to claim 4, characterized in that: The moving block (5) is connected with a first spring (8), one end of the first spring (8) is fixedly arranged in the bottom of the track (3), the bottom end of the first spring (8) is connected with a lifting rope (13), one end of the lifting rope (13) penetrates the bottom of the track (3) and extends to the outside of the track (3), one end of the lifting rope (13) located outside the track (3) is fixedly connected with a float (14), and the float (14) floats on the liquid level.

6. The device for real-time monitoring of the liquid level in an oil well according to claim 1, characterized in that: The inner wall of the oil well is provided with two groups of bearing seat plates (22), the two groups of bearing seat plates (22) are rotatably installed with a rotating shaft (15) therebetween, the paddle (6) is fixedly installed at the top end of the rotating shaft (15), and the paddle (6) is arranged on the upper surface of the oil well mouth.

7. A device for real-time monitoring of the liquid level in an oil well according to claim 6, characterized in that: The driving assembly comprises a second bevel gear (21) installed at the bottom end of the rotating shaft (15), two groups of tracks (3) are connected with a support shaft (18) on one side, the support shaft (18) is symmetrically provided with a spur gear (19) on the surface, the support shaft (18) is provided with a first bevel gear (20) on the surface on one side of the spur gear (19), and the first bevel gear (20) and the second bevel gear (21) are in transmission connection.

8. The device for real-time monitoring of the liquid level in an oil well according to claim 7, characterized in that: The moving blocks (5) on both sides are connected with a support rod (16), the support rod (16) is fixedly connected with a rack (17), the support rod (16) is arranged as a spline shaft structure, one side of the track (3) is provided with a guide groove (23), and the two ends of the support rod (16) are slidably connected with the guide groove (23).

9. The device for real-time monitoring of the liquid level in an oil well according to claim 1, characterized in that: The sleeve (2) top annular equidistant array has a fixed plate (26), the fixed plate (26) and the piston ring (25) are connected with the second spring (27), the adjacent two groups of the second spring (27) are provided with the guide rod (29), the guide rod (29) top end slidingly connected to the fixed plate (26) lower surface, the guide rod (29) bottom end is connected to the piston ring (25), the piston ring (25) bottom annular equidistant array has a shovel plate (1), the shovel plate (1) is set with the sleeve (2) inner wall.

10. The apparatus of claim 9, wherein: The oil well head is provided with a guide plate (24), the cross section of the guide plate (24) is provided with a slope, the middle of the guide plate (24) is a low point of the slope, the two ends of the guide plate (24) are high points of the slope, the pressing plate (31) is connected on the pressing plate (6), the bottom surface of the pressing plate (31) and the upper surface of the guide plate (24) are set with the guide plate (24). The adjacent guide rod (29) top end is connected with the connecting sheet (28), the connecting sheet (28) is fixedly connected with the connecting support (30) and the guide plate (24), the guide plate (24) bottom is provided with two groups of guide shafts (33), the guide shaft (33) is provided with the third spring (32), the third spring (32) is connected between the guide plate (24) and the oil well head.

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