Shale oil wellhead displacement monitoring automatic early warning device

Abstract

The utility model discloses shale oil well mouth displacement monitoring automatic early warning device, including base, measurement subassembly, the measurement subassembly includes measurement part, fixed part, the measurement part includes telescopic link group, telescopic link group's telescopic link lower extreme and base universal movable joint, telescopic link group's telescopic outer cover upper end connects measurement instrument, telescopic outer cover connects fixed part, angle sensor, distance sensor are provided in the measurement instrument, the probe of distance sensor sets up in telescopic outer cover, and is located above telescopic link, the distance of distance sensor measurement probe and telescopic link. The utility model has no influence of elastic deformation of connecting component, and the monitoring precision is high.

Description

Technical Field

[0001] This utility model relates to the field of well tool technology, specifically to an automatic early warning device for shale oil wellhead displacement monitoring. Background Technology

[0002] During shale oil trial production and production, high axial thermal stress is generated due to casing thermal expansion. The expansion of the annular fluid volume causes high pressure in the sealed space, leading to internal pressure / external extrusion failure. Increased axial pressure causes the wellhead to be pushed upwards. Once the wellhead equipment deforms (lifts or tilts), it is irreversible. In severe cases, it can lead to wellbore integrity failure, shorten the service life of the shale oil well, and seriously affect on-site well control safety. To accurately monitor the displacement of shale oil wellheads, an innovative automatic early warning device for shale oil wellhead displacement monitoring has been developed. This device automatically issues warnings based on pre-set warning values ​​and features remote transmission capabilities, utilizing the system for automatic monitoring and early warning.

[0003] Announcement No. CN216741486U discloses a wellhead displacement monitoring device, including a mounting part, an extension part, and a measuring scale. The mounting part is detachably mounted on a fixed structure at the wellhead. The extension part is movably connected to the mounting part and extends along a first direction parallel to the axial direction of the wellhead. The measuring scale is detachably disposed at the end of the extension part away from the mounting part to determine the displacement monitoring point of the wellhead by corresponding to the scale line of the measuring scale.

[0004] The existing technology uses traditional detection techniques, requires the installation of a ruler, the installation process is complicated, the application scenarios are not wide, and manual inspection is required. It cannot achieve remote data transmission and early warning functions, the function is relatively simple, and the monitoring results are of low accuracy.

[0005] Announcement No.: CN220378236U discloses a simple measuring device for lifting the wellhead of an oil and gas tree, comprising: a support mechanism including a support frame and multiple support feet connected to the support frame, each support foot being fixedly connected to the ground and the height of each support foot being adjustable; a scale mechanism, the lower end of which is fixedly connected to the upper end of the support mechanism, the scale mechanism including a vertical scale rod with vertically arranged height scales; a level fixed to the upper end of the scale mechanism; and a pointer, which is horizontally set, with one end connected to the oil and gas tree and the other end pointing to the scale of the scale mechanism.

[0006] The existing technology uses traditional mechanical calibration methods for monitoring, which cannot meet the needs of applications with changing on-site working conditions and production scenarios. In addition, the installation process is complicated, and the initial point needs to be manually verified. There are many mechanical connection parts, which can easily cause large errors and affect the accuracy of monitoring results.

[0007] Announcement No. CN219316937U discloses a wellhead lift displacement monitoring device, including a fixing mechanism, a moving tube, and a fixing rod. The moving tube is fixedly connected to the casing annulus plate through the fixing mechanism, and the fixing rod is fixedly connected to the deck. The moving tube is sleeved on the fixing rod, and the moving tube and the fixing rod can move axially relative to each other. One of the fixing rod and the moving tube is provided with a pointer, and the other is provided with a scale mechanism for the pointer to indicate.

[0008] The existing technology uses a traditional mechanical calibration method for monitoring, which involves many mechanical connections, making it prone to large errors and affecting the accuracy of monitoring results.

[0009] In summary, the technical solutions, technical problems to be solved, and beneficial effects of the above-disclosed technologies are all different from those of this utility model. For more technical features, technical problems to be solved, and beneficial effects of this utility model, the above-disclosed technical documents do not provide any technical inspiration. Utility Model Content

[0010] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background art, this utility model provides an automatic early warning device for shale oil wellhead displacement monitoring.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] An automatic early warning device for shale oil wellhead displacement monitoring includes a base and a measuring component. The measuring component includes a measuring part and a fixing part. The measuring part includes a telescopic rod assembly. The lower end of the telescopic rod of the telescopic rod assembly is omnidirectionally connected to the base. The upper end of the telescopic outer sleeve of the telescopic rod assembly is connected to a measuring instrument. The telescopic outer sleeve is connected to the fixing part. An angle sensor and a distance sensor are installed inside the measuring instrument. The probe of the distance sensor is installed inside the telescopic outer sleeve and above the telescopic rod. The distance sensor measures the distance between the probe and the telescopic rod.

[0013] Furthermore, a detection hole is provided at the upper end of the telescopic jacket, the detection hole is connected to the meter connecting post, and the meter connecting post is connected to the measuring instrument;

[0014] Specifically, the angle sensor is a sub-gyroscope module used to measure the tilt angle;

[0015] Specifically, the distance sensor is an infrared distance measurement module, and an infrared probe of the infrared distance measurement module is installed inside the meter head connecting column. The infrared probe measures the position of the telescopic rod to realize the distance measurement.

[0016] Furthermore, the lower end of the telescopic rod is connected to a balance bar, the lower end of the balance bar is connected to a universal joint, the universal joint is rotatably connected to a universal joint sleeve, the universal joint sleeve is connected to a magnetic component, and the magnetic component is connected to a base.

[0017] Furthermore, the measuring instrument is equipped with an industrial control display screen to display the detection data of the electronic gyroscope module and the infrared distance measurement module, and the measuring instrument is equipped with a wireless module to transmit monitoring data and receive control signals.

[0018] Furthermore, the upper surface of the telescopic rod is frosted.

[0019] Furthermore, the universal joint is a ball joint.

[0020] Furthermore, the fixing portion of the measuring component includes a fixing sleeve;

[0021] Specifically, the outer wall of the fixed sleeve is connected to an adjustable bracket, and the adjustable bracket is connected to a telescopic rod assembly.

[0022] Furthermore, the adjustable bracket includes a bracket sleeve, a bracket rod, and a locking bolt;

[0023] Specifically, the sleeve wall of the bracket is provided with a slide rail hole, the outer peripheral wall of the bracket rod is provided with a locking hole, the bracket rod is slidably inserted into the bracket sleeve, the locking bolt passes through the slide rail hole, the locking bolt is threadedly connected to the locking hole, and the bracket sleeve and the bracket rod are locked by tightening the locking bolt;

[0024] Specifically, one of the bracket sleeve and the bracket rod is connected to the outer wall of the fixed sleeve, and the other is connected to the connecting ring, which is connected to the telescopic outer sleeve of the telescopic rod assembly.

[0025] Furthermore, it also includes power supply components;

[0026] Specifically, the power supply component includes a solar panel, which is mounted on the upper end of the measuring instrument and is electrically connected to the measuring instrument.

[0027] Specifically, the solar panel integrates an inverter and a battery to provide 24-hour power.

[0028] Furthermore, it also includes protective components;

[0029] Specifically, the protective component includes a connecting sleeve connected to the base, a magnetic component located inside the connecting sleeve, a protective sleeve connected to the upper end of the connecting sleeve, a dustproof brush installed inside the protective sleeve, and the top end of the protective sleeve located below the top end of the balance bar, so that the protective sleeve will not affect the tilt of the measuring component.

[0030] Compared with the prior art, the present invention has the following advantages:

[0031] 1. This utility model realizes digital monitoring, without the influence of elastic deformation of connecting parts, and the monitoring accuracy can reach 0.05%.

[0032] 2. This utility model enables real-time monitoring of two parameters: wellhead displacement height and offset. It has a wide monitoring range and can meet the needs of on-site working conditions.

[0033] 3. This utility model allows data to be observed in the production operation command center, enabling on-site data display and remote transmission without the need for manual inspection, thus reducing labor costs. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of the automatic early warning device for shale oil wellhead displacement monitoring according to this utility model.

[0035] Figure 2 This is a schematic diagram of the structure of the automatic early warning device for shale oil wellhead displacement monitoring according to this utility model.

[0036] Figure 3 This is a schematic diagram of the protective component in this utility model.

[0037] In the diagram: 1. Base; 1-1. U-shaped fixing plate; 1-2. Magnetic component;

[0038] 2. Measuring components; 2-1. Fixing sleeve; 2-2. Adjustable bracket; 2-3. Meter head connecting post; 2-4. Measuring instrument; 2-5. Locking bolt; 2-6. Telescopic sleeve; 2-7. Telescopic rod; 2-8. Balance bar; 2-9. Universal joint; 2-10. Universal joint sleeve; 2-11. Connecting ring; 2-12. External positioning hole;

[0039] 3. Power supply components; 3-1. Solar panels;

[0040] 4. Protective components; 4-1. Connecting sleeve; 4-2. Fastening sleeve; 4-3. Protective sleeve; 4-4. Dustproof brush; 5. Signal amplifier. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Example 1:

[0043] Please see Figures 1 to 3The automatic early warning device for shale oil wellhead displacement monitoring provided by this utility model includes a base 1 and a measuring component 2. The measuring component 2 includes a measuring part and a fixing part. The measuring part includes a telescopic rod assembly. The lower end of the telescopic rod 2-7 of the telescopic rod assembly is omnidirectionally connected to the base 1. The upper end of the telescopic outer sleeve 2-6 of the telescopic rod assembly is connected to the measuring instrument 2-4. The telescopic outer sleeve 2-6 is connected to the fixing part.

[0044] Specifically, the base 1 includes a U-shaped fixing plate 1-1, two vertical plates of the U-shaped fixing plate 1-1 are fixedly installed on the reference surface support by bolts, and a magnetic component 1-2 is fixedly connected to the horizontal plate of the U-shaped fixing plate 1-1, such as by setting countersunk holes in the magnetic component 1-2 and fixing it with countersunk bolts.

[0045] Preferably, the magnetic components 1-2 are made of neodymium iron boron, which has high magnetic field strength, fast recharge speed and good temperature stability, and is reasonably priced.

[0046] Specifically, the fixed part of the measuring component 2 includes a fixed sleeve 2-1, the outer wall of the fixed sleeve 2-1 is connected to an adjustable bracket 2-2, the adjustable bracket 2-2 is connected to a telescopic rod assembly, the adjustable bracket 2-2 includes a bracket sleeve, a bracket rod, and a locking bolt 2-5, the sleeve wall of the bracket sleeve is provided with a slide rail hole, the outer peripheral wall of the bracket rod is provided with a locking hole, the bracket rod is slidably inserted into the bracket sleeve, the locking bolt passes through the slide rail hole, the locking bolt 2-5 is threadedly connected to the locking hole, and the bracket sleeve and the bracket rod are locked by tightening the locking bolt, one of the bracket sleeve and the bracket rod is connected to the outer wall of the fixed sleeve 2-1, and the other is connected to a connecting ring 2-11, the connecting ring 2-11 is connected to the telescopic rod assembly.

[0047] More specifically, one of the bracket sleeve and the bracket rod is integrally formed with the fixing sleeve 2-1, and the other is integrally formed with the connecting ring 2-11.

[0048] Among them, the fixing sleeve 2-1 is connected to the wellhead large four-way flange by bolt thread during use.

[0049] Furthermore, the upper end of the telescopic sleeve 2-6 is provided with a detection hole, which is connected to the meter head connecting post 2-3. The meter head connecting post 2-3 passes through the connecting ring 2-11 and is connected to the connecting ring 2-11. The meter head connecting post 2-3 is connected to the measuring instrument 2-4. The measuring instrument 2-4 is provided with an electronic gyroscope module for measuring the tilt angle. The measuring instrument 2-4 is provided with an infrared distance measuring module. The meter head connecting post 2-3 is provided with an infrared probe. The infrared probe measures the position of the telescopic rod 2-7 to achieve distance measurement. The lower end of the telescopic rod 2-7 is connected to a balance rod 2-8. The lower end of the balance rod 2-8 is connected to a universal joint 2-9. The universal joint 2-9 is externally rotatably connected to a universal joint sleeve 2-10. The universal joint sleeve 2-10 is connected to the magnetic component 1-2.

[0050] Specifically, the measuring instrument 2-4 is equipped with an industrial control display screen to display the detection data of the electronic gyroscope module and the infrared distance measurement module. The electronic gyroscope module can be an ADI ADIS16470, and the infrared distance measurement module can be an Omron E3Z-LS61. Their structure and usage methods are existing technologies and will not be described in detail here.

[0051] Specifically, the upper surface of the telescopic rod 2-7 is frosted, enabling the infrared distance measurement module to measure accurately.

[0052] Specifically, the meter head connecting post 2-3 is threadedly connected to the measuring instrument 2-4, and the assembly is completed during the production of the measuring instrument 2-4; the meter head connecting post 2-3 is threadedly connected to the telescopic sleeve 2-6; the connecting ring 2-11 is sleeved on the meter head connecting post 2-3, and the connecting ring 2-11 is provided with two parallel external positioning holes 2-6-1, and the meter head connecting post 2-3 is provided with positioning screw holes corresponding to the external positioning holes 2-6-1. The external positioning holes 2-6-1 and the positioning screw holes are connected by screws to achieve a locking connection between the connecting ring 2-11 and the meter head connecting post 2-3.

[0053] Specifically, a positioning nut is provided between the telescopic rod 2-7 and the telescopic outer sleeve 2-6 and the balance rod 2-8 to prevent the telescopic outer sleeve 2-6 from contacting the balance rod 2-8. The outer diameter of the balance rod 2-8 is larger than that of the telescopic rod 2-7. The balance rod 2-8 is used to increase the weight of the telescopic rod 2-7 so that the telescopic rod 2-7 can always be located at the lowest point, avoiding the friction force affecting the extension and retraction of the telescopic rod 2-7 when tilted.

[0054] Specifically, the universal joint 2-9 is connected to the threaded hole of the balance bar 2-8 via a stud, and the universal joint sleeve 2-10 is connected to the threaded hole of the magnetic component 1-2 via a stud. The magnetic force of the magnetic component 1-2 enables the universal joint 2-9 and the universal joint sleeve 2-10 to form a reliable connection.

[0055] Preferably, the universal joints 2-9 are ball joints, which enable the magnetic force of the magnetic components 1-2 to be fully utilized.

[0056] Example 2:

[0057] Based on Embodiment 1, this embodiment provides a power supply component 3 and a protection component 4.

[0058] The power supply component 3 includes a solar panel 3-1, which is installed on the upper end of the measuring instrument 2-4 and is electrically connected to the measuring instrument.

[0059] Specifically, the solar panel 3-1 integrates an inverter and a battery to provide 24-hour power supply.

[0060] The protective component 4 includes a connecting sleeve 4-1, which is connected to the horizontal plate of the U-shaped fixing plate 1-1. The magnetic component 1-2 is located inside the connecting sleeve 4-1. The upper end of the connecting sleeve 4-1 is connected to a protective sleeve 4-3. A dustproof brush 4-4 is installed inside the protective sleeve 4-3. The top end of the protective sleeve 4-3 is located below the top end of the balance rod 2-8, so that the protective sleeve 4-3 will not affect the tilt of the measuring component 2.

[0061] Among them, the dustproof brush 4-4 prevents dust from entering the universal joint 2-9 and universal joint sleeve 2-10, extending service life and maintenance cycle.

[0062] Specifically, two dustproof brushes 4-4 are provided, distributed at the upper end and middle of the protective sleeve 4-3.

[0063] Specifically, a connecting ring is provided on the lower outer wall of the protective sleeve 4-3, and a fastening sleeve 4-2 is placed on the upper end of the connecting ring. The fastening sleeve 4-2 is connected to the connecting sleeve 4-1 by bolts to lock the protective sleeve 4-3.

[0064] Furthermore, a wireless communication module is installed inside the measuring instrument 2-4, and a signal amplifier 5 is fixedly installed on the outer wall of the measuring instrument 2-4 by screws. The signal amplifier 5 is electrically connected to the wireless communication module. The signal amplifier 5 can expand the signal coverage of the device, enabling the device to maintain a connection at a greater distance, and can avoid signal interference sources that may exist indoors, thereby ensuring stable signal transmission. It should be noted that the signal amplifier 5 is also powered by the solar power panel 3-1.

[0065] Specifically, the wireless communication module can be a WiFi module or an IoT card module. The wireless communication module is wirelessly connected to the well site RTU, enabling the device to access the existing well site intelligent management system. The WiFi module can be a USR-W600, the IoT card module can be a SIM7600G-H 4G Dongle, and the well site RTU model can be ZWCM-J300. Their structure and usage methods are existing technologies and will not be described in detail here.

[0066] Example 3:

[0067] Based on Example 2, this example provides the workflow of an automatic early warning device for shale oil wellhead displacement monitoring:

[0068] This device can realize real-time monitoring and display of wellhead lift in shale oil wells. Due to the thermal expansion of the well casing, high axial thermal stress is generated. The volume expansion of the annulus fluid causes high pressure in the sealed space. The axial pressure increases and pushes against the wellhead, causing wellhead lift. Once this situation occurs, it is irreversible.

[0069] When the wellhead device is lifted, it will be lifted as a whole due to its integral structure. At this time, the monitoring device installed at the flange bolt of the large cross-shaped wellhead is fixed by the fixing sleeve 2-1 and adjusted to a suitable distance by the adjustable bracket 2-2 and the locking bolt 2-5, so that the upper part of the monitoring device is firmly fixed to the wellhead.

[0070] When the wellhead is raised, the monitoring equipment will also be raised. The bottom of the monitoring device is fixed to the reference surface support by the U-shaped fixing plate 1-1 and attracted by the magnetic component 1-2. The height of the telescopic rod 2-7 is kept constant by the balance rod 2-8. When the wellhead is raised, since the height of the telescopic rod 2-7 remains constant, the telescopic outer sleeve 2-6 moves upward. The probe of the infrared distance measurement module measures the distance from the edge of the telescopic rod 2-7 and displays the data on the industrial control display screen, realizing real-time monitoring and display of the wellhead raising.

[0071] If the wellhead device tilts, the entire device will tilt due to its integral structure.

[0072] When the wellhead tilts, the telescopic rod 2-7 moves within the telescopic sleeve 2-6, and the universal joint 2-9 rotates within the universal joint sleeve 2-10, allowing the measuring component 2 to follow the wellhead tilt. The electronic gyroscope in the measuring instrument 2-4 also tilts, measuring the tilt data and displaying it on the screen. This enables real-time monitoring and display of shale oil wellhead tilt. By combining the tilt data, the distance data from the infrared distance measurement module, and trigonometric functions, the wellhead uplift can be obtained.

[0073] This utility model provides an automatic early warning device for shale oil wellhead displacement monitoring, enabling remote transmission and early warning of wellhead displacement monitoring data. Data is transmitted via network signal, and an external signal amplifier 5 amplifies the wireless network signal, facilitating stable and accurate transmission of measurement data. Using the ZWCM-J300 well site RTU, early warning values ​​can be set for monitoring data (height, angle). When the monitored data exceeds the warning value, a message is pushed from the system background to the display terminal (computer webpage, mobile APP). The changes in the values ​​can be viewed on the mobile device, and the warning value can be set according to the oil well production tubing and production conditions to achieve automatic early warning functionality.

[0074] All components not discussed in detail in this application, as well as the connection methods of these components, are well-known technologies in this field. They can be directly applied and will not be elaborated further.

[0075] In this utility model, the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0076] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0077] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shale oil wellhead displacement monitoring automatic early warning device, comprising a base, a measuring assembly, the measuring assembly comprising a measuring part, a fixing part, characterized in that, The measuring section includes a telescopic rod assembly; The lower end of the telescopic rod of the telescopic rod assembly is omnidirectionally connected to the base, the upper end of the telescopic outer sleeve of the telescopic rod assembly is connected to the measuring instrument, and the telescopic outer sleeve is connected to the fixed part; The measuring instrument is equipped with an angle sensor and a distance sensor. The probe of the distance sensor is located inside the telescopic sleeve and above the telescopic rod. The distance sensor measures the distance between the probe and the telescopic rod.

2. The shale oil wellhead displacement monitoring automatic warning device according to claim 1, characterized in that, The upper end of the telescopic jacket is provided with a detection hole, which is connected to the meter connecting post, and the meter connecting post is connected to the measuring instrument; The angle sensor is a sub-gyroscope module used to measure the tilt angle; The distance sensor is an infrared distance measurement module. An infrared probe of the infrared distance measurement module is installed inside the meter head connecting column. The infrared probe measures the position of the telescopic rod to realize the distance measurement.

3. The automatic pre-warning device for shale oil wellhead displacement monitoring according to claim 2, characterized in that, The lower end of the telescopic rod is connected to a balance bar, the lower end of the balance bar is connected to a universal joint, the universal joint is rotatably connected to a universal joint sleeve, the universal joint sleeve is connected to a magnetic component, and the magnetic component is connected to a base.

4. The automatic pre-warning device for shale oil wellhead displacement monitoring according to claim 2, characterized in that, The measuring instrument is equipped with an industrial control display screen to display the detection data of the electronic gyroscope module and the infrared distance measurement module. The measuring instrument is also equipped with a wireless module to transmit monitoring data and receive control signals.

5. The automatic pre-warning device for shale oil wellhead displacement monitoring according to claim 1, characterized in that, The upper surface of the telescopic rod is frosted.

6. The automatic pre-warning device for shale oil wellhead displacement monitoring according to claim 3, characterized in that, The universal joint is a ball joint.

7. The automatic pre-warning device for shale oil wellhead displacement monitoring according to claim 1, characterized in that, The fixing part of the measuring component includes a fixing sleeve; The outer wall of the fixed sleeve is connected to an adjustable bracket, and the adjustable bracket is connected to a telescopic rod assembly.

8. The automatic pre-warning device for shale oil wellhead displacement monitoring according to claim 7, characterized in that, The adjustable bracket includes a bracket sleeve, a bracket rod, and a locking bolt; The sleeve of the bracket is provided with a slide rail hole in its sleeve wall, and the outer peripheral wall of the bracket rod is provided with a locking hole. The bracket rod is slidably inserted into the bracket sleeve, and the locking bolt passes through the slide rail hole. The locking bolt is threadedly connected to the locking hole. The bracket sleeve and the bracket rod are locked by tightening the locking bolt. One of the bracket sleeve and the bracket rod is connected to the outer wall of the fixed sleeve, and the other is connected to the connecting ring. The connecting ring is connected to the telescopic outer sleeve of the telescopic rod assembly.

9. The automatic pre-warning device for shale oil wellhead displacement monitoring according to claim 1, characterized in that, It also includes power supply components; The power supply component includes a solar panel, which is mounted on the upper part of the measuring instrument and is electrically connected to the measuring instrument. The solar panel integrates an inverter and a battery to provide 24-hour power.

10. The automatic pre-warning device for shale oil wellhead displacement monitoring according to claim 3, characterized in that, It also includes protective components; The protective component includes a connecting sleeve connected to the base, a magnetic component located inside the connecting sleeve, a protective sleeve connected to the upper end of the connecting sleeve, a dustproof brush installed inside the protective sleeve, and the top end of the protective sleeve located below the top end of the balance bar, so that the protective sleeve will not affect the tilt of the measuring component.

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