Underground oil pipe corrosion monitoring device

Abstract

The utility model provides an underground oil pipe corrosion monitoring device, and belongs to the technical field of underground oil pipe corrosion monitoring. The underground oil pipe corrosion monitoring device comprises a shell, a detection mechanism comprises an oil pipe body, the oil pipe body is arranged in the shell, two sets of sensors are arranged on the surface of the oil pipe body, and springs are arranged on the opposite sides of the two sets of sensors. The oil pipe body, the spring, the sensor and the shell are matched with one another, the spring is extruded to drive the sensor to be compressed and then sleeved on the surface of the oil pipe body, the spring rebounds to be attached to the oil pipe body after being placed, the shell is placed into an oil well along with the oil pipe body, and the sensor can detect the corrosion condition of the surface of the oil pipe body. And after monitoring is completed, corresponding data analysis software is used for reading and analyzing corrosion data, so that the outer wall of the oil pipe body does not need to be punched, electrodes do not need to be welded, and installation hidden dangers cannot be generated.

Description

Technical Field

[0001] The utility model relates to the field of underground oil pipe corrosion monitoring, in particular to a underground oil pipe corrosion monitoring device. Background Art

[0002] Downhole oil pipe corrosion monitoring device is a device used to monitor the corrosion of downhole oil pipes. These devices play a key role in ensuring the integrity of the pipeline, extending its service life, and preventing accidents and leaks. They are usually equipped with a sensor system, which is a sensor installed on the surface or inside the oil pipe to detect the corrosion of the pipeline surface. The sensor may use a variety of technologies, such as ultrasonic, resistivity measurement, electrochemical sensors, etc., and is also equipped with a data acquisition unit, including information such as corrosion rate, corrosion degree, and pipeline wall thickness. These devices can detect potential problems early by monitoring pipeline corrosion in real time, and take appropriate measures to protect the safe and reliable operation of the pipeline.

[0003] In the specific monitoring of downhole oil pipe corrosion, measuring electrodes are usually welded on the outer wall of the oil pipe, an excitation signal is applied to the oil pipe, and the corrosion changes of the oil pipe are measured by the measuring electrodes. Although this detection method can obtain detailed corrosion process data, it is necessary to drill holes and weld electrodes on the outer wall of the oil pipe during monitoring, thereby changing the normal state of the oil pipe. If this is done, it may cause safety hazards and is inconvenient for operators to use. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a downhole oil pipe corrosion monitoring device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a downhole oil pipe corrosion monitoring device, comprising a housing,

[0007] The detection mechanism comprises an oil pipe body, the oil pipe body is arranged inside the housing, two groups of sensors are arranged on the surface of the oil pipe body, and springs are arranged on opposite sides of the two groups of sensors;

[0008] The data collector and the communication box are both arranged on the surface of the oil pipe body, one side of the data collector and the communication box is provided with a tension spring, and the interior of the shell is provided with a corrosive medium.

[0009] In a preferred solution, a mounting block is provided at one end of the spring, and the mounting block is arranged in the inner cavity of the shell.

[0010] In a preferred solution, a fixing block is provided at one end of one group of the springs, and the fixing block is arranged inside the housing.

[0011] In a preferred solution, a limit block is provided at one end of another group of springs, and the limit block is arranged inside the shell.

[0012] In a preferred solution, a limiting ring is arranged between the two groups of the mounting blocks, and the surface of the limiting ring is adapted to the inner cavity of the shell.

[0013] In a preferred solution, a plurality of power supply boxes are arranged on the surface of the oil pipe body, and the plurality of power supply boxes are respectively connected to the data collector and the communication box.

[0014] In a preferred solution, a connector is disposed on the top of the oil pipe body, and a limit plate is disposed on the surface of the oil pipe body.

[0015] In a preferred solution, bolts are arranged inside the limiting plate, and the limiting plate is connected to the housing.

[0016] The utility model provides a downhole oil pipe corrosion monitoring device, and its beneficial effects include:

[0017] 1. Through the cooperation of the tubing body, spring, sensor and shell, first squeeze the spring to drive the sensor to compress, and then insert it into the surface of the tubing body. After it is inserted, the spring rebounds and fully fits the tubing body. Put the shell into the oil well along with the tubing body. The corrosion condition of the surface of the tubing body can be detected by the sensor. After the monitoring operation is completed, use the corresponding data analysis software to read and analyze the corrosion data, so there is no need to drill holes on the outer wall of the tubing body and weld electrodes, and there will be no installation hazards.

[0018] 2. Through the cooperation of the data collector, the oil pipe body and the communication box, the data collector can be used to check the corrosion rate, corrosion degree, pipe wall thickness and other information of the oil pipe body, process and analyze the corrosion data of the oil pipe body, and record the data. It can also monitor the corrosion of the oil pipe body and predict the remaining life of the pipeline. By setting the communicator inside the communication box, the data collected from the oil pipe body can be transmitted to the ground equipment or control center. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is an overall stereogram provided by the embodiment of the utility model;

[0021] Figure 2 A schematic diagram of a shell cross-section structure provided for an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the internal structure of a housing provided in an embodiment of the utility model;

[0023] Figure 4 The utility model embodiment provides Figure 3 The enlarged view of point A in the middle;

[0024] In the figure: 1. detection mechanism; 11. shell; 12. oil pipe body; 13. corrosive medium; 14. limit ring; 15. mounting block; 16. sensor; 17. spring; 18. connector; 19. limit plate; 2. fixing block; 21. tension spring; 22. data collector; 23. power supply box; 24. limit block; 25. communication box. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Reference Figure 1-Figure 4The utility model provides a technical solution: a downhole oil pipe corrosion monitoring device, including a shell 11, a detection mechanism 1, a data collector 22 and a communication box 25. The detection mechanism 1 includes an oil pipe body 12, and the oil pipe body 12 is arranged inside the shell 11. Two groups of sensors 16 are arranged on the surface of the oil pipe body 12. Springs 17 are arranged on the opposite sides of the two groups of sensors 16. Through the mutual cooperation of the oil pipe body 12, the spring 17, the sensor 16 and the shell 11, when the operator needs to monitor the corrosion of the oil pipe body 12 downhole, the spring 17 is first squeezed to drive the sensor 16 to be compressed, and then it is inserted into the surface of the oil pipe body 12. When it is put in The rear spring 17 rebounds, so that the sensor 16 and the oil pipe body 12 are fully fitted. At this time, the sensor 16 is fixed on the oil pipe body 12. After the installation work is completed, the shell 11 is lowered into the oil well together with the oil pipe body 12, and the corrosion condition on the surface of the oil pipe body 12 can be detected by the sensor 16. The data collected from the oil pipe body 12 can be transmitted through wireless communication or cable. After the monitoring operation is completed, the operator can use the corresponding data analysis software to read and analyze the corrosion data, so there is no need to drill holes on the outer wall of the oil pipe body 12 and weld electrodes, thereby avoiding changing the normal state of the oil pipe body 12 and causing installation hazards.

[0027] Reference Figure 1-Figure 4 In a preferred embodiment, the data collector 22 and the communication box 25 are both arranged on the surface of the oil pipe body 12, and a tension spring 21 is arranged on one side of the data collector 22 and the communication box 25. A corrosive medium 13 is arranged inside the shell 11. The corrosive medium 13 is a substance that can cause corrosion to the oil pipe body 12. A mounting block 15 is arranged at one end of the spring 17, and the mounting block 15 is arranged in the inner cavity of the shell 11. One end of one group of springs 17 is provided with a fixed block 2, and the fixed block 2 is arranged inside the shell 11. One end of the other group of springs 17 is provided with a limit block 24, and the limit block 24 is arranged inside the shell 11. The two groups A limit ring 14 is arranged between the mounting blocks 15, and the surface of the limit ring 14 is adapted to the inner cavity of the shell 11. Through the cooperation of the data collector 22, the oil pipe body 12 and the communication box 25, the corrosion rate, corrosion degree, pipe wall thickness and other information of the oil pipe body 12 can be checked through the data collector 22, and the corrosion data of the oil pipe body 12 can be processed and analyzed, and the data can be recorded. The corrosion condition of the oil pipe body 12 can also be monitored and the remaining life of the pipeline can be predicted. By setting a communicator inside the communication box 25, the data collected from the oil pipe body 12 can be transmitted to the ground equipment or the control center.

[0028] Reference Figure 1-Figure 4In a preferred embodiment, a plurality of power supply boxes 23 are provided on the surface of the oil pipe body 12, and the plurality of power supply boxes 23 are respectively connected to the data acquisition device 22 and the communication box 25. The power supply box 23 also supplies power to the sensor 16. A connector 18 is provided on the top of the oil pipe body 12, and the connector 18 can be connected to other equipment. A limit plate 19 is provided on the surface of the oil pipe body 12, and bolts are provided inside the limit plate 19. The limit plate 19 is connected to the shell 11, and the shell 11 can be limited by providing the limit plate 19.

[0029] Specifically, the working process or working principle of the downhole oil pipe corrosion monitoring device is as follows: in the specific downhole oil pipe corrosion monitoring, usually the measuring electrode is welded on the outer wall of the oil pipe, an excitation signal is applied to the oil pipe, and the corrosion change of the oil pipe is measured by the measuring electrode. Although this detection method can obtain detailed corrosion process data, it is necessary to drill holes and weld electrodes on the outer wall of the oil pipe during monitoring, thereby changing the normal state of the oil pipe. If this is done, it may cause safety hazards and is inconvenient for the operator to use. Therefore, this technical solution can solve the above problems. When the operator needs When the corrosion of the tubing body 12 is to be monitored, the sensor 16 is first compressed by squeezing the spring 17, and then inserted into the surface of the tubing body 12. After the insertion, the spring 17 rebounds, so that the sensor 16 is fully fitted with the tubing body 12. Then, in the same way, the tension spring 21 is squeezed to make the data collector 22 and the communication box 25 fully fit into the surface of the tubing body 12, so that the data collector 22 and the communication box 25 are fully fitted with the tubing body 12. At this time, the sensor 16, the data collector 22 and the communication box 25 are all After the installation work is completed, the housing 11 is lowered into the oil well together with the oil pipe body 12, and the specific depth can be detected through the sensor 16, the data acquisition device 22 and the communication box 25, and then the corrosive medium 13 is poured into the interior of the housing 11. At this time, the corrosion condition of the surface of the oil pipe body 12 can be detected through the sensor 16, and the corrosion rate, corrosion degree, pipe wall thickness and other information of the oil pipe body 12 can be checked through the data acquisition device 22, and the corrosion data of the oil pipe body 12 can be processed and analyzed, and the data can be recorded. The corrosion condition of the oil pipe body 12 can also be monitored and the remaining life of the pipeline can be predicted. By setting the communicator inside the communication box 25, the data collected from the oil pipe body 12 can be transmitted to the ground equipment or the control center through wireless communication or cable transmission. After the monitoring operation is completed, the operator can use the corresponding data analysis software to read and analyze the corrosion data, so that there is no need to drill holes in the outer wall of the oil pipe body 12 and weld electrodes, thereby avoiding changing the normal state of the oil pipe body 12, and no installation hidden dangers will be generated, which is convenient for the operator to use.

[0030] It should be noted that the sensor 16, data collector 22, power supply box 23 and communicator are all electrically connected to an external power supply and are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art. Their power supply, specific composition and principles are clear to those skilled in the art, so they will not be described in detail.

Claims

1. A downhole oil pipe corrosion monitoring device, comprising a housing (11), characterized in that: A detection mechanism (1), the detection mechanism (1) comprising an oil pipe body (12), the oil pipe body (12) being arranged inside a housing (11), two groups of sensors (16) being arranged on a surface of the oil pipe body (12), and springs (17) being arranged on opposite sides of the two groups of sensors (16); A data collector (22) and a communication box (25), wherein the data collector (22) and the communication box (25) are both arranged on the surface of the oil pipe body (12), a tension spring (21) is arranged on one side of the data collector (22) and the communication box (25), and a corrosive medium (13) is arranged inside the housing (11).

2. A downhole oil pipe corrosion monitoring device according to claim 1, characterized in that: One end of the spring (17) is provided with a mounting block (15), and the mounting block (15) is arranged in the inner cavity of the housing (11).

3. A downhole oil pipe corrosion monitoring device according to claim 2, characterized in that: One end of one group of the springs (17) is provided with a fixing block (2), and the fixing block (2) is arranged inside the housing (11).

4. A downhole oil pipe corrosion monitoring device according to claim 3, characterized in that: A limit block (24) is provided at one end of another group of springs (17), and the limit block (24) is arranged inside the housing (11).

5. A downhole oil pipe corrosion monitoring device according to claim 2, characterized in that: A limiting ring (14) is arranged between the two groups of mounting blocks (15), and the surface of the limiting ring (14) is adapted to the inner cavity of the housing (11).

6. A downhole oil pipe corrosion monitoring device according to claim 4, characterized in that: A plurality of power supply boxes (23) are arranged on the surface of the oil pipe body (12), and the plurality of power supply boxes (23) are respectively connected to the data collector (22) and the communication box (25).

7. A downhole oil pipe corrosion monitoring device according to claim 6, characterized in that: A connector (18) is disposed on the top of the oil pipe body (12), and a limit plate (19) is disposed on the surface of the oil pipe body (12).

8. A downhole oil pipe corrosion monitoring device according to claim 7, characterized in that: Bolts are arranged inside the limiting plate (19), and the limiting plate (19) is connected to the housing (11).

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