Oil well liquid level dynamic monitoring device

Abstract

The utility model discloses an oil well liquid level dynamic monitoring device, and belongs to the technical field of oil well liquid level monitoring. Comprising an oil well body; a monitoring pipe is inserted into the oil well main body, and the monitoring pipe is fixedly connected with the oil well main body; a communication hole communicated with the outside is formed in the monitoring pipe; an inflatable floating block is arranged in the monitoring pipe, a liquid level temperature sensor is fixedly connected below the inflatable floating block, and a displacement sensor is fixedly connected above the inflatable floating block; a central processing unit is arranged on the oil well main body and is in circuit connection with the liquid level temperature sensor and the displacement sensor. The inflatable floating block is arranged in the monitoring pipe, the liquid level temperature sensor and the displacement sensor for monitoring the liquid level are driven by buoyancy of the inflatable floating block to dynamically change in real time, the structure is simple, operation is convenient, and real-time dynamic monitoring of the oil well liquid level can be achieved.

Description

Technical Field

[0001] The utility model provides an oil well liquid level dynamic monitoring device, belonging to the technical field of oil well liquid level monitoring. Background Art

[0002] Monitoring the liquid level of oil wells is a crucial task in oilfield production management and safe operation, helping production personnel understand the production and output of oil wells; the data to be monitored are usually the liquid level height and temperature of the oil wells. Monitoring the liquid level of oil wells can prevent safety risks caused by too high or too low liquid levels, and can help production personnel understand the status of crude oil. Due to the dynamic changes in the liquid level of oil wells, the real-time monitoring of the liquid level of oil wells is insufficient.

[0003] In view of the above problems, publication number CN220151341U discloses an oil well dynamic liquid level monitoring device, comprising a ground and an oil well, wherein a rotating component is installed on the top of the ground, and a monitoring component is installed inside the oil well.

[0004] The above application can lower the monitoring instrument to above the dynamic liquid level for inspection by setting a rotating component to achieve the effect of real-time monitoring, but its structure is complex and inconvenient to operate, and it needs to use a motor to drive the monitoring instrument to change with the changes in the liquid level. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing device for dynamic monitoring of the oil well liquid level has a complex structure and is inconvenient to operate.

[0006] In order to solve the above problems, the utility model proposes a technical solution: a device for dynamic monitoring of the liquid level in an oil well, comprising an oil well body; a monitoring tube is inserted into the oil well body, and the monitoring tube is fixedly connected to the oil well body; a connecting hole connected to the outside is opened on the monitoring tube; an inflatable float is arranged in the monitoring tube, a liquid level temperature sensor is fixedly connected below the inflatable float, and a displacement sensor is fixedly connected above the inflatable float; a central processing unit is arranged on the oil well body, and the central processing unit is connected to the liquid level temperature sensor and the displacement sensor circuit.

[0007] As an improvement, a mounting block fixedly connected to the monitoring pipe is provided on the oil well body, and the mounting block is fixedly connected to the oil well body by screws.

[0008] As an improvement, the communicating holes are arranged on both the side and the bottom of the monitoring tube.

[0009] As an improvement, a wellhead temperature sensor is fixedly arranged on the top of the monitoring pipe, and an internal temperature sensor is fixedly arranged on the bottom of the monitoring pipe.

[0010] As an improvement, the central processing unit includes a data receiving module and a data conversion and analysis module; the displacement sensor, liquid surface temperature sensor, wellhead temperature sensor, and internal temperature sensor are all connected to the data receiving module circuit; and the data conversion and analysis module is connected to the data receiving module circuit.

[0011] Beneficial effects of the utility model:

[0012] A monitoring tube is inserted into the main body of the oil well, and a connecting hole communicating with the outside world is opened on the monitoring tube; by setting the monitoring tube with the connecting hole, the liquid level in the monitoring tube inserted into the main body of the oil well can be flush with the liquid level inside the main body of the oil well; an inflatable float is arranged in the monitoring tube, and a liquid level temperature sensor and a displacement sensor are connected to the inflatable float. Therefore, when the liquid level in the main body of the oil well changes, the inflatable float can drive the liquid level temperature sensor and the displacement sensor to follow the synchronous change, and can dynamically monitor the liquid level of the oil well in real time. The overall structure is simple and easy to operate. The buoyancy of the oil well liquid surface itself is fully utilized to drive the temperature sensor and the displacement sensor to work, and a central processing unit is arranged to convert the displacement change of the displacement sensor into the height change of the oil well liquid surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional diagram of a device for dynamically monitoring the liquid level in an oil well.

[0014] Figure 2 The utility model is a diagram showing the internal structure of an oil well main body of an oil well liquid level dynamic monitoring device.

[0015] Figure 3 The utility model is a cross-sectional view of a monitoring tube of an oil well liquid level dynamic monitoring device.

[0016] Figure 4 The utility model is a circuit connection diagram of an oil well liquid level dynamic monitoring device.

[0017] 1. Oil well body; 2. Monitoring pipe; 3. Data receiving module; 4. Data conversion and analysis module; 5. Central processing unit; 6. Mounting block; 7. Screws; 8. Connecting hole; 9. Wellhead temperature sensor; 10. Liquid surface temperature sensor; 11. Internal temperature sensor; 12. Inflatable float; 13. Displacement sensor. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] according to Figure 1-4As shown: The utility model provides an oil well liquid level dynamic monitoring device: comprising an oil well body 1; a monitoring tube 2 is inserted into the oil well body 1, and the monitoring tube 2 is fixedly connected to the oil well body 1; a connecting hole 8 connected to the outside is opened on the monitoring tube 2; an inflatable float 12 is arranged in the monitoring tube 2, a liquid level temperature sensor 10 is fixedly connected below the inflatable float 12, and a displacement sensor 13 is fixedly connected above the inflatable float 12; a central processing unit 5 is arranged on the oil well body 1, and the central processing unit 5 is circuit-connected with the liquid level temperature sensor 10 and the displacement sensor 13.

[0020] The present application sets an inflatable float 12 in the monitoring tube 2, and utilizes the buoyancy of the inflatable float 12 to drive the liquid level temperature sensor 10 and the displacement sensor 13 for monitoring the liquid level to change dynamically in real time. The structure is simple and the operation is convenient, and the real-time dynamic monitoring of the liquid level in the oil well can be realized.

[0021] The oil well body 1 is provided with a mounting block 6 fixedly connected to the monitoring pipe 2, and the mounting block 6 is fixedly connected to the oil well body 1 by screws 7. The communicating holes 8 are provided on the side and bottom of the monitoring pipe 2.

[0022] The mounting block 6 is fixedly connected to the oil well body 1 by screws 7, so as to facilitate the disassembly of the monitoring pipe 2 and to perform maintenance and repair on various devices for liquid level monitoring.

[0023] A wellhead temperature sensor 9 is fixedly arranged at the top of the monitoring tube 2, and an internal temperature sensor 11 is fixedly arranged at the bottom of the monitoring tube 2. The central processor 5 includes a data receiving module 3 and a data conversion and analysis module 4; the displacement sensor 13, the liquid surface temperature sensor 10, the wellhead temperature sensor 9, and the internal temperature sensor 11 are all connected to the data receiving module 3 circuit; and the data conversion and analysis module 4 is connected to the data receiving module 3 circuit.

[0024] The wellhead temperature sensor 9 can monitor the temperature of the wellhead, and the internal temperature sensor 11 can monitor the temperature inside the oil well, and the two can be compared with the values ​​of the liquid surface temperature sensor 10 to achieve more accurate monitoring.

[0025] Principle of the utility model

[0026] Due to the existence of the connecting hole 8, the monitoring tube 2 is in a connected state with the outside world, so the liquid level in the monitoring tube 2 is consistent with the liquid level in the oil well body 1. When the liquid level in the oil well body 1 changes, the liquid level in the monitoring tube 2 also changes accordingly. Since the inflatable float 12 floats on the liquid surface, when the liquid level changes, the displacement sensor 13 and the liquid surface temperature sensor 10 can change in real time. Therefore, for the liquid surface temperature sensor 10, no matter how the liquid level changes, the liquid surface temperature sensor 10 is always located at the position of the liquid surface to monitor the temperature of the liquid surface; and for the displacement sensor 13, it can record its own displacement changes and transmit the change data to the data receiving module 3 in real time. After conversion by the data conversion and analysis module 4, it can form a real-time change state of the liquid level, which is very convenient.

[0027] In summary, the present application has a simple structure when dynamically monitoring the oil well liquid level. An inflatable float 12 is provided to utilize the buoyancy of the liquid surface to drive the displacement sensor 13 and the liquid surface temperature sensor 10 to dynamically change, thereby realizing dynamic monitoring of the oil well liquid level.

[0028] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A device for dynamically monitoring the liquid level in an oil well, comprising an oil well body (1); Features: A monitoring tube (2) is inserted into the oil well body (1), and the monitoring tube (2) is fixedly connected to the oil well body (1); a communication hole (8) communicating with the outside is opened on the monitoring tube (2); an inflatable float (12) is arranged in the monitoring tube (2), a liquid surface temperature sensor (10) is fixedly connected below the inflatable float (12), and a displacement sensor (13) is fixedly connected above the inflatable float (12); a central processing unit (5) is arranged on the oil well body (1), and the central processing unit (5) is connected to the liquid surface temperature sensor (10) and the displacement sensor (13) in circuit.

2. The oil well liquid level dynamic monitoring device according to claim 1, Features: The oil well body (1) is provided with a mounting block (6) fixedly connected to the monitoring pipe (2), and the mounting block (6) is fixedly connected to the oil well body (1) via screws (7).

3. The oil well liquid level dynamic monitoring device according to claim 1, Features: The communicating holes (8) are arranged on the side and bottom of the monitoring tube (2).

4. The oil well liquid level dynamic monitoring device according to claim 1, Features: A wellhead temperature sensor (9) is fixedly arranged on the top of the monitoring pipe (2), and an internal temperature sensor (11) is fixedly arranged on the bottom of the monitoring pipe (2).

5. The oil well liquid level dynamic monitoring device according to claim 1, Features: The central processing unit (5) comprises a data receiving module (3) and a data conversion analysis module (4); the displacement sensor (13), the liquid surface temperature sensor (10), the wellhead temperature sensor (9), and the internal temperature sensor (11) are all connected to the data receiving module (3) circuit; and the data conversion analysis module (4) is connected to the data receiving module (3) circuit.

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