Gas friction coefficient and pipe vibration monitoring system for underground gas storage wells

Abstract

The present invention provides a gas friction coefficient and pipe column vibration monitoring system for underground gas storage wells. The system includes: a monitoring terminal and a detection device, wherein the monitoring terminal includes a lower computer connected to the detection device via a data line; the detection device includes: a connecting branch pipe fixed at the upper and lower ends of the outer shell, a measuring straight pipe vertically fixedly connected in the outer shell, an air pressure sensor, a pressure difference sensor, a temperature and humidity sensor, and a wind speed sensor fixedly connected to the inner wall of the measuring straight pipe, and a vibration sensor fixed on the surface of the pipe column; the lower computer receives data sent by the air pressure sensor, the pressure difference sensor, the temperature and humidity sensor, the wind speed sensor, and the vibration sensor via the data line, and determines the gas friction coefficient and pipe column vibration information according to the data. The present invention facilitates direct use of the gas in the pipe column for detection, improves the accuracy of the detection device in detecting the gas friction coefficient, and the flexibility and convenience of using the monitoring device, and facilitates real-time monitoring of the vibration of the pipe column.

Description

Technical Field

[0001] The present invention relates to the technical field of underground gas storage horizontal well development, and in particular to a gas friction resistance coefficient and pipe column vibration monitoring system for underground gas storage wells. Background Art

[0002] Underground gas storage refers to the storage of natural gas in depleted gas or oil and gas reservoirs, porous aquifers, salt formations, and other underground structures. It is a relatively economical and safe method for storing large quantities of natural gas. Its primary function is to regulate seasonal imbalances in gas supply and demand, ensuring peak supply needs; to balance the operation of long-distance gas pipelines and equipment, thereby improving their utilization and reducing gas transmission costs; and to ensure gas supply in emergencies such as accidents. Using depleted oil and gas formations as gas storage generally requires no construction costs, allowing existing wells to be used for injection and production.

[0003] At present, most of the equipment for pipe column monitoring on the market uses a separate air intake device to detect gas, which cannot accurately reflect the movement state of gas in the pipe column, reducing the accuracy of detection. Due to the deep underground gas storage wells, it is not convenient to conduct detection in the wells. Data cables are mostly used to connect the detection devices for detection on the ground, which is affected by the cable length and inconvenient to operate. Summary of the Invention

[0004] In order to solve the problems of low detection accuracy and inconvenient operation in current pipe string monitoring, an embodiment of the present invention provides a gas friction resistance coefficient and pipe string vibration monitoring system for underground gas storage wells, the system comprising: a monitoring terminal and a detection device, the monitoring terminal comprising a lower computer, the lower computer being connected to the detection device via a data cable;

[0005] The detection device includes a housing, a connecting branch pipe, a measuring straight pipe, an air pressure sensor, a pressure difference sensor, a temperature and humidity sensor, a wind speed sensor, and a vibration sensor; the connecting branch pipe is fixed to the upper and lower ends of the housing, the measuring straight pipe is vertically fixedly connected to the housing, the air pressure sensor, pressure difference sensor, temperature and humidity sensor, and wind speed sensor are fixedly connected to the inner wall of the measuring straight pipe, and the vibration sensor is fixed to the surface of the pipe column;

[0006] The lower computer receives data sent by the air pressure sensor, pressure difference sensor, temperature and humidity sensor, wind speed sensor and vibration sensor through a data line, and determines the gas friction resistance coefficient and pipe string vibration information based on the data.

[0007] Optionally, in one embodiment of the present invention, the lower computer includes a data acquisition module, a wireless transmission module, a first processing module, a storage module and a power supply module; the data acquisition module receives data sent by the air pressure sensor, pressure difference sensor, temperature and humidity sensor, wind speed sensor and vibration sensor, and sends the data to the first processing module; the first processing module is used to determine the gas friction resistance coefficient and pipe column vibration information based on the data, and send the gas friction resistance coefficient and pipe column vibration information to the storage module for storage; the wireless transmission module is connected to the first processing module and transmits data through wireless communication; the power supply module is respectively connected to the data acquisition module, wireless transmission module, processing module and storage module.

[0008] Optionally, in one embodiment of the present invention, the monitoring terminal also includes a host computer, which communicates wirelessly with the wireless transmission module; the host computer includes a display module, a second processing module and an input module, and the input module is connected to the second processing module; the second processing module is used to process the data sent by the wireless transmission module and send the processed data to the display module for display.

[0009] Optionally, in one embodiment of the present invention, the connecting branch pipe and the pipe column are detachably connected via a flange.

[0010] Optionally, in one embodiment of the present invention, the lower computer is fixedly connected to the outer wall of the shell.

[0011] Optionally, in one embodiment of the present invention, a through hole is provided below the side wall of the shell.

[0012] Optionally, in one embodiment of the present invention, a cable groove is provided between the housing and the measuring straight tube.

[0013] Optionally, in one embodiment of the present invention, the data line is embedded in the cable groove and passes through the through hole to be connected to the lower computer.

[0014] Optionally, in one embodiment of the present invention, one end of the data cable is multi-headed, which is fixedly arranged on one side of the pressure difference sensor, temperature and humidity sensor, wind speed sensor and air pressure sensor, and the other end is connected to the lower computer.

[0015] Optionally, in one embodiment of the present invention, the differential pressure sensor, temperature and humidity sensor, wind speed sensor and air pressure sensor are fixed on the inner wall of the measuring straight tube in sequence from top to bottom.

[0016] The present invention provides a detection device on the side wall of the pipe string, which facilitates direct use of the gas in the pipe string for detection. The gas is detected by multiple sensors, which improves the accuracy of the detection device in detecting the gas friction coefficient, and improves the flexibility and convenience of using the monitoring device. By fixedly connecting a vibration sensor to the surface of the pipe string, the vibration of the pipe string can be conveniently monitored in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of a detection device for monitoring the gas friction resistance coefficient and pipe string vibration of an underground gas storage well according to an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the monitoring terminal structure of the underground gas storage well gas friction resistance coefficient and pipe string vibration monitoring system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0020] An embodiment of the present invention provides a system for monitoring the gas friction resistance coefficient and pipe string vibration of an underground gas storage well.

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] like Figure 1 FIG2 is a schematic diagram of the structure of a detection device for monitoring the gas friction coefficient and pipe string vibration of an underground gas storage well according to an embodiment of the present invention, which specifically includes: a monitoring terminal and a detection device, wherein the monitoring terminal includes a lower computer 5, and the lower computer 5 is connected to the detection device via a data line 3;

[0023] The detection device includes a housing 14, a connecting branch pipe 15, a measuring straight pipe 16, an air pressure sensor 17, a pressure difference sensor 18, a temperature and humidity sensor 19, a wind speed sensor 20, and a vibration sensor 21; the connecting branch pipe 15 is fixed to the upper and lower ends of the housing 14, the measuring straight pipe 16 is vertically fixedly connected to the housing 14, the air pressure sensor 17, the pressure difference sensor 18, the temperature and humidity sensor 19, and the wind speed sensor 20 are fixedly connected to the inner wall of the measuring straight pipe 16, and the vibration sensor 21 is fixed to the surface of the pipe string 100;

[0024] The lower computer 5 receives data sent by the air pressure sensor 17, the pressure difference sensor 18, the temperature and humidity sensor 19, the wind speed sensor 20 and the vibration sensor 21 through the data line 3, and determines the gas friction resistance coefficient and the string vibration information based on the data.

[0025] As an embodiment of the present invention, Figure 2 The figure shows a schematic diagram of the monitoring terminal structure of the gas friction coefficient and pipe string vibration monitoring system for underground gas storage wells according to an embodiment of the present invention. A lower computer 5 is connected to the detection device 2 via a data line 3 and includes a data acquisition module 9, a wireless transmission module 10, a first processing module 11, a storage module 12, and a power supply module 13. The data acquisition module receives data from the air pressure sensor, differential pressure sensor, temperature and humidity sensor, wind speed sensor, and vibration sensor, and sends the data to the first processing module. The first processing module is used to determine the gas friction coefficient and pipe string vibration information based on the data, and sends the gas friction coefficient and pipe string vibration information to the storage module for storage. The wireless transmission module is connected to the first processing module to transmit data via wireless communication. The power supply module is connected to the data acquisition module, wireless transmission module, processing module, and storage module, respectively.

[0026] In this embodiment, Figure 2 The monitoring terminal 1 shown in the figure also includes a host computer 4, which communicates wirelessly with the wireless transmission module 10; the host computer 4 includes a display module 7, a second processing module 6 and an input module 8, and the input module is connected to the second processing module; the second processing module is used to process the data sent by the wireless transmission module and send the processed data to the display module for display.

[0027] As an embodiment of the present invention, the connecting branch pipe and the pipe column are detachably connected via a flange 22 .

[0028] As an embodiment of the present invention, the lower computer is fixedly connected to the outer wall of the shell.

[0029] As an embodiment of the present invention, a through hole 23 is provided below the side wall of the housing.

[0030] In this embodiment, a cable groove 24 is provided between the housing and the measuring straight tube.

[0031] In this embodiment, the data line is embedded in the cable groove and passes through the through hole to be connected to the lower computer.

[0032] Among them, one end of the data line is multi-headed, which is fixedly arranged on one side of the pressure difference sensor, temperature and humidity sensor, wind speed sensor and air pressure sensor respectively, and the other end is connected to the lower computer.

[0033] As an embodiment of the present invention, the differential pressure sensor, temperature and humidity sensor, wind speed sensor and air pressure sensor are fixed on the inner wall of the measuring straight tube in sequence from top to bottom.

[0034] In a specific embodiment of the present invention, the data acquisition module is unidirectionally connected to the processing module, and the wireless transmission module and the storage module are bidirectionally connected to the processing module. The wireless transmission module is connected to the host computer through the Internet of Things.

[0035] In a specific embodiment of the present invention, Figure 1 In the figure, the detection device 2 is connected to the monitoring terminal 1 through a data line 3; the monitoring terminal 1 includes a host computer 4 and a slave computer 5, and the host computer 4 and the slave computer 5 are wirelessly connected through the Internet of Things. The host computer 4 includes a processing terminal 6, a display terminal 7 and an input terminal 8, and the display terminal 7 and the input terminal 8 are respectively connected to the processing terminal 6; the slave computer 5 includes a data acquisition module 9, a wireless transmission module 10, a processing module 11, a storage module 12 and a power supply module 13, and the power supply module 13 is respectively connected to the data acquisition module 9, the wireless transmission module 10, the processing module 11 and the storage module 12. The detection device 2 includes a housing 14, a connecting branch 15, a measuring straight tube 16, an air pressure sensor 17, a pressure difference sensor 18, a temperature and humidity sensor 19, a wind speed sensor 20, and a vibration sensor 21. The connecting branch 15 is fixed to the upper and lower ends of the housing 14, respectively. The housing 14 is fixedly connected to a vertically distributed measuring straight tube 16. The air pressure sensor 17, pressure difference sensor 18, temperature and humidity sensor 19, and wind speed sensor 20 are fixedly connected to the inner wall of the measuring straight tube 16. The vibration sensor 21 is fixed to the surface of the pipe string 100. The air pressure sensor 17, pressure difference sensor 18, temperature and humidity sensor 19, and wind speed sensor 20 detect and collect relevant data about the gas. The vibration sensor 21 collects vibration signals on the surface of the pipe string 100 and then transmits the signals to the data acquisition module 9 in the lower computer 5 via the data line 3, facilitating the processing module 12 to analyze and organize the information.

[0036] The connecting branch pipe 15 and the pipe column 100 are detachably connected via a flange 22 . By using the flange 22 to fix the connecting branch pipe 15 and the pipe column 100 , the disassembly and assembly of the detection device 2 is facilitated, thereby improving the recyclability of the detection device 2 .

[0037] The lower computer 5 is fixedly connected to the outer wall of the shell 14. A through hole 23 is provided below the side wall of the shell 14. By fixing the lower computer 5 to the outer wall of the shell 14, the detected data can be processed and stored in real time, which is convenient for the upper computer 4 to view and operate.

[0038] The differential pressure sensor 18, temperature and humidity sensor 19, wind speed sensor 20 and air pressure sensor 17 are fixed on the inner wall of the measuring straight tube 16 from top to bottom. By fixing the air pressure sensor 17 at the bottom of the measuring straight tube 16, it is convenient to detect the pressure when the gas enters. The temperature, humidity and wind speed of the gas are detected by the temperature and humidity sensor 19 and wind speed sensor 20 in the middle. By providing a differential pressure sensor 18 at the top of the measuring straight tube 16, it is convenient to detect the pressure difference of the gas after passing through the measuring straight tube 16.

[0039] The right side of the pressure difference sensor 18, the temperature and humidity sensor 19, the wind speed sensor 20 and the air pressure sensor 17 is fixedly connected with a data line 3, and the data line 3 is respectively connected to the data acquisition module 9 in the lower computer 5. The detection data of the pressure difference sensor 18, the temperature and humidity sensor 19, the wind speed sensor 20 and the air pressure sensor 17 are transmitted to the lower computer 5 through the data line 3 to avoid data loss and improve the accuracy of the detection data.

[0040] A cable groove 24 is provided between the outer shell 14 and the measuring straight tube 16. The data cable 3 is embedded in the cable groove 24 and passes through the through hole 23 to be connected to the lower computer 5. By providing a cable groove 24 between the outer shell 14 and the measuring straight tube 16, it is convenient to fix the data cable 3 and prevent the data cable 3 from being scattered and entangled.

[0041] The data acquisition module 9 is unidirectionally connected to the processing module 11, and the wireless transmission module 10 and the storage module 12 are bidirectionally connected to the processing module 11 respectively. By making the data acquisition module 9 and the processing module 11 unidirectionally connected, it is convenient for the processing module 11 to collect and organize the detection data. By making the wireless transmission module 10 and the storage module 12 bidirectionally connected to the processing module 11 respectively, it is convenient to store and transmit the detection data, thereby improving the convenience of the operation of the lower computer 5.

[0042] like Figure 2 As shown, the wireless transmission module 10 is connected to the host computer 4 through the Internet of Things. By connecting the wireless transmission module 10 to the host computer 4 through the Internet of Things, the convenience of using the detection device 2 is improved and the inconvenience caused by using cable connection is avoided.

[0043] The data acquisition module of the present invention is specifically an AmbiMate sensor module, the wireless transmission module is specifically a ZIGBEE wireless communication module, the air pressure sensor is specifically a CYYZ11 pressure sensor, the differential pressure sensor is specifically a YZ1301 differential pressure sensor, the temperature and humidity sensor is specifically an IPCSUN TD200 temperature and humidity sensor, the wind speed sensor is specifically a JY-GD680 wind speed sensor, and the vibration sensor is specifically a ZM-YB40 vibration sensor. The present invention provides a detection device 2 on the side wall of the pipe string 100, which is convenient for directly utilizing the gas in the pipe string 100 for detection. By detecting the gas through multiple sensors, the accuracy of the detection device 2 in detecting the gas friction coefficient is improved; by wirelessly connecting the upper computer 4 and the lower computer 5, the flexibility and convenience of using the monitoring device are improved; by fixedly connecting the vibration sensor 21 to the surface of the pipe string 100, the vibration of the pipe string 100 is convenient for real-time monitoring.

[0044] When the present invention is in use, the flanges 22 at both ends of the detection device 2 are connected to the flanges 22 on the surface of the pipe column 100, so that the gas in the pipe column 100 enters the measuring straight pipe 16 along the connecting branch pipe 15. After passing through the measuring straight pipe 16, the gas re-enters the pipe column 100. When measuring the friction coefficient of the gas, the gas passes through the measuring straight pipe 16, and the air pressure sensor 17, the wind speed sensor 20, the temperature and humidity sensor 19 and the pressure difference sensor 18 detect the gas in turn, and transmit the detection data to the data acquisition module 9 in the lower computer 5 through the data line 3. The temperature and humidity sensor 19 is installed in the measuring straight pipe 16 and is connected to the lower computer 5 for real-time observation of the temperature and humidity of the gas. Both ends of the measuring straight pipe 16 are connected to the lower computer 5. A pressure sensor 17 is installed and connected to the lower computer 5 for observing the gas pressure in real time. After the measured gas flows into the measuring straight tube 16, the temperature and humidity sensor 19 at the initial end of the measuring straight tube 16 records the test temperature of the measured gas in real time, and the data is output to the lower computer 5 for calculating the friction resistance coefficient of the measured gas. The processing module 11 then processes the data and stores it in the storage module 12. When the inspector uses the upper computer 4 to view it, it is connected to the lower computer 5 through the wireless Internet of Things. The lower computer 5 extracts the detection data from the storage module 12 and sends it to the upper computer 4 through the wireless transmission module 10. After the processing terminal 6 processes the data, it is displayed on the display terminal 7 for easy viewing by the inspector.

[0045] The present invention provides a detection device on the side wall of the pipe string, which facilitates direct use of the gas in the pipe string for detection. The gas is detected by multiple sensors, thereby improving the accuracy of the detection device in detecting the gas friction coefficient. The upper computer and the lower computer are connected wirelessly to improve the flexibility and convenience of using the monitoring device. The vibration sensor is fixedly connected to the surface of the pipe string, which facilitates real-time monitoring of the vibration of the pipe string.

[0046] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all points of view, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A gas friction coefficient and pipe string vibration monitoring system for underground gas storage wells, characterized in that: The system comprises: a monitoring terminal and a detection device, wherein the monitoring terminal comprises a lower computer, and the lower computer is connected to the detection device via a data line; The detection device comprises a housing, a connecting branch pipe, a measuring straight pipe, an air pressure sensor, a pressure difference sensor, a temperature and humidity sensor, a wind speed sensor and a vibration sensor; the connecting branch pipe is fixed at the upper and lower ends of the housing, the measuring straight pipe is vertically fixedly connected in the housing, the air pressure sensor, the pressure difference sensor, the temperature and humidity sensor and the wind speed sensor are fixedly connected to the inner wall of the measuring straight pipe, and the vibration sensor is fixed on the surface of the pipe column; The lower computer receives data sent by the air pressure sensor, the pressure difference sensor, the temperature and humidity sensor, the wind speed sensor and the vibration sensor through a data line, and determines the gas friction resistance coefficient and the string vibration information according to the data; The connecting branch pipe is detachably connected to the pipe column via a flange; a detection device is arranged on the side wall of the pipe column; and a through hole is arranged below the side wall of the shell.

2. The system according to claim 1, characterized in that The lower computer includes a data acquisition module, a wireless transmission module, a first processing module, a storage module and a power supply module; The data acquisition module receives data sent by the air pressure sensor, the pressure difference sensor, the temperature and humidity sensor, the wind speed sensor and the vibration sensor, and sends the data to the first processing module; The first processing module is used to determine the gas friction resistance coefficient and the pipe string vibration information according to the data, and send the gas friction resistance coefficient and the pipe string vibration information to the storage module for storage; The wireless transmission module is connected to the first processing module and transmits data via wireless communication; The power supply module is respectively connected with the data acquisition module, the wireless transmission module, the processing module and the storage module.

3. The system according to claim 2, characterized in that The monitoring terminal further includes a host computer, which performs wireless communication with the wireless transmission module; the host computer includes a display module, a second processing module and an input module, and the input module is connected to the second processing module; The second processing module is used to process the data sent by the wireless transmission module, and send the processed data to the display module for display.

4. The system according to claim 1, characterized in that The lower computer is fixedly connected to the outer side wall of the shell.

5. The system according to claim 1, characterized in that A wire arrangement groove is provided between the shell and the measuring straight tube.

6. The system according to claim 5, characterized in that The data line is embedded in the cable slot and passes through the through hole to be connected with the lower computer.

7. The system according to claim 6, characterized in that One end of the data line is multi-headed and is respectively fixedly arranged on one side of the pressure difference sensor, the temperature and humidity sensor, the wind speed sensor and the air pressure sensor, and the other end is connected to the lower computer.

8. The system according to claim 1, characterized in that The differential pressure sensor, temperature and humidity sensor, wind speed sensor and air pressure sensor are fixed on the inner wall of the measuring straight tube in sequence from top to bottom.

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