Deep underground space in-situ storage test platform integrating multi-source measurement and control technology

Abstract

The present invention discloses an in-situ material storage test platform for deep underground space integrating multi-source measurement and control technology, which relates to the field of deep earth science and engineering technology, including a mine wall, and also includes: the underground space of the mine wall is excavated to form a cavern; a sensing optical fiber is arranged on the wall surface of the surrounding rock of the cavern to monitor the pressure and temperature changes of the surrounding rock during the storage process; a monitoring hole is opened on the outer side of the cavern, and a high-density electrical monitoring component is arranged in the monitoring hole, a sealing plate is arranged on the hole of the cavern, a control module is arranged on one side of the sealing plate, and a monitoring module is arranged on one side of the control module, an oil guide port and a water guide port are arranged on the sealing plate, a liquid level meter is fixedly connected to one side of the sealing plate, and a pressure injection head is arranged on the sealing plate, and the surrounding rock and environment are monitored and controlled in real time during the storage process of the deep underground space through the high-density electrical monitoring component combined with the monitoring module and the control module, so as to obtain the long-term action mechanism of material storage in the surrounding rock underground space and ensure the safety and stability of the storage environment.

Description

Technical Field

[0001] The present invention relates to the field of deep earth science and engineering technology, and specifically to a deep underground space in-situ material storage test platform integrating multi-source measurement and control technology. Background Art

[0002] At present, deep underground space storage technology faces the following technical difficulties: complex surrounding rock transformation behavior: during the storage process, the physical and chemical properties of the surrounding rock will change, resulting in a decrease in the stability of the surrounding rock, making it difficult to maintain the safety of the storage environment for a long time; insufficient monitoring means: existing monitoring technology cannot achieve real-time monitoring of key parameters such as surrounding rock pressure, temperature, and humidity, making it difficult to accurately evaluate the transformation behavior of the surrounding rock; lack of control means: during the storage process, there is a lack of effective control means to maintain the pressure, temperature and humidity in the cavern, resulting in an unstable storage environment and prone to safety accidents.

[0003] To solve the above problems, there is an urgent need for an in-situ storage test platform for deep underground space that can integrate multi-source measurement and control technologies to achieve real-time monitoring and control of the surrounding rock and environment during the storage process, ensuring the safety and stability of the storage environment. Summary of the Invention

[0004] In order to overcome the shortcomings of the existing technology, the purpose of the present invention is to provide an in-situ material storage test platform for deep underground space that integrates multi-source measurement and control technology. By integrating multi-source measurement and control technology, real-time monitoring and control of the surrounding rock and environment during the storage process in deep underground space is realized, so as to solve the problem of difficult monitoring and control in the existing technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An in-situ material storage test platform for deep underground space integrating multi-source measurement and control technology includes a mine wall, and also includes: the underground space of the mine wall is excavated to form a cavern; sensing optical fibers are distributedly arranged on the rock wall of the cavern for real-time monitoring of pressure and temperature changes of the surrounding rock during the storage process; monitoring holes are opened on the outside of the cavern, and high-density electrical monitoring components are arranged in the monitoring holes for long-term monitoring of the transformation and changes of the surrounding rock during the storage process; a sealing plate is arranged on the hole entrance of the cavern, a sampling head is arranged on the sealing plate, a control module is arranged on one side of the sealing plate, a monitoring module is arranged on one side of the control module, an oil guide port and a water guide port are arranged on the sealing plate, a liquid level meter is fixedly connected to one side of the sealing plate, and a pressure injection head is fixedly arranged on the sealing plate on one side of the liquid level meter.

[0007] As a preferred technical solution of the present invention, the sensing optical fiber is distributed and fixed on the surrounding rock wall by gluing, and is used to monitor the pressure and temperature changes of the surrounding rock during the storage process in real time, and transmit the data to an external monitoring system.

[0008] As a preferred technical solution of the present invention, there are multiple monitoring holes, which are evenly arranged in the left, right and top directions of the cavern.

[0009] As a preferred technical solution of the present invention, the high-density electrical monitoring component includes a carbon fiber rod arranged in the monitoring hole, and a detection electrode is set on the outer wall of one end of the carbon fiber rod. The detection electrode extends into the monitoring hole through the carbon fiber rod and is in close contact with the surrounding rock.

[0010] As a preferred technical solution of the present invention, the sealing plate is a high-strength transparent acrylic plate.

[0011] As a preferred technical solution of the present invention, a temperature monitor and a pressure monitor are arranged in the cave chamber on one side of the monitoring module, and the signal input ends of the temperature monitor and the pressure monitor are respectively connected to the sensing lines. Pressure sensors and temperature sensors are respectively fixed on both sides of the sealing plate, and the pressure sensors and the temperature sensors are connected to the pressure monitor and the temperature monitor through sensing lines.

[0012] As a preferred technical solution of the present invention, the oil and water guide ports are used to detect the permeability of the reservoir surrounding rock by injecting oil and water, and to adjust the pressure and environmental parameters in the cavern through an external control system.

[0013] As a preferred technical solution of the present invention, the injection head is used to inject inert gas to detect the tightness of the reservoir surrounding rock, and the oil guide port and water guide port on the sealing plate are both provided with oil exchange pipes and water exchange pipes.

[0014] As a preferred technical solution of the present invention, the monitoring module is used to collect real-time pressure, temperature, humidity and tightness data of the surrounding rock during the storage process through sensing optical fiber, high-density electrical monitoring components, pressure monitors and temperature monitors; the control module is used to adjust the pressure, temperature and humidity in the cavern through the oil change pipe and injection nozzle to ensure the stability of the storage environment.

[0015] As a preferred technical solution of the present invention, the monitoring module and the control module are connected to the external control system via wireless or wired means. The external control system can display the monitoring data in real time and automatically or manually adjust the environmental parameters in the cave according to preset parameters.

[0016] This invention offers the following benefits: Real-time monitoring of surrounding rock and environmental parameters: Using distributed sensing fibers, high-density electrical monitoring components, temperature monitors, and pressure monitors, it is possible to monitor changes in surrounding rock pressure, temperature, humidity, and resistivity during storage, providing comprehensive data support. The monitoring module transmits this data to an external control system for real-time display and analysis, helping researchers accurately assess surrounding rock transformation behavior.

[0017] Precisely control the storage environment: The oil and water exchange pipes and injection head in the control module precisely regulate the pressure, temperature, and humidity within the cavern, ensuring the stability of the storage environment. An external control system automatically or manually generates control commands based on monitoring data, enabling intelligent control of the storage environment.

[0018] Improved storage safety: High-density electrical monitoring components and distributed sensing fibers can promptly detect surrounding rock deformation and crack expansion, preventing leaks and collapses during storage. The placement of injection heads, oil and water inlets effectively monitors the tightness and permeability of the surrounding rock, ensuring a safe storage environment.

[0019] Applicable to various storage scenarios: This platform is not only suitable for storing energy sources such as crude oil and natural gas, but can also be used to store materials such as grain and industrial solid waste, showing broad application prospects. By integrating multi-source measurement and control technologies, it can adapt to the needs of different storage scenarios and provide flexible monitoring and control solutions.

[0020] Reduce development and operation and maintenance costs: Through real-time monitoring and precise control, it can reduce resource waste and safety accidents in the storage process, and reduce development and operation and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the external structure of the deep underground space in-situ material storage test platform that integrates multi-source measurement and control technology.

[0022] Figure 2 Schematic diagram of the internal structure of the deep underground space in-situ material storage test platform that integrates multi-source measurement and control technology.

[0023] Figure 3 This is a schematic diagram of the front structure of the deep underground space in-situ material storage test platform that integrates multi-source measurement and control technology.

[0024] Figure 4 This is a schematic diagram of the side cross-section structure of the deep underground space in-situ material storage test platform that integrates multi-source measurement and control technology.

[0025] Figure 5 This is a flow chart of the monitoring module in the deep underground space in-situ storage test platform that integrates multi-source measurement and control technology.

[0026] In the figure: 1. Mine wall; 2. Cavern; 3. Monitoring module; 4. Monitoring hole; 5. Carbon fiber rod; 6. Liquid level gauge; 7. Pressure monitor; 8. Sensing optical fiber; 9. Sensing line; 10. Temperature monitor; 11. Sampling head; 12. Sealing plate; 13. Detection electrode; 14. Oil guide port; 15. Water guide port; 16. Oil exchange pipe; 17. Water exchange pipe; 18. Pressure sensor; 19. Temperature sensor; 20. Injection head; 21. Control module. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Example 1, please refer to Figure 1-Figure 5 , a deep underground space in-situ material storage test platform integrating multi-source measurement and control technology, includes a mine wall 1, and also includes: the underground space of the mine wall 1 is excavated to form a cavern 2; the surrounding rock wall of the cavern 2 is distributed and fixedly provided with sensing optical fibers 8 for real-time monitoring of the pressure and temperature changes of the surrounding rock during the storage process; monitoring holes 4 are opened on the outside of the cavern 2, and high-density electrical monitoring components are set in the monitoring holes 4 for long-term monitoring of the transformation and changes of the surrounding rock during the storage process; a sealing plate 12 is set on the hole of the cavern 2, a sampling head 11 is set on the sealing plate 12, a control module 21 is set on one side of the sealing plate 12, and a monitoring module 3 is set on one side of the control module 21; an oil guide port 14 and a water guide port 15 are opened on the sealing plate 12, a liquid level meter 6 is fixedly connected to one side of the sealing plate 12, and a pressure injection head 20 is fixedly set on the sealing plate 12 on the side of the liquid level meter 6;

[0029] By combining the high-density electrical monitoring component with the monitoring module 3 and the control module 21, real-time monitoring and control of the surrounding rock and environment during storage in deep underground spaces can be achieved to ensure the safety and stability of the storage environment.

[0030] Example 2, please refer to Figure 1-Figure 5 The sensing optical fiber 8 is distributed and fixed on the surrounding rock wall by gluing, and is used to monitor the pressure and temperature changes of the surrounding rock during the storage process in real time, and transmit the data to the external monitoring system; the number of the monitoring holes 4 is multiple, and they are evenly arranged in the left, right and upper directions of the cavern 2; the high-density electrical monitoring assembly includes a carbon fiber rod 5 arranged in the monitoring hole 4, and a detection electrode 13 is provided on the outer wall of one end of the carbon fiber rod 5. The detection electrode 13 extends into the monitoring hole 4 through the carbon fiber rod 5 and is in close contact with the surrounding rock; the number of the monitoring holes 4 is preferably set to 9, which are arranged in the left, right and upper directions of the cavern 2, with 3 monitoring holes 4 arranged in each direction;

[0031] Actual detection principle: The high-density electrical method is based on the resistivity method. By injecting current into the underground medium, measuring the voltage distribution, and calculating the resistivity of the underground medium. Different media have different resistivities. The resistivities of rock, water, and gas vary greatly. The properties and structure of the underground medium can be inferred by changes in resistivity. Multiple detection electrodes 13 are arranged in the monitoring hole 4. Resistivity data is obtained by current injection and voltage measurement between the detection electrodes 13. By changing the arrangement of the electrodes and the measurement mode, the resistivity distribution of different depths and ranges can be obtained; the electrodes are in close contact with the surrounding rock to ensure that the current can be effectively injected into the underground medium.

[0032] Current is injected into the surrounding rock through the electrodes, and the voltage is measured at other detection electrodes 13. The resistivity of the surrounding rock is calculated based on the distribution of current and voltage. High-density electrical resistivity instruments collect resistivity data, generating resistivity profiles or three-dimensional resistivity models to analyze the physical properties and changes in the surrounding rock. Resistivity distribution maps can be used to analyze the structure, cracks, and water content of the surrounding rock. Changes in resistivity can be used to infer the tightness and permeability of the surrounding rock.

[0033] The sealing plate 12 is a high-strength transparent acrylic plate. The high-strength transparent acrylic plate has high pressure resistance and transparency, can withstand the high-pressure environment in the cave chamber 2, and allows the storage conditions in the cave to be observed from the outside.

[0034] A fixed temperature monitor 10 and a pressure monitor 7 are set in the cavern 2 on one side of the monitoring module 3. The signal input ends of the temperature monitor 10 and the pressure monitor 7 are connected to the sensing line 9 respectively. A pressure sensor 18 and a temperature sensor 19 are fixedly set on both sides of the sealing plate 12 respectively. The pressure sensor 18 and the temperature sensor 19 are connected to the pressure monitor 7 and the temperature monitor 10 through the sensing line 9.

[0035] The oil inlet 14 and the water inlet 15 are used to detect the permeability of the reservoir surrounding rock by injecting oil and water, and to adjust the pressure and environmental parameters in the cavern 2 through an external control system; the injection head 20 is used to inject inert gas to detect the tightness of the reservoir surrounding rock, and the oil inlet 14 and the water inlet 15 on the sealing plate 12 are both provided with an oil exchange pipe 16 and a water exchange pipe 17.

[0036] The monitoring module 3 is used to collect the pressure, temperature, humidity and tightness data of the surrounding rock during the storage process in real time through the sensing optical fiber 8, high-density electrical monitoring components, pressure monitor 7 and temperature monitor 10; the control module 21 is used to adjust the pressure, temperature and humidity in the cavern 2 through the oil change pipe 16 and the injection pressure nozzle to ensure the stability of the storage environment.

[0037] The monitoring module 3 and the control module 21 are connected to an external control system via wireless or wired means. The external control system can display monitoring data in real time and automatically or manually adjust the environmental parameters in the cavern 2 according to preset parameters.

[0038] Cavern 2 Structure and Monitoring Module 3: Within cavern 2, formed by excavation of the underground mine, sensing fibers 8 are distributed across the surrounding rock walls to monitor pressure and temperature changes in the surrounding rock during storage. These fibers are adhesively bonded to the surrounding rock walls and transmit data to monitoring module 3.

[0039] Nine high-density electrical monitoring holes 4 are drilled one meter around the cavern 2. Each monitoring hole 4 is equipped with a carbon fiber rod 5 and a detection electrode 13. The detection electrode 13 extends through the carbon fiber rod 5 into the monitoring hole 4, making close contact with the surrounding rock. This allows for long-term monitoring of changes in the surrounding rock's resistivity, with the data transmitted to the monitoring module 3.

[0040] A temperature monitor 10 and a pressure monitor 7 are provided in the cavern 2 for real-time monitoring of temperature and pressure changes in the cavern 2. A pressure sensor 18 and a temperature sensor 19 are provided on the sealing plate 12 and connected to the monitoring module 3 via a sensing line 9.

[0041] Control module 21: The sealing plate 12 is provided with an oil inlet 14 and a water inlet 15. Oil and water are injected through the oil exchange pipe 16 and the water exchange pipe 17 to test the permeability of the reservoir surrounding rock. The pressure and humidity in the cavern 2 are adjusted through the external control system. The sealing plate 12 is provided with a pressure injection head 20 for injecting inert gas, testing the tightness of the reservoir surrounding rock, and adjusting the pressure in the cavern 2 through the external control system.

[0042] External Control System: Monitoring module 3 connects to an external control system via wireless or wired connections, transmitting real-time monitoring data including pressure, temperature, humidity, and resistivity. The external control system analyzes the monitoring data, generates reports on surrounding rock transformation behavior, and automatically or manually generates control instructions based on preset parameters. These instructions are executed by control module 21, which regulates the pressure, temperature, and humidity within cavern 2 to ensure a stable storage environment.

[0043] Storage Process: During the storage process, distributed sensing fibers 8 and high-density electrical monitoring components monitor changes in surrounding rock pressure, temperature, and resistivity in real time, enabling timely detection of deformation and crack expansion. Temperature monitors 10 and pressure monitors 7 monitor temperature and pressure changes within cavern 2 in real time to ensure the stability of the storage environment. The oil inlet 14, water inlet 15, and injection head 20 regulate pressure, temperature, and humidity within cavern 2 to ensure a safe storage environment.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A deep underground space in-situ storage test platform integrating multi-source measurement and control technology, comprising a mine wall (1), characterized in that: Also includes: The underground space of the mine wall (1) is excavated to form a cavern (2); sensing optical fibers (8) are distributedly arranged on the surrounding rock wall of the cavern (2) for real-time monitoring of pressure and temperature changes of the reservoir surrounding rock during storage; monitoring holes (4) are opened on the outer side of the cavern (2), and high-density electrical monitoring components are arranged in the monitoring holes (4) for long-term monitoring of the transformation and changes of the surrounding rock during storage; a sealing plate (12) is arranged on the hole opening of the cavern (2), and a sampling head (11) is arranged on the sealing plate (12). ) is provided on one side of the control module (21), and a monitoring module (3) is provided on one side of the control module (21); an oil guide port (14) and a water guide port (15) are provided on the sealing plate (12) for injecting oil or water to simulate leakage of liquid storage to detect the permeability and sealing of the surrounding rock; one side of the sealing plate (12) is fixedly connected to a liquid level measuring meter (6), and a pressure injection head (20) is fixedly provided on the sealing plate (12) on one side of the liquid level measuring meter (6) for injecting inert gas to increase the storage pressure, accelerate the storage process, and detect the sealing of the reservoir at the same time; Specially made corrosion-resistant flexible sensing optical fiber (8) is fixed to the wall of the reservoir surrounding rock by distributed bonding, and is used to monitor the stress-strain of the reservoir surrounding rock and the thermal effect of the storage process in real time, and transmit the data to the external monitoring system; The number of the monitoring holes (4) is multiple and evenly arranged in the left, right and upper directions of the cavern (2), and is used to monitor the transformation process of the reservoir surrounding rock by the rock geochemistry during the storage process, the change of the storage performance of the reservoir surrounding rock, the softening of the surrounding rock caused by the change of the mineral composition of the reservoir surrounding rock, and the change of the permeability of the surrounding rock caused by the formation of seepage channels due to the dissolution of minerals; The high-density electrical monitoring assembly comprises a carbon fiber rod (5) disposed in a monitoring hole (4), a detection electrode (13) being disposed on the outer wall of one end of the carbon fiber rod (5), and the detection electrode (13) extending into the monitoring hole (4) through the carbon fiber rod (5) and in close contact with the surrounding rock.

2. The deep underground space in-situ storage test platform integrating multi-source measurement and control technology according to claim 1 is characterized in that: The sealing plate (12) is a high-strength transparent acrylic plate, and is used for visually observing the internal changes of the surrounding rock cave storage area.

3. The deep underground space in-situ storage test platform integrating multi-source measurement and control technology according to claim 2 is characterized in that: A temperature monitor (10) and a pressure monitor (7) are provided in the cavern (2) on one side of the monitoring module (3); the signal input ends of the temperature monitor (10) and the pressure monitor (7) are connected to the sensing wires (9), respectively; a pressure sensor (18) and a temperature sensor (19) are fixedly provided on both sides of the sealing plate (12), respectively; the pressure sensor (18) and the temperature sensor (19) are connected to the pressure monitor (7) and the temperature monitor (10) via the sensing wires (9).

4. The deep underground space in-situ storage test platform integrating multi-source measurement and control technology according to claim 3 is characterized in that: The oil inlet (14) and the water inlet (15) are used to detect the permeability and tightness of the reservoir surrounding rock by injecting oil and water, and to adjust the pressure and environmental parameters in the cavern (2) through an external control system.

5. The deep underground space in-situ storage test platform integrating multi-source measurement and control technology according to claim 4 is characterized in that: The injection head (20) is used to inject inert gas, increase the storage pressure, accelerate the material storage process, and detect the tightness of the reservoir surrounding rock. The oil guide port (14) and the water guide port (15) on the sealing plate (12) are both provided with an oil exchange pipe (16) and a water exchange pipe (17).

6. The deep underground space in-situ storage test platform integrating multi-source measurement and control technology according to claim 5 is characterized in that: The monitoring module (3) is used to collect the pressure, temperature, humidity and tightness data of the surrounding rock during the storage process in real time through the sensing optical fiber (8), the high-density electrical monitoring component, the pressure monitor (7) and the temperature monitor (10); The control module (21) is used to adjust the pressure, temperature and humidity in the cavern (2) through the oil change pipe (16) and the injection nozzle to ensure the stability of the storage environment.

7. The deep underground space in-situ storage test platform integrating multi-source measurement and control technology according to claim 6 is characterized in that: The monitoring module (3) and the control module (21) are connected to an external control system via wireless or wired means. The external control system can display monitoring data in real time and automatically or manually adjust the environmental parameters in the cavern (2) according to preset parameters, thereby obtaining the environmental evolution and change mechanism during the storage process of surrounding rocks in deep reservoirs under complex conditions, and providing a decision-making basis for the functionality and suitability of underground space storage and long-term safety control.

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