Carbon sequestration site monitoring method and device
By installing sensors around the carbon sequestration site to monitor and analyze CO2 concentration and migration data, the problem of inadequate detection of carbon dioxide sequestration leaks has been solved, enabling timely detection and prevention of potential leaks and ensuring the safety of carbon sequestration projects.
Patent Information
- Application Number
- CN202511347938.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-19
- Publication Date
- 2026-01-23
AI Technical Summary
Current technologies for detecting carbon dioxide sequestration leaks are not sufficiently advanced, and slow leaks can lead to large-scale leaks, impacting the ecological environment.
Multiple sensors are installed around the carbon sequestration site to acquire environmental quality data, ground deformation data, and background CO2 concentration values. CO2 concentration and migration data are monitored to calculate the effective CO2 storage capacity and leakage amount, and to assess the leakage risk.
It enables the timely detection and prevention of carbon dioxide leaks, ensuring the safety of carbon sequestration projects.
Smart Images
Figure CN121384124A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of carbon sequestration technology, and in particular to a method and apparatus for monitoring carbon sequestration sites. Background Technology
[0002] Carbon capture, utilization, and storage (CCUS) is a key technology for addressing global climate change. The mechanism of carbon dioxide enhanced oil recovery and storage (EOR) can effectively encapsulate carbon dioxide underground, representing one of the best examples of simultaneously achieving utilization and storage. The leakage and seepage of CO2 stored in geological formations is a critical issue for the safe operation of CCUS technology. Encapsulated CO2 underground has many potential leakage possibilities. Among these, CO2 may seep slowly along geological faults and fissures. If slow leakage is not controlled, it can evolve into large-scale, high-speed carbon dioxide leakage, causing damage to the integrity of the wellbore or pipeline. Large-scale carbon dioxide leakage will have a severe impact on the ecological environment.
[0003] Currently, the technology for detecting carbon dioxide sequestration leaks during the implementation of sequestration projects is not yet fully developed. Summary of the Invention
[0004] This application aims to at least partially address one of the technical problems in the related art.
[0005] Therefore, the first objective of this application is to propose a method for monitoring carbon sequestration sites.
[0006] The second objective of this application is to provide an apparatus.
[0007] The third objective of this application is to propose an electronic device.
[0008] The fourth objective of this application is to provide a computer-readable storage medium.
[0009] The fifth objective of this application is to provide a computer program product.
[0010] To achieve the above objectives, a first aspect of this application provides a method for monitoring carbon sequestration sites, comprising:
[0011] During the background monitoring phase, sensors are installed around the carbon sequestration site to obtain background data, which includes environmental quality data, ground deformation data, and CO2 concentration background values.
[0012] During the operational monitoring phase of injecting CO2 into the ground, the CO2 concentration on the surface and the CO2 migration data underground are monitored. The CO2 migration data includes the shape and area of CO2 plumes within the reservoir.
[0013] The effective CO2 storage capacity and CO2 leakage amount are calculated based on the CO2 migration data, and the CO2 leakage risk assessment results are obtained based on the CO2 leakage amount, CO2 concentration background value and the CO2 concentration on the ground.
[0014] Optionally, the environmental quality data includes: atmospheric environmental data, surface environmental data, and groundwater environmental data;
[0015] The step of setting up sensors around the carbon sequestration site to obtain background data includes:
[0016] A CO2 concentration sensor is installed in the atmosphere to monitor the CO2 concentration in the atmosphere as atmospheric environmental data.
[0017] Sensors are installed in the shallow soil layer to sample and analyze the soil to obtain surface environmental data, which includes: soil CO2 flux, soil moisture, and soil temperature.
[0018] Sensors are installed at the location of shallow groundwater to collect groundwater environmental data, which includes: water level, water temperature, pH value, conductivity, total dissolved solids, dissolved oxygen, and redox potential.
[0019] Optionally, the step of setting up sensors around the carbon sequestration site to obtain background data includes:
[0020] Angular reflection sensors are installed on the ground surface to collect ground deformation data;
[0021] A CO2 concentration sensor is installed on the ground surface to collect the background value of the CO2 concentration.
[0022] Optionally, the data on surface CO2 concentration and underground CO2 transport includes:
[0023] Electromagnetic monitoring data is obtained by conducting time-frequency electromagnetic monitoring underground.
[0024] Gravity monitoring is conducted underground to obtain underground density data;
[0025] Multiple seismic detectors are deployed in the monitoring well to collect seismic wave data;
[0026] The electromagnetic monitoring data, underground density data, and seismic wave data are analyzed and processed to obtain the CO2 migration data.
[0027] Optionally, calculating the effective CO2 storage capacity and CO2 leakage capacity based on the CO2 transport data includes:
[0028] The shape and area of the CO2 plume within the reservoir were analyzed to calculate the CO2 sequestration volume;
[0029] The effective storage capacity of CO2 is calculated based on the CO2 storage volume;
[0030] The CO2 leakage amount is calculated based on the CO2 injection amount and the effective CO2 storage amount.
[0031] Optionally, obtaining the CO2 leakage risk assessment result based on the CO2 leakage amount, the background CO2 concentration, and the CO2 concentration on the ground includes:
[0032] Calculate the difference between the CO2 concentration on the ground and the background CO2 concentration to obtain the increase in CO2;
[0033] The CO2 leakage amount and the CO2 increase amount are compared to determine the CO2 leakage risk assessment result.
[0034] Optionally, comparing the CO2 leakage amount and the CO2 increase amount to determine the CO2 leakage risk assessment result includes:
[0035] If the increase in CO2 exceeds a preset first threshold, the CO2 leakage risk assessment result is determined to be high risk.
[0036] If the increase in CO2 is less than or equal to a preset first threshold, and the amount of CO2 leakage is greater than a preset second threshold, then the CO2 leakage risk assessment result is determined to be medium risk.
[0037] If the increase in CO2 is less than or equal to a preset first threshold, and the amount of CO2 leakage is less than or equal to a preset second threshold, then the CO2 leakage risk assessment result is determined to be low risk.
[0038] To achieve the above objectives, a second aspect of this application provides a carbon sequestration site monitoring device, comprising:
[0039] The monitoring module is used to set up sensors around the carbon sequestration site to obtain background data during the background value monitoring phase. The background data includes environmental quality data, ground deformation data, and CO2 concentration background values.
[0040] The acquisition module is used to monitor the CO2 concentration on the surface and the CO2 migration data underground during the operational monitoring phase when CO2 is injected into the ground. The CO2 migration data includes the shape and area of CO2 plumes in the reservoir.
[0041] The analysis module is used to calculate the effective CO2 storage capacity and CO2 leakage capacity based on the CO2 migration data, and to obtain the CO2 leakage risk assessment results based on the CO2 leakage capacity, the background CO2 concentration, and the CO2 concentration on the ground.
[0042] To achieve the above objectives, a third aspect of this application provides an electronic device, including: a processor, and a memory communicatively connected to the processor;
[0043] The memory stores computer-executed instructions;
[0044] The processor executes computer execution instructions stored in the memory to implement the method as described in any one of the first aspects.
[0045] To achieve the above objectives, a fourth aspect of this application provides a computer-readable storage medium storing computer-executable instructions that, when executed by a processor, are used to implement the method as described in any one of the first aspects.
[0046] To achieve the above objectives, a fifth aspect of this application provides a computer program product that, when executed by a processor, implements the method described in any one of the first aspects.
[0047] The carbon sequestration site monitoring method, apparatus, electronic equipment, and storage medium provided in this application, by installing multiple sensors around the carbon sequestration site, can comprehensively acquire key information such as environmental quality data, ground deformation data, and background CO2 concentration values. This helps to promptly detect and prevent potential CO2 leaks, ensuring the safety of carbon sequestration projects.
[0048] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0049] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:
[0050] Figure 1 A schematic flowchart illustrating a carbon sequestration site monitoring method provided in an embodiment of this application;
[0051] Figure 2 This is a schematic diagram of a carbon sequestration site monitoring device provided in an embodiment of this application. Detailed Implementation
[0052] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0053] This application provides a method for monitoring carbon sequestration sites. Figure 1 This is a schematic flowchart illustrating a carbon sequestration site monitoring method provided in an embodiment of this application. Figure 1 As shown, the method includes the following steps:
[0054] Step 101: In the background monitoring stage, sensors are set up around the carbon sequestration site to obtain background data, wherein the background data includes environmental quality data, ground deformation data and CO2 concentration background value;
[0055] Step 102: During the operational monitoring phase of injecting CO2 into the underground, monitor the CO2 concentration on the surface and the CO2 migration data underground, wherein the CO2 migration data includes: the shape and area of CO2 plumes in the reservoir;
[0056] Step 103: Calculate the effective CO2 storage capacity and CO2 leakage capacity based on the CO2 migration data, and obtain the CO2 leakage risk assessment result based on the CO2 leakage capacity, CO2 concentration background value, and CO2 concentration on the ground.
[0057] Optionally, the environmental quality data includes: atmospheric environmental data, surface environmental data, and groundwater environmental data;
[0058] The step of setting up sensors around the carbon sequestration site to obtain background data includes:
[0059] A CO2 concentration sensor is installed in the atmosphere to monitor the CO2 concentration in the atmosphere as atmospheric environmental data.
[0060] Sensors are installed in the shallow soil layer to sample and analyze the soil to obtain surface environmental data, which includes: soil CO2 flux, soil moisture, and soil temperature.
[0061] Sensors are installed at the location of shallow groundwater to collect groundwater environmental data, which includes: water level, water temperature, pH value, conductivity, total dissolved solids, dissolved oxygen, and redox potential.
[0062] Optionally, the step of setting up sensors around the carbon sequestration site to obtain background data includes:
[0063] Angular reflection sensors are installed on the ground surface to collect ground deformation data;
[0064] A CO2 concentration sensor is installed on the ground surface to collect the background value of the CO2 concentration.
[0065] Optionally, the data on surface CO2 concentration and underground CO2 transport includes:
[0066] Electromagnetic monitoring data is obtained by conducting time-frequency electromagnetic monitoring underground.
[0067] Gravity monitoring is conducted underground to obtain underground density data;
[0068] Multiple seismic detectors are deployed in the monitoring well to collect seismic wave data;
[0069] The electromagnetic monitoring data, underground density data, and seismic wave data are analyzed and processed to obtain the CO2 migration data.
[0070] Optionally, calculating the effective CO2 storage capacity and CO2 leakage capacity based on the CO2 transport data includes:
[0071] The shape and area of the CO2 plume within the reservoir were analyzed to calculate the CO2 sequestration volume;
[0072] The effective storage capacity of CO2 is calculated based on the CO2 storage volume;
[0073] The CO2 leakage amount is calculated based on the CO2 injection amount and the effective CO2 storage amount.
[0074] Optionally, obtaining the CO2 leakage risk assessment result based on the CO2 leakage amount, the background CO2 concentration, and the CO2 concentration on the ground includes:
[0075] Calculate the difference between the CO2 concentration on the ground and the background CO2 concentration to obtain the increase in CO2;
[0076] The CO2 leakage amount and the CO2 increase amount are compared to determine the CO2 leakage risk assessment result.
[0077] Optionally, comparing the CO2 leakage amount and the CO2 increase amount to determine the CO2 leakage risk assessment result includes:
[0078] If the increase in CO2 exceeds a preset first threshold, the CO2 leakage risk assessment result is determined to be high risk.
[0079] If the increase in CO2 is less than or equal to a preset first threshold, and the amount of CO2 leakage is greater than a preset second threshold, then the CO2 leakage risk assessment result is determined to be medium risk.
[0080] If the increase in CO2 is less than or equal to a preset first threshold, and the amount of CO2 leakage is less than or equal to a preset second threshold, then the CO2 leakage risk assessment result is determined to be low risk.
[0081] To achieve the above embodiments, this application also proposes a carbon sequestration site monitoring device. Figure 2 This is a schematic diagram of a carbon sequestration site monitoring device provided in an embodiment of this application. Figure 2 As shown, the device includes:
[0082] The monitoring module 210 is used to set up sensors around the carbon sequestration site to obtain background data during the background value monitoring stage. The background data includes environmental quality data, ground deformation data and CO2 concentration background value.
[0083] The acquisition module 220 is used to monitor the CO2 concentration on the surface and the CO2 migration data underground during the operational monitoring phase when CO2 is injected into the ground. The CO2 migration data includes the shape and area of CO2 plumes in the reservoir.
[0084] The analysis module 230 is used to calculate the effective CO2 storage capacity and CO2 leakage capacity based on the CO2 migration data, and to obtain the CO2 leakage risk assessment result based on the CO2 leakage capacity, the background CO2 concentration value and the CO2 concentration on the ground.
[0085] To implement the above embodiments, this application also proposes an electronic device, including: a processor and a memory communicatively connected to the processor; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to implement the method provided in the foregoing embodiments.
[0086] To implement the above embodiments, this application also proposes a computer-readable storage medium storing computer-executable instructions, which, when executed by a processor, are used to implement the methods provided in the foregoing embodiments.
[0087] To implement the above embodiments, this application also proposes a computer program product, including a computer program that, when executed by a processor, implements the methods provided in the foregoing embodiments.
[0088] The collection, storage, use, processing, transmission, provision, and disclosure of user personal information involved in this application comply with relevant laws and regulations and do not violate public order and good morals.
[0089] It should be noted that personal information collected from users should be used for legitimate and reasonable purposes and should not be shared or sold outside of these legitimate uses. Furthermore, such collection / sharing should only be conducted after receiving the user's informed consent, including but not limited to notifying the user to read the user agreement / user notice and sign an agreement / authorization that includes authorization of relevant user information before the user uses the function. In addition, any necessary steps must be taken to protect and safeguard access to such personal information data and ensure that others with access to personal information data comply with their privacy policies and procedures.
[0090] This application is intended to provide an implementation scheme for users to selectively prevent the use or access to their personal information data. Specifically, this disclosure is intended to provide hardware and / or software to prevent or block access to such personal information data. Once personal information data is no longer needed, risks can be minimized by restricting data collection and deleting data. Furthermore, where applicable, such personal information is de-identified to protect user privacy.
[0091] In the foregoing descriptions of the embodiments, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0092] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0093] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.
[0094] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.
[0095] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.
[0096] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
[0097] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.
[0098] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.
Claims
1. A carbon sequestration site monitoring method, characterized by, The method comprises the following steps: In the background value monitoring stage, sensors are arranged around the carbon storage site to obtain background data, wherein the background data comprises environmental quality data, ground deformation data and CO2 concentration background value; In the operation period monitoring stage of injecting CO2 into the underground, the CO2 concentration on the ground and the CO2 migration data in the underground are monitored, wherein the CO2 migration data comprises the shape and area of the CO2 plume in the reservoir; The CO2 effective storage amount and the CO2 leakage amount are calculated according to the CO2 migration data, and the CO2 leakage risk assessment result is obtained by analyzing the CO2 leakage amount, the CO2 concentration background value and the CO2 concentration on the ground.
2. The method of claim 1, wherein, The environmental quality data comprises atmospheric environmental data, surface environmental data and underground water environmental data; The step of arranging sensors around the carbon storage site to obtain background data comprises: Arranging CO2 concentration sensors in the atmosphere to monitor the CO2 concentration in the atmosphere as the atmospheric environmental data; Arranging sensors in the shallow soil layer to sample and analyze the soil to obtain the surface environmental data, wherein the surface environmental data comprises soil CO2 flux, soil humidity and soil temperature; Arranging sensors at the position of the shallow underground water to collect the underground water environmental data, wherein the underground water environmental data comprises water level, water temperature, pH value, conductivity, total dissolved solids, dissolved oxygen amount and oxidation-reduction potential.
3. The method of claim 2, wherein, The step of arranging sensors around the carbon storage site to obtain background data comprises: Arranging corner reflector sensors on the ground to collect the ground deformation data; Arranging CO2 concentration sensors on the ground to collect the CO2 concentration background value.
4. The method of claim 3, wherein, The step of monitoring the CO2 concentration on the ground and the CO2 migration data in the underground comprises: Monitoring the underground by time-frequency electromagnetic monitoring to obtain electromagnetic monitoring data; Monitoring the underground by gravity monitoring to obtain underground density data; Arranging multiple seismic detectors in the monitoring well to collect seismic wave data; Analyzing and processing the electromagnetic monitoring data, the underground density data and the seismic wave data to obtain the CO2 migration data.
5. The method of claim 4, wherein, The step of calculating the CO2 effective storage amount and the CO2 leakage amount according to the CO2 migration data comprises: Analyzing and calculating the CO2 storage volume according to the shape and area of the CO2 plume in the reservoir; Calculating the CO2 effective storage amount according to the CO2 storage volume; Calculating the CO2 leakage amount according to the injection amount of CO2 and the CO2 effective storage amount.
6. The method of claim 5, wherein, The step of obtaining the CO2 leakage risk assessment result by analyzing the CO2 leakage amount, the CO2 concentration background value and the CO2 concentration on the ground comprises: Calculating the difference between the CO2 concentration on the ground and the CO2 concentration background value to obtain the CO2 increase amount; Comparing the CO2 leakage amount and the CO2 increase amount to determine the CO2 leakage risk assessment result.
7. The method of claim 6, wherein, The step of comparing the CO2 leakage amount and the CO2 increase amount to determine the CO2 leakage risk assessment result comprises: If the CO2 increase amount is greater than a preset first threshold value, it is determined that the CO2 leakage risk assessment result is high risk; If the CO2 increase amount is less than or equal to a preset first threshold value, and the CO2 leakage amount is greater than a preset second threshold value, it is determined that the CO2 leakage risk assessment result is medium risk. If the CO2 increase amount is less than or equal to a preset first threshold value, and the CO2 leakage amount is less than or equal to a preset second threshold value, it is determined that the CO2 leakage risk assessment result is low risk.
8. A carbon sequestration site monitoring apparatus, characterized by, The method comprises the steps of: monitoring modules for monitoring the background value monitoring stage, setting sensors around the carbon storage site to obtain background data, wherein the background data comprises environmental quality data, ground deformation data and CO2 concentration background value; acquisition modules for monitoring the CO2 concentration on the ground and the CO2 migration data underground during the operation period monitoring stage of injecting CO2 into the ground, wherein the CO2 migration data comprises the shape and area of the CO2 plume in the reservoir; analysis modules for calculating the CO2 effective storage amount and the CO2 leakage amount according to the CO2 migration data, and obtaining the CO2 leakage risk assessment result according to the CO2 leakage amount, the CO2 concentration background value and the CO2 concentration on the ground.
9. An electronic device, comprising: The method comprises the steps of: a processor, and a memory connected in communication with the processor; the memory stores computer execution instructions; the processor executes the computer execution instructions stored in the memory to realize the method according to any one of claims 1-7.
10. A computer-readable storage medium, characterized in that, The computer readable storage medium stores computer execution instructions, and the computer execution instructions are executed by the processor to realize the method according to any one of claims 1-7.