Method and device for determining injectable amount, storage medium and electronic equipment

Abstract

The embodiment of the invention provides a method and device for determining the injectable amount, a storage medium and electronic device.The method comprises the steps that the storage potential corresponding to a target area is calculated, and the actual filling effect corresponding to the target area is determined, the actual filling effect is used for indicating the proportion of carbon dioxide filled into the target area; and determining the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect. According to the method, the problem that the actual injectable amount of the target area cannot be determined before the target area is sealed in the related technology can be solved.

Description

Technical Field

[0001] The present application relates to the field of CO2 sequestration, and in particular, to a method and device for determining the injectable amount, a storage medium, and an electronic device. Background Art

[0002] Mineral sequestration is a technology that permanently stores carbon dioxide (CO2) or other greenhouse gases in underground minerals. The purpose of this technology is to combat global climate change by reducing greenhouse gas emissions in the atmosphere. Mineral sequestration technology is favored for its long-term stability and relatively low environmental risks. However, slow reaction rates and limitations in storage capacity are the main challenges currently faced. How to effectively determine the actual injectable amount corresponding to the current sequestration area before sequestration is an urgent problem to be solved.

[0003] In view of the problem in the related art that the actual injectable amount of the target area cannot be determined before sequestration of the target area, no effective solution has been proposed yet.

[0004] Therefore, it is necessary to improve the related technology to overcome the defects in the related technology. Summary of the Invention

[0005] Embodiments of the present application provide a method and device for determining the injectable amount, a storage medium, and an electronic device, so as to at least solve the problem in the related technology that the actual injectable amount of the target area cannot be determined before sequestration of the target area.

[0006] According to an embodiment of the present application, a method for determining the injectable amount is provided, including: calculating the sequestration potential corresponding to the target area, and determining the actual filling effect corresponding to the target area, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target area; determining the actual injectable amount of the target object in the target area according to the sequestration potential and the actual filling effect.

[0007] In an exemplary embodiment, calculating the sequestration potential corresponding to the target area includes: determining the mineralization filling rate of the target object in the target area and the first mass of the first substance generated after the mineralization of the target object, and measuring the porosity corresponding to the target object; calculating the sequestration potential corresponding to the target area according to the first formula, where the first formula is: Mmax is the sequestration potential, m is the first mass, j is the mineralization filling rate of the target object, is the porosity, and C is the equilibrium constant term.

[0008] In an exemplary embodiment, determining the mineralization filling rate of the target object in the target area includes: determining the target rock material of the target object; determining a rock sample of the target rock material and determining the chemical composition of the rock sample; calculating the theoretical mineralization amount of the rock sample according to the reaction equation of the chemical composition and carbon dioxide; and, after the chemical reaction between the rock sample and carbon dioxide, determining the experimental mineralization amount corresponding to the rock sample; determining the mineralization filling rate corresponding to the rock sample according to the theoretical mineralization amount and the experimental mineralization amount, and determining the mineralization filling rate corresponding to the rock sample as the mineralization filling rate corresponding to the target object.

[0009] In an exemplary embodiment, determining the mineralization filling rate of the target object in the target area and the first mass of the first substance generated after mineralization of the target object includes: determining the target rock material of the target object; determining a rock sample of the target rock material and determining the second mass of the rock sample; after the chemical reaction between the rock sample and the carbon dioxide, determining the third mass of the rock sample after the chemical reaction; and determining the first mass according to the difference between the second mass and the third mass.

[0010] In an exemplary embodiment, determining the actual filling effect corresponding to the target area includes: determining the formation connectivity porosity corresponding to the target object and the average effective mineralization reaction rate corresponding to the target object; determining the actual filling effect according to the second formula, where the second formula is: is the actual filling effect, is the formation connectivity porosity, is the average effective mineralization reaction rate.

[0011] In an exemplary embodiment, determining the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect includes: calculating the mineral replacement balance term corresponding to the target area; determining the actual injectable amount of the target object according to the third formula, where the third formula is: M tCO2 is the actual injectable amount, M max is the storage potential, r m is the mineral replacement balance term, is the actual filling effect, A inf is the influence coefficient of secondary minerals on primary pores, f sec is the secondary mineral pore filling correction factor.

[0012] According to another embodiment of the present application, there is provided a device for determining an injectable amount, including: a calculation module configured to calculate the storage potential corresponding to a target area and determine the actual filling effect corresponding to the target area, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target area; a determination module configured to determine the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect.

[0013] According to still another embodiment of the present application, there is also provided a computer-readable storage medium storing a computer program, where the computer program is configured to execute the steps in any one of the above method embodiments when running.

[0014] According to still another embodiment of the present application, there is also provided an electronic device including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0015] According to still another embodiment of the present application, there is also provided a computer program product including a computer program, where the computer program implements the steps in any one of the above method embodiments when executed by a processor.

[0016] Through the embodiments of the present application, the storage potential corresponding to the target area is calculated, and the actual filling effect corresponding to the target area for indicating the proportion of carbon dioxide filled into the target area is determined; the actual injectable amount of the target object in the target area is determined according to the storage potential and the actual filling effect. That is to say, in the embodiments of the present application, first, the storage potential of the target geological area is calculated, that is, the maximum amount of CO2 that can be stored in this area theoretically; second, the actual filling effect is determined, that is, the proportion of CO2 filled into the pores of the target area during actual operation. Combining the storage potential and the actual filling effect, the actual injectable amount of CO2 in the target area is further determined, that is, the specific feasible amount of CO2 storage after considering the actual limiting factors. Through the embodiments of the present application, the problem in the related art that the actual injectable amount of the target area cannot be determined before sealing the target area can be solved, and thus the waste of resources or insufficient sealing caused by the difference between theory and practice can be effectively avoided, and the overall effect of CO2 geological storage can be improved. Description of the Drawings

[0017] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a hardware structure block diagram of a computer terminal device for a method of determining an injectable amount according to an embodiment of the present application;

[0020] Figure 2 It is a flowchart of a method for determining an injectable amount according to an embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of a method for estimating the sequestration potential in the related art;

[0022] Figure 4 It is a schematic diagram of a method for calculating the actual injectable amount according to an alternative embodiment of the present application;

[0023] Figure 5 It is a structure block diagram of a device for determining an injectable amount according to an embodiment of the present application. Detailed implementation manners

[0024] In the following, the embodiments of the present application will be described in detail with reference to the drawings and in combination with the embodiments.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0026] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal device or a similar computing device. Taking the operation on a computer terminal device as an example, Figure 1 It is a hardware structure block diagram of a computer terminal device for a method of determining an injectable amount according to an embodiment of the present application. As Figure 1 shown, the computer terminal device may include one or more ( Figure 1 only one is shown in Figure 1 a processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. Among them, the above-mentioned computer terminal device may further include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand that Figure 1 the structure shown in Figure 1The different configurations shown.

[0027] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for determining the injectable amount in the embodiments of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implements the above-mentioned method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some instances, the memory 104 may further include a memory remotely disposed relative to the processor 102, and these remote memories can be connected to the computer terminal device through a network. Examples of the above-mentioned network include but are not limited to the Internet, enterprise intranets, local area networks, mobile communication networks, and combinations thereof.

[0028] The transmission device 106 is used to receive or send data via a network. Specific examples of the above-mentioned network may include a wireless network provided by a communication provider of a computer terminal device. In one instance, the transmission device 106 includes a network adapter (Network Interface Controller, abbreviated as NIC), which can be connected to other network devices through a base station and thus can communicate with the Internet. In one instance, the transmission device 106 can be a radio frequency (Radio Frequency, abbreviated as RF) module, which is used to communicate with the Internet wirelessly.

[0029] In this embodiment, a method for determining the injectable amount is provided. Figure 2 is a flowchart of the method for determining the injectable amount according to the embodiments of the present application, as Figure 2 shown, and the process includes the following steps:

[0030] Step S202, calculate the storage potential corresponding to the target area, and determine the actual filling effect corresponding to the target area, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target area;

[0031] Among them, the storage potential is the maximum amount of CO2 that can be stored in this area theoretically; the actual filling effect is the proportion of CO2 filled into the pores of the target area during actual operation. The calculation of the storage potential needs to comprehensively consider geological parameters, such as rock porosity and mineralization ability. The actual filling effect directly reflects the efficiency of the storage operation and is affected by actual conditions such as pore blockage.

[0032] Step S204, determine the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect.

[0033] Through the above steps, calculate the storage potential corresponding to the target area, and determine the actual filling effect corresponding to the target area for indicating the proportion of carbon dioxide filled into the target area; determine the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect. That is to say, in the embodiments of the present application, first, calculate the storage potential of the target geological area, that is, the maximum amount of CO2 that can be stored in this area theoretically; second, determine the actual filling effect, that is, the proportion of CO2 filled into the pores of the target area during actual operation. Combining the storage potential and the actual filling effect, further determine the actual injectable amount of CO2 in the target area, that is, the specific feasible amount of CO2 storage after considering the actual limiting factors. Through the embodiments of the present application, it is possible to solve the problem in the related art that the actual injectable amount of the target area cannot be determined before the target area is sealed, and thus it is possible to effectively avoid resource waste or insufficient storage caused by the difference between theory and practice, and improve the overall effect of CO2 geological storage.

[0034] Optionally, calculating the storage potential corresponding to the target area in step S202 includes: determining the mineralization filling rate of the target object in the target area and the first mass of the first substance generated after the mineralization of the target object, and measuring the porosity corresponding to the target object; calculating the storage potential corresponding to the target area according to the first formula, where the first formula is: M max is the storage potential, m is the first mass, j is the mineralization filling rate of the target object, is the porosity, and C is the equilibrium constant term.

[0035] It can be understood that the method for calculating the CO2 geological storage potential includes:

[0036] Determine the mineralization filling rate and the first mass of the first substance: The mineralization filling rate refers to the proportion of minerals in the target rock that can chemically react with CO2 and solidify. The first mass of the first substance refers to the total mass of carbonate minerals generated by these minerals after the mineralization reaction. This process usually requires geochemical analysis to determine the types and amounts of minerals that can participate in the reaction in the rock and evaluate their efficiency in converting into carbonate minerals.

[0037] Measure the porosity: The porosity is the ratio of the pore volume in the rock to its total volume, and is a key parameter determining the CO2 storage capacity. The porosity data of the rock in the target area can be obtained through core analysis or geophysical methods, which is directly related to the injectable volume of CO2.

[0038] Equilibrium constant term: The equilibrium constant term reflects the degree of equilibrium of the chemical reaction between CO2 and rock minerals. Under different temperature and pressure conditions, the value of the equilibrium constant term varies. This parameter can be obtained through thermodynamic calculations or experimental measurements, and it affects the mineralization conversion rate and reaction completeness of CO2.

[0039] Applying the first formula to calculate the storage potential. Substituting the above parameters into the first formula, the maximum storage potential corresponding to the target area can be calculated. The first formula comprehensively considers the carbon sequestration capacity and pore volume of the rock, as well as the chemical equilibrium state of the reaction, thus providing a theoretical upper limit for the CO2 storage volume.

[0040] Through the above steps, the geological storage potential of the target area can be systematically evaluated, providing a scientific basis for the preliminary site selection and scale planning of CO2 storage projects. This method takes into account the efficiency of chemical reactions and the limitations of geological conditions, making the calculation of storage potential closer to reality and helping to improve the feasibility and economy of CO2 geological storage projects.

[0041] Optionally, determining the mineralization filling rate of the target object in the target area in step S202 includes: determining the target rock material of the target object; determining a rock sample of the target rock material and determining the chemical composition of the rock sample; calculating the theoretical mineralization amount of the rock sample according to the chemical reaction equation of the chemical composition and carbon dioxide; and, after the chemical reaction between the rock sample and carbon dioxide, determining the experimental mineralization amount corresponding to the rock sample; determining the mineralization filling rate corresponding to the rock sample according to the theoretical mineralization amount and the experimental mineralization amount, and determining the mineralization filling rate corresponding to the rock sample as the mineralization filling rate corresponding to the target object.

[0042] It can be understood that the steps for determining the mineralization filling rate of the rock material in the target area include:

[0043] Determining the target rock material: First, it is necessary to clarify the rock type in the target area, because different rocks have different mineral compositions and chemical properties, which directly affect their reaction ability and efficiency with CO2. For example: basalt.

[0044] Determining the rock sample and analyzing the chemical composition: Collect rock samples from the target area and conduct a detailed chemical composition analysis of the samples through technical means such as X-ray diffraction (XRD), electron probe microanalysis (EPMA), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS) to determine the types and contents of minerals that can react with CO2 in the rock.

[0045] Calculation of theoretical mineralization amount: Based on the chemical composition of rock samples and known chemical equations of the reaction between CO2 and minerals, calculate the maximum mineralization amount under ideal conditions. The above steps involve determining the theoretical mass of carbonate minerals formed when the minerals participating in the reaction react completely with CO2.

[0046] Conduct chemical reaction experiments: Under laboratory conditions, bring CO2 into contact with rock samples to simulate the chemical reaction process in the geological sequestration environment, and determine the amount of carbonate minerals actually formed in the rock samples after the reaction, that is, the experimental mineralization amount.

[0047] Calculate the mineralization filling rate: Compare the theoretical mineralization amount with the experimental mineralization amount, and calculate the mineralization filling rate of the rock samples. The mineralization filling rate is the ratio of the experimental mineralization amount to the theoretical mineralization amount, indicating the degree to which the reactive minerals in the rock are actually mineralized.

[0048] Apply to the target object: Finally, apply the mineralization filling rate measured in the laboratory to the rocks in the target area as an indicator to evaluate the mineralization potential of the entire area. This step assumes that the reaction efficiency under laboratory conditions can represent the efficiency under actual geological conditions.

[0049] Through the above technical solutions, the CO2 mineralization ability of the target rock can be scientifically evaluated, providing important parameters for the design of geological sequestration projects. The determination of the mineralization filling rate not only considers the chemical properties of the rock but also verifies the actual reaction efficiency through experiments, thus providing a more accurate and reliable evaluation method for the geological sequestration of CO2. This evaluation method helps to optimize the CO2 injection strategy and ensure the efficiency and safety of the sequestration process.

[0050] Among them, determining the mineralization filling rate of the target object in the target area and the first mass of the first substance generated after the mineralization of the target object includes: determining the target rock material of the target object; determining a rock sample of the target rock material and determining the second mass of the rock sample; after the chemical reaction between the rock sample and the carbon dioxide, determining the third mass of the rock sample after the chemical reaction; and determining the first mass according to the difference between the second mass and the third mass.

[0051] It can be understood that the substance participating in the CO2 mineralization reaction (the first mass) in the rock sample can be determined by the mass difference method. Specifically:

[0052] Determine the target rock material: It is necessary to identify the rock types in the target area, which is crucial for subsequent analysis and experiments because different rock types have different mineral compositions and reactivities, directly affecting the CO2 mineralization efficiency.

[0053] Select rock samples and measure the second mass: Select representative samples from the target rock, conduct precise mass measurements, and record the original mass (second mass) of the rock samples before the reaction.

[0054] Conduct the CO2 mineralization reaction experiment: Place the selected rock samples in an environment containing CO2 to simulate the chemical reactions under geological sequestration conditions. During this process, CO2 reacts with certain minerals in the rock to form carbonate minerals, and the mass of these minerals changes before and after the reaction.

[0055] Measure the third mass of the rock samples after the reaction: After the experiment, measure the mass of the rock samples again. At this time, the total mass of the rock samples after the reaction (third mass) is obtained. Due to the conversion of some minerals into carbonate minerals, the total mass of the rock samples may change.

[0056] Calculate the first mass: By comparing the mass changes of the rock samples before and after the reaction (i.e., the difference between the second mass and the third mass), the mass change of the minerals participating in the CO2 mineralization reaction can be determined, which is the first mass. This is actually the reduction in the mass of the minerals in the rock that can react with CO2 and solidify, and is converted into carbonate minerals.

[0057] The above technical solution determines the mass of the minerals participating in the CO2 mineralization reaction by directly measuring the mass difference of the rock samples before and after the reaction, thereby providing a direct way to quantify the mineralization potential of the rock. This method is simple and direct, avoiding complex chemical analysis, and can accurately reflect the mineralization reaction efficiency of the rock samples under specific conditions.

[0058] Optionally, determining the actual filling effect corresponding to the target area in step S202 includes: determining the formation connected porosity corresponding to the target object and the average effective mineralization reaction rate corresponding to the target object; determining the actual filling effect according to the second formula, where the second formula is: is the actual filling effect, is the formation connected porosity, is the average effective mineralization reaction rate.

[0059] It can be understood that the method for determining the actual filling effect in CO2 geological sequestration includes:

[0060] Determine the formation connected porosity: The formation connected porosity refers to the proportion of the pore volume in the formation that can be interconnected and allow fluids (such as CO2) to flow to the total volume of the formation. The existence of connected pores is a prerequisite for CO2 to be injected into the formation, so its size directly affects the injectable amount of CO2. The determination of the formation connected porosity is usually based on core analysis, seismic data analysis, or direct on-site testing.

[0061] Determine the average effective reaction rate of mineralization: The average effective reaction rate of mineralization refers to the average efficiency of the mineralization reaction between CO2 and rock minerals in the rock formation. It takes into account factors such as the chemical reactivity of the rock, the diffusion ability of CO2, and the temperature and pressure in the geological environment. The level of the average effective reaction rate of mineralization determines the amount of minerals in the rock that can react with CO2 and be solidified, thus affecting the CO2 sequestration efficiency.

[0062] Apply the second formula to calculate the actual filling effect: Using the above two parameters, the second formula is used to calculate the actual filling effect. The second formula combines the connected porosity of the rock formation and the average effective reaction rate of mineralization, reflecting the degree to which CO2 is actually filled into the rock formation and mineralized and sequestered. The higher the actual filling effect, the better the CO2 sequestration efficiency in the rock formation.

[0063] The calculation of the actual filling effect provides key data for the planning and implementation of geological sequestration projects. The connected porosity of the rock formation determines the pore space that CO2 can penetrate and fill, while the average effective reaction rate of mineralization reflects the efficiency of the reaction between CO2 and the rock in these pores. Combining these two parameters can evaluate the actual sequestration potential of CO2 under specific geological conditions, helping decision-makers optimize sequestration strategies and improve the success rate and environmental benefits of sequestration projects. Through the embodiments of the present application, the retention ratio of CO2 after sequestration can be predicted more accurately, ensuring the safety and effectiveness of sequestration operations.

[0064] Optionally, determining the actual injectable amount of the target object in the target area according to the sequestration potential and the actual filling effect in step S204 includes: calculating the mineral replacement balance term corresponding to the target area; determining the actual injectable amount of the target object according to the third formula, where the third formula is: M tCO2 is the actual injectable amount, M max is the sequestration potential, r m is the mineral replacement balance term, is the actual filling effect, A inf is the influence coefficient of secondary minerals on primary pores, f sec is the correction factor for secondary mineral pore filling.

[0065] It can be understood that the steps of calculating the actual injectable amount of CO2 in the target area are divided into two parts: determining the mineral replacement balance term and applying the third formula to calculate the actual injectable amount. Specifically:

[0066] Calculating the mineral replacement equilibrium term: The mineral replacement equilibrium term is a key parameter affecting the efficiency of CO2 conversion into carbonate minerals in chemical reactions. It reflects the state when the reaction between CO2 and rock minerals reaches chemical equilibrium under specific geological conditions (such as temperature, pressure, and fluid composition). The calculation of the mineral replacement equilibrium term is usually based on thermodynamic principles, considering the changes in Gibbs free energy of reactants and products, the chemical reaction path, and the influence of environmental factors. This parameter is crucial for accurately evaluating the completeness and efficiency of the mineralization reaction, thus affecting the CO2 sequestration potential.

[0067] Applying the third formula to calculate the actual injectable amount: By substituting the sequestration potential, mineral replacement equilibrium term, actual filling effect, influence coefficient of secondary minerals on primary pores, and secondary mineral pore filling correction factor into the third formula, the actual amount of CO2 that can be injected into the target area can be calculated.

[0068] The sequestration potential is the theoretical maximum CO2 sequestration amount, reflecting the geological conditions and chemical reaction potential of the target area. The actual filling effect is calculated based on the connected porosity of the rock formation and the average effective reaction rate of mineralization, indicating the efficiency of CO2 filling into the rock formation under actual conditions. The influence coefficient of secondary minerals on primary pores and the secondary mineral pore filling correction factor consider the influence of secondary minerals generated during the geological reaction on the porosity of the rock formation and the limitation of these secondary minerals on the CO2 filling ability. These coefficients are usually determined through experimental data and geological models.

[0069] The application of the third formula comprehensively considers the geological conditions of the target area, the chemical reaction efficiency, and the influence of secondary minerals, providing a scientific basis for the preliminary evaluation of CO2 geological sequestration projects. By calculating the actual injectable amount, the injection amount of CO2 can be predicted and planned more accurately, ensuring that the sequestration project achieves the maximum sequestration benefit while meeting safety and environmental requirements.

[0070] To better understand the process of the above method for determining the injectable amount, the following further describes the implementation method flow of the determination of the injectable amount in combination with optional embodiments, but it is not used to limit the technical solutions of the embodiments of the present application.

[0071] Mineralization sequestration is a technology that permanently stores carbon dioxide (CO2) or other greenhouse gases in underground minerals. The purpose of this technology is to combat global climate change by reducing greenhouse gas emissions in the atmosphere. Mineralization sequestration technology is favored for its long-term stability and relatively low environmental risks. However, slow reaction rates and limitations in storage capacity are the main challenges currently faced.

[0072] Figure 3 It is a schematic diagram of the sequestration potential estimation method of related technologies, such as Figure 3As shown in the figure, the methods for calculating the sequestration potential in the related art include: the unit mineralization method, the mineral replacement method, and the pore filling method. Among them:

[0073] The principle of the unit mineralization method is: the equal-scale scaling of the existing sequestration assessment; the influencing factors are: the selection of unit parameters and the volume measurement; the advantage is: directly measuring the unit sequestration amount in the sequestration area; however, the unit mineralization method has the following deficiencies: it requires indoor experimental measurement, and the assessment difficulty and cost are high.

[0074] The principle of the mineral replacement method is: the mass replacement of basalt and mineralization products; the influencing factors are: the selection of products, the volume measurement, and the density acquisition; the advantage is: making assumptions through the mineral content, and it is convenient to obtain parameters; however, the mineral replacement method has the following deficiencies: the research on the sequestration coefficient is insufficient and it does not conform to the actual formation.

[0075] The principle of the pore filling method is: the mass replacement with CO2 after the pores of basalt are filled with products; the influencing factors are: the acquisition of basalt pores, the volume measurement, and the density acquisition; the advantage is: constructing a formula through the pores of the rock formation, and it is less difficult to obtain parameters; however, the pore filling method has the following deficiencies: the actual formation limiting factors are not fully considered, and the results are relatively large.

[0076] Therefore, how to effectively determine the corresponding sequestration potential of the current sequestration area before sequestration is an urgent problem to be solved.

[0077] An optional embodiment of the present application proposes a formula calculation method for mineralization sequestration potential. Specifically:

[0078] Figure 4 It is a schematic diagram of the calculation method of the actual injectable amount according to an optional embodiment of the present application, as Figure 4 shown:

[0079] 1. Estimation of the maximum potential (i.e., sequestration potential):

[0080] Estimate the maximum potential through Among them, M max is the maximum potential, m is the mass of carbonate generated by the mineralization of basalt (i.e., the first mass), j is the mineralization filling rate, is the porosity of basalt, and C is the equilibrium constant term

[0081] 2. Determine the actual filling effect:

[0082] Determine the actual filling effect through Determine the actual filling effect. is the actual filling effect, is the connected porosity of the rock formation, is the average effective reaction rate of mineralization

[0083] 3. Determine the actual injectable amount:

[0084] By determining the actual injectable amount M. tCO2 where M is the actual injectable amount, r m is the mineral replacement balance term, A inf is the influence coefficient of secondary minerals on primary pores, f sec is the correction factor for pore filling of secondary minerals.

[0085] That is, the optional embodiment of the present application defines the estimation of the maximum potential corresponding to the current mineralization region according to the porosity of basalt, the preset equilibrium constant term, the mineralization filling rate, and the mass of carbonate generated by basalt mineralization; that is, to determine the percentage of carbon dioxide that can be converted and stored in the current basalt region. Determine the actual filling effect according to the average effective reaction rate of mineralization and the connected porosity of the rock formation, that is, the proportion of carbon dioxide filled; comprehensively evaluate the actual injectable amount of basalt in the current storage region based on the above maximum potential estimation and actual filling effect.

[0086] Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes several instructions for causing a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in various embodiments of the present application.

[0087] In this embodiment, a device for determining the injectable amount is also provided. This device is used to implement the above embodiments and preferred implementation manners, and those that have been described will not be repeated. As used below, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0088] Figure 5 is a structural block diagram of a device for determining the injectable amount according to an embodiment of the present application. As Figure 5 shown, the device includes:

[0089] A calculation module 52, configured to calculate the storage potential corresponding to the target region and determine the actual filling effect corresponding to the target region, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target region;

[0090] A determination module 54, configured to determine an actual injectable amount of a target object in the target area according to the storage potential and the actual filling effect.

[0091] With the above device, calculate the storage potential corresponding to the target area, and determine the actual filling effect corresponding to the target area for indicating the proportion of carbon dioxide filled into the target area; determine the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect. That is to say, in the embodiments of the present application, first, calculate the storage potential of the target geological area, that is, the maximum amount of CO2 that can be stored in this area theoretically; second, determine the actual filling effect, that is, the proportion of CO2 filled into the pores of the target area during actual operation. Combining the storage potential and the actual filling effect, further determine the actual injectable amount of CO2 in the target area, that is, the specific feasible amount of CO2 storage after considering the actual limiting factors. Through the embodiments of the present application, the problem in the related art that the actual injectable amount of the target area cannot be determined before sealing the target area can be solved, and thus the resource waste or insufficient storage caused by the difference between theory and reality can be effectively avoided, and the overall effect of CO2 geological storage can be improved.

[0092] In an exemplary embodiment, the calculation module 52 is further configured to determine the mineralization filling rate of the target object in the target area and the first mass of the first substance generated after the mineralization of the target object, and measure the porosity corresponding to the target object; calculate the storage potential corresponding to the target area according to the first formula, where the first formula is: M max is the storage potential, m is the first mass, j is the mineralization filling rate of the target object, is the porosity, and C is the equilibrium constant term.

[0093] In an exemplary embodiment, the calculation module 52 is further configured to determine the target rock material of the target object; determine a rock sample of the target rock material, and determine the chemical composition of the rock sample; calculate the theoretical mineralization amount of the rock sample according to the chemical reaction equation of the chemical composition and carbon dioxide; and, after the chemical reaction between the rock sample and carbon dioxide, determine the experimental mineralization amount corresponding to the rock sample; determine the mineralization filling rate corresponding to the rock sample according to the theoretical mineralization amount and the experimental mineralization amount, and determine the mineralization filling rate corresponding to the rock sample as the mineralization filling rate corresponding to the target object.

[0094] In an exemplary embodiment, the computing module 52 is further configured to determine the target rock material of the target object; determine a rock sample of the target rock material and determine a second mass of the rock sample; after the rock sample undergoes a chemical reaction with the carbon dioxide, determine a third mass of the rock sample after the chemical reaction; and determine the first mass according to the difference between the second mass and the third mass.

[0095] In an exemplary embodiment, the computing module 52 is further configured to determine the formation connected porosity corresponding to the target object and the mineralization average effective reaction rate corresponding to the target object; and determine the actual filling effect according to a second formula, where the second formula is: is the actual filling effect, is the formation connected porosity, is the mineralization average effective reaction rate.

[0096] In an exemplary embodiment, the determining module 54 is further configured to calculate a mineral replacement balance term corresponding to the target area; and determine the actual injectable amount of the target object according to a third formula, where the third formula is: M tCO2 is the actual injectable amount, M max is the storage potential, r m is the mineral replacement balance term, is the actual filling effect, A inf is the influence coefficient of secondary minerals on primary pores, f sec is the secondary mineral pore filling correction factor.

[0097] It should be noted that the above-mentioned respective modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited thereto: all the above-mentioned modules are located in the same processor; or, the above-mentioned respective modules are located in different processors in any combined form.

[0098] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, and the computer program is configured to execute the steps in any one of the above method embodiments when running.

[0099] Optionally, in this embodiment, the above storage medium can be configured to store program codes for executing the following steps:

[0100] S1, calculate the storage potential corresponding to the target area, and determine the actual filling effect corresponding to the target area, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target area;

[0101] S2. Determine the actual injectable amount of the target object in the target area based on the storage potential and the actual filling effect.

[0102] In an exemplary embodiment, the above computer-readable storage medium may include, but is not limited to: various media such as USB flash drives, read-only memories (ROM), random access memories (RAM), mobile hard disks, magnetic disks, or optical discs that can store computer programs.

[0103] An embodiment of the present application also provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0104] In an exemplary embodiment, the above electronic device may further include a transmission device and an input / output device. Among them, the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0105] Optionally, in this embodiment, the above processor may be configured to execute the following steps through a computer program:

[0106] S1. Calculate the storage potential corresponding to the target area and determine the actual filling effect corresponding to the target area, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target area;

[0107] S2. Determine the actual injectable amount of the target object in the target area based on the storage potential and the actual filling effect.

[0108] An embodiment of the present application also provides a computer program product. The above computer program product includes a computer program, and when the computer program is executed by a processor, it implements the steps in any one of the above method embodiments.

[0109] An embodiment of the present application also provides another computer program product, including a non-volatile computer-readable storage medium. The non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements the steps in any one of the above method embodiments.

[0110] An embodiment of the present application also provides a computer program. The computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the steps in any one of the above method embodiments.

[0111] Optionally, in this embodiment, the above-mentioned processor may be configured to perform the following steps by a computer program:

[0112] S1. Calculate the storage potential corresponding to the target area, and determine the actual filling effect corresponding to the target area, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target area;

[0113] S2. Determine the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect.

[0114] Specific examples in this embodiment may refer to the examples described in the above embodiments and exemplary embodiments, and will not be elaborated herein.

[0115] Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present application can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. They can be implemented by program codes executable by the computing device. Thus, they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order than here, or they can be separately made into individual integrated circuit modules, or multiple modules or steps among them can be made into a single integrated circuit module to implement. In this way, the present application is not limited to any specific combination of hardware and software.

[0116] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining an injectable amount, characterized in that, Including: Calculating the storage potential corresponding to the target area and determining the actual filling effect corresponding to the target area, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target area; Determining the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect.

2. The method according to claim 1, wherein Calculating the storage potential corresponding to the target area includes: Determining the mineralization filling rate of the target object in the target area, the first mass of the first substance generated after the mineralization of the target object, and measuring the porosity corresponding to the target object; Calculate the storage potential corresponding to the target area according to the first formula, where the first formula is: M max is the storage potential, m is the first mass, j is the mineralization filling rate of the target object, is the porosity, and C is the equilibrium constant term.

3. The method according to claim 2, wherein Determining the mineralization filling rate of the target object in the target area includes: Determining the target rock material of the target object; Determining a rock sample of the target rock material and determining the chemical composition of the rock sample; Calculating the theoretical mineralization amount of the rock sample according to the chemical reaction equation of the chemical composition and carbon dioxide; and, after the chemical reaction between the rock sample and carbon dioxide, determining the experimental mineralization amount corresponding to the rock sample; Determining the mineralization filling rate corresponding to the rock sample according to the theoretical mineralization amount and the experimental mineralization amount, and determining the mineralization filling rate corresponding to the rock sample as the mineralization filling rate corresponding to the target object.

4. The method according to claim 2, wherein Determining the mineralization filling rate of the target object in the target area and the first mass of the first substance generated after the mineralization of the target object includes: Determining the target rock material of the target object; Determining a rock sample of the target rock material and determining the second mass of the rock sample; After the chemical reaction between the rock sample and the carbon dioxide, determining the third mass of the rock sample after the chemical reaction; Determining the first mass according to the difference between the second mass and the third mass.

5. The method according to claim 1, characterized in that Determining the actual filling effect corresponding to the target area includes: Determining the formation connected porosity corresponding to the target object and the average effective reaction rate of mineralization corresponding to the target object; Determine the actual filling effect according to the second formula, where the second formula is: is the actual filling effect, is the connected porosity of the rock formation, is the average effective reaction rate of mineralization.

6. The method according to claim 1, characterized in that, Determining the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect includes: Calculating the mineral replacement balance term corresponding to the target area; Determine the actual injectable amount of the target object according to the third formula, where the third formula is: M tCO2 is the actual injectable amount, M max is the sequestration potential, r m is the mineral replacement balance term, is the actual filling effect, A inf is the influence coefficient of secondary minerals on primary pores, f sec is the secondary mineral pore filling correction factor.

7. A device for determining an injectable amount, characterized in that, Including: A calculation module for calculating the storage potential corresponding to the target area and determining the actual filling effect corresponding to the target area, where the actual filling effect is used to indicate the proportion of carbon dioxide filled into the target area; A determination module for determining the actual injectable amount of the target object in the target area according to the storage potential and the actual filling effect.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, where the program, when running, executes the method according to any one of claims 1 to 6.

9. An electronic device, comprising a memory and a processor, characterized in that, A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 6 through the computer program.

10. A computer program product, comprising a computer program, characterized in that, The computer program is executed by the processor to perform the steps of the method according to any one of claims 1 to 6.

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