Method, device, electronic device and storage medium for calculating absolute content of geothermal gas

Abstract

The present application discloses a method, device, electronic device and storage medium for calculating the absolute content of geothermal gas, the method comprising: obtaining the relative content of geothermal gas; determining the gas partial pressure corresponding to the relative content; determining the Henry constant corresponding to the geothermal gas; and calculating the absolute content of geothermal gas according to the gas partial pressure and the Henry constant. The present application can calculate the absolute content of geothermal gas according to the relative content of geothermal gas, provide a data basis for studying the material evolution and energy evolution of the earth's surface and interior, can be applied to fields such as geothermal gas dating methods, and can be widely applied to the field of geothermal resource technology.

Description

Technical Field

[0001] The present application relates to the field of geothermal resource technology, and in particular to a method, device, electronic device and storage medium for calculating the absolute content of geothermal gas. Background Art

[0002] Geothermal gas is an information window for understanding the evolution of matter and energy on the surface and inside of the earth. In terms of geothermal resource exploitation, the gas component content and isotopic composition are less affected by shallow processes, and are often used as tracers, thermometers and dating methods to reveal the heat source of the geothermal system, the nature of the reservoir, the source and evolution of geothermal fluids, and to determine the temperature of deep heat reservoirs, the depth of geothermal water circulation and the age of geothermal water. However, at present, in the process of collecting geothermal gas, hot springs or geothermal wells are degassed near the surface, and the gas obtained by the drainage gas collection method is usually free gas. The measured geothermal gas content is relative volume percentage (vol.%), that is, relative content, lacking the absolute content of geothermal gas (cm 3 STP gH2O -1 ), which in turn limits the application of geothermal gas dating methods. Summary of the invention

[0003] The main purpose of the embodiments of the present application is to provide a method, device, electronic device and storage medium for calculating the absolute content of geothermal gas to obtain the absolute content of geothermal gas.

[0004] To achieve the above purpose, one aspect of an embodiment of the present application provides a method for calculating the absolute content of geothermal gas, the method comprising:

[0005] Obtain the relative content of geothermal gases;

[0006] Determining the gas partial pressure corresponding to the relative content;

[0007] determining a Henry's constant corresponding to the geothermal gas;

[0008] The absolute content of the geothermal gas is calculated based on the gas partial pressure and the Henry constant.

[0009] In some embodiments, obtaining the relative content of geothermal gas includes:

[0010] The relative content of the components of the sampled gas is measured using a mass spectrometer to obtain the relative content of the geothermal gas.

[0011] In some embodiments, determining the gas partial pressure corresponding to the relative content includes:

[0012] The relative content is multiplied by the total atmospheric pressure at the sampling point of the geothermal gas, and the multiplication result is used as the gas partial pressure.

[0013] In some embodiments, determining the Henry constant corresponding to the geothermal gas comprises:

[0014] Calculate the Henry constant corresponding to the geothermal gas according to the Benson coefficient;

[0015] The calculation formula of the Henry constant is:

[0016]

[0017] Among them, H CP is the Henry constant corresponding to geothermal gas, β is the Benson coefficient, R is the gas constant, and T0 is the standard temperature under standard conditions;

[0018] The calculation formula of the Benson coefficient is:

[0019] lnβ=A1+A2(100 / T)+A3 ln(T / 100)+S‰[B1+B2(100 / T)+B3 ln(T / 100) 2 ];

[0020] Wherein, T is the temperature of geothermal water, S is the salinity of the geothermal water, and A1, A2, A3, B1, B2, and B3 are all constants used to calculate the Benson constant.

[0021] In some embodiments, calculating the absolute content of the geothermal gas according to the gas partial pressure and the Henry constant includes:

[0022] Calculating the absolute content of the geothermal gas according to a gas absolute content calculation formula;

[0023] The absolute gas content calculation formula is:

[0024]

[0025] Wherein, C is the absolute content of the geothermal gas, H CP is the Henry constant corresponding to geothermal gas, P i is the partial pressure of the gas, R is the gas constant, T0 is the standard temperature under standard conditions, and P0 is the standard pressure under standard conditions.

[0026] In some embodiments, the method further comprises:

[0027] Acquiring groundwater reserves in a thermal reservoir; wherein the geothermal gas is collected from the thermal reservoir;

[0028] The groundwater reserves are multiplied by the absolute content of the geothermal gas, and the multiplication result is used as the geothermal associated gas resource amount of the thermal reservoir.

[0029] In some embodiments, obtaining the groundwater reserves in the thermal reservoir includes:

[0030] The thickness of the heat reservoir, the distribution area of ​​the geothermal zone and the porosity of the heat reservoir rock are multiplied, and the multiplication result is used as the groundwater reserve in the heat reservoir.

[0031] To achieve the above-mentioned purpose, another aspect of the embodiment of the present application provides a device for calculating the absolute content of geothermal gas, the device comprising:

[0032] A relative content acquisition unit, used to acquire the relative content of geothermal gas;

[0033] A gas partial pressure determination unit, used to determine the gas partial pressure corresponding to the relative content;

[0034] A Henry constant determination unit, used to determine the Henry constant corresponding to the geothermal gas;

[0035] The absolute content calculation unit is used to calculate the absolute content of the geothermal gas according to the gas partial pressure and the Henry constant.

[0036] To achieve the above objective, another aspect of an embodiment of the present application provides an electronic device, the electronic device comprising a memory and a processor, the memory storing a computer program, and the processor implementing the above method when executing the computer program.

[0037] To achieve the above objective, another aspect of an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program implements the above method when executed by a processor.

[0038] The embodiments of the present application include at least the following beneficial effects:

[0039] This application obtains the relative content of geothermal gas; determines the gas partial pressure corresponding to the relative content; determines the Henry constant corresponding to the geothermal gas; and calculates the absolute content of geothermal gas based on the gas partial pressure and Henry constant. This application can calculate the absolute content of geothermal gas based on the relative content of geothermal gas, providing a data basis for studying the material evolution and energy evolution of the earth's surface and interior, and can be applied to fields such as geothermal gas dating methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic flow chart of a method for calculating the absolute content of geothermal gas provided in an embodiment of the present application;

[0041] Figure 2 An example diagram of a scene for collecting geothermal gas provided in an embodiment of the present application;

[0042] Figure 3A groundwater reserve distribution map of a thermal reservoir provided in an embodiment of the present application;

[0043] Figure 4 A schematic diagram of the structure of a device for calculating the absolute content of geothermal gas provided in an embodiment of the present application;

[0044] Figure 5 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of the present application. They are only examples of devices and methods consistent with some aspects of the embodiments of the present application as detailed in the attached claims.

[0046] It is understood that the terms "first", "second", etc. used in this application can be used to describe various concepts in this article, but unless otherwise specified, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another concept. For example, without departing from the scope of the embodiment of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the words "if" and "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determination".

[0047] The terms "at least one", "multiple", "each", "any", etc. used in this application, at least one includes one, two or more, multiple includes two or more, each refers to each of the corresponding multiple, and any refers to any one of the multiple.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0049] Before describing the embodiments of the present application in detail, some related technologies involved in the embodiments of the present application are first described as follows:

[0050] Geothermal gas is an information window for understanding the evolution of matter and energy on the surface and inside of the earth. In terms of geothermal resource exploitation, the gas component content and isotopic composition are less affected by shallow processes, and are often used as tracers, thermometers and dating methods to reveal the heat source of geothermal heat, the nature of the reservoir, the source and evolution of geothermal fluids, and to determine the temperature of deep heat reservoirs, the depth of geothermal water circulation and the age of geothermal water. However, at present, in the process of collecting geothermal gas, hot springs or geothermal wells are degassed near the surface, and the gas obtained by drainage gas collection is usually free gas. The measured geothermal gas content is relative volume percentage (vol.%), that is, relative content, lacking the absolute content of geothermal gas (cm 3 STP gH2O -1 ), which in turn limits the application of geothermal gas dating methods.

[0051] In view of this, the embodiments of the present application provide a method, device, electronic device and storage medium for calculating the absolute content of geothermal gas. The scheme obtains the relative content of geothermal gas; determines the gas partial pressure corresponding to the relative content; determines the Henry constant corresponding to the geothermal gas; and calculates the absolute content of geothermal gas based on the gas partial pressure and Henry constant. The present application can calculate the absolute content of geothermal gas based on the relative content of geothermal gas, provide a data basis for studying the material evolution and energy evolution of the earth's surface and interior, and can be applied to fields such as geothermal gas dating methods.

[0052] A method for calculating the absolute content of geothermal gas provided in an embodiment of the present application relates to the field of geothermal resource technology. The method for calculating the absolute content of geothermal gas provided in an embodiment of the present application can be applied to a terminal, can be applied to a server, or can be software running in a terminal or a server. In some embodiments, the terminal can be a smart phone, a tablet computer, a laptop computer, a desktop computer, a smart speaker, a smart watch, and a car terminal, etc., but is not limited to this; the server side can be configured as an independent physical server, or can be configured as a server cluster or distributed system composed of multiple physical servers, and can also be configured as a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms. The server can also be a node server in a blockchain network; the software can be an application that implements the method for calculating the absolute content of geothermal gas, etc., but is not limited to the above forms.

[0053] The present application can be used in many general or special computer system environments or configurations. For example: personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronics, network PCs, minicomputers, mainframe computers, distributed computing environments including any of the above systems or devices, etc. The present application can be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The present application can also be practiced in distributed computing environments, in which tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules can be located in local and remote computer storage media including storage devices.

[0054] Reference Figure 1 The present application embodiment provides a method for calculating the absolute content of geothermal gas. The method may include but is not limited to S100 to S130, which are as follows:

[0055] S100: Obtaining the relative content of geothermal gas.

[0056] First, this embodiment describes an implementation method for collecting geothermal gas.

[0057] Collect geothermal fluid samples from geothermal wells in a certain area: connect a plastic tube made of HPDE material to the geothermal wellhead, and connect a high-temperature resistant hot water pipe, a copper tube condenser, a silicone tube, and a pointed glass tube to the wellhead in sequence. Initially, fill a 50 ml brine glass bottle with geothermal water and immerse it in a container filled with geothermal water. Place the pointed glass tube in a container filled with geothermal water. After the entire sampling device is filled with geothermal fluid and the amount of bubbles is stable, extend the silicone tube with the pointed glass tube into the brine glass bottle, and use the gas collection and drainage method to collect geothermal gas. The scene example of collecting geothermal gas is shown in the figure below Figure 2 As shown, after the salt water bottle is filled with gas, the glass bottle is sealed with a rubber stopper, and then further sealed with an aluminum cap using a capping machine. During the whole process, the mouth of the glass bottle is always immersed below the surface of the geothermal water in the container; then the salt water bottle is placed in a 500 ml polyethylene bottle filled with corresponding geothermal water to ensure that no bubbles remain, and it is sealed with sealing glue to avoid atmospheric pollution during transportation.

[0058] Then, sampling gas is collected from the collected geothermal water, and the relative content of the collected sampling gas is measured.

[0059] Furthermore, S100 may include:

[0060] The relative content of the sampled gas components is measured using a mass spectrometer to obtain the relative content of the geothermal gas.

[0061] S110: Determine the gas partial pressure corresponding to the relative content.

[0062] Specifically, the gas partial pressure of the collected geothermal gas at the relative content is determined.

[0063] Furthermore, S110 may include:

[0064] The relative content is multiplied by the total atmospheric pressure at the sampling point of the geothermal gas, and the multiplication result is used as the gas partial pressure.

[0065] Specifically, the total atmospheric pressure at the sampling point refers to the atmospheric pressure of the environment in which the geothermal well is located.

[0066] S120: Determine the Henry constant corresponding to the geothermal gas.

[0067] Specifically, different geothermal gases have different Henry constants. As an optional implementation, S120 may further include:

[0068] Calculate the Henry constant corresponding to the geothermal gas according to the Benson coefficient;

[0069] The calculation formula of the Henry constant is:

[0070]

[0071] Among them, H CP is the Henry constant corresponding to geothermal gas, β is the Benson coefficient, R is the gas constant, and T0 is the standard temperature under standard conditions;

[0072] The calculation formula of the Benson coefficient is:

[0073] lnβ=A1+A2(100 / T)+A3 ln(T / 100)+S‰[B1+B2(100 / T)+B3 ln(T / 100) 2 ](2);

[0074] Wherein, T is the temperature of the geothermal water, S is the salinity of the geothermal water, and A1, A2, A3, B1, B2, and B3 are all constants used to calculate the Benson constant. Optionally, in this embodiment, an infrared thermometer can be used to measure the geothermal water temperature at the water outlet, and a multi-parameter water quality analyzer can be used to measure the salinity of the geothermal water.

[0075] Illustratively, this embodiment may provide some constants corresponding to optional gases for calculating the Benson constant, please refer to Table 1 for details.

[0076] Table 1 Constants used for calculation of Benson constants

[0077] <![CDATA[A1]]> <![CDATA[A2]]> <![CDATA[A3]]> <![CDATA[B1]]> <![CDATA[B2]]> <![CDATA[B3]]> He -34.6261 43.0285 14.1391 -0.04234 0.022624 -0.003312 Ne -39.1971 51.8013 15.7699 -0.124695 0.078374 -0.0127972 <![CDATA[H2]]> -47.8948 65.0368 20.1709 -0.082225 0.049564 -0.0078689 CO -47.6148 69.5068 18.7397 0.045657 -0.040721 0.00797 <![CDATA[CH4]]> -68.8862 101.4956 28.7314 -0.076146 0.04397 -0.0068672

[0078] S130: Calculating the absolute content of the geothermal gas according to the gas partial pressure and the Henry constant.

[0079] Specifically, when the gas escapes from the geothermal water near the surface to form free gas, the phase transition is an equilibrium state. At this time, the dissolved gas concentration in the geothermal water (C; unit is cm 3 STP gH2O -1 ), i.e., the absolute content, can be calculated based on the gas partial pressure (P i ) and Henry's constant (H CP ) calculated.

[0080] Further, S130 may include:

[0081] Calculating the absolute content of the geothermal gas according to a gas absolute content calculation formula;

[0082] The absolute gas content calculation formula is:

[0083]

[0084] Wherein, C is the absolute content of the geothermal gas, H CP is the Henry constant corresponding to geothermal gas, P i is the partial pressure of the gas, R is the gas constant, T0 is the standard temperature under standard conditions, and P0 is the standard pressure under standard conditions.

[0085] According to the above formulas, the calculation formula for the absolute content of geothermal gas can be transformed into:

[0086]

[0087] Where x is the relative content of geothermal gas (unit: vol%), P s is the total atmospheric pressure at the sampling point of geothermal gas, and e is the natural base.

[0088] In addition, some components in geothermal gas are also important geothermal associated resources. For example, helium (He) in geothermal gas has the characteristics of chemical inertness and low boiling point. It is a rare resource indispensable for the development of high-tech industries. It is widely used in advanced technologies and scientific research such as magnetic resonance imaging, semiconductor devices, fiber optic communications and space propulsion. Hydrogen (H2) in geothermal gas is currently the gas with the highest energy content and is carbon-free. It meets the global demand for low-carbon or carbon-free energy development and is considered to be the "future clean energy" to replace fossil energy. The development and utilization of hydrogen will help reduce greenhouse gas emissions and alleviate global warming. It is an inevitable choice for long-term response to climate change and adjustment of energy structure. Whether it is the study of the causes of geothermal resources or the development of geothermal associated gas resources, it is necessary to know the absolute content of the gas.

[0089] Therefore, the embodiment of the present application may further include:

[0090] Acquiring groundwater reserves in a thermal reservoir; wherein the geothermal gas is collected from the thermal reservoir;

[0091] The groundwater reserves are multiplied by the absolute content of the geothermal gas, and the multiplication result is used as the geothermal associated gas resource amount of the thermal reservoir.

[0092] As a further implementation method, the step of obtaining the groundwater reserves in the thermal reservoir is more specifically:

[0093] The thickness of the heat reservoir, the distribution area of ​​the geothermal zone and the porosity of the heat reservoir rock are multiplied, and the multiplication result is used as the groundwater reserve in the heat reservoir.

[0094] Specifically, the amount of geothermal associated gas resources (Q) can be calculated based on the groundwater reserves (R w ) and the absolute content of geothermal gas (C) calculated, the calculation formula is as follows; the groundwater storage in the thermal reservoir (R w ) is composed of the thickness of the heat reservoir (H, in m), the distribution area of ​​the geothermal area (A, in m 2 ) and the porosity (Φ) of the thermal reservoir rock, and the calculation formula is as follows:

[0095] Q=R W ×C (5);

[0096] R W =AHΦ (6);

[0097] The distribution area of ​​the geothermal area can be obtained through on-site measurement, and the thickness of the thermal reservoir and the porosity of the thermal reservoir rock can usually be obtained through drilling data and geophysical methods. Considering the uncertainty of the thermal reservoir parameters, which have a certain range of variation and follow a certain probability distribution, this embodiment can use the Monte Carlo simulation calculation method in the process of calculating the groundwater reserves in the thermal reservoir. Optionally, the Monte Carlo simulation calculation method is performed using Oracle Crystal Ball simulation software. According to the characteristic values ​​of each parameter of the Monte Carlo simulation calculation method, the parameter distribution is defined using triangular probability density, and simulation is performed to obtain the groundwater reserves in the thermal reservoir.

[0098] The embodiments of the present application can obtain the absolute content of geothermal gas based on the fact that when gas escapes from geothermal water near the surface to form free gas (the phase transition is a state of equilibrium), the gas-liquid distribution of geothermal gas between the liquid phase and the gas phase satisfies Henry's law, and use the reserve method to evaluate the amount of geothermal associated resources.

[0099] Next, the solution of the embodiment of the present application will be described in detail and explained in conjunction with specific application examples:

[0100] Exemplarily, the geothermal resources in a certain area are used as an example for explanation. In recent years, with the exploitation and research of geothermal resources, it has been found that the associated gases hydrogen and helium in the geothermal gas in the area are abnormally high. When the helium concentration reaches 0.05-0.1vol.%, it has industrial value and can be mined as a helium reservoir. The hot water associated helium resources in the area reach 0.53vol.%, exceeding the industrial value standard. In addition, the detected hydrogen is as high as 12.45vol.%, far exceeding other regions. However, due to the limitations of existing sampling methods, only the relative content of the gas can be obtained, and the absolute content of helium and hydrogen cannot be obtained, resulting in the long-term inability to know the resource potential of helium and hydrogen. Therefore, based on the absolute content calculation method of geothermal gas in the embodiment of the present application, the absolute content of helium and hydrogen in the geothermal gas of the geothermal system in the area is calculated, and then the geothermal associated gas resource potential is obtained, as follows:

[0101] The geothermal gas from 5 geothermal wells in the area was collected by drainage gas collection method in the field. The geothermal water temperature (T) was measured at 60-89.5℃ by infrared thermometer at the outlet, and the water salinity (S) was measured by multi-parameter water quality analyzer to be 3.5-12.4‰. The total atmospheric pressure at the sampling point was measured to be 0.9950-0.9974atm. The MAT 271 mass spectrometer was used in the laboratory for measurement, with a detection limit of 0.0001% and a relative standard error of <5%. The relative content of helium was measured to be 0.04vol.%-0.53vol.%, and the relative content of hydrogen was 2.38vol.%-12.45vol.%.

[0102] The constants A1, A2, A3, B1, B2, and B3 corresponding to the absolute content of helium in formula (4) can be obtained by looking up Table 1, which are A1 = -34.6261, A2 = 43.0285, A3 = 14.1391, B1 = -0.04234, B2 = 0.022624, and B3 = -0.003312. Substituting into formula (4) to obtain formula (7), the absolute content of helium obtained based on formula (7) is 4.0×10 -6 to 5.3×10 -5 cm 3 STP -1 H2O, please refer to Table 2 for details.

[0103]

[0104] Table 2 Calculation parameters of absolute helium content

[0105]

[0106] The constants A1, A2, A3, B1, B2, and B3 corresponding to the absolute content of hydrogen in the calculation formula (4) can be obtained by looking up Table 1, which are A1 = -47.8948, A2 = 65.0368, A3 = 20.1709, B1 = -0.082225, B2 = 0.049564, and B3 = -0.0078689. Substituting into the calculation formula (4) to obtain the calculation formula (8), the absolute content of hydrogen obtained based on the calculation formula (8) is 4.1×10 -4 to 2.1×10 -3 cm 3 STP -1 H2O, please refer to Table 3 for details.

[0107]

[0108] Table 3 Calculation parameters of absolute hydrogen content

[0109]

[0110] The geothermal reservoirs in this area are mainly Cretaceous Laiyang Group sandstone and Qingshan Group volcaniclastic rock. According to the micro-seismic detection results, the concentrated distribution area of ​​geothermal wells is 160,000m 2 The thickness of the thermal reservoir is 50-100m, and the porosity of the thermal reservoir rock is 10%. In this embodiment, the Oracle Crystal Ball simulation software can be used for Monte Carlo simulation calculation. According to the characteristic values ​​of each parameter in the above Monte Carlo simulation calculation method, the parameter distribution is defined by triangular probability density, and the number of iterations is 10,000. The simulation is performed to obtain the groundwater reserves in the thermal reservoir of 8,000,000-16,000,000m3 , with an average value of 1.18×10 6 m 3 For details, please refer to Figure 3 According to the absolute helium content of 4.0×10 -6 to 5.3×10 -5 cm 3 STP -1 H2O, the geothermal associated helium resources in the concentrated geothermal well mining area are 5-63m 3 STP gH2O -1 ; According to the absolute content of hydrogen is 4.1×10 -4 to 2.1×10 -3 cm 3 STP -1 H2O, geothermal associated hydrogen resources are 487-2495m 3 STP gH2O -1 As for the entire mid-deep geothermal resources in the region, the total area of ​​the region is 113km 2 The top boundary of the bedrock thermal reservoir is 200m, the bottom boundary is 2000m deep, the thickness of the thermal reservoir is 1800m, the porosity of the thermal reservoir rock is 3%, and the groundwater reserves in the thermal reservoir are 6.1×10 9 m 3 , the resources of helium and hydrogen are 7.8×10 6 m 3 STP gH2O -1 and 1.1×10 5 m 3 STP gH2O -1 .

[0111] Reference Figure 4 The present application also provides a device for calculating the absolute content of geothermal gas, which can implement the above-mentioned method for calculating the absolute content of geothermal gas. The device includes:

[0112] A relative content acquisition unit, used to acquire the relative content of geothermal gas;

[0113] A gas partial pressure determination unit, used to determine the gas partial pressure corresponding to the relative content;

[0114] A Henry constant determination unit, used to determine the Henry constant corresponding to the geothermal gas;

[0115] The absolute content calculation unit is used to calculate the absolute content of the geothermal gas according to the gas partial pressure and the Henry constant.

[0116] It can be understood that the contents of the above method embodiments are all applicable to the present device embodiments, the functions specifically implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0117] The embodiment of the present application also provides an electronic device, the electronic device includes a memory and a processor, the memory stores a computer program, and the processor implements the above-mentioned geothermal gas absolute content calculation method when executing the computer program. The electronic device can be any smart terminal including a tablet computer, a car computer, etc.

[0118] It can be understood that the contents of the above method embodiments are all applicable to the present device embodiments, the functions specifically implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0119] See also Figure 5 , Figure 5 The hardware structure of an electronic device of another embodiment is illustrated, and the electronic device includes:

[0120] The processor 501 may be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of the present application;

[0121] The memory 502 can be implemented in the form of a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 502 can store an operating system and other application programs. When the technical solution provided in the embodiment of this specification is implemented by software or firmware, the relevant program code is stored in the memory 502, and the processor 501 calls and executes the geothermal gas absolute content calculation method of the embodiment of this application;

[0122] Input / output interface 503, used to implement information input and output;

[0123] Communication interface 504, used to realize communication interaction between the device and other devices, which can be realized by wired mode (such as USB, network cable, etc.) or wireless mode (such as mobile network, WIFI, Bluetooth, etc.);

[0124] A bus 505 that transmits information between the various components of the device (e.g., the processor 501, the memory 502, the input / output interface 503, and the communication interface 504);

[0125] The processor 501 , the memory 502 , the input / output interface 503 and the communication interface 504 are connected to each other in communication within the device via the bus 505 .

[0126] An embodiment of the present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, the above-mentioned method for calculating the absolute content of geothermal gas is implemented.

[0127] It can be understood that the contents of the above method embodiments are all applicable to the present storage medium embodiments, the functions specifically implemented by the present storage medium embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0128] The memory, as a non-transient computer-readable storage medium, can be used to store non-transient software programs and non-transient computer executable programs. In addition, the memory may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory may optionally include a memory remotely disposed relative to the processor, and these remote memories may be connected to the processor via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0129] The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0130] Those skilled in the art will appreciate that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.

[0131] The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0132] Those skilled in the art will appreciate that all or some of the steps in the methods disclosed above, and the functional modules / units in the systems and devices may be implemented as software, firmware, hardware, or a suitable combination thereof.

[0133] The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0134] It should be understood that in the present application, "at least one (item)" means one or more, and "plurality" means two or more. "And / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can mean: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the objects associated before and after are in an "or" relationship. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0135] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0136] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0137] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0138] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including multiple instructions to enable a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), disk or optical disk and other media that can store programs.

[0139] The preferred embodiments of the present invention are described above with reference to the accompanying drawings, but the scope of the rights of the present invention is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present invention should be within the scope of the rights of the present invention.

Claims

1. A method for calculating the absolute content of geothermal gas, characterized in that: The method comprises: Obtain the relative content of geothermal gas; the relative content of gas is relative volume percentage, the unit is vol.%; The geothermal gas collection method comprises: connecting a plastic tube made of HPDE material to a geothermal wellhead, and sequentially connecting a high-temperature resistant hot water pipe, a copper tube condenser, a silicone tube and a pointed glass tube to the wellhead; initially filling a 50 ml salt water glass bottle with geothermal water and immersing it in a container filled with geothermal water; placing the pointed glass tube in the container filled with geothermal water, and after the entire sampling device is filled with geothermal fluid and the amount of bubbles is stable, extending the silicone tube with the pointed glass tube into the salt water glass bottle, and collecting geothermal gas by using a gas collection and drainage method; after the salt water bottle is filled with gas, sealing the glass bottle with a rubber stopper, and further sealing it with an aluminum cap using a capping device, and during the whole process, the mouth of the glass bottle is always immersed below the surface of the geothermal water in the container; then placing the salt water bottle into a 500 ml polyethylene bottle filled with corresponding geothermal water so that no bubbles remain, and sealing it with a sealing glue; Determining the gas partial pressure corresponding to the relative content; determining a Henry's constant corresponding to the geothermal gas; Calculating the absolute content of the geothermal gas according to the gas partial pressure and the Henry constant; Determining the Henry constant corresponding to the geothermal gas includes: Calculate the Henry constant corresponding to the geothermal gas according to the Benson coefficient; The calculation formula of the Henry constant is: Among them, H CP is the Henry constant corresponding to geothermal gas, β is the Benson coefficient, R is the gas constant, and T0 is the standard temperature under standard conditions; The calculation formula of the Benson coefficient is: lnβ=A1+A2(100 / T)+A3 ln(T / 100)+S‰[B1+B2(100 / T)+B3ln(T / 100) 2 ]; Wherein, T is the temperature of geothermal water, S is the salinity of the geothermal water, and A1, A2, A3, B1, B2, and B3 are all constants used to calculate the Benson coefficient; Calculating the absolute content of the geothermal gas according to the gas partial pressure and the Henry constant includes: The absolute content of the geothermal gas is calculated according to the absolute content calculation formula of the gas; the absolute content of the gas is the dissolved gas concentration, and the unit is cm 3 STP gH2O -1 ; The absolute gas content calculation formula is: Wherein, C is the absolute content of the geothermal gas, H CP is the Henry constant corresponding to geothermal gas, P i is the partial pressure of the gas, R is the gas constant, T0 is the standard temperature under standard conditions, and P0 is the standard pressure under standard conditions; The geothermal gas includes helium, neon, hydrogen, carbon monoxide and methane; The method further comprises: Acquiring groundwater reserves in a thermal reservoir; wherein the geothermal gas is collected from the thermal reservoir; Multiplying the groundwater reserves by the absolute content of the geothermal gas, and using the multiplication result as the geothermal associated gas resource of the thermal reservoir; The method of obtaining the underground water reserves in the thermal reservoir comprises: The thickness of the heat reservoir, the distribution area of ​​the geothermal zone and the porosity of the heat reservoir rock are multiplied, and the multiplication result is used as the groundwater reserve in the heat reservoir.

2. A method for calculating the absolute content of geothermal gas according to claim 1, characterized in that: The obtaining of the relative content of geothermal gas comprises: The relative content of the components of the sampled gas is measured using a mass spectrometer to obtain the relative content of the geothermal gas.

3. The method for calculating the absolute content of geothermal gas according to claim 1, characterized in that: Determining the gas partial pressure corresponding to the relative content includes: The relative content is multiplied by the total atmospheric pressure at the sampling point of the geothermal gas, and the multiplication result is used as the gas partial pressure.

4. A device for calculating the absolute content of geothermal gas, characterized in that: The device comprises: The relative content acquisition unit is used to obtain the relative content of geothermal gas; the relative content of gas is a relative volume percentage, and the unit is vol.%; The geothermal gas collection method includes: connecting a plastic tube made of HPDE material to the geothermal wellhead, and connecting a high-temperature resistant hot water pipe, a copper tube condenser, a silicone tube and a pointed glass tube to the wellhead in sequence; initially filling a 50 ml salt water glass bottle with geothermal water and immersing it in a container filled with geothermal water; placing the pointed glass tube in the container filled with geothermal water, and after the entire sampling device is filled with geothermal fluid and the amount of bubbles is stable, extending the silicone tube with the pointed glass tube into the salt water glass bottle, and collecting geothermal gas by using a gas collection and drainage method; after the salt water bottle is filled with gas, sealing the glass bottle with a rubber stopper, and then further sealing it with an aluminum cap using a capping device, and during the whole process, the mouth of the glass bottle is always immersed below the surface of the geothermal water in the container; then placing the salt water bottle into a 500 ml polyethylene bottle filled with corresponding geothermal water so that no bubbles remain, and sealing it with sealing glue; A gas partial pressure determination unit, used to determine the gas partial pressure corresponding to the relative content; A Henry constant determination unit, used to determine the Henry constant corresponding to the geothermal gas; an absolute content calculation unit, used to calculate the absolute content of the geothermal gas according to the gas partial pressure and the Henry constant; Determining the Henry constant corresponding to the geothermal gas includes: Calculate the Henry constant corresponding to the geothermal gas according to the Benson coefficient; The calculation formula of the Henry constant is: Among them, H CP is the Henry constant corresponding to geothermal gas, β is the Benson coefficient, R is the gas constant, and T0 is the standard temperature under standard conditions; The calculation formula of the Benson coefficient is: lnβ=A1+A2(100 / T)+A3 ln(T / 100)+S‰[B1+B2(100 / T)+B3ln(T / 100) 2 ]; Wherein, T is the temperature of geothermal water, S is the salinity of the geothermal water, and A1, A2, A3, B1, B2, and B3 are all constants used to calculate the Benson coefficient; Calculating the absolute content of the geothermal gas according to the gas partial pressure and the Henry constant includes: The absolute content of the geothermal gas is calculated according to the absolute content calculation formula of the gas; the absolute content of the gas is the dissolved gas concentration, and the unit is cm 3 STP gH2O -1 ; The absolute gas content calculation formula is: Wherein, C is the absolute content of the geothermal gas, H CP is the Henry constant corresponding to geothermal gas, P i is the partial pressure of the gas, R is the gas constant, T0 is the standard temperature under standard conditions, and P0 is the standard pressure under standard conditions; The geothermal gas includes helium, neon, hydrogen, carbon monoxide and methane; The method further comprises: Acquiring groundwater reserves in a thermal reservoir; wherein the geothermal gas is collected from the thermal reservoir; Multiplying the groundwater reserves by the absolute content of the geothermal gas, and using the multiplication result as the geothermal associated gas resource of the thermal reservoir; The method of obtaining the underground water reserves in the thermal reservoir comprises: The thickness of the heat reservoir, the distribution area of ​​the geothermal zone and the porosity of the heat reservoir rock are multiplied, and the multiplication result is used as the groundwater reserve in the heat reservoir.

5. An electronic device, characterized in that: The electronic device comprises a memory and a processor, the memory stores a computer program, and the processor implements the method according to any one of claims 1 to 3 when executing the computer program.

6. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 3 is implemented.

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