Helium genesis resource evaluation method and apparatus

Abstract

A helium genesis resource evaluation method and apparatus, a processor, and a storage medium, relating to the technical field of helium genesis resource evaluation. The method comprises: determining the content of a decayed daughter isotope in a helium source rock at a target area; determining the amount of substance of helium in the helium source rock on the basis of the content of the decayed daughter isotope in the helium source rock; determining a total helium production amount of the helium source rock on the basis of the amount of substance of the helium in the helium source rock; determining a migration-accumulation coefficient of the helium in the helium source rock at the target area; and determining a helium accumulation resource amount on the basis of the migration-accumulation coefficient and the total helium production amount of the helium source rock. The method can realize effective evaluation on helium resources, and has an important guidance effect on conducting a research on helium reservoir formation and enrichment rule.

Description

Helium gas resource evaluation method and device Technical Field

[0001] The present application relates to the technical field of helium resource evaluation, and in particular to a helium-genetic resource evaluation method, a helium-genetic resource evaluation device, a machine-readable storage medium, and a processor. Background Art

[0002] Helium is known as the "golden gas." The inventors discovered that due to the difficulty in determining the thickness and migration coefficient of helium source rocks, as well as the difficulty in determining mantle-derived rocks, there is currently no mature helium generation method for helium resource evaluation, both domestically and internationally. The inventors discovered that while the helium percentage method is accurate, it relies on the quantity and quality of helium data points and the accuracy of natural gas reserves. At the same time, when calculating resource quantities using the genetic method, the difficulty in determining the thickness and migration coefficient of helium source rocks, as well as the difficulty in determining mantle-derived rocks, leads to large errors in resource calculations. The inventors also discovered that although helium and natural gas accumulate in the same enclosure, due to the completely different mechanisms of helium generation and hydrocarbon generation, there is no correlation between the migration coefficients of natural gas and helium, and the migration and accumulation of helium reservoirs follows their own laws.

[0003] In view of the above problems, the present application proposes a helium genesis resource evaluation method that overcomes the above problems or at least partially solves the above problems.

[0004] Summary of the Invention

[0005] The present invention provides a method for evaluating helium-derived resources, a device for evaluating helium-derived resources, a machine-readable storage medium, and a processor. The method can effectively evaluate helium resources and plays an important role in guiding research on helium accumulation and enrichment patterns.

[0006] In order to achieve the above objectives, the present application provides, in a first aspect, a method for evaluating helium-derived resources, the method comprising:

[0007] Obtain the absolute age, density, content of radioactive elements in the helium source rock, and decay constant of the radioactive elements in the helium source rock in the target area;

[0008] Determine the volume of helium source rock in the target area;

[0009] Determining the content of undecayed parent isotopes in the helium source rock based on the density of the helium source rock, the content of radioactive elements in the helium source rock, and the volume of the helium source rock;

[0010] Determining the content of decayed daughter isotopes in the helium source rock based on the absolute age of the helium source rock, the decay constant of the radioactive elements in the helium source rock, and the content of the undecayed parent isotopes in the helium source rock;

[0011] Determining the amount of helium in the helium source rock based on the content of the decayed daughter isotope in the helium source rock;

[0012] Determining the total amount of helium generated by the helium source rock based on the amount of helium in the helium source rock;

[0013] Determine the migration and accumulation coefficient of helium in the helium source rocks in the target area;

[0014] The amount of helium accumulation resources is determined based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock.

[0015] Wherein, determining the volume of the helium source rock in the target area includes:

[0016] Determine the bottom depth of the helium source rock in the target area based on a preset temperature;

[0017] Determine the top depth of the helium source rock in the target area and the distribution area of ​​the helium source rock;

[0018] Determining the thickness of the helium source rock based on the bottom depth of the helium source rock and the top depth of the helium source rock;

[0019] The volume of the helium source rock is determined based on the thickness of the helium source rock and the distribution area of ​​the helium source rock.

[0020] In an embodiment of the present application, determining the bottom depth of the helium source rock in the target area includes: determining the bottom depth of the helium source rock in the target area based on a preset temperature.

[0021] In the embodiment of the present application, determining the bottom depth of the helium source rock in the target area based on the preset temperature includes:

[0022] The stratum depth corresponding to the preset temperature is determined as the bottom depth of the helium source rock, and the helium source rock includes granite and volcanic rock.

[0023] In the embodiment of the present application, the temperature range of the preset temperature is: 220°C ~ 240°C.

[0024] In the embodiment of the present application, determining the bottom depth of the helium source rock in the target area, the top depth of the helium source rock, and the distribution area of ​​the helium source rock includes:

[0025] The bottom depth, top depth and distribution area of ​​the helium source rock in the target area are determined based on seismic data and drilling data. The helium source rock includes coal seams and mud shale.

[0026] In the embodiment of the present application, the distribution area of ​​the helium source rock is determined based on seismic data and drilling data, including:

[0027] For helium source rocks with unstable thickness or discontinuous distribution, the distribution area of ​​the helium source rocks is calculated using the small surface element integration method based on seismic data and drilling data.

[0028] In the embodiment of the present application, the formation depth corresponding to the preset temperature is determined as the bottom depth of the helium source rock by formula (1):

[0029] H 底 =(t 预设温度 -t 地表温度 ) / K+50(1);

[0030] Where H 底 Indicates the bottom depth of the helium source rock, in meters;

[0031] t 地表温度 Indicates the surface temperature in °C;

[0032] K represents the geothermal gradient, with the unit being ℃ / 100m.

[0033] In the embodiment of the present application, the thickness of the helium source rock is determined based on the bottom depth of the helium source rock and the top depth of the helium source rock by formula (2):

[0034] h=H 底 -H 顶 (2);

[0035] Where h represents the thickness of the helium source rock, in meters;

[0036] H 底 Indicates the bottom depth of the helium source rock, in meters;

[0037] H 顶 Indicates the top depth of the helium source rock, in meters.

[0038] In the embodiment of the present application, the volume of the helium source rock is determined based on the thickness of the helium source rock and the distribution area of ​​the helium source rock by formula (3):

[0039] V = h × S (3);

[0040] Where V represents the volume of the helium source rock, in m 3 ;

[0041] h represents the thickness of the helium source rock, in meters;

[0042] S represents the area of ​​helium source rock distribution, in m 2 .

[0043] In the embodiment of the present application, the content of the undecayed parent isotope in the helium source rock is determined based on the density of the helium source rock, the content of the radioactive element in the helium source rock, and the volume of the helium source rock by formula (4):

[0044] P=v×ρ 源岩 ×x(4);

[0045] Where P represents the content of the undecayed parent isotope in the helium source rock, in mol;

[0046] v represents the volume of the helium source rock, in m 3 ;

[0047] ρ 源岩 Indicates the density of the helium source rock, in t / m 3 ;

[0048] x represents the content of radioactive elements in the helium source rock, in mol / g.

[0049] In the embodiment of the present application, the content of the decayed daughter isotope in the helium source rock is determined by formula (5) based on the absolute age of the helium source rock, the decay constant of the radioactive element in the helium source rock, and the content of the undecayed parent isotope in the helium source rock:

[0050]

[0051] Where D represents the content of decayed daughter isotopes in the helium source rock, in mol;

[0052] λ represents the decay constant of the isotope of the radioactive element in the helium source rock, which is dimensionless;

[0053] t represents the absolute geological age of the helium source rock, in millions of years;

[0054] v represents the volume of the helium source rock, in m 3 ;

[0055] ρ 源岩 Indicates the density of the helium source rock, in t / m 3 ;

[0056] x represents the content of radioactive elements in the helium source rock, in mol / g.

[0057] In the embodiment of the present application, the radioactive elements in the helium source rock include: 238U and 232Th;

[0058] For 238U decay, the amount of helium in the helium source rock is determined based on the content of the decayed daughter isotope in the helium source rock using formula (6):

[0059] n=D×8 / 238(6);

[0060] For 232Th decay, the amount of helium in the helium source rock is determined based on the content of the decayed daughter isotope in the helium source rock using formula (7):

[0061] n=D×6 / 232(7);

[0062] Where n represents the amount of helium in the helium source rock, and D represents the content of the decayed daughter isotope in the helium source rock.

[0063] In the embodiment of the present application, the total amount of helium generated by the helium source rock is determined based on the amount of helium in the helium source rock using formula (8):

[0064] V He生 =n×M / ρ he (8);

[0065] Where V He生 Indicates the total amount of helium generated, that is, the amount of helium resources, the unit is m 3 ;

[0066] n represents the amount of helium in the helium source rock;

[0067] M represents the molar mass of the total amount of helium produced;

[0068] ρ he Indicates the density of helium, which is 0.1786 g / L.

[0069] In the embodiment of the present application, the migration and accumulation coefficient of helium in the helium source rock in the target area is determined by formula (9):

[0070] Φ=Φ1×Φ2 (9);

[0071] Wherein, Φ1 is the helium expulsion rate of the helium source rock, in %, and Φ2 is the degassing rate of water-soluble helium, in %.

[0072] In the embodiment of the present application, the amount of helium accumulation resources is determined based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock using formula (10):

[0073] V he聚 =Φ×V he生 (10);

[0074] Where V he聚 Indicates the amount of helium accumulation, that is, the amount of helium accumulation resources, the unit is m 3 ;

[0075] Φ represents the transport and aggregation coefficient, in %;

[0076] V he生 Indicates the total amount of helium produced, in m 3 .

[0077] In an embodiment of the present application, the helium gas includes 3He and 4He, and the method further includes:

[0078] According to the binary composite formula, the resource amounts of mantle-derived helium and crust-derived helium are determined by the ratio of 3He / 4He.

[0079] A second aspect of the present application provides a helium-genetic resource evaluation device, the device comprising:

[0080] An acquisition module is used to obtain the absolute age of the helium source rock in the target area, the density of the helium source rock, the content of radioactive elements in the helium source rock, and the decay constant of the radioactive elements in the helium source rock;

[0081] A first determination module is used to determine the volume of the helium source rock in the target area;

[0082] a second determination module, configured to determine the content of undecayed parent isotopes in the helium source rock based on the density of the helium source rock, the content of radioactive elements in the helium source rock, and the volume of the helium source rock;

[0083] a third determination module, configured to determine the content of decayed daughter isotopes in the helium source rock based on the absolute age of the helium source rock, the decay constant of the radioactive elements in the helium source rock, and the content of undecayed parent isotopes in the helium source rock;

[0084] a fourth determination module, configured to determine the amount of helium in the helium source rock based on the content of the decayed daughter isotope in the helium source rock;

[0085] a fifth determining module, configured to determine the total amount of helium generated by the helium source rock based on the amount of helium in the helium source rock;

[0086] The sixth determination module is used to determine the migration and accumulation coefficient of helium in the helium source rock in the target area;

[0087] The seventh determination module is used to determine the amount of helium accumulation resources based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock.

[0088] The first determining module includes:

[0089] A bottom depth determination module is used to determine the bottom depth of the helium source rock in the target area based on a preset temperature;

[0090] A top surface depth and distribution area determination module is used to determine the top surface depth and distribution area of ​​the helium source rock in the target area;

[0091] a thickness determination module, configured to determine the thickness of the helium source rock based on the bottom depth of the helium source rock and the top depth of the helium source rock;

[0092] The volume determination module is configured to determine the volume of the helium source rock based on the thickness of the helium source rock and the distribution area of ​​the helium source rock.

[0093] A third aspect of the present application provides a processor configured to execute the above-mentioned helium origin resource evaluation method.

[0094] A fourth aspect of the present application provides a machine-readable storage medium having instructions stored thereon, which, when executed by a processor, configure the processor to execute the above-mentioned helium origin resource evaluation method.

[0095] Compared with the prior art, the above technical solution of the present invention has the following beneficial effects:

[0096] This application proposes a method, device, storage medium, and processor for evaluating helium-derived resources. The method determines the amount of helium in the source rock by measuring the content of decayed daughter isotopes in the source rock. The method then determines the total amount of helium generated by the source rock based on the amount of helium in the source rock. Finally, the amount of helium accumulated in the source rock is determined based on the migration and accumulation coefficient of helium in the source rock. This application utilizes the above-mentioned method to effectively evaluate helium resources and provides important guidance for research on the formation and enrichment patterns of helium.

[0097] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0098] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following detailed description, they are used to explain the embodiments of the present application but do not constitute a limitation on the embodiments of the present application. In the accompanying drawings:

[0099] FIG1 schematically shows an application environment diagram of a helium-derived resource evaluation method according to an embodiment of the present application;

[0100] FIG2 schematically shows an overall flow chart of a helium-derived resource evaluation method according to an embodiment of the present application;

[0101] FIG3 schematically shows a flow chart of calculating the volume of helium source rock in a target area in a helium genetic resource evaluation method according to an embodiment of the present application;

[0102] FIG4 schematically shows a graph showing changes in Henry constants of He, N2, and CH4 with temperature according to an embodiment of the present application;

[0103] FIG5 schematically shows a schematic diagram of the effective thickness of helium source rock according to an embodiment of the present application;

[0104] FIG6 schematically shows a helium accumulation mode and process diagram according to an embodiment of the present application;

[0105] FIG7 schematically shows a structural block diagram of a helium-genetic resource evaluation device according to an embodiment of the present application;

[0106] FIG8 schematically shows an internal structure diagram of a computer device according to an embodiment of the present application. DETAILED DESCRIPTION

[0107] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the specific implementation methods described herein are only used to illustrate and explain the embodiments of the present application and are not used to limit the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0108] It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of this application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0109] The helium genetic resource evaluation method provided in this application can be applied in the application environment shown in Figure 1. Terminal 102 communicates with server 104 via a network. Terminal 102 can be, but is not limited to, various personal computers, laptops, smartphones, tablet computers, and portable wearable devices. Server 104 can be implemented as a standalone server or a server cluster consisting of multiple servers.

[0110] FIG2 schematically illustrates a flow chart of a helium-derived resource evaluation method according to an embodiment of the present application. As shown in FIG2 , in one embodiment of the present application, a helium-derived resource evaluation method is provided. This embodiment mainly uses the method applied to the terminal 102 (or server 104) in FIG1 as an example, and includes the following steps:

[0111] Step 110: Obtain the absolute age of the helium source rock in the target area, the density of the helium source rock, the content of radioactive elements in the helium source rock, and the decay constant of the radioactive elements in the helium source rock.

[0112] In this embodiment, the target area refers to the helium resource research area. In this embodiment, the helium source rock includes granite, volcanic rock and sedimentary rock. The age of granite or volcanic rock can be determined by measuring the isotopic age of zircon U-Pb in the rock. The age of sedimentary rock is mainly determined by measuring the age of paleontology in the rock. The density of helium source rock is generally constant, such as the density of granite is 2.3g / cm 3 The radioactive elements in helium source rocks include: uranium ( 235 U. 238 U) and thorium ( 232 Th). The content of radioactive elements such as uranium or thorium in the helium source rock can be determined by collecting representative helium source rock samples from different layers and structural parts. The content of uranium or thorium can be measured multiple times, and the error of the same sample is less than 5%, and the average value is calculated. 235 The decay constant of U is 9.8485×10 -10 / a, 238 The decay constant of U is 1.55125×10 -10 / a, 232 The decay constant of Th is 4.9745×10 -11 / a.

[0113] Step 120: Determine the volume of the helium source rock in the target area.

[0114] FIG3 schematically illustrates a flow chart of calculating the volume of helium source rock in a target area in a helium-derived resource evaluation method according to an embodiment of the present application. As shown in FIG3 , in this embodiment, the volume of the helium source rock in the target area is determined through steps 121 to 124:

[0115] Step 121: Determine the bottom depth of the helium source rock in the target area based on a preset temperature.

[0116] For example, to calculate the volume of the helium source rock, first, it is necessary to calculate the bottom depth of the helium source rock.

[0117] If the helium source rock is granite or volcanic rock, the bottom depth of the helium source rock can be determined according to the formation depth corresponding to 220°C to 240°C.

[0118] Figure 4 schematically illustrates the temperature variation curves of the Henry constants for He, N2, and CH4 according to an embodiment of the present application. As shown in Figure 4, according to the Henry curve, at 180°C, the solubility and partial pressure of helium (He) are essentially consistent with those of methane (CH4) and nitrogen (N2), and the potential for further helium release essentially disappears. At 240°C, the release potential of the helium source rock approaches zero. Therefore, this embodiment defines the stratum depth corresponding to 220°C to 240°C in the study area as the lower limit depth of helium source rocks such as granite and volcanic rocks, i.e., the bottom depth of the helium source rock.

[0119] FIG5 schematically shows a schematic diagram of the effective thickness of helium source rock according to an embodiment of the present application.

[0120] For example, if the helium source rock is granite or volcanic rock, the bottom depth of the helium source rock can be calculated by formula (1):

[0121] H 底 =(t 预设温度 -t 地表温度 ) / K+50(1);

[0122] Where H 底 Indicates the bottom depth of the helium source rock, in meters;

[0123] t 预设温度 Indicates the preset temperature, t 预设温度 The value range is 220℃~240℃.

[0124] t 地表温度 Indicates the surface temperature in °C;

[0125] K represents the geothermal gradient, with the unit being ℃ / 100m.

[0126] If the helium source rock is a sedimentary rock, such as a coal seam or shale, the bottom depth of the helium source rock can be determined based on seismic data and drilling data.

[0127] Step 122: Determine the top depth of the helium source rock in the target area and the distribution area of ​​the helium source rock.

[0128] In this embodiment, the top depth of the helium source rock and the distribution area of ​​the helium source rock can be determined by seismic data and drilling data. For helium source rocks with unstable thickness or discontinuous distribution, the distribution area of ​​the helium source rock can be calculated by the small pixel integration method.

[0129] Step 123: Determine the thickness of the helium source rock based on the bottom depth of the helium source rock and the top depth of the helium source rock.

[0130] For example, the thickness of the helium source rock can be calculated by formula (2):

[0131] h=H底 -H 顶 (2);

[0132] Where h represents the thickness of the helium source rock, in meters;

[0133] H 底 Indicates the bottom depth of the helium source rock, in meters;

[0134] H 顶 Indicates the top depth of the helium source rock, in meters.

[0135] Step 124: Determine the volume of the helium source rock based on the thickness of the helium source rock and the distribution area of ​​the helium source rock.

[0136] For example, the volume of the helium source rock can be calculated using formula (3):

[0137] V = h × S (3);

[0138] Where V represents the volume of the helium source rock, in m 3 ;

[0139] h represents the thickness of the helium source rock, in meters;

[0140] S represents the distribution area of ​​helium source rock, in m 2 .

[0141] This embodiment proposes a helium generation method based on Henry's law, which solves the key difficulty in determining the thickness parameters of helium source rocks. Conventional methods use a subjective inference method to determine the lower limit of helium source rocks, and infer the thickness of underground helium source rocks based on the thickness of the outcrop of the helium source rocks. However, the thickness of underground helium source rocks varies greatly, resulting in inaccurate volume calculations of helium source rocks. This application is guided by the helium accumulation theory, and takes the helium "death line" of 220℃-240℃ as the lower limit temperature of the depth of the helium source rock, and the depth corresponding to this temperature as the lower limit of the depth of the helium source rock, thereby determining the thickness of the helium source rock, effectively improving the accuracy of the helium source rock volume and the amount of helium generated resources, and reducing the error by 10%. This embodiment effectively solves the problem of difficulty in determining the thickness of helium source rocks in the prior art.

[0142] Step 130: Determine the content of undecayed parent isotopes in the helium source rock based on the density of the helium source rock, the content of radioactive elements in the helium source rock, and the volume of the helium source rock.

[0143] In this embodiment, the content of the undecayed parent isotope in the helium source rock can be calculated by (4):

[0144] P=V×ρ 源岩 ×x(4);

[0145] Where P represents the content of the undecayed parent isotope in the helium source rock, in mol;

[0146] V represents the volume of the helium source rock, in m 3 ;

[0147] ρ 源岩 Indicates the density of the helium source rock, in t / m 3 ;

[0148] x represents the content of radioactive elements in the helium source rock, in mol / g.

[0149] Step 140: Determine the content of decayed daughter isotopes in the helium source rock based on the absolute age of the helium source rock, the decay constant of the radioactive elements in the helium source rock, and the content of undecayed parent isotopes in the helium source rock.

[0150] In this embodiment, the content of decayed daughter isotopes in the helium source rock can be calculated by (5):

[0151]

[0152] Where D represents the content of decayed daughter isotopes in the helium source rock, in mol;

[0153] λ represents the decay constant of the isotope of the radioactive element in the helium source rock, which is dimensionless;

[0154] t represents the absolute geological age of the helium source rock, in millions of years;

[0155] v represents the volume of the helium source rock, in m 3 ;

[0156] ρ 源岩 Indicates the density of the helium source rock, in t / m 3 ;

[0157] x represents the content of radioactive elements in the helium source rock, in mol / g.

[0158] Step 150: Determine the amount of helium in the helium source rock based on the content of the decayed daughter isotopes in the helium source rock.

[0159] In this embodiment, the radioactive elements in the helium source rock include: 238U and 232Th;

[0160] For 238U decay, the amount of helium in the helium source rock is calculated using formula (6):

[0161] n=D×8 / 238(6);

[0162] For 232Th decay, the amount of helium in the helium source rock is calculated using formula (7):

[0163] n=D×6 / 232(7);

[0164] Where n represents the amount of helium in the helium source rock, and D represents the content of the decayed daughter isotope in the helium source rock.

[0165] Step 160: Determine the total amount of helium generated by the helium source rock based on the amount of helium in the helium source rock.

[0166] In this embodiment, the total amount of helium generated by the helium source rock is calculated using formula (8):

[0167] V He生 =n×M / ρ he (8);

[0168] Where V He生 Indicates the total amount of helium generated, that is, the amount of helium resources, the unit is m 3 ;

[0169] n represents the amount of helium in the helium source rock;

[0170] M represents the molar mass of the total amount of helium produced;

[0171] ρ he Indicates the density of helium, which is 0.1786 g / L.

[0172] For example, for 238U decay, the total amount of helium generated by the helium source rock is calculated using formula (8.1):

[0173]

[0174] For example, for 232Th decay, the total amount of helium generated by the helium source rock is calculated using formula (8.2):

[0175]

[0176] In formulas (9) and (10), V He生 It represents the helium resources in the study area, that is, the total amount of helium generated by the helium source rock, in m 3 ;

[0177] λ represents the decay constant of the uranium or thorium isotope in the study area, which is dimensionless;

[0178] t represents the absolute geological age of the helium source rock in the study area, in millions of years;

[0179] ρ 源岩 Indicates the density of the helium source rock in the study area, in t / m 3 For example, the density of granite is 2.5t / m 3 ;

[0180] ρ herepresents the density of helium in the study area, which is 0.1786 g / L;

[0181] v represents the volume of the helium source rock in the study area, in m 3 ;

[0182] x represents the uranium or thorium content in the helium source rock in the study area, in g / mol.

[0183] Step 170: Determine the migration and accumulation coefficient of helium in the helium source rock in the target area.

[0184] FIG6 schematically shows a helium accumulation mode and process diagram according to an embodiment of the present application. As shown in FIG6, this embodiment determines the helium source rock helium expulsion rate and water-soluble helium degassing rate under different accumulation modes based on the tectonic activity period and helium expulsion characteristics of the study area, and the migration and accumulation coefficient can be obtained by multiplying the two. Among them, different accumulation modes refer to the accumulation forms of helium from different sources in different closures: according to the gas composition, they are divided into helium-containing nitrogen reservoirs, helium-containing CO2 reservoirs, helium-containing natural gas reservoirs, etc.; according to the closure type, they are divided into anticlines, faults, and lithology; according to the source, they are divided into mantle source, crust source, or mixed source, etc.

[0185] The ratio of the helium source rock that has been degassed to the total volume of the helium source rock is the helium source rock degassing rate. By measuring the known water-soluble helium content in the scaled area and the helium content in the gas reservoir, the accumulated helium volume and the volume of the water-soluble helium are calculated. The ratio of the two is the water-soluble helium degassing rate.

[0186] In this embodiment, the migration and accumulation coefficient of helium in the helium source rock in the target area is calculated using formula (9):

[0187] Φ=Φ1×Φ2 (9);

[0188] Wherein, Φ1 is the helium expulsion rate of the helium source rock, in %, and Φ2 is the degassing rate of water-soluble helium, in %.

[0189] The helium source rock helium expulsion rate Φ1 is calculated by the ratio of the helium source rock that has already expelled helium to the total volume of the helium source rock. The water-soluble helium content and the helium content of the gas reservoir are known in the measurement scale area. The ratio of the accumulated helium volume to the water-soluble helium volume is the water-soluble helium degassing rate Φ2.

[0190] The primary and secondary migration coefficients of helium vary significantly under different reservoir formation patterns. Existing methods do not account for these differences in reservoir formation patterns and do not provide specific calculation formulas. This embodiment matches the migration and accumulation coefficients with the time of hydrocarbon accumulation, resolving the difficulty in determining these coefficients.

[0191] Step 180: Determine the amount of helium accumulation resources based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock.

[0192] In this embodiment, the total amount of helium generated by granite, igneous rocks, sedimentary rocks, etc. in the study area is multiplied by the migration and accumulation coefficient to obtain the geological resources of helium in the study area.

[0193] In this embodiment, the amount of helium accumulation resources is calculated using formula (10):

[0194] V he聚 =Φ×V he生 (10);

[0195] Where V he聚 Indicates the amount of helium accumulation, that is, the amount of helium accumulation resources, the unit is m 3 ;

[0196] Φ represents the transport and aggregation coefficient, in %;

[0197] V he生 Indicates the total amount of helium produced, in m 3 .

[0198] In this embodiment, the helium gas includes 3 He and 4 He, the method further comprises:

[0199] Determine the standard values ​​of 3He / 4He in crust-derived helium and mantle-derived helium. The standard values ​​are as follows:

[0200] Shell source helium value standard: 3 He / 4 He=2.0×10 -8 ;

[0201] Mantle-derived helium value standard: 3 He / 4 He=1.1×10 -8 ;

[0202] The standard for the value of crust-mantle mixed helium is 1.1×10 -8 < 3 He / 4 He<2.0×10 -8 .

[0203] In this embodiment, the helium gas includes 3 He and 4 He, the method further comprises: according to the binary composite formula, 3 He / 4 The He ratio is used to calculate the resource amounts of mantle-derived helium and crust-derived helium. The formula for calculating the ratio of crust-derived helium is as follows:

[0204]

[0205] The calculation formula for the proportion of mantle-derived helium resources is as follows:

[0206] I 4He =1-I 3He (12);

[0207] Where, 3 He represents the proportion of mantle-derived helium in helium, with the unit of %L;

[0208] 4 He represents the proportion of shell-derived helium in helium, in %L;

[0209] R represents the measured helium volume, in m 3 ;

[0210] R c Represents the volume of shell source helium, in m 3 ;

[0211] R m Represents the volume of mantle-derived helium, in m 3 .

[0212] FIG2 is a flow chart of a helium genesis resource evaluation method in one embodiment. It should be understood that, although the steps in the flow chart of FIG2 are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in FIG2 may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0213] FIG7 schematically shows a structural block diagram of a helium genesis resource evaluation device according to an embodiment of the present application.

[0214] In one embodiment, as shown in FIG7 , a helium genetic resource evaluation device 200 is provided, comprising an acquisition module 210, a first determination module 220, a second determination module 230, a third determination module 240, a fourth determination module 250, a fifth determination module 260, a sixth determination module 270, and a seventh determination module 280, wherein:

[0215] An acquisition module 210 is used to obtain the absolute age of the helium source rock in the target area, the density of the helium source rock, the content of radioactive elements in the helium source rock, and the decay constant of the radioactive elements in the helium source rock;

[0216] A first determination module 220 is used to determine the volume of the helium source rock in the target area;

[0217] a second determining module 230 for determining the content of undecayed parent isotopes in the helium source rock based on the density of the helium source rock, the content of radioactive elements in the helium source rock, and the volume of the helium source rock;

[0218] a third determining module 240 for determining the content of decayed daughter isotopes in the helium source rock based on the absolute age of the helium source rock, the decay constant of the radioactive elements in the helium source rock, and the content of the undecayed parent isotopes in the helium source rock;

[0219] A fourth determination module 250 is configured to determine the amount of helium in the helium source rock based on the content of the decayed daughter isotope in the helium source rock;

[0220] A fifth determining module 260 is configured to determine the total amount of helium generated by the helium source rock based on the amount of helium in the helium source rock;

[0221] The sixth determination module 270 is used to determine the migration and accumulation coefficient of helium in the helium source rock in the target area;

[0222] The seventh determination module 280 is configured to determine the amount of helium accumulation resources based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock.

[0223] The first determining module 220 includes:

[0224] A bottom depth determination module is used to determine the bottom depth of the helium source rock in the target area based on a preset temperature;

[0225] A top surface depth and distribution area determination module is used to determine the top surface depth and distribution area of ​​the helium source rock in the target area;

[0226] a thickness determination module, configured to determine the thickness of the helium source rock based on the bottom depth of the helium source rock and the top depth of the helium source rock;

[0227] The volume determination module is configured to determine the volume of the helium source rock based on the thickness of the helium source rock and the distribution area of ​​the helium source rock.

[0228] The helium genesis resource evaluation device includes a processor and a memory. The above-mentioned acquisition module 210, the first determination module 220, the second determination module 230, the third determination module 240, the fourth determination module 250, the fifth determination module 260, the sixth determination module 270 and the seventh determination module 280 are all stored in the memory as program units, and the processor executes the above-mentioned program modules stored in the memory to implement corresponding functions.

[0229] The processor includes a core, which retrieves the corresponding program unit from the memory. One or more cores can be set, and the helium origin resource evaluation method can be implemented by adjusting the core parameters.

[0230] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0231] An embodiment of the present application provides a storage medium having a program stored thereon, which, when executed by a processor, implements the above-mentioned helium genesis resource evaluation method.

[0232] FIG8 schematically shows an internal structure diagram of a computer device according to an embodiment of the present application.

[0233] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as shown in FIG8 . The computer device includes a processor A01, a network interface A02, a display screen A04, an input device A05, and a memory (not shown in the figure) connected via a system bus. The processor A01 of the computer device is used to provide computing and control capabilities. The memory of the computer device includes an internal memory A03 and a non-volatile storage medium A06. The non-volatile storage medium A06 stores an operating system B01 and a computer program B02. The internal memory A03 provides an environment for the operation of the operating system B01 and the computer program B02 in the non-volatile storage medium A06. The network interface A02 of the computer device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor A01, a method for evaluating helium genesis resources is implemented. The display screen A04 of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device A05 of the computer device can be a touch layer covering the display screen, or a button, trackball or touchpad set on the computer device casing, or an external keyboard, touchpad or mouse, etc.

[0234] Those skilled in the art will understand that the structure shown in FIG8 is merely a block diagram of a portion of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different arrangement of components.

[0235] In one embodiment, the helium genetic resource evaluation apparatus provided herein can be implemented as a computer program that can be run on a computer device as shown in FIG8 . The computer device's memory can store the various program modules that comprise the helium genetic resource evaluation apparatus, such as the acquisition module 210, first determination module 220, second determination module 230, third determination module 240, fourth determination module 250, fifth determination module 260, sixth determination module 270, and seventh determination module 280 shown in FIG7 . The computer program comprised of these various program modules causes a processor to execute the steps of the helium genetic resource evaluation method according to various embodiments of the present application as described in this specification.

[0236] The computer device shown in Figure 8 can execute step 110 through the acquisition module 210 in the helium genesis resource evaluation device shown in Figure 7, the computer device can execute step 120 through the first determination module 220, the computer device can execute step 130 through the second determination module 230, the computer device can execute step 140 through the third determination module 240, the computer device can execute step 150 through the fourth determination module 250, the computer device can execute step 160 through the fifth determination module 260, the computer device can execute step 170 through the sixth determination module 270, and the computer device can execute step 180 through the seventh determination module 280.

[0237] An embodiment of the present application provides a device, comprising a processor, a memory, and a program stored in the memory and executable on the processor. When the processor executes the program, the following steps are performed:

[0238] Step 110, obtaining the absolute age of the helium source rock in the target area, the density of the helium source rock, the content of radioactive elements in the helium source rock, and the decay constant of the radioactive elements in the helium source rock;

[0239] Step 120, determining the volume of the helium source rock in the target area;

[0240] Step 130: determining the content of undecayed parent isotopes in the helium source rock based on the density of the helium source rock, the content of radioactive elements in the helium source rock, and the volume of the helium source rock;

[0241] Step 140: determining the content of decayed daughter isotopes in the helium source rock based on the absolute age of the helium source rock, the decay constant of the radioactive elements in the helium source rock, and the content of the undecayed parent isotopes in the helium source rock;

[0242] Step 150, determining the amount of helium in the helium source rock based on the content of the decayed daughter isotopes in the helium source rock;

[0243] Step 160: determining the total amount of helium generated by the helium source rock based on the amount of helium in the helium source rock;

[0244] Step 170, determining the migration and accumulation coefficient of helium in the helium source rock in the target area;

[0245] Step 180: Determine the amount of helium accumulation resources based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock.

[0246] In one embodiment, step 120 includes:

[0247] Step 121, determining the bottom depth of the helium source rock in the target area based on a preset temperature;

[0248] Step 122, determining the top surface depth of the helium source rock in the target area and the distribution area of ​​the helium source rock;

[0249] Step 123: determining the thickness of the helium source rock based on the bottom depth of the helium source rock and the top depth of the helium source rock;

[0250] Step 124: Determine the volume of the helium source rock based on the thickness of the helium source rock and the distribution area of ​​the helium source rock.

[0251] In one embodiment, determining the bottom depth of the helium source rock in the target area includes:

[0252] The bottom depth of the helium source rock in the target area is determined based on the preset temperature.

[0253] In one embodiment, determining the bottom depth of the helium source rock in the target area based on the preset temperature includes:

[0254] The stratum depth corresponding to the preset temperature is determined as the bottom depth of the helium source rock, and the helium source rock includes granite and volcanic rock.

[0255] In one embodiment, the preset temperature range is 220°C to 240°C.

[0256] In one embodiment, determining the bottom depth, top depth, and distribution area of ​​the helium source rock in the target area includes:

[0257] The bottom depth, top depth and distribution area of ​​the helium source rock in the target area are determined based on seismic data and drilling data. The helium source rock includes coal seams and mud shale.

[0258] In one embodiment, determining the distribution area of ​​helium source rocks based on seismic data and drilling data includes:

[0259] For helium source rocks with unstable thickness or discontinuous distribution, the distribution area of ​​the helium source rocks is calculated using the small surface element integration method based on seismic data and drilling data.

[0260] In one embodiment, the formation depth corresponding to the preset temperature is determined as the bottom depth of the helium source rock by formula (1):

[0261] H 底 =(t 预设温度 -t 地表温度 ) / K+50(1);

[0262] Where H 底 Indicates the bottom depth of the helium source rock, in meters;

[0263] t 地表温度 Indicates the surface temperature in °C;

[0264] K represents the geothermal gradient, with the unit being ℃ / 100m.

[0265] In one embodiment, the thickness of the helium source rock is determined based on the bottom depth and the top depth of the helium source rock using formula (2):

[0266] h=H 底 -H 顶 (2);

[0267] Where h represents the thickness of the helium source rock, in meters;

[0268] H 底 Indicates the bottom depth of the helium source rock, in meters;

[0269] H 顶 Indicates the top depth of the helium source rock, in meters.

[0270] In one embodiment, the volume of the helium source rock is determined based on the thickness of the helium source rock and the distribution area of ​​the helium source rock using formula (3):

[0271] V = h × S (3);

[0272] Where V represents the volume of the helium source rock, in m 3 ;

[0273] h represents the thickness of the helium source rock, in meters;

[0274] S represents the distribution area of ​​helium source rock, in m 2 .

[0275] In one embodiment, the content of the undecayed parent isotope in the helium source rock is determined based on the density of the helium source rock, the content of the radioactive element in the helium source rock, and the volume of the helium source rock using formula (4):

[0276] P=v×ρ 源岩 ×x(4);

[0277] Where P represents the content of the undecayed parent isotope in the helium source rock, in mol;

[0278] v represents the volume of the helium source rock, in m 3 ;

[0279] ρ 源岩 Indicates the density of the helium source rock, in t / m 3 ;

[0280] x represents the content of radioactive elements in the helium source rock, in mol / g.

[0281] In one embodiment, the content of the decayed daughter isotope in the helium source rock is determined based on the absolute age of the helium source rock, the decay constant of the radioactive element in the helium source rock, and the content of the undecayed parent isotope in the helium source rock using formula (5):

[0282]

[0283] Where D represents the content of decayed daughter isotopes in the helium source rock, in mol;

[0284] λ represents the decay constant of the isotope of the radioactive element in the helium source rock, which is dimensionless;

[0285] t represents the absolute geological age of the helium source rock, in millions of years;

[0286] v represents the volume of the helium source rock, in m 3 ;

[0287] ρ 源岩 Indicates the density of the helium source rock, in t / m 3 ;

[0288] x represents the content of radioactive elements in the helium source rock, in mol / g.

[0289] In one embodiment, the radioactive elements in the helium source rock include: 238U and 232Th;

[0290] For 238U decay, the amount of helium in the helium source rock is determined based on the content of the decayed daughter isotope in the helium source rock using formula (6):

[0291] n=D×8 / 238(6);

[0292] For 232Th decay, the amount of helium in the helium source rock is determined based on the content of the decayed daughter isotope in the helium source rock using formula (7):

[0293] n=D×6 / 232(7);

[0294] Where n represents the amount of helium in the helium source rock, and D represents the content of the decayed daughter isotope in the helium source rock.

[0295] In one embodiment, the total amount of helium generated by the helium source rock is determined based on the amount of helium in the helium source rock using formula (8):

[0296] V He生 =n×M / ρ he (8);

[0297] Where V He生 Indicates the total amount of helium generated, that is, the amount of helium resources, the unit is m 3 ;

[0298] n represents the amount of helium in the helium source rock;

[0299] M represents the molar mass of the total amount of helium produced;

[0300] ρ he Indicates the density of helium, which is 0.1786 g / L.

[0301] In one embodiment, the migration and accumulation coefficient of helium in the helium source rock in the target area is determined by formula (9):

[0302] Φ=Φ1×Φ2 (9);

[0303] Wherein, Φ1 is the helium expulsion rate of the helium source rock, in %, and Φ2 is the degassing rate of water-soluble helium, in %.

[0304] In one embodiment, the amount of helium accumulation resources is determined based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock using formula (10):

[0305] V he聚 =Φ×V he生 (10);

[0306] Where V he聚 Indicates the amount of helium accumulation, that is, the amount of helium accumulation resources, the unit is m 3 ;

[0307] Φ represents the transport and aggregation coefficient, in %;

[0308] V he生 Indicates the total amount of helium produced, in m 3 .

[0309] In one embodiment, the helium includes 3He and 4He, and the method further includes: determining the resource amount of mantle-derived helium and crust-derived helium through the ratio of 3He / 4He according to a binary composite formula.

[0310] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0311] The present application is described with reference to the flow chart and / or block diagram of the method, device (system), and computer program product according to the embodiment of the present application. It should be understood that each flow process and / or box in the flow chart and / or block diagram and the combination of the flow process and / or box in the flow chart and / or block diagram can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processing machine or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for realizing the function specified in one flow chart flow or multiple flows and / or one box or multiple boxes of the block diagram.

[0312] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0313] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0314] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0315] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0316] Computer-readable media includes permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology for information storage. Information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase-change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include transitory computer-readable media such as modulated data signals and carrier waves.

[0317] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0318] The above are merely embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. A method for evaluating helium-derived resources, characterized in that: The method comprises: Obtain the absolute age, density, content of radioactive elements in the helium source rock, and decay constant of the radioactive elements in the helium source rock in the target area; Determine the volume of helium source rock in the target area; Determining the content of undecayed parent isotopes in the helium source rock based on the density of the helium source rock, the content of radioactive elements in the helium source rock, and the volume of the helium source rock; Determining the content of decayed daughter isotopes in the helium source rock based on the absolute age of the helium source rock, the decay constant of the radioactive elements in the helium source rock, and the content of the undecayed parent isotopes in the helium source rock; Determining the amount of helium in the helium source rock based on the content of the decayed daughter isotope in the helium source rock; Determining the total amount of helium generated by the helium source rock based on the amount of helium in the helium source rock; Determine the migration and accumulation coefficient of helium in the helium source rocks in the target area; Determining the amount of helium accumulation resources based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock; Wherein, determining the volume of the helium source rock in the target area includes: Determine the bottom depth of the helium source rock in the target area based on a preset temperature; Determine the top depth of the helium source rock in the target area and the distribution area of ​​the helium source rock; Determining the thickness of the helium source rock based on the bottom depth of the helium source rock and the top depth of the helium source rock; The volume of the helium source rock is determined based on the thickness of the helium source rock and the distribution area of ​​the helium source rock.

2. The method according to claim 1, characterized in that The determining of the bottom depth of the helium source rock in the target area based on the preset temperature includes: The stratum depth corresponding to the preset temperature is determined as the bottom depth of the helium source rock, and the helium source rock includes granite and volcanic rock.

3. The method according to claim 2, characterized in that The preset temperature range is 220°C to 240°C.

4. The method according to claim 1, wherein Determining the top surface depth of the helium source rock in the target area and the distribution area of ​​the helium source rock includes: Determine the top depth of the helium source rock and the distribution area of ​​the helium source rock based on seismic data and drilling data, wherein the helium source rock includes: coal seam and mud shale; Among them, the distribution area of ​​the helium source rock is determined based on seismic data and drilling data, including: for helium source rocks with unstable thickness or discontinuous distribution, the distribution area of ​​the helium source rock is calculated by the small surface element integration method based on seismic data and drilling data.

5. The method according to claim 3, characterized in that The depth of the formation corresponding to the preset temperature is determined as the bottom depth of the helium source rock by formula (1): H 底 =(t 预设温度 -t 地表温度 ) / K+50(1); Where H 底 Indicates the bottom depth of the helium source rock, in meters; t 地表温度 Indicates the surface temperature in °C; K represents the geothermal gradient, with the unit being ℃ / 100m.

6. The method according to claim 5, characterized in that The thickness of the helium source rock is determined based on the bottom depth and top depth of the helium source rock using formula (2): h=H 底 -H 顶 (2); Where h represents the thickness of the helium source rock, in meters; H 底 Indicates the bottom depth of the helium source rock, in meters; H 顶 Indicates the top depth of the helium source rock, in meters.

7. The method according to claim 6, characterized in that The volume of the helium source rock is determined based on the thickness of the helium source rock and the distribution area of ​​the helium source rock using formula (3): V = h × S (3); Where V represents the volume of the helium source rock, in m 3 ; h represents the thickness of the helium source rock, in meters; S represents the distribution area of ​​helium source rock, in m 2 .

8. The method according to claim 7, characterized in that The content of the decayed daughter isotope in the helium source rock is determined by formula (5) based on the absolute age of the helium source rock, the decay constant of the radioactive elements in the helium source rock, and the content of the undecayed parent isotope in the helium source rock: Where D represents the content of decayed daughter isotopes in the helium source rock, in mol; v×ρ 源岩 ×x represents the content of the undecayed parent isotope in the helium source rock; λ represents the decay constant of the isotope of the radioactive element in the helium source rock, which is dimensionless; t represents the absolute geological age of the helium source rock, in millions of years; v represents the volume of the helium source rock, in m 3 ; ρ 源岩 Indicates the density of the helium source rock, in t / m 3 ; x represents the content of radioactive elements in the helium source rock, in mol / g.

9. The method according to claim 8, characterized in that Radioactive elements in helium source rocks include: 238U and 232Th; For 238U decay, the amount of helium in the helium source rock is determined based on the content of the decayed daughter isotope in the helium source rock using formula (6): n=D×8 / 238(6); For 232Th decay, the amount of helium in the helium source rock is determined based on the content of the decayed daughter isotope in the helium source rock using formula (7): n=D×6 / 232(7); Where n represents the amount of helium in the helium source rock, and D represents the content of the decayed daughter isotope in the helium source rock.

10. The method according to claim 9, characterized in that The total amount of helium generated by the helium source rock is determined based on the amount of helium in the helium source rock using formula (8): V He生 =n×M / ρ he (8); Where V He生 Indicates the total amount of helium generated, that is, the amount of helium resources, the unit is m 3 ; n represents the amount of helium in the helium source rock; M represents the molar mass of the total amount of helium produced; ρ he Indicates the density of helium, which is 0.1786 g / L.

11. The method according to claim 10, characterized in that The migration and accumulation coefficient of helium in the helium source rock in the target area is determined by formula (9): Φ=Φ1×Φ2 (9); Wherein, Φ1 is the helium expulsion rate of the helium source rock, in %; Φ2 is the degassing rate of water-soluble helium, in %; The amount of helium accumulation resources is determined based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock using formula (10): In he聚 =Φ×H he生 (10); Where V he聚 Indicates the amount of helium accumulation, that is, the amount of helium accumulation resources, the unit is m 3 ; Φ represents the transport and aggregation coefficient, in %; V he生 Indicates the total amount of helium produced, in m 3 .

12. The method according to claim 1, characterized in that The helium gas includes 3He and 4He, and the method further includes: According to the binary composite formula, the resource amounts of mantle-derived helium and crust-derived helium are determined by the ratio of 3He / 4He.

13. A helium gas origin resource evaluation device, characterized in that: The device comprises: An acquisition module is used to obtain the absolute age of the helium source rock in the target area, the density of the helium source rock, the content of radioactive elements in the helium source rock, and the decay constant of the radioactive elements in the helium source rock; A first determination module is used to determine the volume of the helium source rock in the target area; a second determination module, configured to determine the content of undecayed parent isotopes in the helium source rock based on the density of the helium source rock, the content of radioactive elements in the helium source rock, and the volume of the helium source rock; a third determination module, configured to determine the content of decayed daughter isotopes in the helium source rock based on the absolute age of the helium source rock, the decay constant of the radioactive elements in the helium source rock, and the content of undecayed parent isotopes in the helium source rock; a fourth determination module, configured to determine the amount of helium in the helium source rock based on the content of the decayed daughter isotope in the helium source rock; a fifth determining module, configured to determine the total amount of helium generated by the helium source rock based on the amount of helium in the helium source rock; The sixth determination module is used to determine the migration and accumulation coefficient of helium in the helium source rock in the target area; a seventh determination module, configured to determine the amount of helium accumulation resources based on the migration and accumulation coefficient and the total amount of helium generated by the helium source rock; The first determining module includes: A bottom depth determination module is used to determine the bottom depth of the helium source rock in the target area based on a preset temperature; A top surface depth and distribution area determination module is used to determine the top surface depth and distribution area of ​​the helium source rock in the target area; a thickness determination module, configured to determine the thickness of the helium source rock based on the bottom depth of the helium source rock and the top depth of the helium source rock; The volume determination module is configured to determine the volume of the helium source rock based on the thickness of the helium source rock and the distribution area of ​​the helium source rock.

14. A processor, characterized in that: The method is configured to execute the helium origin resource evaluation method according to any one of claims 1 to 12.

15. A machine-readable storage medium having instructions stored thereon, characterized in that: When the instruction is executed by a processor, the processor is configured to perform the helium genetic resource evaluation method according to any one of claims 1 to 12.