Investigation method and system for natural hydrocarbon, helium and various associated gas reservoirs

Abstract

The invention provides an exploration method and system for natural zero hydrocarbon, helium and various associated gas reservoirs. The method comprises the steps that a sampling device is used for collecting gas samples at preset first sampling points and repeated sample collecting points; collecting a gas sample to determine various gas concentration data of each first sampling point and various gas concentration data of each repeated sample collection point; detecting the gas concentration data of each first sampling point by using the gas concentration data of each repeated sample collection point to obtain the detected gas concentration data corresponding to each sample; drawing a geochemical comprehensive anomaly map of the sampling area according to the detected gas concentration data corresponding to each sample; and determining a target region range of natural zero hydrocarbon, and / or helium, and / or various associated gas reservoirs according to the comprehensive anomaly map. According to the technical scheme provided by the invention, various new energy gas reservoir types in the deep geological structure and the target regions corresponding to the gas reservoir types can be quickly identified and delineated.

Description

Technical Field

[0001] The present application relates to the field of new energy resource exploration and exploitation technology in the resource and environment classification, and in particular to an exploration method and system for natural zero-carbon hydrogen, helium and various associated gas reservoirs. Background Art

[0002] Natural hydrogen is the most important breakthrough technology in energy science in the past decade. The exploration and mining of natural hydrogen is crucial to solving global climate problems and achieving high-quality, low-carbon economic development. The exploration of natural hydrogen is an emerging technology. Natural hydrogen is formed in the deep earth through mantle degassing, serpentinization or radiolysis, and is enriched in shallow strata through migration channels. The exploration and mining of these enriched gases can provide low-cost, stable and reliable hydrogen. It has obvious cost advantages over hydrogen production by electrolysis of water, and the production process consumes very little energy and produces almost no carbon emissions. It is a truly zero-carbon renewable energy.

[0003] In the process of exploring natural hydrogen, it is often found that hydrogen and helium are enriched together. Helium is extremely rare, its global distribution is extremely uneven, its economic value is extremely high, and it is a resource with strategic value.

[0004] Gas geochemical methods for hydrogen, helium and other associated gas reservoirs play an important role in the study of active faults. Gas geochemistry is mainly used to study the formation, migration, aggregation and distribution of gaseous elements and compounds. The fillings of the cracks in active faults are loose and have good gas conductivity, while the activity of concealed faults will change the structure of the overlying soil, causing some gas elements to be relatively enriched above the concealed faults. The formation mechanism of soil gas anomalies in fault zones is that the deep underground is rich in gas components, which continuously diffuse and migrate to the surface through fault channels. Concealed faults below the surface provide channels for the migration of deep crust or mantle gas to the surface, resulting in increased soil gas concentrations in the fault zones and their vicinity. Therefore, soil gas concentration anomalies can be used to discover concealed faults and the enclosed structures surrounded by them, and to discover gas reservoirs.

[0005] The gas reservoir exploration proposed by the existing technology only explores hydrogen reservoirs, resulting in insufficient information, making it difficult to accurately identify multiple types of new energy gas reservoirs, and the accuracy is low. Summary of the invention

[0006] The present application provides a method and system for the exploration of natural zero-carbon hydrogen, helium and various associated gas reservoirs, so as to at least solve the technical problem of difficulty in accurately identifying various types of gas reservoirs and low accuracy.

[0007] The first embodiment of the present application proposes a method for exploring natural zero-carbon hydrogen, helium and various associated gas reservoirs, the method comprising:

[0008] Using a sampling device to collect gas samples at each preset first sampling point and each repeated sampling point;

[0009] Based on the gas samples collected at the first sampling points and the repeated sampling points, determine the concentration data of various gases at the first sampling points and the concentration data of various gases at the repeated sampling points;

[0010] Using the various gas concentration data of the repeated sample collection points, the various gas concentration data of the first sampling points are tested to obtain the various gas concentration data corresponding to each sample after the test of each first sampling point;

[0011] Draw a comprehensive geochemical anomaly map of the sampling area based on the gas concentration data corresponding to each sample after inspection;

[0012] The target area range of natural zero-carbon hydrogen, and / or helium, and / or various associated gas reservoirs is determined based on the comprehensive geochemical anomaly map.

[0013] Preferably, the sampling device comprises: a threaded sampler, a silicone tube, a sealing valve, a filter, an air pump and an aluminum foil peritoneal bag;

[0014] The method of using the sampling device to collect gas samples at each preset first sampling point and each repeated sampling point comprises:

[0015] Use a 1.2-meter-long, 2.6-cm-diameter steel chisel to drill a 1-meter-deep hole in the soil at each first sampling point and each repeated sampling point, insert the threaded sampler into the hole and tighten it to achieve a sealing degree, then connect the silicone tube in the threaded sampler to the sealing valve and filter, and use the connected vacuum pump to draw 200 ml of gas into the aluminum foil peritoneal bag until the aluminum foil peritoneal bag is full, tighten the air bag sealing valve, and complete the sampling.

[0016] Furthermore, the method of collecting gas samples at the first sampling points and the repeated sampling points to determine the concentration data of various gases at the first sampling points and the concentration data of various gases at the repeated sampling points includes:

[0017] 10m CP-Mo l Sieve using gas chromatograph The backflush channel analyzes the gas samples collected at each first sampling point and each repeated sampling point to obtain the He, Ne, H2, O2, N2, CH4, and CO concentration data of each first sampling point and the He, Ne, H2, O2, N2, CH4, and CO concentration data of each repeated sampling point;

[0018] The gas samples collected at each first sampling point and each repeated sample collection point were analyzed using the 10m CP-PoraPLOT U channel of the gas chromatograph to obtain the CO2, C2H6, H2S, and C3H8 concentration data of each first sampling point and the CO2, C2H6, H2S, and C3H8 concentration data of each repeated sample collection point.

[0019] Further, the various gas concentration data of each repeated sampling point are used to test the various gas concentration data of each first sampling point, and the various gas concentration data corresponding to each sample after the first sampling point test are obtained.

[0020] Determine the errors between the concentration data of each type of gas at each first sampling point and the concentration data of each type of gas at the corresponding repeated sampling point;

[0021] Determine whether all errors are less than the error threshold. If so, the test passes. Otherwise, re-sample.

[0022] Furthermore, the geochemical comprehensive anomaly map of the sampling area is drawn according to the gas concentration data corresponding to each sample after inspection, including:

[0023] Determine the abnormal lower limit of concentration of each type of gas according to the gas concentration data corresponding to each sample after inspection;

[0024] A geochemical single-index anomaly map of each gas is drawn based on the lower limit of the concentration anomaly of each gas, and a geochemical comprehensive anomaly map is generated based on the geochemical single-index anomaly map of each gas.

[0025] Furthermore, the target area range of natural zero-carbon hydrogen, and / or helium, and / or multiple associated gas reservoirs is determined according to the geochemical comprehensive anomaly map, including:

[0026] Determine each non-leakage area based on the geochemical comprehensive anomaly map;

[0027] Determining the enrichment factor of each type of gas at each of the first sampling points;

[0028] According to the enrichment coefficient of each gas at each of the first sampling points, each non-leakage area where a gas reservoir exists is screened out in each non-leakage area, and the non-leakage area where the gas reservoir exists is screened out as an initial target area;

[0029] Determine the correlation value between various gases in each initial target area according to the concentration data of various gases at each first sampling point at the boundary of each initial target area;

[0030] Determine the gas reservoir type of each initial target area based on the correlation values ​​between various gases in each initial target area;

[0031] Each initial target area is taken as the target area range of its corresponding gas reservoir type;

[0032] Among them, the gas reservoir types include: natural zero-carbon hydrogen reservoirs, helium reservoirs, and various associated gas reservoirs.

[0033] The second embodiment of the present application provides an exploration system for natural zero-carbon hydrogen, helium and various associated gas reservoirs, including:

[0034] A collection module, used for collecting gas samples at each preset first sampling point and each repeated sampling point by using a sampling device;

[0035] A first determination module, configured to determine the concentration data of various gases at each first sampling point and the concentration data of various gases at each repeated sampling point based on the gas samples collected at each first sampling point and each repeated sampling point;

[0036] A testing module, used to test the various gas concentration data of each first sampling point using the various gas concentration data of each repeated sample collection point, to obtain the various gas concentration data corresponding to each sample after the test of each first sampling point;

[0037] A drawing module is used to draw a geochemical anomaly map of the sampling area based on the gas concentration data corresponding to each sample after inspection;

[0038] The second determination module is used to determine the target area range of natural zero-carbon hydrogen, and / or helium, and / or multiple associated gas reservoirs according to the geochemical comprehensive anomaly map.

[0039] Preferably, the sampling device comprises: a threaded sampler, a silicone tube, a sealing valve, a filter, an air pump and an aluminum foil peritoneal bag;

[0040] The method of using the sampling device to collect gas samples at each preset first sampling point and each repeated sampling point comprises:

[0041] Use a 1.2-meter-long, 2.6-cm-diameter steel chisel to drill a 1-meter-deep hole in the soil at each first sampling point and each repeated sampling point, insert the threaded sampler into the hole and tighten it to achieve a sealing degree, then connect the silicone tube in the threaded sampler to the sealing valve and filter, and use the connected vacuum pump to draw 200 ml of gas into the aluminum foil peritoneal bag until the aluminum foil peritoneal bag is full, tighten the air bag sealing valve, and complete the sampling.

[0042] The third aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method described in the first aspect is implemented.

[0043] A fourth aspect of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method described in the first aspect of the present application.

[0044] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0045] The present application proposes an exploration method and system for natural zero-carbon hydrogen, helium and various associated gas reservoirs, the method comprising: using a sampling device to collect gas samples at each preset first sampling point and each repeated sampling point; based on the gas samples collected at each first sampling point and each repeated sampling point, determine the various gas concentration data of each first sampling point and the various gas concentration data of each repeated sampling point; use the various gas concentration data of each repeated sampling point to test the various gas concentration data of each first sampling point, and obtain the various gas concentration data corresponding to each sample after the test of each first sampling point; draw a geochemical comprehensive anomaly map of the sampling area according to the various gas concentration data corresponding to each sample after the test; determine the target area range of natural zero-carbon hydrogen, and / or helium, and / or various associated gas reservoirs according to the geochemical comprehensive anomaly map. The technical solution proposed in the present application can quickly identify and delineate various new energy gas reservoir types existing in deep geological structures and the target areas corresponding to each gas reservoir type.

[0046] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0048] Figure 1 A flow chart of a method for exploring natural zero-carbon hydrogen, helium and various associated gas reservoirs provided according to one embodiment of the present application;

[0049] Figure 2 A schematic diagram of a sampling device provided according to an embodiment of the present application;

[0050] Figure 3 10m CP-Mo l S ieve provided according to one embodiment of the present application Schematic diagram of the backflush channel analysis of 7 permanent gas chromatograms;

[0051] Figure 4 A schematic diagram of a chromatogram of carbon dioxide, hydrogen sulfide, ethane and propane analyzed by a 10 m CP-PoraPLOT U channel according to an embodiment of the present application;

[0052] Figure 5 A geochemical single indicator anomaly map provided according to an embodiment of the present application;

[0053] Figure 6 A geochemical integrated anomaly map provided according to one embodiment of the present application;

[0054] Figure 7 A schematic diagram of target area range identification provided according to an embodiment of the present application;

[0055] Figure 8 The present invention is a structural diagram of a system for exploring natural zero-carbon hydrogen, helium and various associated gas reservoirs provided according to one embodiment of the present application. DETAILED DESCRIPTION

[0056] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0057] The present application proposes an exploration method and system for natural zero-carbon hydrogen, helium and various associated gas reservoirs, the method comprising: using a sampling device to collect gas samples at each preset first sampling point and each repeated sampling point; based on the gas samples collected at each first sampling point and each repeated sampling point, determine the various gas concentration data of each first sampling point and the various gas concentration data of each repeated sampling point; use the various gas concentration data of each repeated sampling point to test the various gas concentration data of each first sampling point, and obtain the various gas concentration data corresponding to each sample after the test of each first sampling point; draw a geochemical comprehensive anomaly map of the sampling area according to the various gas concentration data corresponding to each sample after the test; determine the target area range of natural zero-carbon hydrogen, and / or helium, and / or various associated gas reservoirs according to the geochemical comprehensive anomaly map. The technical solution proposed in the present application can quickly identify and delineate various new energy gas reservoir types existing in deep geological structures and the target areas corresponding to each gas reservoir type.

[0058] The following describes the exploration method and system for natural zero-carbon hydrogen, helium and various associated gas reservoirs according to an embodiment of the present application with reference to the accompanying drawings.

[0059] Embodiment 1

[0060] Figure 1 A flow chart of a method for exploring natural zero-carbon hydrogen, helium and various associated gas reservoirs provided according to one embodiment of the present application is shown in FIG. Figure 1 As shown, the method includes:

[0061] Step 1: Use a sampling device to collect gas samples at each preset first sampling point and each repeated sampling point.

[0062] It should be noted that if Figure 2 As shown, the sampling device includes: a threaded sampler, a silicone tube, a sealing valve, a filter, an air pump and an aluminum foil peritoneal bag;

[0063] The method of using the sampling device to collect gas samples at each preset first sampling point and each repeated sampling point comprises:

[0064] Use a 1.2-meter-long, 2.6-cm-diameter steel chisel to drill a 1-meter-deep hole in the soil at each first sampling point and each repeated sampling point, insert the threaded sampler into the hole and tighten it to achieve a sealing degree, then connect the silicone tube in the threaded sampler to the sealing valve and filter, and use the connected vacuum pump to draw 200 ml of gas into the aluminum foil peritoneal bag until the aluminum foil peritoneal bag is full, tighten the air bag sealing valve, and complete the sampling.

[0065] It should be noted that a 1.2-meter-long, 2.6-cm-diameter steel chisel was used to drill a 1-meter-deep hole in the soil at each first sampling point and each repeated sampling point. The sealing valve and filter connected with a silicone tube were connected to the threaded sampler in advance, and then the threaded sampler was quickly inserted into the hole and tightened to achieve a sealing degree. The vacuum pump was then connected, the sealing valve connected to the threaded sampler was opened, and 200 ml of gas was drawn into the aluminum foil peritoneal bag until the aluminum foil peritoneal bag was full. The air bag sealing valve was tightened to complete the sampling.

[0066] It should be noted that the sampling point is set in an area with no pollution at a depth of one meter underground.

[0067] A repeated sampling point is set every 10 first sampling points, and the distance between the repeated sampling point and the first sampling point is 0.5-1.0 meter.

[0068] Step 2: Based on the gas samples collected at the first sampling points and the repeated sampling points, the concentration data of various gases at the first sampling points and the concentration data of various gases at the repeated sampling points are determined.

[0069] In the embodiment of the present disclosure, step 2 specifically includes:

[0070] 10m CP-Mo l Sieve using gas chromatograph The backflush channel analyzes the gas samples collected at each first sampling point and each repeated sampling point to obtain the He, Ne, H2, O2, N2, CH4, and CO concentration data of each first sampling point and the He, Ne, H2, O2, N2, CH4, and CO concentration data of each repeated sampling point, such as Figure 3As shown, 1 is He, 2 is Ne, 3 is H2, 4 is O2, 5 is N2, 6 is CH4, and 7 is CO;

[0071] The gas samples collected at each first sampling point and each repeated sampling point were analyzed using the 10m CP-PoraPLOT U channel of the gas chromatograph to obtain the CO2, C2H6, H2S, and C3H8 concentration data of each first sampling point and the CO2, C2H6, H2S, and C3H8 concentration data of each repeated sampling point, such as Figure 4 As shown in the figure, 1 is CO2, 2 is C2H6, 3 is H2S, and 4 is C3H8.

[0072] It should be noted that the collected gas samples were quickly analyzed using a gas chromatograph in the on-site laboratory with an accuracy of ppm level. The chromatographic column was 10m CP-Mo lSieve The relevant standards and technical detection limits for the backflush channel and the 10 m CP-PoraPLOT U channel were typical peak area repeatability (RSD%) < 0.5% and analysis time < 120 s.

[0073] Step 3: Using the various gas concentration data of the repeated sample collection points, the various gas concentration data of the first sampling points are tested to obtain the various gas concentration data corresponding to each sample after the first sampling points are tested.

[0074] In the embodiment of the present disclosure, step 3 specifically includes:

[0075] Determine the errors between the concentration data of each type of gas at each first sampling point and the concentration data of each type of gas at the corresponding repeated sampling point;

[0076] Determine whether all errors are less than the error threshold. If so, the test passes. Otherwise, re-sample.

[0077] It should be noted that it is necessary to determine whether the error percentage RD% of the various gas concentration data at the repeated sampling points and the various gas concentration data at the corresponding first sampling points is less than or equal to 30%. If so, the test passes; otherwise, resampling is performed at the first sampling points corresponding to the repeated sampling points.

[0078] Among them, RD%=|(ab) / (a+b)×100%|, where a is the concentration data of gas A in the first sampling point, and b is the concentration data of gas A in the repeated sampling point.

[0079] Step 4: Draw a comprehensive geochemical anomaly map of the sampling area based on the gas concentration data corresponding to each sample after inspection.

[0080] In the embodiment of the present disclosure, step 4 specifically includes:

[0081] 4-1: Determine the abnormal lower limit of concentration of each type of gas based on the gas concentration data corresponding to each sample after inspection;

[0082] The calculation formula for the abnormal lower limit of the concentration of each type of gas is as follows:

[0083] Ca i =M i +2s i

[0084] Where Ca i is the abnormal lower limit of the concentration of the i-th type of gas, s i is the standard deviation of the i-th type of gas, M i is the arithmetic mean or geometric mean of the i-th type of gas, where if the gas concentration data conforms to the normal distribution, M is the arithmetic mean; otherwise, if the gas concentration data conforms to the lognormal distribution, M is the geometric mean.

[0085] Wherein, the standard deviation s of the i-th type of gas i The calculation formula is as follows:

[0086]

[0087] In the formula, x i is the concentration data of the i-th type of gas at each first sampling point, is the mean value of the concentration data of the i-th gas, and N is the total number of the first sampling points.

[0088] 4-2: Drawing geochemical single indicator anomaly maps of various gases based on the lower limit values ​​of the concentration anomalies of various gases, and generating geochemical comprehensive anomaly maps based on the geochemical single indicator anomaly maps of various gases.

[0089] It should be noted that, with the lower limit of the concentration anomaly of each gas as the limit, the concentration anomaly of each gas is plotted into a geochemical single index anomaly map using software such as ArcGIS or MapGIS to obtain a geochemical single index anomaly map of each gas, such as Figure 5 As shown;

[0090] It should be noted that the geochemical single indicator anomaly maps of various gases are placed on a map with different colors or lines to form a geochemical comprehensive anomaly map such as Figure 6 As shown, in order to identify the spatial relationship between different gas indicators.

[0091] Step 5: Determine the target area range of natural zero-carbon hydrogen, and / or helium, and / or various associated gas reservoirs based on the comprehensive geochemical anomaly map.

[0092] In the embodiment of the present disclosure, step 5 specifically includes:

[0093] 5-1: Determine each non-leakage area based on the geochemical comprehensive anomaly map;

[0094] 5-2: Determine the enrichment factor of each type of gas at each of the first sampling points;

[0095] It should be noted that the enrichment factor of each gas at each of the first sampling points is determined using the formula EF=X / Y, where X is the concentration value of a certain indicator at a first sampling point, and Y is the average concentration value of a certain indicator at a first sampling point.

[0096] 5-3: Screening out non-leakage areas with gas reservoirs in the non-leakage areas according to the enrichment coefficients of various gases at the first sampling points, and using the non-leakage areas with gas reservoirs screened out as initial target areas;

[0097] It should be noted that the first sampling points corresponding to the boundaries of each non-leakage area are determined, and then the number of enrichment factors of each type of gas at each of the first sampling points that is greater than or equal to the first enrichment factor threshold is determined, and whether the number is greater than or equal to 1. If so, it is determined that there is a gas reservoir in the non-leakage area.

[0098] It should be noted that if the enrichment coefficients of various gases at the first sampling points corresponding to the boundaries of the non-leakage areas are greater than 3-5, the more data there are, the larger the abnormal range is, indicating that the possibility of the existence of a gas reservoir is greater. At the same time, the comparison of the enrichment coefficients of various indicators is also an important indicator for judging the type of gas reservoir. In the same abnormal area, the one with the highest enrichment coefficient may be the main gas reservoir type, and the others may be associated components.

[0099] 5-4: Determine the correlation value between various gases in each initial target area according to the concentration data of various gases at each first sampling point at the boundary of each initial target area;

[0100] It should be noted that the correlation values ​​between the various gas concentration data of the first sampling points at the boundary of the hth initial target area are determined respectively, and h belongs to 1-H, where H is the number of initial target areas.

[0101] 5-5: Determine the gas reservoir type of each initial target area based on the correlation values ​​between various gases in each initial target area;

[0102] It should be noted that since the indicators with significant correlation have causal connections, correlation analysis is to judge the correlation between indicators through the p-value between two indicators. Interrelated indicators may come from the same source, such as hydrogen and helium gas reservoirs, H2-rich carbon dioxide gas reservoirs, etc., thereby determining the gas reservoir type.

[0103] Among the correlation values ​​corresponding to the initial target area, gas groups with correlation values ​​less than 0.05 are screened out, and the types of the gas groups are used as the gas reservoir types of the initial target area.

[0104] Among them, when the gas group is hydrogen, the gas reservoir type is zero carbon hydrogen, when the gas group is helium, the gas reservoir type is helium reservoir, and when the gas group is CH4, C2H6, C3H8, the gas reservoir type is natural gas reservoir.

[0105] 5-6: Each initial target area is used as the target area range of its corresponding gas reservoir type;

[0106] Among them, the gas reservoir types include: natural zero-carbon hydrogen reservoirs, helium reservoirs, and various associated gas reservoirs.

[0107] For example, the comprehensive anomaly map shows the intensity and distribution of target gas (such as hydrogen) leakage on the surface. When the gas index anomalies are circular or subcircular around the non-abnormal area (non-leakage area), there may be a closed structure deep in this area, thus determining the target area range. The possible H2 reservoir existence range is inferred by H2 and CO2 measurements, such as Figure 7 shown.

[0108] In summary, the exploration method for natural zero-carbon hydrogen, helium and various associated gas reservoirs proposed in this embodiment can quickly and accurately identify and delineate various new energy gas reservoir types existing in deep geological structures and the target areas corresponding to each gas reservoir type.

[0109] Embodiment 2

[0110] Figure 8 The structure diagram of a system for exploring natural zero-carbon hydrogen, helium and various associated gas reservoirs provided according to one embodiment of the present application is as follows: Figure 8 As shown, the system comprises:

[0111] The collection module 100 is used to collect gas samples at each preset first sampling point and each repeated sampling point using a sampling device;

[0112] The sampling device comprises: a threaded sampler, a silicone tube, a sealing valve, a filter, an air pump and an aluminum foil peritoneal bag;

[0113] The method of using the sampling device to collect gas samples at each preset first sampling point and each repeated sampling point comprises:

[0114] Use a 1.2-meter-long, 2.6-cm-diameter steel chisel to drill a 1-meter-deep hole in the soil at each first sampling point and each repeated sampling point, insert the threaded sampler into the hole and tighten it to achieve a sealing degree, then connect the silicone tube in the threaded sampler to the sealing valve and filter, and use the connected vacuum pump to draw 200 ml of gas into the aluminum foil peritoneal bag until the aluminum foil peritoneal bag is full, tighten the air bag sealing valve, and complete the sampling.

[0115] A first determination module 200 is used to determine the concentration data of various gases at each first sampling point and the concentration data of various gases at each repeated sampling point based on the gas samples collected at each first sampling point and each repeated sampling point;

[0116] The inspection module 300 is used to inspect the various gas concentration data of each first sampling point using the various gas concentration data of each repeated sample collection point, and obtain the various gas concentration data corresponding to each sample after the inspection of each first sampling point;

[0117] A drawing module 400 is used to draw a geochemical anomaly map of the sampling area according to various gas concentration data corresponding to each sample after inspection;

[0118] The second determination module 500 is used to determine the target area range of natural zero-carbon hydrogen, and / or helium, and / or multiple associated gas reservoirs according to the geochemical comprehensive anomaly map.

[0119] In the embodiment of the present disclosure, the first determining module 200 is further configured to:

[0120] 10m CP-Mo l Sieve using gas chromatograph The backflush channel analyzes the gas samples collected at each first sampling point and each repeated sampling point to obtain the He, Ne, H2, O2, N2, CH4, and CO concentration data of each first sampling point and the He, Ne, H2, O2, N2, CH4, and CO concentration data of each repeated sampling point;

[0121] The gas samples collected at each first sampling point and each repeated sample collection point were analyzed using the 10m CP-PoraPLOT U channel of the gas chromatograph to obtain the CO2, C2H6, H2S, and C3H8 concentration data of each first sampling point and the CO2, C2H6, H2S, and C3H8 concentration data of each repeated sample collection point.

[0122] In the embodiment of the present disclosure, the inspection module 300 is also used for:

[0123] Determine the errors between the concentration data of each type of gas at each first sampling point and the concentration data of each type of gas at the corresponding repeated sampling point;

[0124] Determine whether all errors are less than the error threshold. If so, the test passes. Otherwise, re-sample.

[0125] In the embodiment of the present disclosure, the drawing module 400 is further used for:

[0126] Determine the abnormal lower limit of concentration of each type of gas according to the gas concentration data corresponding to each sample after inspection;

[0127] A geochemical single-index anomaly map of each gas is drawn based on the lower limit of the concentration anomaly of each gas, and a geochemical comprehensive anomaly map is generated based on the geochemical single-index anomaly map of each gas.

[0128] In the embodiment of the present disclosure, the second determining module 500 is further configured to:

[0129] Determine each non-leakage area based on the geochemical comprehensive anomaly map;

[0130] Determining the enrichment factor of each type of gas at each of the first sampling points;

[0131] According to the enrichment coefficient of each gas at each of the first sampling points, each non-leakage area where a gas reservoir exists is screened out in each non-leakage area, and the non-leakage area where the gas reservoir exists is screened out as an initial target area;

[0132] Determine the correlation value between various gases in each initial target area according to the concentration data of various gases at each first sampling point at the boundary of each initial target area;

[0133] Determine the gas reservoir type of each initial target area based on the correlation values ​​between various gases in each initial target area;

[0134] Each initial target area is taken as the target area range of its corresponding gas reservoir type;

[0135] Among them, the gas reservoir types include: natural zero-carbon hydrogen reservoirs, helium reservoirs, and various associated gas reservoirs.

[0136] In summary, the exploration system for natural zero-carbon hydrogen, helium and various associated gas reservoirs proposed in this embodiment can quickly and accurately identify and delineate various new energy gas reservoir types existing in deep geological structures and the target areas corresponding to each gas reservoir type.

[0137] Embodiment 3

[0138] In order to implement the above embodiments, the present disclosure further proposes an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method described in Embodiment 1 is implemented.

[0139] Embodiment 4

[0140] In order to implement the above embodiments, the present disclosure further proposes a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the method described in the first embodiment is implemented.

[0141] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0142] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0143] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A method for exploring natural zero-carbon hydrogen, helium and various associated gas reservoirs, characterized in that: The method comprises: Using a sampling device to collect gas samples at each preset first sampling point and each repeated sampling point; Based on the gas samples collected at the first sampling points and the repeated sampling points, determine the concentration data of various gases at the first sampling points and the concentration data of various gases at the repeated sampling points; Using the various gas concentration data of the repeated sample collection points, the various gas concentration data of the first sampling points are tested to obtain the various gas concentration data corresponding to each sample after the test of each first sampling point; Draw a comprehensive geochemical anomaly map of the sampling area based on the gas concentration data corresponding to each sample after inspection; The target area range of natural zero-carbon hydrogen, and / or helium, and / or various associated gas reservoirs is determined based on the comprehensive geochemical anomaly map.

2. The method according to claim 1, characterized in that The sampling device comprises: a threaded sampler, a silicone tube, a sealing valve, a filter, an air pump and an aluminum foil peritoneal bag; The method of collecting gas samples at each preset first sampling point and each repeated sampling point using a sampling device comprises: Use a 1.2-meter-long, 2.6-cm-diameter steel chisel to drill a 1-meter-deep hole in the soil at each first sampling point and each repeated sampling point, insert the threaded sampler into the hole and tighten it to achieve a sealing degree, then connect the silicone tube in the threaded sampler to the sealing valve and filter, and use the connected vacuum pump to draw 200 ml of gas into the aluminum foil peritoneal bag until the aluminum foil peritoneal bag is full, tighten the air bag sealing valve, and complete the sampling.

3. The method according to claim 2, characterized in that The method of collecting gas samples at each first sampling point and each repeated sampling point to determine the concentration data of various gases at each first sampling point and the concentration data of various gases at each repeated sampling point includes: Using the 10m CP-MolSieve gas chromatograph The backflush channel analyzes the gas samples collected at each first sampling point and each repeated sampling point to obtain the He, Ne, H2, O2, N2, CH4, and CO concentration data of each first sampling point and the He, Ne, H2, O2, N2, CH4, and CO concentration data of each repeated sampling point; The gas samples collected at each first sampling point and each repeated sample collection point were analyzed using the 10m CP-PoraPLOT U channel of the gas chromatograph to obtain the CO2, C2H6, H2S, and C3H8 concentration data of each first sampling point and the CO2, C2H6, H2S, and C3H8 concentration data of each repeated sample collection point.

4. The method according to claim 3, characterized in that The gas concentration data of each first sampling point are tested by using the gas concentration data of each repeated sampling point to obtain the gas concentration data of each sample after the test of each first sampling point. Determine the errors between the concentration data of each type of gas at each first sampling point and the concentration data of each type of gas at the corresponding repeated sampling point; Determine whether all errors are less than the error threshold. If so, the test passes; otherwise, re-sample.

5. The method according to claim 3, characterized in that The geochemical comprehensive anomaly map of the sampling area is drawn according to the gas concentration data corresponding to each sample after inspection, including: Determine the abnormal lower limit of concentration of each type of gas according to the gas concentration data corresponding to each sample after inspection; A geochemical single-index anomaly map of each gas is drawn based on the lower limit of the concentration anomaly of each gas, and a geochemical comprehensive anomaly map is generated based on the geochemical single-index anomaly map of each gas.

6. The method according to claim 5, characterized in that The target area range of natural zero-carbon hydrogen, and / or helium, and / or multiple associated gas reservoirs is determined according to the geochemical comprehensive anomaly map, including: Determine each non-leakage area based on the geochemical comprehensive anomaly map; Determining the enrichment factor of each type of gas at each of the first sampling points; According to the enrichment coefficient of each gas at each of the first sampling points, each non-leakage area where a gas reservoir exists is screened out in each non-leakage area, and the non-leakage area where the gas reservoir exists is screened out as an initial target area; Determine the correlation value between various gases in each initial target area according to the concentration data of various gases at each first sampling point at the boundary of each initial target area; Determine the gas reservoir type of each initial target area based on the correlation value between various gases in each initial target area; Each initial target area is taken as the target area range of its corresponding gas reservoir type; Among them, the gas reservoir types include: natural zero-carbon hydrogen reservoirs, helium reservoirs, and various associated gas reservoirs.

7. A system for exploring natural zero-carbon hydrogen, helium and various associated gas reservoirs, characterized in that: The system comprises: A collection module, used for collecting gas samples at each preset first sampling point and each repeated sampling point by using a sampling device; A first determination module, configured to determine the concentration data of various gases at each first sampling point and the concentration data of various gases at each repeated sampling point based on the gas samples collected at each first sampling point and each repeated sampling point; A testing module, used to test the various gas concentration data of each first sampling point using the various gas concentration data of each repeated sample collection point, to obtain the various gas concentration data corresponding to each sample after the test of each first sampling point; A drawing module is used to draw a geochemical anomaly map of the sampling area based on the gas concentration data corresponding to each sample after inspection; The second determination module is used to determine the target area range of natural zero-carbon hydrogen, and / or helium, and / or multiple associated gas reservoirs according to the geochemical comprehensive anomaly map.

8. The system according to claim 7, characterized in that The sampling device comprises: a threaded sampler, a silicone tube, a sealing valve, a filter, an air pump and an aluminum foil peritoneal bag; The method of collecting gas samples at each preset first sampling point and each repeated sampling point using a sampling device comprises: Use a 1.2-meter-long, 2.6-cm-diameter steel chisel to drill a 1-meter-deep hole in the soil at each first sampling point and each repeated sampling point, insert the threaded sampler into the hole and tighten it to achieve a sealing degree, then connect the silicone tube in the threaded sampler to the sealing valve and filter, and use the connected vacuum pump to draw 200 ml of gas into the aluminum foil peritoneal bag until the aluminum foil peritoneal bag is full, tighten the air bag sealing valve, and complete the sampling.

9. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method according to any one of claims 1 to 6 is implemented.

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

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