A method, apparatus, medium and device for uranium-radium balance correction

By combining geophysical logging and geophysical mapping with uranium-radium balance coefficient zonal correction quantitative gamma logging, the problem of inaccurate calculation of uranium ore depth and grade was solved, and accurate assessment of uranium resource reserves was achieved.

CN120447084BActive Publication Date: 2025-10-212003 INST OF NUCLEAR IND
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Patent Information

Application Number
CN202510613011.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2025-10-21
Estimated Expiration
2045-05-13

AI Technical Summary

Technical Problem

Existing technologies make it difficult to accurately determine the depth, thickness, and grade of sandstone-type uranium ore sections, leading to inaccurate calculations of uranium resource reserves.

Method used

By acquiring geophysical logging and geophysical mapping data from industrial uranium ore boreholes, collecting uranium and radium samples, and using uranium fission transient neutron logging to determine the ratio of hyperthermal neutron to thermal neutron time spectrum, combined with uranium-radium balance coefficient zoning, the quantitative gamma logging curve is corrected to obtain the actual depth range, thickness, and grade of the uranium ore section.

Benefits of technology

It enables accurate acquisition of the depth range, thickness, and grade of uranium ore sections, improving the accuracy of resource reserve calculations.

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Abstract

The application discloses a uranium-radium balance correction method, device, medium and equipment, relates to the uranium detection field of sandstone type uranium mines, and comprises the following steps: obtaining an industrial uranium mine hole, performing geophysical well logging on the industrial uranium mine hole, determining a mineralization section through quantitative gamma interpretation, performing geological logging and geophysical logging on a core, collecting and analyzing uranium-radium samples in the mineralization section, performing uranium fission prompt neutron logging on the mineralization section, determining a uranium mine section depth range according to the ratio of epithermal neutrons to thermal neutrons in the time spectrum of the uranium prompt neutron logging, determining a single sample section uranium-radium balance coefficient according to the uranium-radium sample analysis result of the mineralization section, determining a single project uranium-radium balance coefficient according to the single sample section uranium-radium balance coefficient, determining a uranium-radium balance coefficient zoning map according to the single project uranium-radium balance coefficient, correcting the quantitative gamma logging curve in the uranium mine section depth range of the uranium prompt neutron logging by using the coefficients in different uranium-radium balance zones, and obtaining the actual uranium mine section depth range, thickness and grade.
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Description

Technical Field

[0001] The present invention relates to the technical field of uranium detection in sandstone-type uranium deposits, and in particular to a uranium-radium balance correction method, device, medium and equipment. Background Art

[0002] To achieve the "dual carbon" goals, my country has seen a significant increase in the number of nuclear power plant construction. To meet the urgent need for nuclear fuel, the demand for uranium resources is also increasing, making uranium geological exploration increasingly urgent. Sandstone uranium deposits account for over 30% of all identified uranium deposit types worldwide, with annual production exceeding 45%. Sandstone uranium deposits are also the primary type of uranium deposit in my country. With the development and application of CO2+O2 in-situ leaching technology, sandstone uranium deposits play a crucial role in increasing reserves and production.

[0003] Sandstone-type uranium deposits are concealed, blind deposits, with ore bodies typically buried at depths ranging from several hundred to several thousand meters. Current exploration methods primarily rely on drilling, where drill rigs drill holes into the ground, extracting rock and ore samples from various depths. Instruments then conduct in-hole observations, providing essential data for geological and mineral research. Uranium content is a crucial technical parameter in calculating resource reserves for sandstone-type uranium deposits, and its measurement accuracy directly impacts the accuracy and reliability of resource reserve calculations. Current methods for determining uranium content include uranium-radium sample analysis, quantitative gamma logging, and uranium prompt neutron logging. The standard requires interpreting uranium content using the uranium-radium balance coefficient calculated from sample analysis to modify quantitative gamma logging. Uranium-radium sample analysis involves sampling from relatively intact rock or ore, analyzing the uranium and radium contents using physical or chemical methods, and calculating the uranium-radium balance coefficient. This requires a high core sampling rate. Quantitative gamma logging detects gamma rays with energies exceeding 0.4 MeV, all of which are emitted by 214 Bi, allowing inverse calculation of the equilibrium uranium content. However, uranium is easily oxidized and migrated, resulting in uranium-radium imbalance. Uranium fission prompt neutron logging utilizes pulsed neutrons generated by a pulsed neutron source. After being moderated by the wellbore fluid and formation, they are converted into thermal neutrons. Thermal neutrons undergo fission reactions with uranium (235 U). The detection is based on the linear relationship between the ratio of the epithermal neutron to thermal neutron time spectrum and the uranium content, enabling quantitative analysis of uranium deposits. Although many factors influence this technology, which is still in its experimental stage, it is relatively accurate in determining the boundaries of uranium deposits.

[0004] Uranium-radium uneven sandstone-type uranium deposits have serious uranium bias in uranium ores and serious radium bias in non-uranium ores. Conventional quantitative gamma logging can no longer meet the needs of actual production, making it difficult to increase its resource reserves and thus difficult to accurately calculate the depth range, thickness and grade of the uranium ore section. Summary of the Invention

[0005] The present invention provides a uranium-radium balance correction method, device, medium and equipment to solve the above-mentioned problem existing in the prior art, namely, how to accurately obtain the depth range, thickness and grade of uranium ore sections in the prior art. The present invention provides a uranium-radium balance correction method, which includes:

[0006] Acquire industrial uranium ore holes, conduct geophysical logging on the industrial uranium ore holes, determine the mineralized sections through quantitative gamma interpretation, conduct geological and geophysical logging on the cores, collect uranium and radium samples in the mineralized sections, test the uranium and radium content in the uranium and radium samples, and determine the analytical results of the uranium and radium samples in the mineralized sections;

[0007] Conduct uranium fission prompt neutron logging on the mineralized section to determine the ratio of the epithermal neutron to thermal neutron time spectrum of the uranium prompt neutron logging. Based on the ratio of the epithermal neutron to thermal neutron time spectrum, determine the depth range of the uranium ore section of the uranium prompt neutron logging;

[0008] Based on the analysis results of uranium-radium samples in the mineralized section, the uranium-radium balance coefficient of the single sample section is determined. Based on the uranium-radium balance coefficient of the single sample section, the uranium-radium balance coefficient of the single project is determined. Based on the uranium-radium balance coefficient of the single project, the uranium-radium balance coefficient partition is determined.

[0009] According to the uranium-radium balance coefficient zoning, the uranium-radium balance coefficient in different zones is determined. The uranium-radium balance coefficient in different zones is used to correct the quantitative gamma logging curve within the depth range of the uranium ore section of uranium prompt neutron logging to obtain the actual depth range, thickness and grade of the uranium ore section.

[0010] Optionally, the detecting of the uranium and radium content in the uranium and radium sample specifically includes:

[0011] Chemical analysis method was used to detect the uranium and radium content in uranium and radium samples.

[0012] Optionally, the information of the mineralized section determined by quantitative γ interpretation specifically includes:

[0013] The five-point inverse fold integral layer interpretation method was selected, and the uranium content was determined using the following formula:

[0014]

[0015] Among them, q i is the equivalent uranium content of the i-th unit layer, I i is the γ irradiation rate at measuring point i, K u is the value of the sensitivity coefficient of uranium content, α is the characteristic parameter, which represents the percentage of the attenuation of the γ irradiation rate per unit absorption layer thickness, and h is the unit layer thickness.

[0016] Optionally, determining the uranium-radium balance coefficient of a single project based on the uranium-radium balance coefficient of a single sample section specifically includes:

[0017] The uranium-radium balance coefficient of a single sample segment is obtained using the following formula:

[0018]

[0019] Among them, c Rai is the analytical test value of radium in a single sample segment, c ui is the analytical test value of uranium in a single sample segment, K pi is the uranium-radium balance coefficient of a single sample segment;

[0020] The single-project uranium-radium balance coefficient is obtained using the following formula:

[0021]

[0022] in, is the single-project uranium-radium balance coefficient, It is the meter percentage value of the radium analysis of a single ore section after correction of the ore core sampling rate.

[0023] Optionally, the uranium-radium balance coefficient partitioning specifically includes:

[0024] Radium-biased zone, equilibrium zone and uranium-biased zone.

[0025] Optionally, the geophysical logging specifically includes:

[0026] Quantitative gamma logging and comprehensive logging.

[0027] The present invention provides a uranium-radium balance correction device, comprising:

[0028] The acquisition module is used to acquire industrial uranium ore holes, perform geophysical logging on the industrial uranium ore holes, determine the mineralized sections through quantitative gamma interpretation, perform geological and geophysical logging on the cores, collect uranium and radium samples in the mineralized sections, test the uranium and radium content in the uranium and radium samples, and determine the analysis results of the uranium and radium samples in the mineralized sections;

[0029] The uranium ore section depth range determination module is used to perform uranium fission prompt neutron logging on the mineralized section, determine the ratio of the epithermal neutron to thermal neutron time spectrum of the uranium prompt neutron logging, and determine the depth range of the uranium ore section of the uranium prompt neutron logging based on the ratio of the epithermal neutron to thermal neutron time spectrum;

[0030] The uranium-radium balance coefficient determination module is used to determine the uranium-radium balance coefficient of a single sample section based on the uranium-radium sample analysis results of the mineralized section, determine the uranium-radium balance coefficient of a single project based on the uranium-radium balance coefficient of the single sample section, and determine the uranium-radium balance coefficient partition based on the uranium-radium balance coefficient of the single project;

[0031] The correction module is used to determine the uranium-radium balance coefficient in different zones according to the uranium-radium balance coefficient, and use the uranium-radium balance coefficient in different zones to correct the quantitative gamma logging curve within the depth range of the uranium ore section of the uranium prompt neutron logging to obtain the actual depth range, thickness and grade of the uranium ore section.

[0032] The present invention provides a computer-readable storage medium, wherein the storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned uranium-radium balance correction method is implemented.

[0033] The present invention provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the uranium-radium balance correction method is implemented.

[0034] Compared with the prior art, the present invention has the following beneficial effects: the present invention provides a uranium-radium balance correction method, which preliminarily determines industrial uranium ore holes based on field geophysical logging, and simultaneously performs geological logging and γ+β geophysical logging on the uranium ore sections obtained through drilling to collect uranium-radium samples and conduct laboratory analysis, thereby further calculating the uranium-radium balance coefficient of the uranium ore; a plane contour map is drawn according to the uranium-radium balance coefficient of each borehole and divided into zones, including a radium-biased zone, a balance zone, and a uranium-biased zone, to obtain the uranium-radium balance coefficient; based on the ratio of the epithermal neutron to thermal neutron time spectrum of the uranium prompt neutron logging, the starting and ending depth range of the uranium ore section can be accurately obtained; then, by using the coefficients in different uranium-radium balance zones, the quantitative γ logging curve within the depth range of the uranium ore section obtained by the uranium prompt neutron logging is corrected, thereby accurately obtaining the thickness and grade within the depth range of the uranium ore section. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0036] Figure 1 A flow chart of a uranium-radium balance correction method provided in an embodiment of the present invention;

[0037] Figure 2 A diagram of sampling uranium and radium samples from a drill hole provided in an embodiment of the present invention;

[0038] Figure 3 A uranium-radium equilibrium plane partition diagram of a typical sandstone-type uranium deposit provided in an embodiment of the present invention;

[0039] Figure 4 This is a superposition diagram of borehole gamma logging, neutron logging, and sample analysis for a typical sandstone-type uranium deposit provided by an embodiment of the present invention;

[0040] Figure 5A schematic diagram of a computer device for a uranium-radium balance correction method provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0042] The following describes in detail the technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems using specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The following embodiments of the present invention are described in conjunction with the accompanying drawings.

[0043] This example is combined with a typical sandstone-type uranium deposit to further illustrate the present invention through the correction of the uranium-radium balance of the S1-1 borehole.

[0044] Figure 1 This is a flow chart of a uranium-radium balance correction method provided by an embodiment of the present invention. Figure 1 As shown, this embodiment shows a uranium-radium balance correction method, including:

[0045] S1: Acquire industrial uranium ore holes, conduct geophysical logging on the industrial uranium ore holes, determine the mineralized section through quantitative gamma interpretation, conduct geological and geophysical logging on the cores, collect uranium and radium samples in the mineralized section, test the uranium and radium element content in the uranium and radium samples, and determine the analysis results of the uranium and radium samples in the mineralized section.

[0046] Optional, geophysical logging, specifically including quantitative gamma logging and comprehensive logging.

[0047] For example, when conducting geophysical logging on industrial uranium mine holes, the grade, thickness and spatial position of the ore layer when uranium and radium are in equilibrium are first comprehensively and accurately determined through gamma logging; secondly, the data obtained from density, apparent resistivity, natural potential, acoustic wave and other logging provide a physical property basis for the division of strata and lithology; fourthly, the absorption coefficient of the drilling mud to gamma rays is calculated through well diameter measurement to provide correction parameters for the gamma logging interpretation.

[0048] For example, geophysical logging includes on-site gamma-beta logging of all drilled rock (ore) cores, performed simultaneously with geological logging. Measurements are made at a 0.1-0.2m interval in the radioactive anomaly section, extending 1-2m above and below the anomaly or mineralized section, respectively. Core measurements require the core to be removed from the core box, placed at least 1m away from the box, and marked. Gamma-beta and gamma logging are then performed simultaneously. Geological logging includes detailed observation and description of rock characteristics such as color, grain size, degree of cementation, detrital mineral composition, content, sorting, grinding, bedding, carbonates, organic matter content, and epigenetic alteration.

[0049] For example, a drilling uranium-radium sampling map can be compiled based on the S1-1 drilling core log and data, such as Figure 2 As shown, samples are collected and analyzed. The same is true for other boreholes. For example, chemical analysis can be used to detect the uranium U, radium Ra, and element content in the sample. U is detected using a laser fluorescence trace uranium analyzer, and Ra is detected using a fully automatic radium radon analyzer.

[0050] S2: Perform uranium fission prompt neutron logging on the mineralized section to determine the ratio of the epithermal neutron to thermal neutron time spectrum of the uranium prompt neutron logging. Based on the ratio of the epithermal neutron to thermal neutron time spectrum, determine the depth range of the uranium ore section of the uranium prompt neutron logging.

[0051] For example, the range of uranium mineralization section at uranium-radium equilibrium was preliminarily determined by quantitative gamma logging, as shown in Tables 1 and 2.

[0052] Table 1 Single-point interpretation results of five-point deconvolution γ logging

[0053]

[0054] Table 2 Quantitative γ logging interpretation results

[0055]

[0056] For example, the five-point inverse folding integral layer interpretation method is selected, and the computer automatically calculates and interprets the uranium content, and the uranium content is obtained using the following formula:

[0057]

[0058] Among them, q i is the equivalent uranium content of the i-th unit layer, I i is the γ irradiation rate at measuring point i, K u is the value of the sensitivity coefficient of uranium content, α is the characteristic parameter, which represents the percentage of the attenuation of the γ irradiation rate per unit absorption layer thickness, and h is the unit layer thickness.

[0059] S3: Based on the analysis results of uranium-radium samples in the mineralized section, determine the uranium-radium balance coefficient of the single sample section, determine the uranium-radium balance coefficient of the single project based on the uranium-radium balance coefficient of the single sample section, and determine the uranium-radium balance coefficient partition based on the uranium-radium balance coefficient of the single project.

[0060] For example, the uranium-radium balance coefficient of a single sample segment can be obtained by collating the analytical test data of uranium-radium samples within the study area using the following formula:

[0061]

[0062] Among them, c Rai is the analytical test value of radium in a single sample segment, c ui is the analytical test value of uranium in a single sample segment, K pi is the uranium-radium equilibrium coefficient of a single sample segment.

[0063] According to the uranium-radium balance coefficient of a single sample section, the uranium-radium balance coefficient of a single project is obtained using the following formula:

[0064]

[0065] in, is the single-project uranium-radium balance coefficient, It is the meter percentage value of the radium analysis of a single ore section after correction of the ore core sampling rate.

[0066] For example, a uranium-radium balance coefficient partition diagram is drawn based on the uranium-radium balance coefficient of a single project, such as Figure 3 As shown, there are radium-biased zone (Kp>1.1), equilibrium zone (1.1≥Kp≥0.9), and uranium-biased zone (Kp<0.9): and the following formula is used to calculate the uranium-radium balance coefficient in different zones:

[0067]

[0068] Among them, k p is the uranium-radium balance coefficient of the ore body, H i The length of a single sample.

[0069] The area where the S1-1 drilling hole is located is a uranium-biased area. p =0.62.

[0070] S4: Based on the uranium-radium balance coefficient zoning, the uranium-radium balance coefficient in different zones is determined. The uranium-radium balance coefficient in different zones is used to correct the quantitative gamma logging curve within the depth range of the uranium ore section of the uranium prompt neutron logging to obtain the actual depth range, thickness and grade of the uranium ore section.

[0071] Exemplarily, time window data processing is performed based on the cumulative measurement time of thermal neutrons and epithermal neutrons, the thermal neutron single-point measurement time, the thermal neutron single-point cumulative counting logging data, and various parameters at the depth of the measurement point to calculate the direct uranium content (pU).

[0072] According to the Net, Nec counting rate, and detection sensitivity correction results, the uranium content is obtained using the following formula:

[0073]

[0074] Where q u is the uranium content of the formation rock, 10-6; N E / T (t ≤200 t) is obtained by measuring the decay time spectra of epithermal neutrons and thermal neutrons, s -1 ; η is the fraction of thermal neutrons leaking into the epithermal neutron proportional counter, s -1 ; K is the scale factor, s -1 / 10 -6 .

[0075] According to q u The starting and ending depths of the uranium mining section were determined to be 946.30~953.40m, 957.60~960.10m, and 967.50~968.50m.

[0076] For example, the coefficients in different uranium-radium balance zones are used to correct the uranium prompt neutron logging in the borehole corresponding to 0.62, and the quantitative gamma logging data within the depth range are determined to determine the actual uranium ore section thickness, grade and uranium content per square meter.

[0077] Table 3 Results of quantitative γ interpretation with uranium-radium balance correction

[0078]

[0079] Comparing Table 2 and Table 3, it can be seen that the mining section 946.10~946.30m before correction is a non-mining section after correction, and the main mining section 946.30~953.40m has an increased uranium content per square meter of 58.91% before and after correction.

[0080] The above is a uranium-radium balance correction method provided in one or more embodiments of this specification. Based on the same idea, this specification also provides a corresponding uranium-radium balance correction device, including:

[0081] The acquisition module is used to acquire industrial uranium ore holes, perform geophysical logging on the industrial uranium ore holes, determine the mineralized sections through quantitative gamma interpretation, perform geological and geophysical logging on the cores, collect uranium and radium samples in the mineralized sections, test the uranium and radium content in the uranium and radium samples, and determine the analysis results of the uranium and radium samples in the mineralized sections;

[0082] The uranium ore section depth range determination module is used to perform uranium fission prompt neutron logging on the mineralized section, determine the ratio of the epithermal neutron to thermal neutron time spectrum of the uranium prompt neutron logging, and determine the depth range of the uranium ore section of the uranium prompt neutron logging based on the ratio of the epithermal neutron to thermal neutron time spectrum;

[0083] The uranium-radium balance coefficient determination module is used to determine the uranium-radium balance coefficient of a single sample section based on the uranium-radium sample analysis results of the mineralized section, determine the uranium-radium balance coefficient of a single project based on the uranium-radium balance coefficient of the single sample section, and determine the uranium-radium balance coefficient partition based on the uranium-radium balance coefficient of the single project;

[0084] The correction module is used to determine the uranium-radium balance coefficient in different zones according to the uranium-radium balance coefficient, and use the uranium-radium balance coefficient in different zones to correct the quantitative gamma logging curve within the depth range of the uranium ore section of the uranium prompt neutron logging to obtain the actual depth range, thickness and grade of the uranium ore section.

[0085] The specific definition of the uranium-radium balance correction device can be found in the definition of the uranium-radium balance correction method above and will not be repeated here. Each module in the aforementioned uranium-radium balance correction device can be implemented in whole or in part via software, hardware, or a combination thereof. Each of these modules can be embedded in or independent of a processor in a computer device in hardware form, or stored in a computer device memory in software form, allowing the processor to call and execute the corresponding operations of each module.

[0086] The present invention also provides a computer-readable storage medium, which stores a computer program. The computer program can be used to execute the uranium-radium balance correction method provided above.

[0087] The present invention also provides Figure 5 The structural diagram of the computer equipment shown in FIG. Figure 5 As shown, at the hardware level, the computer device includes a processor, an internal bus, a network interface, memory, and non-volatile storage, and may also include other hardware required for its operations. The processor reads the corresponding computer program from the non-volatile storage into the internal memory and then runs it to implement the uranium-radium balance correction method provided in the above embodiment.

[0088] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present invention.

Claims

1. A method for correcting uranium-radium balance, characterized in that: include: Acquire industrial uranium ore holes, conduct geophysical logging on the industrial uranium ore holes, determine the mineralized sections through quantitative gamma interpretation, conduct geological and geophysical logging on the cores, collect uranium and radium samples in the mineralized sections, test the uranium and radium content in the uranium and radium samples, and determine the analytical results of the uranium and radium samples in the mineralized sections; Conduct uranium fission prompt neutron logging on the mineralized section to determine the ratio of the epithermal neutron to thermal neutron time spectrum of the uranium prompt neutron logging. Based on the ratio of the epithermal neutron to thermal neutron time spectrum, determine the depth range of the uranium ore section of the uranium prompt neutron logging; Based on the analysis results of uranium-radium samples in the mineralized section, the uranium-radium balance coefficient of the single sample section is determined. Based on the uranium-radium balance coefficient of the single sample section, the uranium-radium balance coefficient of the single project is determined. Based on the uranium-radium balance coefficient of the single project, the uranium-radium balance coefficient partition is determined. According to the uranium-radium balance coefficient zoning, the uranium-radium balance coefficient in different zones is determined. The uranium-radium balance coefficient in different zones is used to correct the quantitative gamma logging curve within the depth range of the uranium ore section of uranium prompt neutron logging to obtain the actual depth range, thickness and grade of the uranium ore section.

2. The uranium-radium balance correction method according to claim 1, characterized in that: The detection of the uranium and radium element content in the uranium and radium sample specifically includes: Chemical analysis method was used to detect the uranium and radium content in uranium and radium samples.

3. The uranium-radium balance correction method according to claim 1, characterized in that: The information on the mineralized section determined by quantitative γ interpretation specifically includes: The five-point inverse fold integral layer interpretation method was selected, and the uranium content was determined using the following formula: Among them, q i is the equivalent uranium content of the i-th unit layer, I i is the γ irradiation rate at measuring point i, K u is the value of the sensitivity coefficient of uranium content, α is the characteristic parameter, which represents the percentage of the attenuation of the γ irradiation rate per unit absorption layer thickness, and h is the unit layer thickness.

4. The uranium-radium balance correction method according to claim 1, characterized in that: Determining the uranium-radium balance coefficient of a single project based on the uranium-radium balance coefficient of a single sample section specifically includes: The uranium-radium balance coefficient of a single sample segment is obtained using the following formula: Among them, c Rai is the analytical test value of radium in a single sample segment, c ui is the analytical test value of single sample uranium, K pi is the uranium-radium balance coefficient of a single sample segment; The single-project uranium-radium balance coefficient is obtained using the following formula: in, is the single-project uranium-radium balance coefficient, It is the meter percentage value of the radium analysis of a single ore section after correction of the ore core sampling rate.

5. The uranium-radium balance correction method according to claim 1, characterized in that: The uranium-radium balance coefficient partitioning specifically includes: Radium-biased zone, equilibrium zone and uranium-biased zone.

6. The uranium-radium balance correction method according to claim 1, characterized in that: The geophysical logging specifically includes: Quantitative gamma logging and comprehensive logging.

7. A uranium-radium balance correction device, characterized in that: include: The acquisition module is used to acquire industrial uranium ore holes, perform geophysical logging on the industrial uranium ore holes, determine the mineralized sections through quantitative gamma interpretation, perform geological and geophysical logging on the cores, collect uranium and radium samples in the mineralized sections, test the uranium and radium content in the uranium and radium samples, and determine the analysis results of the uranium and radium samples in the mineralized sections; The uranium ore section depth range determination module is used to perform uranium fission prompt neutron logging on the mineralized section, determine the ratio of the epithermal neutron to thermal neutron time spectrum of the uranium prompt neutron logging, and determine the depth range of the uranium ore section of the uranium prompt neutron logging based on the ratio of the epithermal neutron to thermal neutron time spectrum; The uranium-radium balance coefficient determination module is used to determine the uranium-radium balance coefficient of a single sample section based on the uranium-radium sample analysis results of the mineralized section, determine the uranium-radium balance coefficient of a single project based on the uranium-radium balance coefficient of the single sample section, and determine the uranium-radium balance coefficient partition based on the uranium-radium balance coefficient of the single project; The correction module is used to determine the uranium-radium balance coefficient in different zones according to the uranium-radium balance coefficient, and use the uranium-radium balance coefficient in different zones to correct the quantitative gamma logging curve within the depth range of the uranium ore section of the uranium prompt neutron logging to obtain the actual depth range, thickness and grade of the uranium ore section.

8. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and when the computer program is executed by a processor, the uranium-radium balance correction method according to any one of claims 1 to 6 is implemented.

9. A computer device, characterized in that: The invention comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein when the processor executes the program, the uranium-radium balance correction method according to any one of claims 1 to 6 is implemented.

Citation Information

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