CN114690272A - Drilling construction method for uranium mine exploration - Google Patents

Abstract

The embodiment of the invention provides a drilling construction method for uranium mine exploration, wherein the uranium mine exploration is carried out in a working area, and the drilling construction method comprises the following steps: analyzing the existing data related to the working area and determining a target layer for finding the mine; carrying out field route geological and radioactivity investigation according to the distribution characteristics of the target layer of the ore finding, and delineating an ore finding target area according to the investigation result; determining the geological conditions of ore deposits in the target area of the ore exploration; determining the type of investigation according to the geological conditions of the ore deposit in the target area of the ore exploration; determining the distance between the drill holes according to the type and the stage of the exploration; deploying a plurality of drill holes in the ore finding target area according to the drill hole intervals; wherein the drill holes comprise core drill holes and percussion drill holes, and the number of core drill holes is smaller than the number of percussion drill holes. The drilling construction method for the uranium mine exploration can improve the drilling construction efficiency of the uranium mine exploration and reduce the cost.

Description

Drilling Construction Method for Uranium Exploration

technical field

The invention belongs to the field of uranium ore exploration, in particular to a high-efficiency and low-cost drilling construction method.

Background technique

Drilling is a necessary work in the uranium exploration process. The drilling construction method directly determines the efficiency, cost and quality of the exploration evaluation. It is urgent to establish an efficient and low-cost drilling construction method.

SUMMARY OF THE INVENTION

In view of the above problems, the present application is made in order to provide a drilling construction method for uranium exploration that overcomes the above problems or at least partially solves the above problems.

According to an embodiment of the present application, a drilling construction method for uranium ore exploration is provided. The uranium ore exploration is carried out in a work area, including: analyzing existing data related to the work area, and determining a prospecting target layer; Distribution characteristics, carry out field route geological and radiological surveys, and delineate the prospecting target area according to the results of the survey; determine the geological conditions of the ore deposits in the prospecting target area; determine the exploration type according to the geological conditions of the ore deposits in the prospecting target area; Determine the drill hole spacing with the exploration stage; according to the drill hole spacing, deploy multiple drill holes in the prospecting target area; wherein the drill holes include core drill holes and percussion drill holes, and the number of core drill holes is less than The number of holes drilled by the hammer drill.

According to the embodiments of the present application, a drilling construction method for uranium ore exploration is provided, which can improve the drilling construction efficiency and reduce costs of uranium ore exploration.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

Fig. 1 is the schematic flow chart of the drilling construction method of the uranium ore exploration of the embodiment of the present invention;

2 is a schematic diagram of the relationship between a work area and a prospecting target area according to an embodiment of the present invention;

3 is a schematic diagram of the relationship between a prospecting target layer and an outcrop according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a drilling deployment grid according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Next, the present invention will be further described in detail by taking the drilling construction method for the exploration of phosphorite-type uranium deposits in northern Saudi Arabia as an example. It can be understood that the method provided in the embodiment of the present invention can not only be applied to phosphorite-type uranium ore, but also can be applied to other ores with similar metallogenic conditions. Similarly, the method provided by the embodiments of the present invention can be applied not only to northern Saudi Arabia, but also to other regions of Saudi Arabia, Jordan, Morocco, the United States, Canada, Australia, Central Asia, my country, and other regions, which are not limited in the present invention.

According to an embodiment of the present invention, a drilling construction method for uranium ore exploration is provided, with reference to FIG. 1 , including:

Step S101, the system collects and analyzes the existing data to determine the prospecting target layer.

2 and 3, based on the data of geology, geophysical prospecting, geochemical prospecting, remote sensing, aerial release, aeromagnetic, drilling and mineral resources in the work area 21, determine the prospecting target layer 30 and prospecting targets in the work area 21 Layer 30 distributes features. It can be understood that although FIG. 2 shows that the work area 21 is a rectangular area, in fact, the work area 21 in the present invention may be of any shape, which is not limited in the present invention.

Systematic collection of geology, geophysical prospecting, geochemical prospecting, remote sensing, aerial radiography, aeromagnetics, drilling, phosphorite reports and information on existing uranium mineralization and anomalous points in the Sagnat area of northern Saudi Arabia, especially on large scales Geological data and predecessors' survey evaluation and exploration report on phosphate and uranium deposits. Comprehensive analysis of regional geological background and working area 21 geological background, sedimentary-tectonic evolution and its relationship with uranium-phosphorus enrichment. The Senyat phosphorus block rock section 30 is determined as the prospecting target layer, and the distribution characteristics of the Senyat phosphorus block rock section are identified.

Existing profiles may include profiles related to workspace 21 . It can be used for geological, remote sensing, geochemical exploration, aerial release, aeromagnetic, drilling, phosphorite report, existing uranium mineralization, abnormal point information and other data in work area 21, especially large-scale geological data and previous research Investigation and Exploration Evaluation Report of Phosphate and Uranium Ores. Through a comprehensive analysis of the above data related to the work area 21, the regional geological background and the work area 21 geological background, sedimentary-tectonic evolution and its relationship with uranium-phosphorus enrichment were determined.

Based on the analysis results of the existing data, a preliminary understanding of the distribution characteristics, geological and radiological characteristics of the 21 phosphorite rock in the working area is carried out. The Senyat phosphorus block rock section is determined as the prospecting target layer 30. The surface of the Senyat phosphorus block rock section is exposed along the Senyat cliff and extends northward. The occurrence is almost horizontal, and the dip angle is about 0.5°～ 3°.

Step S102, according to the distribution characteristics of the prospecting target layer, carry out a field route geological and radiological survey, and delineate the prospecting target area according to the survey results.

Referring to Fig. 3, A is the exposed side of the stratum, and B is the side of the stratum buried underground. The prospecting target layer 30 has outcrops 31. The outcrop 31 refers to the part of the prospecting target layer 30 that is exposed on the surface. part. The outcrop 31 can be a natural outcrop formed naturally, or an artificial outcrop exposed by various engineering.

According to the strata, lithological outcropping characteristics and distribution characteristics of prospecting target layers in the working area, the field survey route is planned. The strata in the Senyat area are almost horizontal and extend northward. The prospecting target layer of the Senyat phosphorite rock section is exposed to the Senyat cliff along the east-west direction. According to the above characteristics, the field measurement route 22 can be planned according to the route interval of 1-2 km, and the geological and radiological surveys of the outcrop 31 and the upper and lower surrounding rocks can be carried out along the direction perpendicular to the strike of the stratum.

According to the planned field measurement route 22 above, carry out geological and radiological surveys at different lithological changes, and obtain the results of the geological and radiological surveys. In this embodiment, the scale range of the geological and radiological investigation is 1:10000~1:5000, of course, it can also be a scale with other suitable values, which is not limited in the present invention. In addition, the 1:10000~1:5000 gamma energy spectrum measurement, soil radon gas measurement, and audio magnetotelluric measurement were carried out on the regional section passing through the stratum, so as to identify the deep metallogenic environment. In this embodiment, in addition to analyzing the results of geological measurement and radioactivity survey of the outcrop 31 of the prospecting target layer 30, in addition to carrying out 1:10000~1:5000 gamma spectroscopy along the north-south regional section, Soil radon gas measurement and audio magnetotelluric measurement are used to find out the deep metallogenic environment. Combine the geological data, drilling data, and mineral data collected in step S101 to determine the distribution characteristics of the prospecting target layer 30, and analyze the lithofacies paleogeography , Ore-controlling factors, for example, according to the results of the geological and radiological investigation at the outcrop 31, the shape, occurrence, scale, thickness and grade of the uranium mineralization at the outcrop 31 of the prospecting target layer 30 can be identified. After obtaining the geological and radiological survey results of multiple outcrops, combined with the geological data, borehole data, and mineral data collected in step S101, as well as the above-mentioned gamma energy spectrum measurement, soil radon gas measurement, and audio magnetotelluric measurement results, you can check the results. The distribution of uranium mineralization in the ore prospecting target layer 30 can be roughly determined by analyzing the extension stability, grade continuity, etc., combined with the analysis of lithofacies paleogeography and ore-controlling factors to determine the distribution of the ore prospecting target layer 30.

In this embodiment, according to the results of geological and radiological investigations, combined with the study of metallogenic laws, the middle section of the southern part of the Sagnat area is delineated as the prospecting target area 23 . It can be understood that although the prospecting target area 23 in FIG. 2 is a rectangular area, in fact, the prospecting target area 23 in the present invention can be of any shape, which is not limited in the present invention.

In step S103, a representative profile is selected in the prospecting target area for measurement, and the geological conditions of the ore deposit are obtained.

The representative section is the section in which the prospecting target layer 30 in the prospecting target area 23 has a complete structure, clear top and bottom plates, and is completely exposed to the surface. The structural integrity here means that the contact surface between the prospecting target layer 30 and the upper and lower surrounding rocks is relatively clear and complete, so the data at the profile has a high reference value.

Select representative sections to carry out geological and radiological surveys, and conduct sampling work to observe and record in detail the lithology, color, structure, structure, occurrence, and mineral composition of the Senyat phosphorus block rock section and its upper and lower surrounding rocks in each representative section and radioactive content, count the different lithological thickness, P ₂ O ₅ content, and uranium content of the Senyat phosphorite rock section in each representative section, analyze the relationship between different lithology and uranium mineralization, and analyze the relationship between different lithology and uranium mineralization. The horizontal and vertical profiles are compared to determine the geological conditions of the ore deposits in the prospecting target area 23 in the Senyat area.

In this embodiment, the scale used for carrying out geological and radiological surveys is larger than the scale used for carrying out geological and radiological surveys. In this embodiment, the scale range of the actual measurement of geology and radioactivity can be 1:500~1:100, of course, it can also be a scale with other suitable values, which is not limited in the present invention.

The geological conditions of the ore deposit in the prospecting target area 23 include: length, width, shape of the ore body, thickness variation coefficient, grade variation coefficient, etc. of the mineralized body. Through the geological conditions of the ore deposits in the prospecting target area, the distribution law of the prospecting target layers is revealed, combined with the analysis of lithofacies paleogeography and ore-controlling factors, the metallogenic mechanism of the Senyat area is preliminarily studied.

In step S104, the exploration type is determined according to the geological conditions of the ore deposit.

The division of exploration types is mainly determined by geological factors such as the scale of phosphorite-type uranium mineralization (the strike length and dip width of the ore body), the morphological complexity, the thickness stability and the grade variation. According to the geological conditions of the deposit, the exploration types are divided into three types of exploration, namely the first exploration type, the second exploration type and the third exploration type.

If the geological conditions of the ore deposit in the prospecting target area meet the following conditions, it is determined as the first exploration type: the length of the uranium mineralization is ≥ 500 m, the width is ≥ 250 m, and the shape of the ore body is layered, layered, large Vein-shaped, the coefficient of variation of thickness is less than 50%, and the coefficient of variation of grade is less than 60%.

If the geological conditions of the ore deposit in the prospecting target area meet the following conditions, it is determined as the second exploration type: the uranium mineralization is 200 m to 500 m in length, 100 m to 250 m in width, and the ore body shape is layered, Layered, large lenticular, cylindrical, the main ore body is basically continuous, the main ore body is relatively stable in appearance, 50%≤thickness variation coefficient <180%, 60%≤grade variation coefficient <120%.

If the geological conditions of the ore deposit in the prospecting target area meet the following conditions, it is determined as the third exploration type: the length of the uranium mineralization is less than 200 m, the width is less than 100 m, and the shape of the ore body is irregular vein-like and network-like. , Lenticular, cylindrical, barrel, capsule, thickness variation coefficient ≥ 180%, grade variation coefficient ≥ 120%.

According to the survey results of the geological conditions of the deposit, combined with the analysis of lithofacies and paleogeography and the analysis of previous drilling data, it is found that the strike length of the phosphorus block type uranium mineralization in the delineated prospecting target area 23 is > 8 km, and the extension width of the dip > 6 km, the shape of the ore body is layered and layered, the thickness variation is stable (the thickness variation coefficient is less than 50%), and the uranium mineralization is relatively uniform (the grade variation coefficient is less than 60%), so it is determined as the first exploration type.

If the geological conditions of the deposit cannot fully meet all the conditions of a certain exploration type, it will be identified as the next exploration type. For example, when the geological conditions of the ore deposit cannot fully meet the first exploration type, it shall be identified as the second exploration type; when the ore deposit geological conditions cannot fully meet the second exploration type, it shall be identified as the third exploration type.

Step S105, determining the borehole spacing according to the survey type and survey stage.

The exploration stage includes the census stage, the detailed investigation stage and the exploration stage, etc. Different exploration stages have different requirements for the spacing of boreholes, and they are connected and related to each other. In this example, the census phase is carried out, and the purpose is to submit the inferred resources and determine the spacing of the boreholes.

Drill hole spacing depends on the type of exploration and the stage of exploration. When determining the drill hole spacing based on the exploration type and exploration stage, for the same exploration stage, the drill hole spacing corresponding to the first exploration type, the second exploration type and the third exploration type decreases in turn; for the same exploration type, the census stage , the drilling spacing corresponding to the detailed investigation stage and the exploration stage decreases successively.

In step S106, according to the drilling distance, a plurality of core drilling holes and percussion drilling holes are deployed.

With reference to FIG. 4 , the drilling spacing is determined based on the exploration type and exploration stage, and a plurality of drilling holes are deployed in the prospecting target area. The drilling holes include core drilling holes 41 and percussion drilling holes 42 , and core drilling holes 41 The number is less than the number of percussion drill holes 42 .

In this implementation, the core drill (DC drill) is used for drilling construction in the core drill hole 41, and the percussion drill is used for drilling construction in the percussion drill hole 42, and the number of the percussion drill holes 42 is much larger than that of the rock core drill hole 42. The number of core drill holes 42 . The percussion drill can be an air reverse circulation percussion drill (RC drill), or other types of percussion drills, such as a liquid circulation percussion drill, etc.

Referring to FIG. 4 , in this embodiment, since it is the first survey type and is in the general survey stage, the drilling distance can be designed to be 400m. Based on the drill hole spacing, the drill hole deployment grid is determined.

In the drilling deployment grid shown in Figure 4, there are multiple cells. The side length of each cell corresponds to the spacing of the drill holes, and this correspondence can be a scale of a predetermined value. The borehole deployment grid has multiple intersections formed by horizontal and vertical lines, each of which corresponds to the actual location of the borehole deployment.

The grid is deployed according to the boreholes, and a plurality of boreholes are deployed in a grid pattern. It should be noted that in the present invention, the grid is deployed according to the drilling holes, and the deployment of a plurality of drilling holes distributed in a grid shape means that the actual position of each drilling hole deployment corresponds to the intersection point in the reference drilling hole deployment grid location for deployment. In actual construction, due to the influence of construction conditions, there may be situations in which the drilling holes cannot be deployed strictly according to the positions corresponding to the intersections in the drilling deployment grid. drilling. So the actual deployed multiple boreholes may not form exactly the same grid as the borehole deployment grid, but even then each borehole is deployed with reference to the borehole deployment grid.

In the prospecting target area, according to the drilling deployment grid shown in Fig. 2, a plurality of drilling holes distributed in a grid pattern are deployed. The core drilling holes 41 distributed in a grid pattern are deployed with a preset multiple of the drilling hole spacing as an interval. The preset multiple is a positive integer greater than or equal to 2, and the specific value of the preset multiple is determined by the thickness variation coefficient and grade variation coefficient in the prospecting target area 23. Under certain conditions, the preset multiple can be appropriately increased. In this embodiment, the drilling spacing is designed to be 400m, the preset multiple can be twice, and the double drilling spacing is 800m. Core drill hole 41 . According to the position of the core drill hole 41 in the drill hole deployment grid, the percussion drill hole 42 is deployed, that is, the intersection of the non-deploy core drill hole 41 in the drill hole deployment grid corresponds to the actual position, and is determined as The location of the drill hole 42 where the hammer drill is deployed.

When the exploration stage is the detailed investigation stage, the drill hole spacing can be doubled compared to the drill hole spacing of the same exploration type in the census stage, that is, reduced to half of the drill hole spacing of the same exploration type in the census stage; when the exploration stage is the exploration stage, the drill hole spacing can be doubled. Spacing comparison The drilling spacing of the same exploration type in the detailed investigation stage can be doubled, that is, reduced to half of the drilling spacing of the same exploration type in the detailed investigation stage.

In addition, in the specific construction, the analogy method can be used for those with similar metallogenic conditions, and the area with less exploration projects can compare the spacing of different boreholes, and use statistical methods to determine the optimal engineering spacing.

After the drilling spacing is determined, the number of core drilling holes 41 and percussion drilling holes 42 can be determined according to the size of the prospecting target area 23 . The following description will be given by taking the shape of the prospecting target area 23 as a rectangle.

The length of the prospecting target area 23 is L km, the width of the prospecting target area 23 is W km, the borehole spacing is X km, and the preset multiple is N. Deploy the grid according to the drill hole spacing, then deploy the core drill holes 41 distributed in a grid pattern with the spacing of NX km, and deploy the percussion drill according to the positions of the core drill holes 41 in the drill hole deployment grid where the core drill holes are not deployed. Drill holes 42.

The total number of drilled holes T deployed can be expressed as:

The number D of core drilling holes 41 can be expressed as:

The number R of percussion drill holes 42 can be expressed as:

During calculation, when L and W are not integer multiples of X or NX, after dividing L or W by X or NX, the obtained quotient is rounded down.

When the preset multiple is 2, and L and W are sufficiently large, the core drilling holes 41 account for about 25%, the impact drilling holes 42 account for about 75%, and the number D of core drilling holes 41 is equal to The ratio of the number R of the percussion drill holes 42 is 1:3. For example, the length of the Senyat prospecting target area is 8 km, the width is 6 km, and the drill hole spacing is 400 m. Hole deployment grid, core drilling holes 41 are deployed according to the drilling spacing of 800 m, and percussion drilling holes 42 are deployed at other positions.

The total number of drilled holes T=(8/0.4+1)×(6/0.4+1)=21×16=336;

The number of core drilling holes 41 D=(8/0.8+1)×(6/0.8+1)=11×8=88;

The number of percussion drill holes 42 is R=336-88=248;

Core drills account for 88/336=26%, and impact drills account for (336-88)/336=74%.

When the preset multiple is 3, the proportion of core drilling holes 41 is lower. Also taking the Senyat prospecting target area as an example,

The total number of drilled holes T=(8/0.4+1)×(6/0.4+1)=21×16=336;

The number of core drilling holes 41 D=(8/1.2+1)×(6/1.2+1)=7×6=42;

The number of percussion drill holes 42 is R=336-42=294;

Core drills account for 42/336=12.5%, and impact drills account for (336-42)/336=87.5%.

The drilling construction method for uranium ore exploration provided by the embodiment of the present invention is a drilling combination construction method in which percussion drilling is the main method and core drilling area control is supplemented. Taking the northern area of Saudi Arabia as an example, the unit price of core drilling is 100 USD/m , the average drilling rate is 20-40 meters per day, the unit price of air reverse circulation drilling is 50 US dollars / meter, and the average drilling rate is 100-200 meters per day, which greatly saves the cost, improves the efficiency and quality, and is the best choice for phosphorite-type uranium The exploration evaluation and resource estimation of ore deposits provide reliable guarantee.

In the drilling construction method provided by the embodiment of the present invention, core drilling holes distributed in a grid pattern are deployed with a preset multiple of the drilling spacing as the spacing, and percussion drilling holes are deployed at other positions where the core drilling holes are not deployed. . First, such a drilling deployment method can make full use of percussion drills to give full play to the advantages of high efficiency, low cost, easy construction, and high quality in carbonate rocks or complex lithology, reducing the proportion of core drilling, and at the same time. The samples can meet the requirements of exploration and resource estimation; secondly, evenly distributed core drills can achieve macroscopic grasp of strata, structures, magmatic rocks, alteration characteristics and uranium mineralization characteristics, which is convenient for geologists to observe, study, and Construction, reasonable drilling adjustment and deployment, the maximum effect of the use of workload. Third, the core drilled core can accurately identify the distribution range, occurrence, scale, and continuity of the prospecting target layer, record the color, structure, and structure of the ore in detail, study the composition and quality of the ore material indoors, and carry out horizontal Compared with the vertical stratigraphic structure, the lithology and lithofacies, ore-controlling factors and metallogenic mechanism are analyzed.

The above descriptions are only the embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (18)

1. a drilling construction method for uranium ore exploration, described uranium ore exploration is carried out in a work area, and the method comprises: Analyzing the available data related to the said work area to determine the prospecting target layer; According to the distribution characteristics of the prospecting target layer, carry out a field route geological and radiological survey, and delineate the prospecting target area according to the results of the survey; determining the geological conditions of the ore deposit in the prospecting target area; Determine the exploration type according to the geological conditions of the ore deposit in the prospecting target area; determining borehole spacing according to said exploration type and exploration stage; According to the drill hole spacing, deploy a plurality of drill holes in the prospecting target area; wherein, The drill holes include core drill holes and hammer drill holes, and the number of the core drill holes is smaller than the number of the hammer drill holes. 2. The method of claim 1, wherein, according to the drill hole spacing, deploying a plurality of drill holes in the prospecting target comprises: According to the drill hole spacing, determine the drill hole deployment grid; According to the drill hole deployment grid, a plurality of drill holes distributed in a grid pattern are deployed. 3. The method of claim 2, wherein, according to the drilling hole deployment grid, deploying a plurality of drilling holes distributed in a grid pattern comprises: Deploying the grids according to the drilling holes, using a preset multiple of the drilling hole spacing as an interval, deploying the core drilling holes distributed in a grid shape; deploying the percussion drill hole according to a location in the drill hole deployment grid where the core drill hole is not deployed; The preset multiple is a positive integer greater than or equal to 2. 4. The method of claim 3, wherein, according to the drilling hole deployment grid, deploying a plurality of drilling holes distributed in a grid pattern further comprises: According to the drill hole spacing and the size of the prospecting target area, the total number of deployed drill holes, the number of core drill holes, and the number of percussion drill holes are determined. 5. The method of claim 4, wherein the total number of drill holes deployed, the number of core drill holes, and the impact are determined according to the drill hole spacing and the size of the prospecting target area The number of drilled holes includes: When the prospecting target area is rectangular: Total number of drill holes deployed

; The number of core drill holes

; The number of holes drilled by the hammer drill

; Wherein, N is the preset multiple, L is the length of the prospecting target area, W is the width of the prospecting target area, and X is the drill hole spacing. 6. The method according to claim 1, wherein, according to the distribution characteristics of the prospecting target layer, carry out a field route geological and radiological survey, and according to the result of the survey, delineating the prospecting target area comprises: According to the strata, lithological exposure characteristics and distribution characteristics of prospecting target layers in the working area, plan the field survey route; Carry out geological and radiological surveys of outcrops at lithological changes according to the field survey route; According to the results of the geological and radiological investigations, combined with the study of the metallogenic law, the prospecting target area is delineated. 7. The method according to claim 6, wherein determining the geological conditions of the ore deposit in the prospecting target area comprises: Select a representative profile in the prospecting target area, carry out geological and radioactive measurements on the representative profile, and determine the geological conditions of the ore deposit in the prospecting target area. 8 . The method according to claim 7 , wherein the representative section is a section in which the top and bottom plates of the prospecting target layer in the prospecting target area are clear, structurally complete and completely exposed to the surface. 9 . 9. The method according to claim 7, wherein a representative section is selected in the prospecting target area, and geological and radioactive measurements are carried out on the representative section to determine the geological conditions of the ore deposit in the prospecting target area. include: According to the geological and radiological measurements and sample analysis test results carried out on the representative sections, the lithology, color, structure, structure, occurrence, mineral composition and radioactive content of each representative section are ascertained; Count the lithological thickness and uranium content values of each said representative section to determine the relationship between different lithologies and uranium mineralization; The statistical results of a plurality of the representative profiles are compared horizontally and vertically to determine the geological conditions of the ore deposits in the prospecting target area. 10. The method of claim 1, wherein the existing data includes geological, geophysical, geochemical, remote sensing, borehole and mineral information related to the work area. 11. The method according to any one of claims 1-10, wherein the geological conditions of the ore deposits in the prospecting target area include: The length, width, ore body shape, thickness variation coefficient and grade variation coefficient of the uranium mineralized body in the prospecting target area. 12. The method of claim 11, wherein determining an exploration type according to the geological conditions of the deposit comprises: If the geological conditions of the ore deposit in the prospecting target area meet the following conditions, it is determined as the first exploration type: the length of the uranium mineralization is ≥ 500 m, the width is ≥ 250 m, and the shape of the ore body is layered, layered, large Vein-shaped, the coefficient of variation of thickness is less than 50%, and the coefficient of variation of grade is less than 60%. 13. If the geological conditions of the ore deposit in the prospecting target area meet the following conditions, it is determined as the second exploration type: the uranium mineralization is 200 m to 500 m in length, 100 m to 250 m in width, and the ore body is in a layer-like shape. The main ore body is basically continuous, and the main ore body is relatively stable in appearance, 50%≤thickness variation coefficient <180%, 60%≤grade variation coefficient <120%. 14. If the geological conditions of the ore deposit in the prospecting target area meet the following conditions, it is determined as the third exploration type: the length of the uranium mineralization is less than 200 m, the width is less than 100 m, and the shape of the ore body is irregular vein-like, networked Vein, lens, column, barrel, capsule, thickness variation coefficient ≥ 180%, grade variation coefficient ≥ 120%. 15. The method of claim 12, wherein the exploration phase includes a census phase, a detailed investigation phase, and an exploration phase. 16. The method according to claim 13, wherein when determining the borehole spacing based on the exploration type and the exploration stage, for the same exploration stage, the corresponding The drill spacing decreases sequentially. 17. The method according to claim 14, wherein, when the borehole spacing is determined based on the exploration type and the exploration stage, for the same exploration type, the borehole spacing corresponding to the census investigation stage, the detailed investigation stage and the exploration stage is successively decreased. Small. 18. The method of claim 1, wherein the hammer drill hole is an air reverse circulation hammer drill hole.

Images