LU503855B1 - Deep exploration method for lithium ore in salt lake - Google Patents
Deep exploration method for lithium ore in salt lake Download PDFInfo
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- LU503855B1 LU503855B1 LU503855A LU503855A LU503855B1 LU 503855 B1 LU503855 B1 LU 503855B1 LU 503855 A LU503855 A LU 503855A LU 503855 A LU503855 A LU 503855A LU 503855 B1 LU503855 B1 LU 503855B1
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- data
- inversion
- salt lake
- lithium
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 239000012267 brine Substances 0.000 claims abstract description 21
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 21
- 238000004088 simulation Methods 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 26
- 238000012549 training Methods 0.000 claims description 15
- 238000005457 optimization Methods 0.000 claims description 12
- 238000005553 drilling Methods 0.000 claims description 9
- 238000012795 verification Methods 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000005065 mining Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 3
- 239000002344 surface layer Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 abstract description 2
- 238000011161 development Methods 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- LPUQAYUQRXPFSQ-DFWYDOINSA-M monosodium L-glutamate Chemical compound [Na+].[O-]C(=O)[C@@H](N)CCC(O)=O LPUQAYUQRXPFSQ-DFWYDOINSA-M 0.000 description 1
- 235000013923 monosodium glutamate Nutrition 0.000 description 1
- 239000004223 monosodium glutamate Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/003—Seismic data acquisition in general, e.g. survey design
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/64—Geostructures, e.g. in 3D data cubes
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a deep exploration method for lithium ore in salt lake, comprising: S1: establishing an inversion model for geological exploration; S2: establishing a seismic profile, acquiring profile data; S3: acquiring characteristic data of overall distribution of strata based on wide-area electromagnetic method detection; S4: importing data for inversion simulation to acquire stratum model and inversion data; and S5: determining the distribution of lithium ore and brine layers in salt lakes in combination with inversion data to complete exploration. According to the invention, the geological exploration inversion model is established, the established seismic profile data and the data obtained by wide-area electromagnetic survey are combined to explore the lithium mine resources in the salt lake, so that the detection depth is large, the response to stratum distribution, structure and brine area is sensitive, the efficient and fine positioning exploration of deep resources in the salt lake is truly realized.
Description
DESCRIPTION LU503855
DEEP EXPLORATION METHOD FOR LITHIUM ORE IN SALT LAKE
The invention relates to the technical field of resource exploration, in particular to a deep exploration method for lithium ore in salt lake.
Lithium is very active in chemical properties, widely used in various fields including aerospace, and has the reputation of "industrial monosodium glutamate" and "white oil".
In recent years, driven by high-tech industries, the lithium industry market has developed rapidly, and its strategic position has gradually become prominent.
Lithium deposits are mainly divided into granite pegmatite-type lithium deposits, salt lake (brine)-type lithium deposits and sedimentary lithium deposits. Among them, Salt
Lake brine-type lithium deposits are the main source of lithium resources, accounting for about two-thirds of the world's lithium deposits, and they are also the leading direction of industrial exploitation of lithium ore at present. Especially in recent years, with the continuous progress of technology for extracting lithium from brine, its output and utilization rate have also greatly increased.
At present, there are remote sensing inversion detection, aerial magnetic survey, seismic method detection, transient electromagnetic valve, controlled source audio-frequency magnetotelluric method and audio-frequency magnetotelluric method for lithium ore exploration, but these methods all have a series of defects. Remote sensing inversion detection and airborne magnetic survey can only measure the distribution of lithium resources in shallow layer and surface. Although seismic method has the characteristics of deep depth and high resolution, it can't identify the distribution of brine in formation. Transient electromagnetic valve, controlled source audio magnetotelluric method and audio magnetotelluric method are affected by wire framgJ503855 size, current intensity and shielding of shallow low-resistivity layer, and can only locate the distribution of brine in shallow layer, but can't detect the distribution of lithium ore in deep layer, with low efficiency and poor vertical resolution. Therefore, the invention provides a deep exploration method of salt lake lithium ore to solve the problems existing in the prior art.
In view of the above problems, the purpose of the present invention is to propose a deep exploration method for lithium ore in salt lake. By establishing an inversion model of geological exploration and combining the established seismic profile data with the data obtained from wide-area electromagnetic survey, the deep exploration of lithium ore resources in salt lake has a large depth and is sensitive to stratum distribution, structure and brine area, thus truly realizing efficient and fine positioning exploration of salt lake deep resources.
In order to achieve the purpose of the invention, the invention is realized by the following technical scheme: a deep exploration method for lithium ore in salt lake comprises the following steps:
S1: establishing a geological exploration inversion model, acquiring the exploration data of the developed salt lake area based on Internet technology and wide-area electromagnetic method, establishing a three-dimensional digital model by combining with Surpac software, and performing training and optimization to obtain the geological exploration inversion model;
S2: establishing a seismic profile, obtaining historical geological tectonic movement data of the salt lake area to be explored by internet technology, carrying out field drilling to obtain drilling data, and combining the geological tectonic movement data and drilling data to construct a seismic profile to obtain profile data;
S3: electromagnetic survey: using the wide-area electromagnetic method to carry out on-the-spot detection in the salt lake area, and carrying out two-dimensional geological inversion according to the detection data to obtain the interpreted stratubt/503855 overall distribution characteristic data;
S4: inversion of the stratum model, introducing the profile data constructed in S2 and the stratum overall distribution characteristic data obtained in S3 as inputs into the geological exploration inversion model for inversion simulation, obtaining the stratum model and outputting inversion data;
S5: analysing the results, analysing and determining the distribution of the deep lithium ore and the brine containing lithium resources in the salt lake according to the stratum model obtained by inversion combined with the inversion data, and completing the exploration of the generated lithium ore.
Further, the establishment method in S1 is:
S101: data acquisition: acquiring a large number of geological structure movement data and borehole data of the developed salt lake area based on the Internet, and then conducting field wide-area electromagnetic method detection to obtain detection data, and combining the obtained data into exploration data;
S102: data processing: sorting out the obtained exploration data and dividing into a reference data set, a training data set and a verification optimization data set;
S103: establishing a model: establishing a three-dimensional digital model by combining the reference data set with Surpac software, then training the established three-dimensional digital model by using the training data set, and finally verifying and optimizing the trained model by using the verification and optimization data set to obtain the geological exploration inversion model.
Further, in S2, when the exploration data are divided, all the data in a salt lake area are divided into groups, and the division ratio of the reference data set, the training data set and the verification and optimization data set is 2:6:2.
Further, in S2, when constructing seismic profile, the strata interface and unconformity section are used as the basis to analyse and divide the layers, and the boundaries of the layers are identified, and then the seismic profile is constructed by combining the field borehole layer distribution and data to obtain the deep profile data of salt lake.
Further, in S3, the exact number of layers of underground brine layer is determined/503855 at the same time as the field detection data is obtained by wide-area electromagnetic method, and then the remote sensing image data is obtained after the wide-area electromagnetic method detection, and the lithium concentration in shallow and surface layers of salt lake is quickly obtained by inversion with LightGBM algorithm, and finally the overall distribution characteristic data of strata is obtained by two-dimensional geological inversion.
Further, the stratum model obtained by the inversion simulation in S4 includes the distribution of lithium deposits, lithium-containing brine layers, shallow and surface lithium resources and various intermediate strata, and the output inversion data are only the distribution of lithium deposits, lithium-containing brine layers and surface lithium resources.
Further, the distribution of various intermediate strata is used to analyse and determine the development and mining method of the salt lake in step 5, and the impact of resource exploitation on the environment is comprehensively considered when determining the mining method according to the inversion data and the distribution data of various intermediate strata.
The invention has the following beneficial effects.
According to the invention, the geological exploration inversion model is established, and the established seismic profile data and the data obtained by wide-area electromagnetic survey are combined to explore the lithium ore resources in the salt lake, so that the detection depth is large, the response to stratum distribution, structure and brine area is sensitive, and the efficient and fine positioning exploration of deep resources in the salt lake is truly realized.
BRIEF DESCRIPTION OF THE FIGURES LU503855
Fig. 1 is a flow chart of the survey method of the present invention.
Fig. 2 is a flowchart for establishing an inversion model for geological exploration of the present invention.
In order to deepen the understanding of the invention, the invention will be further described in detail with examples, which are only used to explain the invention and do not constitute a limitation on the protection scope of the invention.
As shown in figs. 1 and 2, this embodiment provides a deep exploration method for lithium ore in salt lake, comprising:
S1: establishing a geological exploration inversion model, acquiring the exploration data of the developed salt lake area based on Internet technology and wide-area electromagnetic method, establishing a three-dimensional digital model by combining with Surpac software, and performing training and optimization to obtain the geological exploration inversion model; where the establishment method is:
S101: data acquisition: acquiring a large number of geological structure movement data and borehole data of the developed salt lake area based on the Internet, and then conducting field wide-area electromagnetic method detection to obtain detection data, and combining the obtained data into exploration data;
S102: data processing: sorting out the obtained exploration data and dividing into a reference data set, a training data set and a verification optimization data set, when the exploration data are divided, all the data in a salt lake area are divided into groups, and the division ratio of the reference data set, the training data set and the verification and optimization data set is 2:6:2;
S103: establishing a model: establishing a three-dimensional digital model by combining the reference data set with Surpac software, then training the established three-dimensional digital model by using the training data set, and finally verifying andJ503855 optimizing the trained model by using the verification and optimization data set to obtain the geological exploration inversion model.
S2: establishing a seismic profile, obtaining historical geological tectonic movement data of the salt lake area to be explored by internet technology, carrying out field drilling to obtain drilling data, and combining the geological tectonic movement data and drilling data to construct a seismic profile to obtain profile data;
When constructing seismic profile, the strata interface and unconformity section are used as the basis to analyse and divide the layers, and the boundaries of the layers are identified, and then the seismic profile is constructed by combining the field borehole layer distribution and data to obtain the deep profile data of salt lake.
S3: electromagnetic survey: using the wide-area electromagnetic method to carry out on-the-spot detection in the salt lake area, and carrying out two-dimensional geological inversion according to the detection data to obtain the interpreted stratum overall distribution characteristic data; the exact number of layers of underground brine layer is determined at the same time as the field detection data is obtained by wide-area electromagnetic method, and then the remote sensing image data is obtained after the wide-area electromagnetic method detection, and the lithium concentration in shallow and surface layers of salt lake is quickly obtained by inversion with LightGBM algorithm, and finally the overall distribution characteristic data of strata is obtained by two-dimensional geological inversion.
S4: inversion of the stratum model, introducing the profile data constructed in S2 and the stratum overall distribution characteristic data obtained in S3 as inputs into the geological exploration inversion model for inversion simulation, obtaining the stratum model and outputting inversion data; the stratum model obtained by the inversion simulation in S4 includes the distribution of lithium deposits, lithium-containing brine layers, shallow and surface lithium resources and various intermediate strata, and the output inversion data are only the distribution of lithium deposits, lithium-containing brine layers and surface lithiubtJ503855 resources; the distribution of various intermediate strata is used to analyse and determine the development and mining method of the salt lake in S5.
S5: analysing the results, analysing and determining the distribution of the deep lithium ore and the brine containing lithium resources in the salt lake according to the stratum model obtained by inversion combined with the inversion data, and completing the exploration of the generated lithium ore.
According to the inversion data and the distribution data of various intermediate strata, the impact of resource exploitation on the environment is comprehensively considered when determining the mining method, and the lithium resources in the salt lake are fully developed with environmental protection as the core standard.
The deep exploration method of lithium ore in salt lake explores the resources of lithium ore in salt lake by establishing an inversion model of geological exploration and combining the established seismic profile data with the data obtained from wide-area electromagnetic survey. The exploration depth is large and sensitive to stratum distribution, structure and brine area, which truly realizes efficient and fine positioning exploration of deep salt lake resources and effectively makes up for the problems of low depth, poor sensitivity and low efficiency of the existing exploration methods.
The basic principle, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments, and what is described in the above-mentioned embodiments and descriptions only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, there will be various changes and improvements in the present invention, which fall within the scope of the claimed invention. The scope of that present invention is defined by the appended claim and their equivalents.
Claims (7)
1. A deep exploration method for lithium ore in salt lake, comprising: s1: establishing a geological exploration inversion model, acquiring the exploration data of the developed salt lake area based on internet technology and wide-area electromagnetic method, establishing a three-dimensional digital model by combining with Surpac software, and performing training and optimization to obtain the geological exploration inversion model; s2: establishing a seismic profile, obtaining historical geological tectonic movement data of the salt lake area to be explored by internet technology, carrying out field drilling to obtain drilling data, and combining the geological tectonic movement data and drilling data to construct the seismic profile to obtain profile data; s3: electromagnetic survey: using the wide-area electromagnetic method for on-the-spot detection in the salt lake area, and carrying out two-dimensional geological inversion according to the detection data to obtain the interpreted stratum overall distribution characteristic data; s4: inversion of the stratum model: introducing the profile data constructed in s2 and the stratum overall distribution characteristic data obtained in s3 as inputs into the geological exploration inversion model for inversion simulation, obtaining the stratum model and outputting inversion data; s5: analysing the results: analysing and determining the distribution of the deep lithium ore and the brine containing lithium in the salt lake according to the stratum model obtained by inversion combined with the inversion data, and completing the exploration of the generated lithium ore.
2. The deep exploration method for lithium ore in salt lake according to claim 10503855 characterized in that s1 comprises: $101: data acquisition: acquiring a large number of geological structure movement data and borehole data of the developed salt lake area based on the internet technology, and then conducting detection in field by the wide-area electromagnetic method to obtain detection data, and combining the obtained data into exploration data; $102: data processing: sorting out the obtained exploration data and dividing into a reference data set, a training data set and a verification and optimization data set; $103: establishing a model: establishing a three-dimensional digital model by combining the reference data set with Surpac software, then training the established three-dimensional digital model by using the training data set, and finally verifying and optimizing the trained model by using the verification and optimization data set to obtain the geological exploration inversion model.
3. The deep exploration method for lithium ore in salt lake according to claim 2, characterized in that when dividing the exploration data in s2, all data in the salt lake area are divided into groups, and the ratio of the reference data set, the training data set and the verification and optimization data set is 2:6:2.
4. The deep exploration method for lithium ore in salt lake according to claim 1, characterized in that when constructing the seismic profile in s2, the formation interface and unconformity section are used as the basis to analyse and divide the layers, and the boundaries of the layers are identified, and then the seismic profile is constructed by combining the borehole layer distribution in field and data to obtain the deep profile data of salt lake.
5. The deep exploration method for lithium ore in salt lake according to claim #U503855 characterized in that in s3, the exact number of layers of underground brine layer is determined at the same time when the detection data in field is obtained by wide-area electromagnetic method, then the remote sensing image data is obtained after the detection by wide-area electromagnetic method, the lithium concentration in shallow layer and surface layer of salt lake is quickly obtained by inversion with LightGBM algorithm, and finally the strata overall distribution characteristic data is obtained by two-dimensional geological inversion.
6. The deep exploration method for lithium ore in salt lake according to claim 1, characterized in that the stratum model obtained by the inversion simulation in s4 includes the distribution of lithium deposits, lithium-containing brine layers, shallow lithium and surface lithium and various intermediate strata, and the output inversion data are only the distribution of lithium deposits, lithium-containing brine layers and surface lithium.
7. The deep exploration method for lithium ore in salt lake according to claim 6, characterized in that the distribution of various intermediate strata is used to analyse and determine the mining method of the salt lake in s5, and the impact of resource exploitation on the environment is comprehensively considered when determining the mining method according to the inversion data and the distribution data of various intermediate strata.
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| LU503855A LU503855B1 (en) | 2023-04-04 | 2023-04-04 | Deep exploration method for lithium ore in salt lake |
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| LU503855A LU503855B1 (en) | 2023-04-04 | 2023-04-04 | Deep exploration method for lithium ore in salt lake |
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