Multi-source data fusion method and device for geological strata

Abstract

The invention discloses a geological formation multi-source data fusion method and device. The method comprises the steps that various geological data of a target mine are extracted from geological drill holes of the target mine, and the target mine is a mine needing geological stratum modeling; acquiring position information of various geological data; performing coordinate conversion on the various geological data according to the position information of the various geological data so as to convert the various geological data into a target coordinate system, and obtaining various geological data after coordinate conversion; generating a logging two-dimensional profile map according to the various geological data after coordinate conversion; and performing multi-source data fusion on various geological data according to the logging two-dimensional profile map to obtain multi-source fusion data of the target mine. According to the method and the device, the technical problem that multi-source data information is difficult to fully utilize during geologic strata modeling due to the difficult problems of various data sources, different data quality and complex geologic structure during geologic strata modeling is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of geological data processing, and in particular to a method and device for fusing multi-source data of geological strata. Background Art

[0002] Geological stratigraphic modeling is one of the important links in geological exploration and resource evaluation. By modeling the stratigraphic structure and properties, it can provide important reference and support for geological exploration, coal resource development, and mine geological disaster prevention and control.

[0003] However, geological stratigraphic modeling faces challenges such as diverse data sources, inconsistent data quality, and complex geological structures. Traditional modeling methods find it difficult to fully utilize information from multi-source data and often ignore the correlation and comprehensiveness between data.

[0004] To address the above-mentioned problems, no effective solution has been proposed yet. Summary of the invention

[0005] The embodiment of the present invention provides a method and device for fusing multi-source data of geological strata, so as to at least solve the difficult problems faced in geological strata modeling, such as diverse data sources, uneven data quality, and complex geological structures, which make it difficult to fully utilize multi-source data information when modeling geological strata.

[0006] According to one aspect of an embodiment of the present invention, a method for fusing multi-source data of geological strata is provided, comprising: extracting a variety of geological data of a target mine from a geological borehole of the target mine, wherein the target mine is a mine that requires geological strata modeling; acquiring location information of the various geological data; performing coordinate transformation on the various geological data according to the location information of the various geological data to transform the various geological data into a target coordinate system to obtain the various geological data after coordinate transformation; generating a two-dimensional well logging profile according to the various geological data after coordinate transformation; performing multi-source data fusion on the various geological data according to the two-dimensional well logging profile to obtain multi-source fused data of the target mine.

[0007] Optionally, a variety of geological data of the target mine are extracted from the geological drill holes of the target mine, including: digitally processing a single-hole column chart of the geological drill holes of the target mine to obtain geological drill hole data; observing the surface of the target mine to obtain geological profile data; and using the underground rock strata of the target mine to identify the reflection and refraction signals of seismic waves to obtain three-dimensional seismic data.

[0008] Optionally, after using the underground rock strata of the target mine to identify the reflection and refraction signals of seismic waves to obtain three-dimensional seismic data, the multi-source data fusion method of the geological strata also includes: performing data cleaning on the three-dimensional seismic data to filter out noise values ​​and abnormal values ​​in the three-dimensional seismic data to obtain the cleaned three-dimensional seismic data; performing data correction on the cleaned three-dimensional seismic data to obtain the corrected three-dimensional seismic data.

[0009] Optionally, the two-dimensional logging profile includes: a two-dimensional lateral resistivity logging profile, a two-dimensional density logging profile, a two-dimensional long source distance gamma logging profile and a two-dimensional natural gamma logging profile; the two-dimensional natural gamma logging profile and the two-dimensional long source distance gamma logging profile are used to measure the strength of gamma rays caused by radioactive elements; the two-dimensional density logging profile is used to reflect the density changes of various substances in the formation; the lateral resistivity logging utilizes the relationship between resistivity and formation lithology, and determines the electrical characteristics of the formation by sending current underground and measuring its propagation and response in the formation.

[0010] Optionally, generating a two-dimensional well logging profile diagram based on the multiple geological data after coordinate conversion includes: importing well logging graphic data or vector data into a predetermined mapping software; determining the X-axis coordinate data and the Y-axis coordinate data of the well logging curve; generating the well logging curve based on the well logging graphic data or the vector data, the X-axis coordinate data and the Y-axis coordinate data; generating the two-dimensional well logging profile diagram based on the well logging curve.

[0011] Optionally, after generating a two-dimensional well logging profile according to the multiple geological data after coordinate conversion, the multi-source data fusion method of geological strata also includes: calibrating the surface starting point, surface ending point, important geological structure points, and sampling points in the two-dimensional well logging profile.

[0012] According to another aspect of an embodiment of the present invention, a multi-source data fusion device for geological strata is also provided, including: an extraction unit, used to extract a variety of geological data of the target mine from the geological drill hole of the target mine, wherein the target mine is a mine that requires geological strata modeling; an acquisition unit, used to acquire location information of the various geological data; a conversion unit, used to perform coordinate conversion on the various geological data according to the location information of the various geological data, so as to convert the various geological data into a target coordinate system to obtain the various geological data after coordinate conversion; a generation unit, used to generate a two-dimensional well logging profile based on the various geological data after coordinate conversion; and a fusion unit, used to perform multi-source data fusion on the various geological data according to the two-dimensional well logging profile, to obtain multi-source fused data of the target mine.

[0013] Optionally, the extraction unit includes: a digital processing module, used to digitally process the single-hole column chart of the geological drilling of the target mine to obtain geological drilling data; an observation module, used to observe the surface of the target mine to obtain geological profile data; and an identification module, used to use the underground rock strata of the target mine to identify the reflection and refraction signals of seismic waves to obtain three-dimensional seismic data.

[0014] Optionally, the multi-source data fusion device of the geological strata also includes: a data cleaning unit, which is used to identify the reflection and refraction signals of seismic waves by utilizing the underground rock strata of the target mine to obtain three-dimensional seismic data, and then perform data cleaning on the three-dimensional seismic data to filter out noise values ​​and abnormal values ​​in the three-dimensional seismic data to obtain the cleaned three-dimensional seismic data; and a data correction unit, which is used to perform data correction on the cleaned three-dimensional seismic data to obtain the corrected three-dimensional seismic data.

[0015] Optionally, the two-dimensional logging profile includes: a two-dimensional lateral resistivity logging profile, a two-dimensional density logging profile, a two-dimensional long source distance gamma logging profile and a two-dimensional natural gamma logging profile; the two-dimensional natural gamma logging profile and the two-dimensional long source distance gamma logging profile are used to measure the strength of gamma rays caused by radioactive elements; the two-dimensional density logging profile is used to reflect the density changes of various substances in the formation; the lateral resistivity logging utilizes the relationship between resistivity and formation lithology, and determines the electrical characteristics of the formation by sending current underground and measuring its propagation and response in the formation.

[0016] Optionally, the conversion unit includes: an import module for importing logging graphic data or vector data into a predetermined mapping software; a determination module for determining the X-axis coordinate data and Y-axis coordinate data of the logging curve; a first generation module for generating the logging curve based on the logging graphic data or the vector data, the X-axis coordinate data and the Y-axis coordinate data; and a second generation module for generating the two-dimensional logging profile based on the logging curve.

[0017] Optionally, the multi-source data fusion device of the geological strata also includes: a calibration module, which is used to calibrate the surface starting point, surface ending point, important geological structure points and sampling points in the two-dimensional well logging profile after generating the two-dimensional well logging profile according to the multiple geological data after coordinate conversion.

[0018] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein the program executes any one of the multi-source data fusion methods for geological strata described above.

[0019] According to another aspect of an embodiment of the present invention, a processor is provided, the processor being used to run a program, wherein the program, when running, executes any one of the multi-source data fusion methods for geological strata described above.

[0020] According to another aspect of an embodiment of the present invention, a computer program product is provided, comprising computer instructions, which, when executed by a processor, perform any one of the multi-source data fusion methods for geological formations described above.

[0021] In an embodiment of the present invention, a plurality of geological data of a target mine are extracted from a geological borehole of the target mine, wherein the target mine is a mine that needs to be modeled for geological strata; the location information of the plurality of geological data is obtained; the plurality of geological data are coordinate-converted according to the location information of the plurality of geological data, so as to convert the plurality of geological data into a target coordinate system, and the plurality of geological data after coordinate conversion is obtained; a two-dimensional well logging profile is generated according to the plurality of geological data after coordinate conversion; and multi-source data fusion is performed on the plurality of geological data according to the two-dimensional well logging profile, and the multi-source fusion data of the target mine is obtained. Through the technical scheme provided by the present invention, the purpose of providing strong support for the fields of geological exploration, coal resource development, and prevention and control of mine geological disasters is achieved by comprehensively analyzing and processing data from various channels, and the present invention has the advantages of rich and diverse data, mutual verification and supplementation of various data, and the model is closer to the real geological situation, etc., and can effectively fill the vacant area in the data modeling of simple geological drilling results, thereby solving the problem of diverse data sources, different data quality, and complex geological structure in the process of geological layer modeling, which makes it difficult to make full use of the technical problem of multi-source data information in the process of geological layer modeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 It is a hardware structure block diagram of a mobile terminal of a multi-source data fusion method of a geological stratum according to an embodiment of the present invention;

[0024] Figure 2 is a flow chart of a multi-source data fusion method of geological strata according to an embodiment of the present invention;

[0025] Figure 3 is a flow chart of a multi-source data fusion method for transparent geological stratum modeling according to an embodiment of the present invention;

[0026] Figure 4is a flow chart of a point-line-surface-volume stratigraphic data modeling method based on geographic information technology according to an embodiment of the present invention;

[0027] Figure 5 Schematic diagram of a multi-source data fusion device for geological formations according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] As introduced in the background technology, the related art faces the problems of diverse data sources, uneven data quality, and complex geological structures when modeling geological layers, making it difficult to fully utilize multi-source data information when modeling geological layers. In an embodiment of the present invention, a multi-source data fusion method and device for geological layers, a computer-readable storage medium, a processor, and a computer program product are provided.

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] The method embodiments provided in the embodiments of the present invention can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal for a multi-source data fusion method of a geological formation according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is for illustration only and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0033] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the multi-source data fusion method of geological strata in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is realized. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, corporate intranets, local area networks, mobile communication networks and combinations thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0034] According to an embodiment of the present invention, a method embodiment of a multi-source data fusion method for geological strata is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0035] Figure 2 is a flow chart of a multi-source data fusion method of geological strata according to an embodiment of the present invention. Figure 2 As shown, the multi-source data fusion method of the geological stratum includes the following steps:

[0036] Step S202, extracting various geological data of the target mine from the geological borehole of the target mine, wherein the target mine is a mine that requires geological stratigraphic modeling.

[0037] In this embodiment, a multi-professional data fusion database of a mine is established to uniformly store and call geological data. The multi-professional data fusion data involves geographic information data, geological drilling data, geological profile data, three-dimensional seismic data, logging results data and geological report data, which not only realizes mutual interpretation and verification between data, but also facilitates unified storage, management and call of data at any time. Based on the multi-professional data fusion database, detailed data extraction and analysis are carried out to provide basic data support for multi-source data fusion.

[0038] Among them, the geological drilling data is digitized from a single-hole column chart. The geological drilling data is the main body and basis for accurate stratigraphic modeling. Based on the borehole mouth coordinate (X, Y, Z) data of the borehole combined with the bottom boundary depth data of the stratigraphic unit, the X, Y, Z coordinate data sets of the bottom boundary of each stratigraphic unit are formed.

[0039] In addition, 3D seismic uses the reflection and refraction signals of seismic waves from underground rock strata to identify underground stratum boundaries and geological structures. The characteristics of the reflected wave amplitude, frequency, phase, etc. in 3D seismic data can reflect the nature and distribution of underground strata. Based on these characteristics, the stratum boundaries on the 2D seismic profile can be identified and calibrated. After processing and analyzing the data, the 3D distribution of underground strata can be obtained, and the boundaries, lithology, thickness, and structure (faults, folds, uplifts, depressions) between different strata can be identified. The thickness, area, and volume of coal seams can even be estimated, providing data support for stratum modeling and coal resource evaluation.

[0040] Step S204, obtaining location information of various geological data.

[0041] Step S206, coordinate conversion is performed on the various geological data according to the position information of the various geological data, so as to convert the various geological data into a target coordinate system, and obtain the various geological data after coordinate conversion.

[0042] In this embodiment, the processing and analysis of three-dimensional seismic data first cleans the noise and outliers in the original data, and then corrects the three-dimensional seismic data based on a unified geodetic coordinate system to prevent the offset between different result data in data fusion, that is, to establish a three-dimensional model based on the geodetic coordinate system and extract a two-dimensional profile. The two-dimensional profile is divided into a two-dimensional profile of reflection wave amplitude, a two-dimensional profile of reflection wave frequency, and a two-dimensional profile of reflection wave phase. The geodetic coordinates of the starting point, end point, important geological structure point, and sampling point of the figure are the same as the geological profile line.

[0043] Step S208, generating a two-dimensional well logging profile according to the various geological data after coordinate conversion.

[0044] Step S210, multi-source data fusion is performed on various geological data according to the two-dimensional logging profile, and multi-source fusion data of the target mine is obtained.

[0045] Through the above steps, various geological data of the target mine can be extracted from the geological drill holes of the target mine, wherein the target mine is a mine that needs to perform geological stratigraphic modeling; obtain the location information of various geological data; perform coordinate transformation on the various geological data according to the location information of the various geological data, so as to transform the various geological data into the target coordinate system, and obtain the various geological data after coordinate transformation; generate a two-dimensional well logging profile according to the various geological data after coordinate transformation; perform multi-source data fusion on the various geological data according to the two-dimensional well logging profile. The multi-source fusion data of the target mine realizes the purpose of providing strong support for geological exploration, coal resource development, mine geological disaster prevention and control and other fields through comprehensive analysis and processing of data from various channels. It has the advantages of rich and diverse data, mutual verification and supplementation of various data, and the model is closer to the real geological conditions, etc., and can effectively fill the vacant areas in the data modeling of simple geological drilling results.

[0046] Therefore, the above-mentioned technical solution provided by the embodiment of the present invention solves the technical problem faced in geological layer modeling, such as diverse data sources, inconsistent data quality, and complex geological structures, which makes it difficult to fully utilize multi-source data information when modeling geological layers.

[0047] According to the above-mentioned embodiment of the present invention, various geological data of the target mine are extracted from the geological drill holes of the target mine, including: digitally processing the single-hole column chart of the geological drill holes of the target mine to obtain geological drill hole data; observing the surface of the target mine to obtain geological profile data; and using the underground rock strata of the target mine to identify the reflection and refraction signals of seismic waves to obtain three-dimensional seismic data.

[0048] In this embodiment, the frequency of three-dimensional seismic reflection waves can reflect the characteristics and properties of the formation and provide data support for formation modeling. Low-frequency reflection waves have the characteristics of long period, high absorption, slow energy decay, etc., which reflect the overall properties and structure of the formation, and relatively dense and homogeneous formations, such as mudstone, shale, carbonate rock, or formations containing water or gas; medium-frequency reflection waves have the characteristics of moderate period, medium absorption rate, moderate energy decay, etc., which reflect the lithology changes and sedimentary environment of the formation, and relatively uniform and continuous formations, such as coal-bearing formations, oil and gas-bearing formations, ordinary shale layers and ordinary sandstone layers, which can reflect typical sedimentary rock formations; high-frequency reflection waves have the characteristics of shorter period, low yield, high energy, fast energy decay, etc., which reflect geological details and formation details, and the formations are relatively dense and thin, such as thin sandstone, thin carbonate rock, faults, tectonic lines, etc. Based on the above characteristics of the reflection wave frequency, a two-dimensional profile of the seismic reflection wave frequency of the formation is established, in which the x-axis represents the geodetic coordinates on the surface and the y-axis represents the frequency range.

[0049] Among them, the amplitude of three-dimensional seismic reflection waves reflects the physical property changes of the strata. Strong amplitude areas represent the interface or anomaly of underground strata; weak amplitude areas represent the transition or edge areas of strata; amplitude anomaly areas are abnormally high or abnormally low amplitude areas, and there will be structural changes or strata anomalies on the surface; decreasing amplitude indicates the gradual thinning of strata; increasing amplitude indicates the gradual thickening of strata; reflection coefficient change areas represent changes in stratum lithology or density; amplitude peaks represent the interface or specific geological features of underground strata. Based on the above reflection wave phase characteristics, a two-dimensional profile of the stratum seismic reflection wave phase is extracted, where the x-axis represents the geodetic coordinates, the y-axis represents the depth (meters), and the main body of the figure represents the amplitude information of the seismic wave, and the profile is displayed in color or grayscale gradients.

[0050] In addition, the phase of three-dimensional seismic reflection waves also reflects the characteristics and properties of the strata. The amplitude of the positive phase reflection waveform increases first and then decreases with time, reflecting the existence of stratum interfaces and faults; the amplitude of the negative phase reflection waveform decreases first and then increases with time, indicating changes in stratum properties or structures, such as changes in lithology and porosity; the zero-phase reflection waveform amplitude is in the middle position on the time axis, indicating that the stratum is a uniform and continuous stratum without obvious changes. Based on the above reflection wave phase characteristics, a two-dimensional profile of the stratum seismic reflection wave phase is established, with the x-axis representing the geodetic coordinates, the y-axis representing the depth (meters), and the main body of the figure representing the phase information of the seismic wave.

[0051] According to the above-mentioned embodiment of the present invention, after the reflection and refraction signals of seismic waves are identified by using the underground rock strata of the target mine to obtain three-dimensional seismic data, the multi-source data fusion method of the geological strata also includes: performing data cleaning on the three-dimensional seismic data to filter out noise values ​​and abnormal values ​​in the three-dimensional seismic data to obtain cleaned three-dimensional seismic data; performing data correction on the cleaned three-dimensional seismic data to obtain corrected three-dimensional seismic data.

[0052] In this embodiment, the noise and outliers in the original data can be cleaned, and then the three-dimensional seismic data can be corrected based on a unified geodetic coordinate system to prevent the offset between different result data during data fusion.

[0053] According to the above embodiment of the present invention, the two-dimensional logging profile includes: a two-dimensional lateral resistivity logging profile, a two-dimensional density logging profile, a two-dimensional long source distance gamma logging profile and a two-dimensional natural gamma logging profile; the two-dimensional natural gamma logging profile and the two-dimensional long source distance gamma logging profile are used to measure the strength of gamma rays caused by radioactive elements; the two-dimensional density logging profile is used to reflect the density changes of various substances in the formation; the lateral resistivity logging utilizes the relationship between resistivity and formation lithology, and determines the electrical characteristics of the formation by sending current underground and measuring its propagation and response in the formation.

[0054] In this embodiment, the collected logging curves are divided into two categories, one is JPG format pictures, and the other is vector logging graphics. For unified application and database construction, the above collected data are corrected and the logging data are extracted. Based on the unified logging results database, two-dimensional profiles of four types of logging results, namely lateral resistivity, density, long source distance gamma, and natural gamma, are established. The geodetic coordinates of the starting point, end point, important geological structure point, and sampling point of the two-dimensional profile are the same as the geological profile line.

[0055] Among them, the natural gamma logging curve (gamma ray intensity) is used to measure the strength of gamma rays caused by radioactive elements such as thorium, uranium and potassium. Generally, shale and strata containing radioactive minerals will show higher natural gamma logging curve values, while rocks such as sandstone and limestone will show lower values ​​due to strata containing lower radioactive minerals. The shape of the natural gamma logging curve varies depending on factors such as the nature of the stratum, lithology and geological structure. In particular, the stratification interface curve of the stratum will have obvious changes, which can be used to identify and draw the coal-rock boundary. Based on the above advantages, a two-dimensional profile of the natural gamma logging curve was established for stratum comparison modeling. The parameters include depth, natural gamma ray intensity, stratum markers, etc., where the depth (meter) is used as the y-axis and the natural gamma ray intensity is used as the x-axis. The stratum marker (boundary) is used to divide the stratum. The stratum marker (boundary) usually corresponds to the significant change in the natural gamma ray intensity or the location of the peak.

[0056] Long-range gamma logging measures the intensity of gamma rays emitted by radioactive sources in the formation, such as gamma rays emitted by radioactive isotopes such as thorium or cesium. Generally, the gamma ray intensity of formations rich in radioactive elements such as shale increases, while formations with less radioactive elements such as sandstone will weaken the gamma ray intensity. This technical data is used in fields such as oil exploration, mineral exploration, and geological surveys. Especially in coal mine exploration, it can measure the radioactive data of coal seams and their surrounding rocks, which is helpful for the identification of coal-rock boundaries and the analysis of geological characteristics. In the process of establishing a two-dimensional profile of the long-range gamma logging curve in the study area, the main parameters such as depth (meters) are used as the y-axis, gamma ray intensity as the x-axis, characteristic peaks as auxiliary x-axis, and formation markers. The formation markers (boundaries) usually correspond to significant changes in the intensity of long-range gamma rays or the location of peaks.

[0057] The above-mentioned density logging curve analysis of formation boundaries is to identify and divide formation boundaries based on the changing characteristics of the density logging curve. Density logging curves usually reflect the density changes of various substances in the formation. By analyzing the changing characteristics of the density logging curve, the boundaries between different formations can be determined. In particular, density logging curves can help identify and confirm coal seams in underground rock formations because coal seams usually have relatively low density. By analyzing the changing characteristics of the density logging curve, the existence, thickness and distribution of coal seams can be determined. In the process of establishing a two-dimensional profile of the density logging curve of the study area, the depth is used as the y-axis, the density logging curve characteristics are used as the x-axis, and the formation identification is used as the main parameters. The formation boundary usually corresponds to the significant change of the density logging curve or the location of the peak.

[0058] The above-mentioned lateral resistivity logging is to use the lateral resistivity imaging logging instrument, and utilize the relationship between resistivity and lithology of the formation. By sending current underground and measuring its propagation and response in the formation, the electrical characteristics of the formation are inferred, the resistivity in different directions is detected, and the corresponding measurement data is provided. It is widely used in identifying cracks, pores, aquiferous formations, and groundwater level monitoring of underground rocks, especially in helping to analyze the geological structure and changes of coal seams, and identifying fault zones, structural deformations, and characteristics of geological systems. It can provide effective data support. In the process of establishing the two-dimensional profile of the lateral resistivity logging curve of the study area, the main parameters such as depth (meter) as the y-axis, lateral resistivity logging curve characteristics (ohm·meter) as the x-axis, and stratigraphic division are used. The stratigraphic boundary usually corresponds to the significant change of the density logging curve or the location of the peak.

[0059] According to the above embodiment of the present invention, a two-dimensional well logging profile is generated based on a variety of geological data after coordinate conversion, including: importing well logging graphic data or vector data into a predetermined mapping software; determining the X-axis coordinate data and Y-axis coordinate data of the well logging curve; generating a well logging curve based on the well logging graphic data or vector data, the X-axis coordinate data and the Y-axis coordinate data; and generating a two-dimensional well logging profile based on the well logging curve.

[0060] In an embodiment of the present invention, a method for extracting a logging curve is as follows: first, the logging curve graphic data or vector data is imported into a general mapping software, and then the x-axis (i.e., the maximum and minimum values ​​of the distribution range of physical parameters such as lateral resistivity, density, long source distance gamma, and natural gamma) and the y-coordinate (i.e., the maximum and minimum values ​​of the absolute elevation of the formation of the extracted data) are determined respectively, and then the monitoring value of the curve is automatically extracted, and a multi-source database of logging curves is established to provide data support for subsequent two-dimensional profile mapping and formation comparison modeling.

[0061] According to the above embodiment of the present invention, after generating a two-dimensional well logging profile diagram based on multiple geological data after coordinate conversion, the multi-source data fusion method of the geological strata may also include: calibrating the surface starting point, surface ending point, important geological structure points, and sampling points in the two-dimensional well logging profile diagram.

[0062] In this embodiment, geological profile data is a method of displaying underground geological structure and stratum distribution by filling in the observed geological information on the map through field observation and measurement on the surface. It has the following characteristics: first, the stratum is divided into different lithofacies units according to the rock types and properties observed on the geological profile map; second, the stratum is divided into different structural units according to the structural features on the geological profile map, such as faults, folds, etc.; third, the boundary between different strata is determined according to the characteristics of the stratum boundary on the geological profile map. Based on the above advantages, the unified geodetic coordinate control point X, Y, and Z coordinates are used in stratum modeling to accurately calibrate the surface starting point, end point, important geological structure point, sampling point, etc. in the geological profile map, providing calibration reference points for subsequent fusion analysis of other types of profile data.

[0063] Figure 3 is a flow chart of a multi-source data fusion method for transparent geological stratum modeling according to an embodiment of the present invention. Figure 3As shown, first, a multi-professional data fusion database of the mine is needed, such as geological exploration results data, three-dimensional seismic data, and geophysical logging data. Among them, the geological exploration results data may include: based on geological drilling data and geological profiles; the three-dimensional seismic data may include: based on three-dimensional seismic amplitude data, based on three-dimensional seismic frequency data, and based on three-dimensional seismic phase data; the above-mentioned geophysical logging data may include: based on lateral resistivity data, based on density data, based on long source distance gamma data, and based on natural gamma data.

[0064] like Figure 3 As shown, in the embodiment of the present invention, it is also necessary to rely on geographic information technology: unify the geodetic coordinates, extract the longitudinal two-dimensional profile, and draw the stratigraphic boundary line; finally, a transparent geological stratigraphic model can be constructed based on the processing results of geographic information technology.

[0065] Figure 4 is a flow chart of a point-line-surface-volume stratum data modeling method based on geographic information technology according to an embodiment of the present invention, such as Figure 4 As shown, based on geographic information technology and unified geodetic coordinates, multi-source data fusion is performed using line data such as geological profiles, seismic reflection wave amplitude two-dimensional profiles, seismic reflection wave frequency two-dimensional profiles, seismic reflection wave phase two-dimensional profiles, natural gamma two-dimensional profiles, long source distance gamma two-dimensional profiles, lateral resistivity two-dimensional profiles, and density two-dimensional profiles to achieve encryption of the stratigraphic interface point data set generated by the original drilling data, drawing of geological boundaries, and calibration of the original geological boundaries, ultimately obtaining a new stratigraphic interface point data set, and then generating a transparent geological body data model.

[0066] The technical solution provided by the above-mentioned embodiment of the present invention overcomes the limitations of the traditional geological stratum modeling method, and realizes accurate modeling and description of the underground stratum structure and properties through data fusion and comprehensive analysis. At the same time, it can provide a good integration of spatiotemporal geological data with traditional geological data, which is convenient for unified storage, management and updating, and breaks the industry barriers between data in different professional fields, so that multi-source data can be better interconnected and mutually verified, giving geological data spatiotemporal attributes, linking isolated multi-source geological data, and truly realizing the spatiotemporal transparent visualization effect of geological strata.

[0067] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that the present application is not limited by the described order of actions, because according to the present application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

[0068] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0069] According to an embodiment of the present invention, a multi-source data fusion device for geological strata is provided for implementing the multi-source data fusion method of geological strata. Figure 5 Schematic diagram of a multi-source data fusion device for geological formations according to an embodiment of the present invention. Figure 5 As shown, the device includes: an extraction unit 501, an acquisition unit 503, a conversion unit 505, a generation unit 507 and a fusion unit 509. The multi-source data fusion device of the geological strata is described below.

[0070] The extraction unit 501 is used to extract various geological data of the target mine from the geological drill hole of the target mine, wherein the target mine is a mine that needs to be modeled for geological formations.

[0071] The acquisition unit 503 is used to acquire the location information of various geological data.

[0072] The conversion unit 505 is used to perform coordinate conversion on the various geological data according to the position information of the various geological data, so as to convert the various geological data into a target coordinate system and obtain the various geological data after coordinate conversion.

[0073] The generating unit 507 is used to generate a two-dimensional well logging profile according to the various geological data after coordinate conversion.

[0074] The fusion unit 509 is used to perform multi-source data fusion on various geological data according to the two-dimensional logging profile, and to obtain multi-source fused data of the target mine.

[0075] It should be noted here that the above-mentioned extraction unit 501, acquisition unit 503, conversion unit 505, generation unit 507 and fusion unit 509 correspond to steps S202 to S210 in the above-mentioned embodiments, and the five units have the same instances and application scenarios implemented by the corresponding steps, but are not limited to the contents disclosed in the above-mentioned embodiments.

[0076] As can be seen from the above, in the scheme recorded in the above-mentioned embodiment of the present invention, an extraction unit can be used to extract various geological data of the target mine from the geological drill hole of the target mine, wherein the target mine is a mine that needs to be modeled for geological stratigraphic modeling; the acquisition unit is used to obtain the location information of various geological data; the conversion unit is used to perform coordinate conversion on the various geological data according to the location information of the various geological data, so as to convert the various geological data into the target coordinate system, and obtain the various geological data after the coordinate conversion; the generation unit is used to generate a two-dimensional well logging profile according to the various geological data after the coordinate conversion; the fusion unit is used to perform multi-source data fusion on the various geological data according to the two-dimensional well logging profile. The multi-source fusion data of the target mine realizes the purpose of providing strong support for geological exploration, coal resource development, mine geological disaster prevention and control and other fields by comprehensively analyzing and processing data from various channels. It has the advantages of rich and diverse data, mutual verification and supplementation of multiple data, and the model is closer to the real geological conditions, and can effectively fill the vacant areas in the data modeling of simple geological drilling results.

[0077] Therefore, the above-mentioned technical solution provided by the embodiment of the present invention solves the technical problem faced in geological layer modeling, such as diverse data sources, inconsistent data quality, and complex geological structures, which makes it difficult to fully utilize multi-source data information when modeling geological layers.

[0078] Optionally, the extraction unit includes: a digital processing module for digitally processing a single-hole column chart of the geological drilling of the target mine to obtain geological drilling data; an observation module for observing the surface of the target mine to obtain geological profile data; and an identification module for identifying the reflection and refraction signals of seismic waves using the underground rock strata of the target mine to obtain three-dimensional seismic data.

[0079] Optionally, the multi-source data fusion device of the geological strata also includes: a data cleaning unit, which is used to identify the reflection and refraction signals of seismic waves by utilizing the underground rock strata of the target mine to obtain three-dimensional seismic data, and then perform data cleaning on the three-dimensional seismic data to filter out noise values ​​and abnormal values ​​in the three-dimensional seismic data to obtain cleaned three-dimensional seismic data; and a data correction unit, which is used to perform data correction on the cleaned three-dimensional seismic data to obtain corrected three-dimensional seismic data.

[0080] Optionally, the two-dimensional logging profile includes: a two-dimensional lateral resistivity logging profile, a two-dimensional density logging profile, a two-dimensional long source distance gamma logging profile and a two-dimensional natural gamma logging profile; the two-dimensional natural gamma logging profile and the two-dimensional long source distance gamma logging profile are used to measure the strength of gamma rays caused by radioactive elements; the two-dimensional density logging profile is used to reflect the density changes of various substances in the formation; the lateral resistivity logging utilizes the relationship between resistivity and formation lithology, and determines the electrical characteristics of the formation by sending current underground and measuring its propagation and response in the formation.

[0081] Optionally, the conversion unit includes: an import module for importing logging graphic data or vector data into a predetermined mapping software; a determination module for determining the X-axis coordinate data and Y-axis coordinate data of the logging curve; a first generation module for generating a logging curve based on the logging graphic data or vector data, the X-axis coordinate data and the Y-axis coordinate data; and a second generation module for generating a two-dimensional logging profile based on the logging curve.

[0082] Optionally, the multi-source data fusion device of the geological strata also includes: a calibration module, which is used to calibrate the surface starting point, surface ending point, important geological structure points and sampling points in the two-dimensional well logging profile after generating the two-dimensional well logging profile based on the various geological data after coordinate conversion.

[0083] According to another aspect of an embodiment of the present invention, a processor is provided, and the processor is used to run a program, wherein when the program is run, any one of the multi-source data fusion methods of geological strata is executed.

[0084] According to another aspect of an embodiment of the present invention, a computer program product is provided, comprising computer instructions, which, when executed by a processor, execute any one of the above-mentioned methods for multi-source data fusion of geological formations.

[0085] According to another aspect of an embodiment of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium comprising a stored program, wherein the program executes any one of the above-mentioned multi-source data fusion methods for geological strata.

[0086] Optionally, in this embodiment, the computer-readable storage medium may be located in any one of the computer terminals in a computer terminal group in a computer network, or in any one of the communication devices in a communication device group.

[0087] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: extracting a variety of geological data of the target mine from the geological drill holes of the target mine, wherein the target mine is a mine that requires geological stratigraphic modeling; obtaining location information of the various geological data; performing coordinate transformation on the various geological data according to the location information of the various geological data to transform the various geological data into a target coordinate system to obtain the various geological data after coordinate transformation; generating a two-dimensional well logging profile based on the various geological data after coordinate transformation; performing multi-source data fusion on the various geological data according to the two-dimensional well logging profile to obtain multi-source fused data of the target mine.

[0088] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: digitizing a single-hole column chart of geological drilling of the target mine to obtain geological drilling data; observing the surface of the target mine to obtain geological profile data; and using the underground rock strata of the target mine to identify the reflection and refraction signals of seismic waves to obtain three-dimensional seismic data.

[0089] Optionally, in this embodiment, the computer-readable storage medium is configured to store program code for executing the following steps: after identifying the reflection and refraction signals of seismic waves using the underground rock strata of the target mine to obtain three-dimensional seismic data, performing data cleaning on the three-dimensional seismic data to filter out noise values ​​and abnormal values ​​in the three-dimensional seismic data to obtain cleaned three-dimensional seismic data; performing data correction on the cleaned three-dimensional seismic data to obtain corrected three-dimensional seismic data.

[0090] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: by importing logging graphic data or vector data into a predetermined mapping software; determining the X-axis coordinate data and Y-axis coordinate data of the logging curve; generating a logging curve based on the logging graphic data or vector data, the X-axis coordinate data and the Y-axis coordinate data; and generating a two-dimensional logging profile based on the logging curve.

[0091] Optionally, in this embodiment, the computer-readable storage medium is configured to store program codes for executing the following steps: after generating a two-dimensional well logging profile diagram based on multiple geological data after coordinate conversion, calibrating the surface starting point, surface ending point, important geological structure points, and sampling points in the two-dimensional well logging profile diagram.

[0092] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.

[0093] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0094] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0095] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0096] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0097] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

[0098] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-source data fusion method for geological strata, characterized in that: include: Extracting a variety of geological data of the target mine from a geological borehole of the target mine, wherein the target mine is a mine that requires geological stratigraphic modeling; Obtaining location information of the plurality of geological data; Performing coordinate transformation on the multiple geological data according to the position information of the multiple geological data, so as to transform the multiple geological data into a target coordinate system, and obtaining the multiple geological data after coordinate transformation; Generate a two-dimensional well logging profile according to the multiple geological data after coordinate conversion; The multiple geological data are fused with multiple sources according to the two-dimensional well logging profile to obtain the multi-source fused data of the target mine.

2. The multi-source data fusion method of geological strata according to claim 1 is characterized in that: Extract various geological data of the target mine from the geological drill holes of the target mine, including: Digitally processing a single-hole column chart of geological drilling of the target mine to obtain geological drilling data; Observe the surface of the target mine to obtain geological profile data; The reflection and refraction signals of seismic waves are identified by using the underground rock layers of the target mine to obtain three-dimensional seismic data.

3. The multi-source data fusion method of geological strata according to claim 1 is characterized in that: After the reflection and refraction signals of seismic waves are identified by using the underground rock formations of the target mine to obtain three-dimensional seismic data, the method further includes: Performing data cleaning on the three-dimensional seismic data to filter out noise values ​​and abnormal values ​​in the three-dimensional seismic data to obtain the cleaned three-dimensional seismic data; The cleaned three-dimensional seismic data is subjected to data correction to obtain the corrected three-dimensional seismic data.

4. The multi-source data fusion method of geological strata according to claim 1, characterized in that: The two-dimensional well logging profile includes: a two-dimensional lateral resistivity well logging profile, a two-dimensional density well logging profile, a two-dimensional long source distance gamma well logging profile and a two-dimensional natural gamma well logging profile; the two-dimensional natural gamma well logging profile and the two-dimensional long source distance gamma well logging profile are used to measure the strength of gamma rays caused by radioactive elements; the two-dimensional density well logging profile is used to reflect the density changes of various substances in the formation; the lateral resistivity well logging utilizes the relationship between resistivity and formation lithology, and determines the electrical characteristics of the formation by sending current underground and measuring its propagation and response in the formation.

5. The multi-source data fusion method of geological strata according to claim 1, characterized in that: Generate a two-dimensional well logging profile according to the various geological data after coordinate conversion, including: By importing logging graphic data or vector data into predetermined mapping software; Determine the X-axis coordinate data and the Y-axis coordinate data of the logging curve; Generate the logging curve according to the logging graphic data or the vector data, the X-axis coordinate data and the Y-axis coordinate data; The well logging two-dimensional profile diagram is generated according to the well logging curve.

6. The multi-source data fusion method of geological strata according to claim 1, characterized in that: After generating a two-dimensional well logging profile according to the plurality of geological data after coordinate conversion, the method further includes: The surface starting point, surface ending point, important geological structure points and sampling points in the two-dimensional well logging profile are calibrated.

7. A multi-source data fusion device for geological formations, characterized in that: include: An extraction unit, used for extracting a variety of geological data of a target mine from a geological borehole of the target mine, wherein the target mine is a mine that needs geological stratigraphic modeling; An acquisition unit, used for acquiring location information of the plurality of geological data; A conversion unit, configured to perform coordinate conversion on the multiple geological data according to the position information of the multiple geological data, so as to convert the multiple geological data into a target coordinate system, and obtain the multiple geological data after coordinate conversion; A generating unit, used for generating a two-dimensional well logging profile according to the plurality of geological data after coordinate conversion; A fusion unit is used to perform multi-source data fusion on the various geological data according to the two-dimensional logging profile, and to obtain the multi-source fused data of the target mine.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the multi-source data fusion method of geological formations as described in any one of claims 1 to 7.

9. A processor, characterized in that: The processor is used to run a program, wherein the program, when running, executes the multi-source data fusion method of geological strata described in any one of claims 1 to 7.

10. A computer program product comprising computer instructions, characterized in that: When the computer instructions are executed by a processor, the multi-source data fusion method of geological formations described in any one of claims 1 to 7 is performed.

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