CN111459955A - Three-dimensional geological structure model automatic updating method and system based on GIS platform - Google Patents
Three-dimensional geological structure model automatic updating method and system based on GIS platform Download PDFInfo
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Abstract
The invention discloses a three-dimensional geological structure model automatic updating method and a system based on a GIS platform, comprising the following steps: dividing a modeling area of the three-dimensional geological structure model into a plurality of sub-areas; acquiring a plurality of drilling data in each sub-area, and determining the correlation and correlation factors among the plurality of drilling data; obtaining updated parameters of the three-dimensional geological structure model, re-obtaining a plurality of drilling data in each sub-area, and determining new correlation and correlation factors among the plurality of drilling data; and comparing the new correlation degree and the correlation factor in each sub-region with the correlation degree and the correlation factor before updating respectively, determining the sub-region needing parameter updating, and updating the three-dimensional geological structure model. The invention has the beneficial effects that: the detection part of the invention adopts a real-time acquisition mode to carry out real-time and rapid analysis and processing on the modeling data, thereby realizing rapid and efficient automatic updating of the three-dimensional geological structure model.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a three-dimensional geological structure model automatic updating method and system based on a GIS platform.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
With the development of society and national economy, the work of geological disaster investigation evaluation, early warning, mineral resource storage and the like is increasingly important. At present, although the national and local resource departments in China have remarkable results in geological survey, geological prospecting and the like, a plurality of technical problems are encountered in the working process, particularly the exploration of complex geologic bodies. In order to meet the requirements of complex geologic body exploration, the three-dimensional model is applied to provide powerful support for geospatial analysis, geological phenomenon interpretation and related work. The rapid construction and updating technology of the three-dimensional model of the complex geologic body is briefly analyzed based on drilling exploration.
A GIS (global information system) is based on geographic spatial data, is combined with an information technology, and carries out related work such as acquisition, sorting, classification, analysis, management, storage and the like of geographic information under the support of related software; the GIS can store mass data, perform complex logic operation and deep mining on the data, and realize spatial information display, query and analysis, spatial decision support and the like. In the stage of the construction management of the water conservancy and hydropower engineering, the GIS technology can be used for integrating and managing the external environment information of the building.
With the development of technologies, the technology for modeling geological structures by using a GIS (geographic information system) platform has been rapidly developed. The three-dimensional geological modeling and visualization technology is one of core technologies in the field of geospatial information science, and is also a key and basic technology for the construction of three-dimensional geographic and geological information systems.
The three-dimensional visual representation of the geological structure can provide more real and visual description of the underground geological phenomena and structures, and plays an important role in quantitative evaluation of underground water, petroleum and solid mineral resources. The spatial heterogeneity and connectivity of reservoirs play an important control role in the migration of subsurface fluids, which is crucial to quantifying and predicting the formation and distribution of subsurface resources. The method can provide technical support for three-dimensional reconstruction of anisotropic underground complex geological structures based on the GIS platform, and has been well applied to a plurality of geological fields such as reservoir simulation, hydrogeological modeling, porous medium reconstruction and the like.
In the prior art, spatial information can be determined more accurately by using data source modes such as drilling, section and contour lines, which is an important basis for simulating a three-dimensional space. When modeling the two-dimensional graph, the modification only affects the local part; in the three-dimensional modeling, local modification requires that a relevant model is also reconstructed, and the efficiency and quality are greatly influenced by the reconstruction work of the model brought by modification in the three-dimensional modeling process. The existing three-dimensional modeling software also comes in endlessly, such as godad, 3DMine, and the like. However, the three-dimensional modeling method in the prior art is fixed, and even if the three-dimensional modeling method is updated, the three-dimensional modeling method is manually updated through new data, so that the automatic updating of modeling data cannot be completed quickly and efficiently in real time.
Disclosure of Invention
In order to solve the problems, the invention provides a method and a system for automatically updating a three-dimensional geological structure model based on a GIS platform.
In some embodiments, the following technical scheme is adopted:
a three-dimensional geological structure model automatic updating method based on a GIS platform comprises the following steps:
dividing a modeling area of the three-dimensional geological structure model into a plurality of sub-areas;
acquiring a plurality of drilling data in each sub-area, and determining the correlation and correlation factors among the plurality of drilling data;
obtaining updated parameters of the three-dimensional geological structure model, re-obtaining a plurality of drilling data in each sub-area, and determining new correlation and correlation factors among the plurality of drilling data;
and comparing the new correlation degree and the correlation factor in each sub-region with the correlation degree and the correlation factor before updating respectively, determining the sub-region needing parameter updating, and updating the three-dimensional geological structure model.
According to the three-dimensional geological structure model automatic updating method based on the GIS platform, the earth information system can be utilized, the data information is combined for real-time analysis, the detection part adopts a real-time acquisition mode, and the modeling data is analyzed and processed quickly and in real time, so that the three-dimensional geological structure model can be updated quickly and efficiently.
In other embodiments, the following technical solutions are adopted:
a three-dimensional geological structure model automatic updating system based on a GIS platform comprises:
means for dividing a modeling region of the three-dimensional geological structure model into a number of sub-regions;
means for acquiring a plurality of borehole data in each sub-region, determining a correlation and correlation factor between said plurality of borehole data;
means for obtaining updated parameters of the three-dimensional geological structure model, reacquiring the plurality of borehole data in each sub-region, and determining new correlations and correlation factors between the plurality of borehole data;
and the device is used for comparing the new correlation degree and the correlation factor in each sub-region with the correlation degree and the correlation factor before updating respectively, determining the sub-region needing parameter updating and realizing the updating of the three-dimensional geological structure model.
In other embodiments, the following technical solutions are adopted:
a terminal device comprising a processor and a computer-readable storage medium, the processor being configured to implement instructions; the computer readable storage medium is used for storing a plurality of instructions, and the instructions are suitable for being loaded by a processor and executing the automatic updating method of the three-dimensional geological structure model based on the GIS platform.
In other embodiments, the following technical solutions are adopted:
a computer readable storage medium, wherein a plurality of instructions are stored, said instructions being adapted to be loaded by a processor of a terminal device and to execute the above-mentioned method for automatically updating a three-dimensional geological structure model based on a GIS platform.
Compared with the prior art, the invention has the beneficial effects that:
1) the earth information system is utilized, and data information is combined to carry out real-time analysis, so that the storage analysis of the three-dimensional address structure is realized, the data processing is displayed in real time, the query is fast and effective, and data is provided for the research of the three-dimensional geological structure.
2) The detection part of the invention adopts a real-time acquisition mode to carry out real-time and rapid analysis and processing on the modeling data, thereby realizing rapid and efficient automatic updating of the three-dimensional geological structure model.
3) The local acquisition analysis processing mode provided by the invention can improve the updating efficiency.
Drawings
FIG. 1 is a flowchart of a three-dimensional geological structure model automatic updating method based on a GIS platform according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for modeling parameters of a three-dimensional geological structure model according to an embodiment of the invention;
fig. 3 is a flowchart of a method for automatically updating a model based on updated parameters of a three-dimensional geological structure model according to an embodiment of the present invention.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example one
In one or more embodiments, the three-dimensional geological structure model automatic updating method based on the GIS platform is disclosed, the three-dimensional geological structure model automatic updating method based on the GIS platform can utilize an earth information system to analyze in real time in combination with data information, a detection part adopts a real-time acquisition mode to analyze and process modeling data in real time and rapidly, and therefore the three-dimensional geological structure model can be updated rapidly and efficiently. The three-dimensional geological structure model automatic updating method based on the GIS platform is specifically described below.
Fig. 1 describes a flow of an automatic updating method of a three-dimensional geological structure model based on a GIS platform, and the specific sequence includes the following steps:
firstly, three-dimensional geological structure model parameters are obtained, the precision of the three-dimensional geological structure model is determined to a great extent by the specific obtaining mode and precision of the three-dimensional geological structure model parameters, and errors can be reduced and the precision can be improved by utilizing multi-source data such as drilling data, section data, geophysical prospecting data (such as earthquake, electrical method, magnetic method and gravity). When the existing three-dimensional model is generated, the obtained data of the modeling area is integrally obtained and then is modeled once, and each updating is a complete updating process, so that the data updating speed is very low.
Based on this, when the drilling data is acquired, the modeling area is divided into regions, and the modeling area is divided into a plurality of sub-areas according to a preset rule.
Then, referring to fig. 2, a set of drill holes is again made in each sub-area, and the set of drill hole data is acquired to constitute a corresponding data set D. And each drill hole is provided with a sampling point, and geological layer data on the drill holes are collected from top to bottom according to an interface, wherein the geological layer data comprises geological layer boundary data and geological layer type data.
Thus, there is a corresponding set of data sets D in each sub-region, and the data sets D include borehole data (including formation boundary data and formation type data) corresponding to a plurality of boreholes in the set. The geological structure may or may not vary greatly for each sub-region. On the basis, the invention processes the drilling data corresponding to a plurality of drilling holes in the data set D respectively, obtains the correlation of the drilling data, and obtains the correlation factor based on the plurality of correlation.
Specifically, the correlation of the borehole data is determined according to the deviation of each data from the standard value in the group of data sets, and the correlation between the borehole data is determined according to the deviation degree. The acquisition of the correlation factor is determined based on the degree of the update threshold between the plurality of correlations that is deviated from the entire modeling region setting.
And at the initial stage of modeling, modeling is carried out according to the obtained parameters of the three-dimensional geological structure model by using the three-dimensional geological structure modeling model. The traditional method is to directly utilize the parameters of the three-dimensional geological structure model for modeling, the parameters are not classified in groups, the data volume processing in the modeling process is large, and the efficiency is very low.
After the primary modeling is completed, along with the continuous promotion of geological exploration work, accumulated drilling data are more and more, the required precision is higher and more, and in order to further improve the quality and the accuracy of three-dimensional model data, the three-dimensional model needs to be updated, so that the three-dimensional model can be updated according to the situation more accurately.
Referring to fig. 3, the modeling area is divided into a plurality of sub-areas according to the previously preset rules, and the drilling data of the sub-areas are obtained to form a new corresponding data set E. And still setting sampling points on each drill hole, and collecting geological layer data on the drill holes from top to bottom according to an interface, wherein the geological layer data comprises geological layer boundary data and geological layer type data.
In each sub-region there is a corresponding set of data E (with different data than data D) and the data E includes borehole data (including geological formation boundary data and geological formation type data) for a plurality of boreholes in the set. For each sub-region. And processing the drilling data corresponding to the plurality of drilling holes in the data group E respectively to obtain the correlation degrees of the drilling data, and obtaining the correlation factor based on the plurality of correlation degrees.
At this time, the new correlation degree and the new correlation factor can be compared with the previous correlation degree and the previous correlation factor, and the sub-region model needing to be updated is determined most according to the comparison result, so that the automatic updating of the three-dimensional geological structure model is finally realized.
Specifically, the new correlation corresponding to the successively same drill holes is compared with the previous correlation, and when the deviation between the two is greater than a preset threshold value, the data is considered to be changed greatly and needs to be updated; and determining whether the correlation degree range is met or not according to the new correlation degree between the drill holes corresponding to the new drill hole and the drill holes adjacent to the new drill hole, wherein the correlation degree is determined according to the deviation of each data from the standard value in the group of data set at this time, and the correlation degree between the drill hole data is determined according to the deviation degree, and if the correlation degree range is exceeded, the data is considered to have large change and needs to be updated. At the moment, according to the judgment of the change situation of the geological structure of the subregion, the updating of the geological model of the independent subregion can be carried out, so that the efficiency can be improved.
In addition to the updates in the sub-regions, the entire region needs to be analyzed to determine whether a partial or entire update of the entire modeled region is needed based on the analysis. Specifically, for each sub-region, a new correlation factor is correspondingly obtained, so that the new correlation factor can be compared with the correlation factor of the previous corresponding sub-region to determine whether the deviation between the new correlation factor and the previous corresponding sub-region is greater than a preset threshold, and if the deviation between only two sub-regions and less than the two sub-regions is greater than the preset threshold, the geological model of the sub-region is only correspondingly updated; if the deviation of the sub-regions which is more than two and less than or equal to five is more than a preset threshold value, connecting the boundaries of the sub-regions together to form an updated region (the region comprises other sub-regions accommodated in the range), and at the moment, correspondingly updating the geological model of the updated region; and if the deviation of the sub-regions larger than five is larger than a preset threshold value, completely updating the whole modeling region.
And adjusting the three-dimensional geological structure modeling model according to the updated three-dimensional geological structure model, and performing matching correction on the parameters of the three-dimensional geological structure model by using exogenous data. And finally, performing data fusion on the modeling result based on the GIS platform to obtain a fused modeling model.
Example two
In one or more embodiments, a GIS platform based three-dimensional geological structure model automatic updating system is disclosed, comprising:
means for dividing a modeling region of the three-dimensional geological structure model into a number of sub-regions;
means for acquiring a plurality of borehole data in each sub-region, determining a correlation and correlation factor between said plurality of borehole data;
means for obtaining updated parameters of the three-dimensional geological structure model, reacquiring the plurality of borehole data in each sub-region, and determining new correlations and correlation factors between the plurality of borehole data;
and the device is used for comparing the new correlation degree and the correlation factor in each sub-region with the correlation degree and the correlation factor before updating respectively, determining the sub-region needing parameter updating and realizing the updating of the three-dimensional geological structure model.
EXAMPLE III
In one or more embodiments, a terminal device is disclosed, which includes a server, where the server includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to implement the method for automatically updating a three-dimensional geological structure model based on a GIS platform in the first embodiment. For brevity, no further description is provided herein.
It should be understood that in this embodiment, the processor may be a central processing unit CPU, and the processor may also be other general purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate arrays FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and so on. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory may include both read-only memory and random access memory, and may provide instructions and data to the processor, and a portion of the memory may also include non-volatile random access memory. For example, the memory may also store device type information.
In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software.
The three-dimensional geological structure model automatic updating method based on the GIS platform in the first embodiment can be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. A three-dimensional geological structure model automatic updating method based on a GIS platform is characterized by comprising the following steps:
dividing a modeling area of the three-dimensional geological structure model into a plurality of sub-areas;
acquiring a plurality of drilling data in each sub-area, and determining the correlation and correlation factors among the plurality of drilling data;
obtaining updated parameters of the three-dimensional geological structure model, re-obtaining a plurality of drilling data in each sub-area, and determining new correlation and correlation factors among the plurality of drilling data;
and comparing the new correlation degree and the correlation factor in each sub-region with the correlation degree and the correlation factor before updating respectively, determining the sub-region needing parameter updating, and updating the three-dimensional geological structure model.
2. The method for automatically updating the three-dimensional geological structure model based on the GIS platform according to claim 1, further comprising:
according to the updated three-dimensional geological structure model, matching and correcting parameters of the three-dimensional geological structure model by utilizing exogenous data;
and based on the GIS platform, performing data fusion on the modeling result to obtain a fused modeling model.
3. The method for automatically updating the three-dimensional geological structure model based on the GIS platform according to claim 1, wherein the parameters of the three-dimensional geological structure model are obtained, and modeling is performed according to the obtained parameters of the three-dimensional geological structure model, specifically:
a group of drilling holes is made in the ith sub-area, drilling hole data of the group are obtained, and a corresponding data group D is formedi；
Data set DiAnd processing the drilling data corresponding to the plurality of drilling holes respectively, and obtaining the correlation degrees of the drilling data to obtain the correlation factors based on the plurality of correlation degrees.
4. The GIS platform-based method for automatically updating the three-dimensional geological structure model according to claim 3, wherein the correlation of the borehole data is determined according to the deviation of each data from the standard value in the data set; the acquisition of the correlation factor is determined based on the degree of the update threshold between the plurality of correlations that is set apart from the entire modeling area.
5. The GIS platform based three-dimensional geological structure model automatic updating method of claim 1,
comparing the new correlation degree in each sub-region with the correlation degree before updating, and updating the sub-region modeling model when the deviation between the new correlation degree and the correlation degree before updating is greater than a preset threshold value;
and acquiring new correlation between the drill holes adjacent to the new drill holes according to the new drill holes, determining whether the correlation satisfies the correlation range, and if the correlation exceeds the range, updating the sub-region modeling model.
6. The GIS platform-based automatic updating method for the three-dimensional geological structure model according to claim 1, characterized in that the new correlation factor in each sub-area is compared with the correlation factor before updating, and whether the deviation between the two is larger than a preset threshold value is determined:
if the deviation of only A sub-regions and less than A sub-regions is larger than a preset threshold value, only updating the geological model of the corresponding sub-regions;
if the deviation of the sub-regions which are more than A and less than or equal to B is more than a preset threshold value, connecting the boundaries of the sub-regions together to form an updated region, and updating the geological model of the updated region;
if the deviation of the sub-regions larger than B is larger than a preset threshold value, completely updating the whole modeling region;
a, B are all set integer values.
7. The method for automatically updating the three-dimensional geological structure model based on the GIS platform according to claim 1, wherein geological layer data on the borehole, including geological layer boundary data and geological layer type data, is collected from top to bottom according to an interface.
8. A three-dimensional geological structure model automatic updating system based on a GIS platform is characterized by comprising:
means for dividing a modeling region of the three-dimensional geological structure model into a number of sub-regions;
means for acquiring a plurality of borehole data in each sub-region, determining a correlation and correlation factor between said plurality of borehole data;
means for obtaining updated parameters of the three-dimensional geological structure model, reacquiring the plurality of borehole data in each sub-region, and determining new correlations and correlation factors between the plurality of borehole data;
and the device is used for comparing the new correlation degree and the correlation factor in each sub-region with the correlation degree and the correlation factor before updating respectively, determining the sub-region needing parameter updating and realizing the updating of the three-dimensional geological structure model.
9. A terminal device comprising a processor and a computer-readable storage medium, the processor being configured to implement instructions; the computer-readable storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the method for automatically updating a three-dimensional geological structure model based on a GIS platform according to any of claims 1-7.
10. A computer-readable storage medium having stored thereon a plurality of instructions, wherein the instructions are adapted to be loaded by a processor of a terminal device and to perform the method for automatically updating a three-dimensional geological structure model based on a GIS platform according to any of claims 1-7.
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