CN114880849A - Automatic three-dimensional geological model merging method for block modeling - Google Patents
Automatic three-dimensional geological model merging method for block modeling Download PDFInfo
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Abstract
A three-dimensional geological model automatic merging method for block modeling comprises the following steps: modeling all models in blocks according to a preset rule; smoothing the splicing positions of the models; combining the models, converting the models into structural models and completing the fusion of the models; and visually displaying the fused model. The problems that the model in the prior art is lack of integrity, splicing traces of a modeling unit are obvious, and the smoothness of the model is poor are solved.
Description
Technical Field
The invention relates to the field of three-dimensional geological models, in particular to an automatic three-dimensional geological model merging method for block modeling.
Background
The MapGIS is general tool type geographic information system software developed by digital science and technology limited company in Wuhan, which is developed on the basis of MAPCAD of a map editing and publishing system enjoying high reputation and can acquire, store, retrieve, analyze and graphically represent spatial data. MAPTIGIS includes all basic mapping functions of MAPCAD, and can make very complex topographic map and geological map with publishing accuracy. Meanwhile, the system can carry out integrated management and spatial analysis query on topographic data and various professional data, thereby providing an ideal platform for comprehensive analysis of multi-source geoscience information.
The specific implementation form of the interaction modeling of the MapGIS complex geologic body is generally that a complex model is divided by a partition-splicing modeling mode and a division and treatment method, so that the complex model is convenient to observe and operate, and the construction of the complex model with large data volume is convenient to complete by division and cooperation.
The simplest and most direct modeling unit division method is to divide the modeling units by taking a section as a boundary. In this way, no interface is specially constructed, and the section can be directly divided into a plurality of modeling units after being drawn. However, this approach also has significant disadvantages: the model lacks the wholeness, and the concatenation vestige of modeling unit is more obvious, and the model smoothness is relatively poor.
Disclosure of Invention
In view of the above, the present invention has been developed to provide an automatic merging method of three-dimensional geological models of block modeling that overcomes or at least partially solves the above-mentioned problems.
In order to solve the technical problem, the embodiment of the application discloses the following technical scheme:
a three-dimensional geological model automatic merging method for block modeling comprises the following steps:
s100, modeling all models in blocks according to a preset rule;
s200, smoothing the splicing positions of the models;
s300, combining the models, converting the models into structural models, and completing the fusion of the models;
and S400, visually displaying the fused model.
Further, comprising: in S100, the method for performing blocking modeling on all models includes: the method comprises a cross section cell dividing mode, a parallel section cell dividing mode, a dividing mode taking a fault plane as a boundary and a dividing mode of manually constructing an interface.
Further, the method for performing block modeling in a cross section grid cell division mode comprises the following steps: the method comprises the steps of utilizing a plurality of cross sections in a modeling area to divide a space into a plurality of cells, utilizing a series of closed contour lines in a single cell to establish a curved surface sheet, further determining the space geometric forms of all geological bodies in the cell to form a geological block of a single cell, and combining the geological blocks of each cell to form a complete geological body model.
Further, the method for performing block modeling in a cross-section cell division mode further comprises the following steps: when the cells in the modeling area are non-intersecting sections or cells which cannot be naturally closed at the boundary, the cells can be closed by manually adding auxiliary lines, and then modeling is performed in the same way as the closed cells.
Further, the method for performing block modeling in a parallel section grid-dividing cell mode comprises the following steps: the method comprises the steps of utilizing a plurality of parallel sections in a modeling area to divide a space into a plurality of cells, utilizing a series of closed contour lines in a single cell to establish a curved surface sheet, further determining the space geometric forms of all geological bodies in the cell to form a geological block with single cell, and combining the geological blocks of each cell to form a complete geological body model.
Further, the method for block modeling in a partition mode with the fault plane as a boundary comprises the following steps: and importing the model section into a three-dimensional scene, constructing a fault auxiliary line, dividing a modeling fault block by taking the fault as a boundary, constructing a stratum auxiliary line and a bottom layer, and splicing the constructed stratum layer and the fault layer into a body.
Further, the method for modeling blocks by partitioning in a partition mode of a manual construction interface comprises the following steps: after the model section is led into three dimensions, a modeling interface is drawn in a three-dimensional scene in an interactive modeling mode according to the distribution of fault structure lines, so that the morphological difference of geological surfaces on two sides of the interface is reduced, the section is cut by the interface, and a modeling unit is divided.
Further, the models are combined by using a method for automatically combining the geologic bodies according to the stratum attributes, and the method for automatically combining the geologic bodies according to the attributes comprises the following steps: when the models to be merged are adjacent geologic bodies with common planes and stratum attributes are the same, if the common planes are vertical planes, merging body operation is executed; if the common plane is not a vertical plane, the common plane is treated as a fault plane and is not merged.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the invention discloses an automatic three-dimensional geological model merging method for block modeling, which comprises the following steps: modeling all models in blocks according to a preset rule; smoothing the splicing positions of the models; combining the models, converting the models into structural models and completing the fusion of the models; and visually displaying the fused model. The problems that the model in the prior art is lack of integrity, splicing traces of a modeling unit are obvious, and the smoothness of the model is poor are solved.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a flowchart of an automatic merging method for three-dimensional geological models based on block modeling according to embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of a method for block modeling by a cross-section grid-dividing manner in embodiment 1 of the present invention;
fig. 3 is a schematic diagram of a method for performing block modeling in a partition mode with a fault plane as a boundary in embodiment 2 of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve the problems in the prior art, the embodiment of the invention provides an automatic three-dimensional geological model merging method for block modeling.
Example 1
The embodiment discloses an automatic merging method of three-dimensional geological models for block modeling, which comprises the following steps:
s100, modeling all models in blocks according to a preset rule; in this embodiment S100, the method for performing blocking modeling on all models includes: the method comprises a cross section cell dividing mode, a parallel section cell dividing mode, a dividing mode taking a fault plane as a boundary and a dividing mode of manually constructing an interface.
Specifically, as shown in fig. 2, the method for performing block modeling in a cross-section cell division manner includes: the method comprises the steps of utilizing a plurality of cross sections in a modeling area to divide a space into a plurality of cells, utilizing a series of closed contour lines in a single cell to establish a curved surface sheet, further determining the space geometric forms of all geological bodies in the cell to form a geological block of a single cell, and combining the geological blocks of each cell to form a complete geological body model. The method for modeling by blocks in a cross section grid dividing mode further comprises the following steps: when the cells in the modeling area are non-intersecting sections or cells which cannot be naturally closed at the boundary, the cells can be closed by manually adding auxiliary lines, and then modeling is performed in the same way as the closed cells.
In this embodiment, the method for performing block modeling in a parallel section grid-dividing cell manner includes: the space is divided into a plurality of cells by utilizing a plurality of parallel sections in the modeling area, a curved surface sheet is established by utilizing a series of closed contour lines in a single cell, the space geometric forms of all geological bodies in the cell are further determined, a geological block with single cell is formed, and the geological blocks of each cell are combined to form a complete geological body model.
In this embodiment, the method for performing blocking modeling in a partition manner of a manual construction interface includes: after the model section is led into three dimensions, a modeling interface is drawn in a three-dimensional scene in an interactive modeling mode according to the distribution of fault construction lines, so that the morphological difference of geological surfaces on two sides of the interface is reduced (the modeling interface is selected at the position where no fault exists and the stratum fluctuation is relatively smooth as far as possible), the section is cut by the interface, and a modeling unit is divided.
In this embodiment, the method for performing block modeling in a partition mode with a fault plane as a boundary includes: and importing the model section into a three-dimensional scene, constructing a fault auxiliary line, dividing a modeling fault block by taking the fault as a boundary, constructing a stratum auxiliary line and a bottom layer, and splicing the constructed stratum layer and the fault layer into a body.
S200, smoothing the splicing positions of the models; and at the splicing positions of different models, a smoothing algorithm is used to smooth the stratum transition, so that the problem of stratum transition at the splicing positions is solved.
S300, combining the models, converting the models into structural models, and completing the fusion of the models; in this embodiment, the models are merged by using a method of automatically merging geologic bodies according to the attributes of the stratum, and the method of automatically merging geologic bodies according to the attributes includes: when the models to be merged are adjacent geologic bodies with common planes and stratum attributes are the same, if the common planes are vertical planes, merging body operation is executed; if the common plane is not a vertical plane, the common plane is treated as a fault plane and is not merged.
Specifically, after the regional and unit modeling, the model combination is completed by adopting the technology of automatically combining geologic bodies according to stratum attributes. The principle of automatically combining geologic bodies according to attributes is as follows: and if the common and coplanar adjacent bodies exist and the stratum properties are the same, automatically deleting the common and coplanar adjacent bodies and combining the two adjacent bodies into an individual.
The condition for judging the common plane is that one surface of two adjacent geologic bodies is completely identical, namely all triangular surfaces forming the surface are also completely identical.
The automatic combination body technology has an obvious short board, namely, fault plane models are not distinguished in the combination process, and the fault planes can be automatically combined, so that the geological bodies on two sides of the fault are combined into one geological body, and fault information is lost in the models.
The improved method is that after one common plane is found, one step of judgment is added, and if the common plane is a vertical plane, the merging body operation is executed. If the common plane is not a vertical plane, the common plane is treated as a fault plane and is not merged. This way fault information can be preserved on the model.
And S400, visually displaying the fused model.
The method for automatically combining the three-dimensional geological models for block modeling disclosed by the embodiment comprises the following steps: modeling all models in blocks according to a preset rule; smoothing the splicing positions of the models; combining the models, converting the models into structural models and completing the fusion of the models; and visually displaying the fused model. The problems that the model in the prior art is lack of integrity, splicing traces of a modeling unit are obvious, and the smoothness of the model is poor are solved.
It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an ASIC. The ASIC may reside in a user terminal. Of course, the processor and the storage medium may reside as discrete components in a user terminal.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in memory units and executed by processors. The memory unit may be implemented within the processor or external to the processor, in which case it can be communicatively coupled to the processor via various means as is known in the art.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
Claims (8)
1. A three-dimensional geological model automatic merging method for block modeling is characterized by comprising the following steps:
s100, modeling all models in blocks according to a preset rule;
s200, smoothing the splicing positions of the models;
s300, combining the models, converting the models into structural models, and completing the fusion of the models;
and S400, visually displaying the fused model.
2. The method of claim 1, wherein the method of automatically merging three-dimensional geological models based on block modeling comprises: in S100, the method for performing blocking modeling on all models includes: the method comprises a cross section cell dividing mode, a parallel section cell dividing mode, a dividing mode taking a fault plane as a boundary and a dividing mode of manually constructing an interface.
3. The method for automatically merging the three-dimensional geological models based on block modeling as claimed in claim 1, wherein the method for performing block modeling in a cross-section grid-divided manner comprises: the method comprises the steps of utilizing a plurality of cross sections in a modeling area to divide a space into a plurality of cells, utilizing a series of closed contour lines in a single cell to establish a curved surface sheet, further determining the space geometric forms of all geological bodies in the cell to form a geological block of a single cell, and combining the geological blocks of each cell to form a complete geological body model.
4. The method of claim 3, wherein the method for performing block modeling in a cross-section grid-divided manner further comprises: when the cells in the modeling area are non-intersecting sections or cells which cannot be naturally closed at the boundary, the cells can be closed by manually adding auxiliary lines, and then modeling is performed in the same way as the closed cells.
5. The method for automatically merging the three-dimensional geological models based on block modeling as claimed in claim 3, wherein the method for block modeling in a parallel section grid-divided manner comprises: the method comprises the steps of utilizing a plurality of parallel sections in a modeling area to divide a space into a plurality of cells, utilizing a series of closed contour lines in a single cell to establish a curved surface sheet, further determining the space geometric forms of all geological bodies in the cell to form a geological block with single cell, and combining the geological blocks of each cell to form a complete geological body model.
6. The method for automatically merging the three-dimensional geological models based on the block modeling as claimed in claim 3, wherein the method for performing the block modeling by the dividing mode with the fault plane as the boundary comprises the following steps: and importing the model section into a three-dimensional scene, constructing a fault auxiliary line, dividing a modeling fault block by taking the fault as a boundary, constructing a stratum auxiliary line and a bottom layer, and splicing the constructed stratum layer and the fault layer into a body.
7. The method for automatically merging the three-dimensional geological models through the block modeling according to claim 3, wherein the method for performing the block modeling through the partition mode of the manually constructed interface comprises the following steps: after the model section is led into three dimensions, a modeling interface is drawn in a three-dimensional scene in an interactive modeling mode according to the distribution of fault structure lines, so that the morphological difference of geological surfaces on two sides of the interface is reduced, the section is cut by the interface, and a modeling unit is divided.
8. The method of claim 1, wherein the models are combined by automatically combining geologic volumes according to stratigraphic attributes, the method of automatically combining geologic volumes according to attributes comprising: when the models to be merged are adjacent geologic bodies with common planes and stratum attributes are the same, if the common planes are vertical planes, merging body operation is executed; if the common plane is not a vertical plane, the common plane is treated as a fault plane and is not merged.
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| CN116645484A (en) * | 2023-07-26 | 2023-08-25 | 航天宏图信息技术股份有限公司 | Geological curved surface model construction method and device, electronic equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116645484A (en) * | 2023-07-26 | 2023-08-25 | 航天宏图信息技术股份有限公司 | Geological curved surface model construction method and device, electronic equipment and storage medium |
| CN116645484B (en) * | 2023-07-26 | 2023-10-03 | 航天宏图信息技术股份有限公司 | Geological curved surface model construction method and device, electronic equipment and storage medium |
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