CN115690349A - Three-dimensional river channel model construction method and system for seismic simulation and storage medium - Google Patents
Three-dimensional river channel model construction method and system for seismic simulation and storage medium Download PDFInfo
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Abstract
The invention relates to a method, a system and a storage medium for constructing a three-dimensional river channel model for seismic simulation, wherein the method comprises the following steps: setting the length, the width and the height of the three-dimensional river channel model, and setting a displayed plane range according to the length, the width and the height; setting the number of layer interfaces contained in the three-dimensional river channel model, and adjusting and controlling all the interface layers in a plane range; setting a river channel name, acquiring a central control point plane distribution diagram, and obtaining a primary river channel connection diagram and a secondary river channel connection diagram based on the central control point plane distribution diagram to generate a river channel depth plane diagram; and selecting the interface layer and the river course to obtain a three-dimensional display image of the interface layer and the river course. The method can establish any diversified three-dimensional river channels, provides various three-dimensional river channel big data for the intelligent river channel identification method, and is beneficial to improving the adaptability of the intelligent river channel identification method. The invention can be applied in the field of reservoir geophysical.
Description
Technical Field
The invention relates to the technical field of reservoir geophysical, in particular to a three-dimensional river channel model construction method and system for seismic simulation and a storage medium.
Background
The riverway sedimentary reservoir is a main oil-gas polymer place at home and abroad, most riverway related oil-gas reservoirs with obvious seismic characteristic expression are basically discovered at present, the rest are oil-gas reservoirs which are not obvious in seismic characteristic expression and are not easy to discover, the discovery difficulty of the oil-gas reservoirs is higher and higher, and in order to reduce exploration risks, the seismic characteristics of the riverway oil-gas reservoirs with different conditions need to be researched to form a certain specific seismic interpretation technology and promote discovery of the riverway related oil-gas reservoirs. To know the expression characteristics of the riverway oil and gas reservoirs under different conditions, a riverway modeling construction method needs to be formed, a diversified riverway model can be built, and basic data are provided for the research of the expression characteristics of the riverway oil and gas reservoirs under different conditions. The river channel model construction method comprises two-dimensional river channel model construction and three-dimensional river channel model construction at present.
Aiming at the construction of a two-dimensional river channel model, the method mainly relates to the construction of river channel models along the ancient river channel direction and the direction perpendicular to the river channel direction, and different mathematical methods are used for fitting a river channel interface, such as a unitary three-point unconformity interpolation method, a least square curve fitting method, a smooth unequal distance interpolation method and the like. For the construction of a three-dimensional river channel model, at present, a two-dimensional curved surface is mainly constructed based on known data, and then a three-dimensional river channel is formed on the basis of the construction of a two-dimensional curve, for example, a river channel terrain model construction method disclosed in the existing literature is constructed based on known river channel boundary data and key section data; the existing literature river facies three-dimensional sedimentary facies model deterministic modeling method is based on actual digital sedimentary facies diagrams to obtain the relevant boundary data of river facies to realize river channel construction; the existing literature is a river channel three-dimensional modeling method based on multi-attribute supermixel graph cut, which is an improvement on the problem of insufficient river channel delineation by single seismic attribute, and provides a multi-attribute fusion method based on improved local linear embedding, so that the three-dimensional river channel modeling effect is improved.
Compared with forward simulation research of a two-dimensional river channel model, forward simulation research of a three-dimensional river channel model is more beneficial to research of earthquake characteristics of the river channel, and a river channel identification method can be better established on the basis of understanding of the earthquake characteristics. However, the existing three-dimensional river channel model construction method mainly controls the construction of a river channel model by river channel boundary data determined by known data of one region, the model formed by the method is mechanical and has no diversity, and the intelligent river channel identification method formed on the basis is difficult to have great popularization value in other regions.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a method, a system, and a storage medium for constructing a three-dimensional river model for seismic simulation, which can establish an arbitrarily diversified three-dimensional river, provide various three-dimensional river big data for an intelligent river identification method, and facilitate improvement of the adaptability of the intelligent river identification method.
In order to achieve the purpose, the invention adopts the following technical scheme: a three-dimensional river channel model construction method for seismic simulation comprises the following steps: setting the length, the width and the height of the three-dimensional river channel model, and setting a displayed plane range according to the length, the width and the height; setting the number of layer interfaces contained in the three-dimensional river channel model, and adjusting and controlling all the interface layers in a plane range; setting a river channel name, acquiring a central control point plane distribution diagram, and acquiring a primary and secondary river channel connection diagram based on the central control point plane distribution diagram to generate a river channel depth plane diagram; and selecting the interface layer and the river course to obtain a three-dimensional display image of the interface layer and the river course.
Further, the setting of the display plane range according to the length, the width and the height comprises:
setting the control point to generate the plane range of the display, assuming the plane is P 1 ；
Setting a plane range for controlling the depth display of a point, assuming the plane as P 2 ；
Setting a plane range after interpolation for the display layer and the river channel, and assuming that the plane is P 3 。
P for setting stereoscopic display plane for layer and river course 0 To indicate.
Further, the adjusting and controlling operation of all interface layers in the plane range includes:
setting control points for a layer interface with the sequence number i, and controlling in an equidistant mode in the x direction and the y direction;
adjusting the depth of a control point of a layer interface with the sequence number i;
generating layer interface data by utilizing a linear interpolation algorithm for the layer interface control point with the serial number i, and displaying the calculation result on a plane P 3 In (1).
Further, the x direction and the y direction are controlled in an equidistant mode, and the method comprises the following steps: assume that the number of control points in the x and y directions are
Based on the preset control rule, then in the plane P 1 Generating a control point distribution map.
Further, the adjusting the depth of the control point of the layer interface with the sequence number i includes:
in plane P 2 On the graph, each time a control point with the same y-coordinate is displayed, then human-machine interaction is utilized for the depth thereofAnd modifying the mode, and sequentially modifying the depths of the control points of other y coordinates until all the control points are completely modified.
Further, the setting of the name of the river channel and the obtaining of the plane distribution map of the central control point comprise:
supposing that the name of the River channel is River, selecting a control layer position where the River channel is located and setting the stage number of the River channel, wherein the stage number is assumed to be m;
the branch river channels of 1, m are respectively arranged on a plane P 1 And generating a plane distribution diagram of the central control points of the primary and secondary riverways.
Further, the generating a river depth plane map includes:
connecting the central control points of the primary and secondary river channels to obtain a primary and secondary river channel connection diagram;
modifying the depth of the primary and secondary river channels on the primary and secondary river channel connection diagram, selecting the name of the primary and secondary river channels, and arranging the river channels on the plane P 2 The depth of a river channel control point is modified in the graph;
setting the width range of each control point, obtaining the river channel boundary based on the river channel central control point and the width of the control point, and obtaining the width of the river channel boundary on a plane P 3 And generating a river channel depth plane graph.
A three-dimensional river model construction system for seismic simulation, comprising: the first processing module is used for setting the length, the width and the height of the three-dimensional river channel model and setting a displayed plane range according to the length, the width and the height; the second processing module is used for setting the number of layer interfaces contained in the three-dimensional river channel model and adjusting and controlling all the interface layers in a plane range; the third processing module is used for setting the name of the river channel, acquiring a central control point plane distribution map, and obtaining a primary river channel connection map and a secondary river channel connection map based on the central control point plane distribution map so as to generate a river channel depth plane map; and the three-dimensional display module selects the interface layer and the river channel to obtain a three-dimensional display image of the interface layer and the river channel.
A computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computing device, cause the computing device to perform any of the above methods.
A computing device, comprising: one or more processors, memory, and one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for performing any of the above-described methods.
Due to the adoption of the technical scheme, the invention has the following advantages:
1. the invention realizes the construction of the three-dimensional river channel model by adopting a human-computer interaction method, can establish any diversified three-dimensional river channels, provides various three-dimensional river channel big data for the intelligent river channel identification method, and is beneficial to improving the adaptability of the intelligent river channel identification method.
2. The method can quickly establish the three-dimensional river channel model based on human-computer interaction combination, avoids the problem that other methods can establish the three-dimensional river channel model only by other interpretation data, is quick and convenient, and can provide rich three-dimensional river channel geological models for the formation of an intelligent river channel interpretation technology.
3. The method adopts a grading idea to construct the primary and secondary riverways, and can better distinguish the primary and secondary riverways clearly.
Drawings
FIG. 1 is a flow chart of a method for constructing a three-dimensional river model for seismic simulation according to an embodiment of the present invention;
FIG. 2 is a diagram illustrating a distribution of interface control points on a layer of the P1 plane according to an embodiment of the present invention;
FIG. 3 is a distribution diagram of depth control points in a layer of the P2 plane before adjustment according to an embodiment of the present invention;
FIG. 4 is a distribution diagram of a layer of depth control points on the P2 plane after adjustment according to an embodiment of the present invention;
FIG. 5 is a flat display of a layer of interpolated interfaces on the P3 plane in accordance with an embodiment of the present invention;
FIG. 6 is a distribution diagram of control points at each level of river channel name Rive on the P1 plane according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a P1 plane with control points for River name River connected;
FIG. 8 is a diagram illustrating the adjustment of the depth of the River main River on P2 according to an embodiment of the present invention;
FIG. 9 is a representation of a river channel after interpolation according to an embodiment of the present invention;
fig. 10 is a three-dimensional display of a three-dimensional river model according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It should be apparent that the described embodiments are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be derived by a person skilled in the art from the description of the embodiments of the invention given above, are within the scope of protection of the invention.
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.
The invention relates to a three-dimensional river channel model construction method for seismic simulation, which is used for generating any river channel model, makes up the singleness of the existing three-dimensional river channel model construction method in the aspect of model construction, provides rich river channel characteristic models for an intelligent river channel identification technology, and belongs to the key field of reservoir geophysical.
The invention is mainly used for identifying the ancient river channel, and other strata are usually arranged on the ancient river channel, and the strata and the area of the river channel form a stratum interface, so the invention relates to the construction of the river channel and the stratum interface. For the construction of the stratum interface, the construction of the stratum interface is mainly realized on the basis of control points, and the control points with regular distribution are generated in the area where a set river channel is located according to a certain rule; then, modifying the depth of the control points according to a certain rule, and finally, interpolating by adopting a linear algorithm to obtain layer interface data with control river channel distribution; for the construction of the river channel, a multi-stage mode is adopted to generate a branch river channel center control point, the depth of the control point is modified according to the selected branch river channel, then the width of the river channel at the control point is set, a river channel control boundary is generated based on the width of the river channel at the control point, and finally a river channel model is generated by utilizing a cubic spline interpolation algorithm, a linear interpolation algorithm and the like.
The model constructed by the method can be used for constructing any geological model according to the knowledge of a geologist or a geophysicist without being based on the explanation data, so that the geological model with diversity required by the research of the geologist or the geophysicist can be easily generated, and abundant model data can be provided for the subsequent research; the primary and secondary riverways are constructed by adopting a grading idea, so that the primary and secondary riverways can be better distinguished and clearer; the generated model is convenient, simple and practical.
In one embodiment of the invention, a three-dimensional river channel model construction method, a three-dimensional river channel model construction system and a storage medium for seismic simulation are provided. In this embodiment, as shown in fig. 1, the method includes the following steps:
1) Setting the length, the width and the height of the three-dimensional river channel model, and setting a displayed plane range according to the length, the width and the height;
2) Setting the number of layer interfaces contained in the three-dimensional river channel model, and adjusting and controlling all the interface layers in a plane range;
3) Setting a river channel name, acquiring a central control point plane distribution diagram, and acquiring a primary and secondary river channel connection diagram based on the central control point plane distribution diagram to generate a river channel depth plane diagram;
4) And selecting the interface layer and the river course to obtain a three-dimensional display image of the interface layer and the river course.
In the step 1), the length, width and height of the three-dimensional river channel model are represented by Lx, ly and Lz.
In the step 1), the method for setting the display plane range according to the length, the width and the height comprises the following steps:
1.1 Set the control point to generate the displayed plane range, assuming the plane is P 1 (ii) a Wherein, P 1 The length and width of (1) are represented by Lx and Ly.
1.2 Set a plane range for controlling the point depth display, assuming that the plane is P 2 (ii) a Wherein, P 2 The length and width ranges of (1) are represented by Lx and Lz.
1.3 Set a range of planes for the interpolated display layer and river, assuming that the plane is P 3 (ii) a Wherein, P 3 The length and width ranges of (2) are represented by Lx and Ly.
1.4 P for setting stereoscopic display planes for floors and river channels 0 To indicate. In the step 2), all interface layers are adjusted and controlled in a plane range, and if the number of layer interfaces included in the three-dimensional river channel model is n, the adjustment and control operation includes the following steps:
2.1 Setting control points on the layer interface with the serial number i, and controlling in an equidistant mode in the x direction and the y direction;
2.2 Adjusting the depth of a control point of a layer interface with the sequence number i;
2.3 Using linear interpolation algorithm to generate layer interface data for layer interface control point with serial number i, and displaying the calculation result on plane P 3 In (1).
And (4) circulating the steps 2.1) to 2.3) for each layer of interface until all layer interface operations are finished.
In the step 2.1), the x direction and the y direction are controlled in an equidistant manner, and the method includes the following steps: assume that the number of control points in the x and y directions is
Based on the preset control rule, then in the plane P 1 To generate a control point profile.
In the step 2.2), adjusting the depth of the control point of the layer interface with the sequence number i includes:
in the plane P 2 On the graph, the control points with the same y coordinate are displayed each time, then the depths of the control points are modified in a man-machine interaction mode, and the depths of the control points with other y coordinates are modified in sequence until all the control points are completely modified.
In the step 3), the river channel name is set, and the central control point plane distribution map is obtained, which includes the following steps:
3.1.1 Suppose the name of the River channel is River, and select the control position where the River channel is located and set the stage number of the River channel, and suppose the stage number is m;
3.1.2 A 1, a, m branch river course is set up separately, in a plane P 1 And generating a plane distribution diagram of the central control points of the primary and secondary riverways.
In the step 3), generating a river depth plane map, which comprises the following steps:
3.2.1 Connecting the central control points of the primary and secondary riverways to obtain a primary and secondary riverway connection diagram;
3.2.2 ) modifying the depth of the primary and secondary channels on the primary and secondary channel connection map, selecting the name of the primary and secondary channels, and placing the modified primary and secondary channels on the plane P 2 The depth of a river channel control point is modified in the graph;
3.2.3 Setting width range of each control point, obtaining river channel boundary based on river channel central control point and control point width, and arranging the river channel boundary in a plane P 3 And generating a river channel depth plane graph.
In the above step 4), in P 0 Layers and channels are selected and fig. 10 is a three-dimensional display of the layers and channels obtained.
Example (b): the specific implementation of the present invention is further described with reference to fig. 1 to 8.
(1) The length, the width and the height of the three-dimensional river channel model are set, and Lx, ly and Lz are respectively set to be 500m, 200m and 200m.
(2) Setting the plane P of control point generation display 1 The ranges Lx and Ly are 500m and 200m, respectively.
(3) Setting a plane P for controlling a point depth display 2 The ranges Lx and Lz are 500m and 200m, respectively.
(4) Setting a plane P for the interpolated display layer and river 3 The ranges Lx and Ly are 500m and 200m, respectively.
(5) And setting the number of the included layer interfaces of the three-dimensional river channel model to be 2.
(6) Setting control points on the layer interface 1, controlling in an equal-spacing mode in the x direction and the y direction, and assuming that the x and the y are equalThe number of control points in the y direction is 5 and 5 respectively, and based on the set control rule, the control point is in P 1 A distribution map of the control points is generated on the plane as shown in fig. 2.
(7) The control point depth of the layer interface 1 is adjusted. The depth adjustment of the control points at positions where y is equal to 50m, 100m and 150m is selected, and the figures 3 and 4 show the depth adjustment of the control points at positions where y is equal to 50 m.
(8) Generating layer interface data by using a linear interpolation algorithm on the control points of the layer interface 1, and enabling the calculation result to be P 3 In the plane, as shown in fig. 5.
(9) And (5) repeating the steps (6) to (8) on the layer interface 2 to obtain an interpolated plan view of the layer interface 2.
(10) And setting the name of the River channel, assuming to be River, selecting a layer interface 1 and a layer interface 2 as control layers, and setting the stage number of the River channel, wherein the stage number is assumed to be 2.
(11) The branch river channels of 1 and 2 are respectively arranged at P 1 In the method, a plane distribution diagram of the central control points of the primary and secondary riverways is generated, the largest circle in fig. 6 represents the central control point of the riverway of level 1, and the small circles on both sides of the largest circle represent the central control points of the riverway of level 2 obtained based on the riverway control points of level 1.
(12) The main and secondary river channel connection diagrams (as shown in fig. 7) can be obtained by connecting the central control points of the main and secondary river channels, and each diagram comprises a main river channel and 2 branch river channels.
(13) Modifying the depth of the primary and secondary river channels, and selecting the names of the primary and secondary river channels at P 2 The river channel control point depth can be modified, and fig. 8 shows a river channel depth modification schematic diagram.
(14) Setting the width range of each control point, obtaining the river channel boundary based on the river channel center control point and the width of the control point, and performing cubic spline interpolation algorithm, linear interpolation algorithm and the like on the basis of P 3 Generating a river channel display plan, and fig. 9 is a generated plan display diagram after river channel interpolation.
(15) At P 0 And selecting the layer and the river course to obtain a three-dimensional display image of the layer and the river course.
In one embodiment of the present invention, there is provided a three-dimensional river model construction system for seismic simulation, including:
the first processing module is used for setting the length, the width and the height of the three-dimensional river channel model and setting a displayed plane range according to the length, the width and the height;
the second processing module is used for setting the number of layer interfaces contained in the three-dimensional river channel model and adjusting and controlling all the interface layers in a plane range;
the third processing module is used for setting the name of the river channel, acquiring a central control point plane distribution map, and acquiring a primary river channel connection map and a secondary river channel connection map based on the central control point plane distribution map so as to generate a river channel depth plane map;
and the three-dimensional display module selects the interface layer and the river channel to obtain a three-dimensional display image of the interface layer and the river channel.
The system provided in this embodiment is used for executing the above method embodiments, and for specific flows and details, reference is made to the above embodiments, which are not described herein again.
In an embodiment of the present invention, a computing device, which may be a terminal, may include: a processor (processor), a communication Interface (communication Interface), a memory (memory), a display screen and an input device. The processor, the communication interface and the memory are communicated with each other through a communication bus. The processor is used to provide computing and control capabilities. The memory comprises a nonvolatile storage medium and an internal memory, wherein the nonvolatile storage medium stores an operating system and a computer program, and the computer program is executed by the processor to realize a three-dimensional river channel model construction method for earthquake simulation; the internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The communication interface is used for carrying out wired or wireless communication with an external terminal, and the wireless communication can be realized through WIFI, a manager network, NFC (near field communication) or other technologies. The display screen can be a liquid crystal display screen or an electronic ink display screen, and the input device can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on a shell of the computing equipment, an external keyboard, a touch pad or a mouse and the like. The processor may call logic instructions in memory to perform the following method: setting the length, the width and the height of the three-dimensional river channel model, and setting a displayed plane range according to the length, the width and the height; setting the number of layer interfaces contained in the three-dimensional river channel model, and adjusting and controlling all the interface layers in a plane range; setting a river channel name, acquiring a central control point plane distribution diagram, and obtaining a primary river channel connection diagram and a secondary river channel connection diagram based on the central control point plane distribution diagram to generate a river channel depth plane diagram; and selecting the interface layer and the river course to obtain a three-dimensional display image of the interface layer and the river course.
In addition, the logic instructions in the memory may be implemented in the form of software functional units and may be stored in a computer readable storage medium when sold or used as a stand-alone product. Based on such understanding, the technical solution of the present invention or a part thereof which substantially contributes to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that the above-described configurations of computing devices are merely some of the configurations associated with the present application and do not constitute limitations on the computing devices to which the present application may be applied, as a particular computing device may include more or fewer components, or some components in combination, or have a different arrangement of components.
In one embodiment of the invention, a computer program product is provided, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions that, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments, for example, comprising: setting the length, the width and the height of the three-dimensional river channel model, and setting a displayed plane range according to the length, the width and the height; setting the number of layer interfaces contained in the three-dimensional river channel model, and adjusting and controlling all the interface layers in a plane range; setting a river channel name, acquiring a central control point plane distribution diagram, and obtaining a primary river channel connection diagram and a secondary river channel connection diagram based on the central control point plane distribution diagram to generate a river channel depth plane diagram; and selecting the interface layer and the river course to obtain a three-dimensional display image of the interface layer and the river course.
In one embodiment of the invention, a non-transitory computer-readable storage medium is provided, which stores server instructions that cause a computer to perform the methods provided by the above embodiments, for example, including: setting the length, the width and the height of the three-dimensional river channel model, and setting a displayed plane range according to the length, the width and the height; setting the number of layer interfaces contained in the three-dimensional river channel model, and adjusting and controlling all the interface layers in a plane range; setting a river channel name, acquiring a central control point plane distribution diagram, and obtaining a primary river channel connection diagram and a secondary river channel connection diagram based on the central control point plane distribution diagram to generate a river channel depth plane diagram; and selecting the interface layer and the river course to obtain a three-dimensional display image of the interface layer and the river course.
The implementation principle and technical effect of the computer-readable storage medium provided by the above embodiments are similar to those of the above method embodiments, and are not described herein again.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A three-dimensional river channel model construction method for seismic simulation is characterized by comprising the following steps:
setting the length, the width and the height of the three-dimensional river channel model, and setting a displayed plane range according to the length, the width and the height;
setting the number of layer interfaces contained in the three-dimensional river channel model, and adjusting and controlling all the interface layers in a plane range;
setting a river channel name, acquiring a central control point plane distribution diagram, and acquiring a primary and secondary river channel connection diagram based on the central control point plane distribution diagram to generate a river channel depth plane diagram;
and selecting the interface layer and the river course to obtain a three-dimensional display image of the interface layer and the river course.
2. The method for constructing a three-dimensional river channel model for seismic modeling according to claim 1, wherein the setting of the displayed plane range according to the length, width and height comprises:
setting the control point to generate the plane range of the display, assuming the plane is P 1 ；
Setting a plane range for controlling the depth display of a point, assuming that the plane is P 2 ；
Setting a plane range after interpolation for a display layer and a river channel, and assuming the plane as P 3 。
P for setting stereoscopic display plane for layer and river course 0 To indicate.
3. The method for constructing a three-dimensional river channel model for seismic modeling according to claim 1, wherein the adjusting and controlling operation of all interface layers in a plane range comprises:
setting control points for a layer interface with the sequence number i, and controlling in an equidistant mode in the x direction and the y direction;
adjusting the depth of a control point of a layer interface with the sequence number i;
generating layer interface data by utilizing a linear interpolation algorithm for the layer interface control point with the serial number i, and displaying the calculation result on a plane P 3 In (1).
4. The method of claim 3, wherein the x-direction and the y-direction are controlled in an equidistant manner, and the method comprises: assume that the number of control points in the x and y directions is
Based on the preset control rule, then in the plane P 1 Generating a control point distribution map.
5. The method of claim 3, wherein the adjusting the depth of the control point of the layer interface with sequence number i comprises:
in plane P 2 On the graph, the control points with the same y coordinate are displayed each time, then the depths of the control points are modified in a man-machine interaction mode, and the depths of the control points with other y coordinates are modified in sequence until all the control points are completely modified.
6. The method for constructing a three-dimensional river channel model for seismic modeling according to claim 1, wherein the setting of the river channel name and the obtaining of the plane distribution diagram of the central control point comprise:
supposing that the name of the River channel is River, selecting a control layer position where the River channel is located and setting the stage number of the River channel, wherein the stage number is assumed to be m;
the branch river channels of 1, m are respectively arranged on a plane P 1 And generating a plane distribution diagram of the central control points of the primary and secondary riverways.
7. The method of claim 1, wherein the generating a channel depth plane map comprises:
connecting the central control points of the primary and secondary riverways to obtain a primary and secondary riverway connection diagram;
modifying the depth of the primary and secondary river channels on the primary and secondary river channel connection diagram, selecting the names of the primary and secondary river channels, and arranging the primary and secondary river channels on a plane P 2 The depth of the river channel control point is modified in the graph;
setting the width range of each control point, obtaining the river channel boundary based on the center control point and the width of the control point, and obtaining the width of the river channel boundary on a plane P 3 And generating a river channel depth plane graph.
8. A three-dimensional river model construction system for seismic simulation, comprising:
the first processing module is used for setting the length, the width and the height of the three-dimensional river channel model and setting a displayed plane range according to the length, the width and the height;
the second processing module is used for setting the number of layer interfaces contained in the three-dimensional river channel model and adjusting and controlling all the interface layers in a plane range;
the third processing module is used for setting the name of the river channel, acquiring a central control point plane distribution map, and acquiring a primary river channel connection map and a secondary river channel connection map based on the central control point plane distribution map so as to generate a river channel depth plane map;
and the three-dimensional display module selects the interface layer and the river channel to obtain a three-dimensional display image of the interface layer and the river channel.
9. A computer readable storage medium storing one or more programs, the one or more programs comprising instructions, which when executed by a computing device, cause the computing device to perform any of the methods of claims 1-7.
10. A computing device, comprising: one or more processors, memory, and one or more programs stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for performing any of the methods of claims 1-7.
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