Formation construction method and device

Abstract

The present invention provides a method and device for constructing a stratum, the method comprising: collecting seismic data of a target area; establishing an initial three-dimensional geological model and a fault surface in the initial three-dimensional geological model according to the collected seismic data of the target area; establishing a stratum segment in the initial three-dimensional geological model using a profile line; determining the vertical direction of the profile according to the start and end coordinates of the profile line; constructing a large triangulated network of the model stratum segment using the side length of the triangle and the vertical direction of the profile; determining a stratum segment subnet according to the determined large triangulated network of the stratum segment and the fault surface in the initial three-dimensional geological model; and constructing a stratum according to the determined stratum segment subnet.

Description

Technical Field

[0001] The present invention relates to exploration technology, and in particular to a stratum construction method and device. Background Art

[0002] Establishing a 3D geological model is a prerequisite for model forward modeling and illumination. The general technology of establishing 3D strata based on profile data first constructs a continuous layer based on all stratigraphic segment data belonging to the same stratum in the profile, and then intersects and cuts it with the faults in the model, and then interactively edits it to form the fault distance. When there are many faults and stratigraphic segments, the interactive editing workload is large and the modeling cycle is long. Summary of the invention

[0003] In order to improve the efficiency of complex formation construction and shorten the model establishment cycle, an embodiment of the present invention provides a formation construction method, the method comprising:

[0004] Acquire seismic data in the target area;

[0005] Establishing an initial three-dimensional geological model and a fault plane in the initial three-dimensional geological model based on the acquired seismic data of the target area;

[0006] Establishing stratigraphic segments in the initial three-dimensional geological model using a predetermined section line;

[0007] Determine the vertical direction of the section according to the starting and ending coordinates of the section line;

[0008] Constructing a large triangulated network of the stratigraphic section using the preset triangle side lengths, stratigraphic sections and the vertical direction of the section;

[0009] Determine a sub-triangulated network of the stratigraphic segment according to the determined large triangulated network of the stratigraphic segment and the fault plane in the initial three-dimensional geological model;

[0010] The strata are constructed based on the determined stratum segment triangulation.

[0011] In the embodiment of the present invention, the fault plane is a through-break fault plane, and the fault plane intersects with two boundaries of the initial three-dimensional geological model.

[0012] In an embodiment of the present invention, the step of establishing a stratigraphic segment in the initial three-dimensional geological model using a predetermined section line includes:

[0013] Defining a section using a predetermined section line at the top interface of the boundary range of the initial three-dimensional geological model;

[0014] Stratigraphic sections are established within the profile.

[0015] In the embodiment of the present invention, the method of constructing the large triangulated network of the stratum segment by using the preset triangle side length and the vertical direction of the section includes:

[0016] Determine discrete points by extending the stratum segment in a direction perpendicular to the profile according to a preset triangle side length;

[0017] A large triangulated network of the stratigraphic segment is constructed based on the determined discrete points and the boundary range of the initial three-dimensional geological model.

[0018] In the embodiment of the present invention, the determining of the sub-triangulated network of the stratigraphic segment according to the determined large triangulated network of the stratigraphic segment and the fault plane in the initial three-dimensional geological model comprises:

[0019] The large triangulated network is intersected with each fault plane in the initial three-dimensional geological model, and the large triangulated network is divided into stratigraphic segment sub-triangulated networks.

[0020] In the embodiment of the present invention, constructing the stratum according to the determined stratum segment subnet includes:

[0021] determining an initial boundary of a stratigraphic segment based on the discrete points;

[0022] The strata are constructed using the strata segment triangulations that completely fall within the initial boundaries.

[0023] At the same time, the present invention also provides a stratum construction device, comprising:

[0024] A data acquisition module, used to collect seismic data of the target area;

[0025] A geological model building module is used to build an initial three-dimensional geological model and a fault plane in the initial three-dimensional geological model based on the seismic data collected in the target area;

[0026] A stratigraphic segment establishment module, used for establishing stratigraphic segments in the initial three-dimensional geological model using a predetermined section line;

[0027] A vertical direction determination module, used to determine the vertical direction of the section according to the start and end coordinates of the section line;

[0028] A large triangulated network construction module is used to construct a large triangulated network of the stratum segment using a preset triangle side length, stratum segment and the vertical direction of the section;

[0029] A sub-triangulation determining module is used to determine a sub-triangulation of a stratum segment according to the determined large triangulation of the stratum segment and the fault plane in the initial three-dimensional geological model;

[0030] The stratum construction module is used to construct the stratum according to the determined stratum segment triangulation network.

[0031] In the embodiment of the present invention, the fault plane is a through-break fault plane, and the fault plane intersects with two boundaries of the initial three-dimensional geological model.

[0032] In the embodiment of the present invention, the formation segment establishment module includes:

[0033] A profile definition unit, used to define a profile using a predetermined profile line at a top interface of a boundary range of the initial three-dimensional geological model;

[0034] The stratigraphic section establishing unit is used to establish a stratigraphic section within the section.

[0035] In the embodiment of the present invention, the large triangulated network construction module includes:

[0036] A discrete point determination unit, used for determining discrete points by extending the stratum segment in a direction perpendicular to the profile according to a preset triangle side length;

[0037] The large triangulated network construction unit is used to construct a large triangulated network of the stratigraphic segment based on the determined discrete points and the boundary range of the initial three-dimensional geological model.

[0038] In an embodiment of the present invention, the sub-triangulation network determination module determines the sub-triangulation network of the stratum segment according to the determined large triangulation network of the stratum segment and the fault plane in the initial three-dimensional geological model, including:

[0039] The large triangulated network is intersected with each fault plane in the initial three-dimensional geological model, and the large triangulated network is divided into stratigraphic segment sub-triangulated networks.

[0040] In an embodiment of the present invention, the formation construction module includes:

[0041] An initial boundary determination unit, used to determine the initial boundary of the formation segment according to the discrete points;

[0042] A construction unit is used to construct the stratum using the stratum segment triangulation that completely falls within the initial boundary.

[0043] At the same time, the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, and the above method is implemented when the processor executes the computer program.

[0044] At the same time, the present invention also provides a computer-readable storage medium, which stores a computer program for executing the above method.

[0045] The present invention can automatically construct each stratum into a stratum containing multiple slices according to the stratum segment of the three-dimensional geological model section, form a reasonable fault distance, avoid interactive editing work, and improve the efficiency of stratum modeling.

[0046] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 A flow chart of the formation construction method provided by the present invention;

[0049] Figure 2 A schematic diagram of a model with a group of faults established in an embodiment of the present invention;

[0050] Figure 3 A top view of a model with a group of faults established in an embodiment of the present invention;

[0051] Figure 4 It is a schematic diagram of an embodiment of the present invention;

[0052] Figure 5 The three-dimensional model and the cross section established in the embodiment of the present invention;

[0053] Figure 6 A schematic diagram of a model for establishing a cross section and determining a vertical direction of the cross section in an embodiment of the present invention;

[0054] Figure 7 A schematic diagram of a stratigraphic segment defining multiple faults and sections in a three-dimensional model established in an embodiment of the present invention;

[0055] Figure 8 are discrete points obtained in the embodiment of the present invention;

[0056] Fig. 9 is a top view of discrete points obtained by extrapolation in an embodiment of the present invention;

[0057] Fig.10 Schematic diagram of a large triangulated network obtained in an embodiment of the present invention;

[0058] Fig.11 It is a schematic diagram of an embodiment of the present invention;

[0059] Fig.12 It is a schematic diagram of an embodiment of the present invention;

[0060] Fig.13 is a schematic diagram of multiple split sub-triangulated networks in an embodiment of the present invention;

[0061] Fig.14 A schematic diagram of a boundary determined by discrete points of a formation segment in an embodiment of the present invention;

[0062] Fig.15 It is a schematic diagram of a valid subnet determined by intersecting a large triangulated network and a fault in an embodiment of the present invention;

[0063] Fig.16 It is a schematic diagram of a layer segment in a cross section in an embodiment of the present invention;

[0064] Fig.17 The sharded stratum constructed in the embodiment of the present invention;

[0065] Fig.18 It is a block diagram of a stratum construction device in an embodiment of the present invention;

[0066] Fig.19 A schematic diagram of an electronic device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0068] The prior art technology for building three-dimensional strata based on profile data first constructs a continuous layer according to all the stratigraphic segment data belonging to the same stratum in the profile, then intersects and cuts it with the faults in the model, and then interactively edits it to form the fault distance. When there are many faults and stratigraphic segments, the interactive editing workload is large and the modeling cycle is long. The present invention aims to provide a method for constructing stratigraphic slices according to profiles, so as to improve the construction efficiency of complex strata and shorten the complex modeling cycle.

[0069] like Figure 1 FIG. 1 is a flow chart of a formation construction method provided by the present invention, the method comprising:

[0070] Step S101, collecting seismic data of a target area;

[0071] Step S102, establishing an initial three-dimensional geological model and a fault plane in the initial three-dimensional geological model according to the collected seismic data of the target area;

[0072] Step S103, establishing a stratigraphic segment in the initial three-dimensional geological model using a predetermined section line;

[0073] Step S104, determining the vertical direction of the section according to the start and end coordinates of the section line;

[0074] Step S105, constructing a large triangulated network of the stratigraphic section using the preset triangle side length, stratigraphic section and the vertical direction of the section;

[0075] Step S106, determining a sub-triangulated network of the stratigraphic segment according to the determined large triangulated network of the stratigraphic segment and the fault plane in the initial three-dimensional geological model;

[0076] Step S107, constructing the stratum according to the determined stratum segment triangulation network.

[0077] The technical solution of the present invention is further described in detail below in conjunction with specific steps and drawings.

[0078] The specific implementation of the embodiment of the present invention is as follows:

[0079] In this embodiment, an initial three-dimensional geological model is established, and three faults are established. The number of faults is established according to actual needs, and for the sake of convenience, three faults are established for illustration.

[0080] Create a section in the model;

[0081] Four stratigraphic segments of formation H1 are established in the model.

[0082] Four sub-triangulated networks are automatically constructed from the four stratigraphic segments of stratigraphic H1.

[0083] In the embodiment of the present invention, firstly, the data of each stratigraphic segment is extrapolated in the vertical direction of the profile position, then the extrapolated data is sequentially constructed into continuous planes, and the continuous planes and faults are intersected and clipped, and finally the best stratigraphic slice is selected and added to the stratigraphic segment according to the initial position of the stratigraphic segment. In this way, a stratigraphic segment containing multiple slices is automatically formed, thus avoiding interactive editing work and improving the efficiency of stratigraphic modeling.

[0084] The fragmented stratum construction method provided by the present invention realizes automatic fragmented stratum construction by updating the overall stratum construction steps, which has the effect of avoiding a large amount of interactive editing and improving the stratum construction efficiency.

[0085] Specifically, the fragmented formation construction provided by the embodiment of the present invention is implemented through the following specific steps:

[0086] Step 1. Define the scope of the three-dimensional geological model. In this embodiment, the defined three-dimensional geological model is marked as a bounding box Box.

[0087] The scope of the defined 3D geological model is a cuboid represented by the minimum point {x,y,z} and the maximum point {X,Y,Z}. The model has 6 boundary faces, each of which is a triangulated network. The bounding box includes the scope of X, Y, and Z.

[0088] Step 2. Create a set of on-off fault planes in the model.

[0089] Regarding the establishment of the on-off fault plane, it can be established by discrete points or by profiles, as long as the fault is an on-off fault, that is, the fault intersects with the two boundaries of the model. Each fault is a triangulated network. Figure 2 As shown in Figure 1, a schematic diagram of a model with a set of faults is established. Figure 3 A top view of a model with a set of faults. It can be seen from the top view that each fault plane intersects two boundaries of the model.

[0090] Step 3, define a section line, and define multiple stratigraphic segments in sequence, each stratigraphic segment is identified by stratigraphic name and section number.

[0091] In an embodiment of the present invention, the step of establishing a stratigraphic segment in the initial three-dimensional geological model using a predetermined section line includes:

[0092] Defining a section using a predetermined section line at the top interface of the boundary range of the initial three-dimensional geological model;

[0093] Stratigraphic sections are established within the profile.

[0094] like Figure 4 As shown, on the top interface of the model Box, two points a and b are used to define a section line P, such as Figure 4 As shown, the coordinates of points a and b are (0.0, 4000) and (8000, 4000) respectively;

[0095] The section position is vertical downward. In the section, a set of polylines is interactively used to define a stratigraphic segment. Each stratigraphic segment is identified by a layer and segment number. Each stratigraphic segment consists of a set of control points. Figure 5 As shown, the established three-dimensional model and section are shown.

[0096] Step 4: Calculate the vertical direction of the section according to the starting and ending coordinates of the section line P.

[0097] like Figure 6 As shown, this is a schematic diagram of the model for establishing a section and determining the vertical direction of the section.

[0098] In the embodiment of the present invention, in the aforementioned step S105, constructing a large triangulated network of the stratum segment using a preset triangle side length and a vertical direction of the section includes:

[0099] Determine discrete points by extending the stratum segment in a direction perpendicular to the profile according to a preset triangle side length;

[0100] Plane triangulation is performed based on the determined discrete points and the boundary range of the initial three-dimensional geological model to construct a large triangulated network of the stratigraphic segment. Execute the following step 5 to determine the discrete points.

[0101] Step 5, according to a stratigraphic section of the stratum, extend to both sides according to the side length of the given triangle and the vertical direction of the section line to obtain a set of discrete points.

[0102] Specifically, in the embodiment of the present invention, according to the stratum i A stratigraphic segment Segm i , according to the side length of the triangle and the vertical direction of the section line, extend to both sides respectively, and the extension points appropriately exceed the model bounding box to obtain a set of discrete points PtSet. The model bounding box here is the model bounding box determined when the initial three-dimensional geological model is established.

[0103] like Figure 7 As shown, it is a schematic diagram of a stratigraphic segment defining multiple faults and sections in a three-dimensional model established in an embodiment of the present invention, which includes: three faults, a section, and a stratigraphic segment, and the stratigraphic segment includes a segment Segm1.

[0104] According to the method of perpendicularity between the side length and the section line of the given triangle, extend to both sides and get Figure 7 A set of discrete points obtained by extending the stratigraphic segment Segm1, such as Figure 8 shown. Fig. 9 Shown is a top view of the extrapolated discrete points.

[0105] Step 6: Based on the discrete points obtained above, a large triangulated network TriNet of the stratum is constructed according to the X and Y range boundaries of the model. That is, based on the scattered point set obtained by the above extrapolation, the X and Y range of the model is used as the boundary, and plane triangulation is performed within this boundary, and then the vertex interpolation is performed to obtain a large triangulated network TriNet, as shown in Fig.10 shown.

[0106] In the embodiment of the present invention, the step S106 of determining the sub-triangulation network of the stratigraphic segment according to the determined large triangulation network of the stratigraphic segment and the fault plane in the initial three-dimensional geological model includes:

[0107] Step 7: intersect the large triangulated network with each fault plane in the initial three-dimensional geological model, and divide the large triangulated network into stratigraphic segment triangulated networks.

[0108] In this embodiment, the large triangulated network TriNet and the aforementioned faults are used to intersect the triangulated network, such as Fig.11As shown, a set of intersection lines are obtained, and the boundary and intersection lines of the large triangulated network are used to construct a triangulated network. At this time, it is a triangulated network A, in which all triangles have an adjacency relationship, such as Fig.12 As shown;

[0109] Use intersection lines to split the triangulated network into sub-networks: Use intersection lines to cancel the neighbor relationship of triangles adjacent to the intersection lines in the triangulated network, and then start neighbor search from any triangle in the triangulated network. All adjacent triangulated networks are combined into a sub-network until all triangles in the triangulated network have been searched, such as Fig.13 As shown, there are multiple split sub-triangulated networks.

[0110] Step 8, calculate a boundary from the discrete points, and take the sub-triangulated meshes that fall completely within the boundary and paste them into the stratum.

[0111] In the embodiment of the present invention, constructing the stratum according to the determined stratum segment subnet includes:

[0112] determining an initial boundary of a stratigraphic segment based on the discrete points;

[0113] The strata are constructed using the strata segment triangulations that completely fall within the initial boundaries.

[0114] In this embodiment, a boundary is calculated from the discrete point set PtSet, and the sub-triangulated networks in the sub-triangulated network TriNetSet that are completely within the boundary are added to the stratum Stratum. i .

[0115] Regarding the determination of the boundary, according to the aforementioned method, a set of scattered points is obtained by extrapolating a stratigraphic segment in the vertical direction of the profile, and the initial boundary is calculated by the scattered points, and only the boundary x and y are used for statistics. Fig.14 is the boundary calculated from the discrete points of the stratigraphic segment.

[0116] For the above group of subnets, determine whether the vertices of all triangles of the subnet (based only on x, y) are within the above boundary. If all vertices fall within the boundary, the subnet is valid. Fig.15 As shown, it is a determined valid subnet.

[0117] right Fig.16 Stratum i Repeat steps 5 to 8 for the other stratum segments Segm2, Segm3 and Segm4 until the stratum Stratum i All stratigraphic sections have been constructed, such as Fig.17 As shown, the stratigraphic sections are constructed from various stratigraphic segments.

[0118] Through the above steps, all the strata in the geological model can be automatically segmented and constructed without any editing operations, which can effectively shorten the modeling time of complex models.

[0119] At the same time, if Fig.18 As shown, the present invention also provides a formation construction device, comprising:

[0120] Data acquisition module 201, used to acquire seismic data of a target area;

[0121] A geological model building module 202 is used to build an initial three-dimensional geological model and a fault plane in the initial three-dimensional geological model according to the collected seismic data of the target area;

[0122] A stratigraphic segment establishment module 203, for establishing stratigraphic segments in the initial three-dimensional geological model using a predetermined section line;

[0123] A vertical direction determination module 204, configured to determine the vertical direction of the section according to the start and end coordinates of the section line;

[0124] A large triangulated network construction module 205 is used to construct a large triangulated network of the stratum segment using a preset triangle side length, stratum segment and the vertical direction of the section;

[0125] A sub-triangulation determining module 206 is used to determine a sub-triangulation of a stratum segment according to the determined large triangulation of the stratum segment and the fault plane in the initial three-dimensional geological model;

[0126] The stratum construction module 207 is used to construct the stratum according to the determined stratum segment triangulation network.

[0127] For those skilled in the art, the implementation of the formation construction device can be clearly understood from the aforementioned embodiments of the method, and will not be described in detail here.

[0128] This embodiment also provides an electronic device, which may be a desktop computer, a tablet computer, a mobile terminal, etc., but this embodiment is not limited thereto. In this embodiment, the electronic device may refer to the implementation of the method, the contents of which are incorporated herein, and the repeated parts are not repeated.

[0129] Fig.19 FIG. 6 is a schematic block diagram of a system structure of an electronic device 600 according to an embodiment of the present invention. Fig.19 As shown, the electronic device 600 may include a central processor 100 and a memory 140; the memory 140 is coupled to the central processor 100. It should be noted that this figure is exemplary; other types of structures may also be used to supplement or replace this structure to implement telecommunication functions or other functions.

[0130] In one embodiment, the formation construction function may be integrated into the central processor 100. The central processor 100 may be configured to perform the following control:

[0131] Acquire seismic data in the target area;

[0132] Establishing an initial three-dimensional geological model and a fault plane in the initial three-dimensional geological model based on the acquired seismic data of the target area;

[0133] Establishing stratigraphic segments in the initial three-dimensional geological model using a predetermined section line;

[0134] Determine the vertical direction of the section according to the starting and ending coordinates of the section line;

[0135] Constructing a large triangulated network of the stratigraphic section using the preset triangle side lengths, stratigraphic sections and the vertical direction of the section;

[0136] Determine a sub-triangulated network of the stratigraphic segment according to the determined large triangulated network of the stratigraphic segment and the fault plane in the initial three-dimensional geological model;

[0137] The strata are constructed based on the determined stratum segment triangulation.

[0138] like Fig.19 As shown, the electronic device 600 may further include: a communication module 110, an input unit 120, an audio processing unit 130, a display 160, and a power supply 170. It is worth noting that the electronic device 600 does not necessarily have to include Fig.19 In addition, the electronic device 600 may also include Fig.19 For components not shown, reference may be made to the prior art.

[0139] like Fig.19 As shown, the central processor 100 is sometimes also referred to as a controller or an operation control, and may include a microprocessor or other processor devices and / or logic devices. The central processor 100 receives inputs and controls the operations of various components of the electronic device 600.

[0140] The memory 140 may be, for example, one or more of a cache, a flash memory, a hard drive, a removable medium, a volatile memory, a non-volatile memory or other suitable devices. The above-mentioned information related to the failure may be stored, and a program for executing the relevant information may also be stored. The CPU 100 may execute the program stored in the memory 140 to implement information storage or processing.

[0141] The input unit 120 provides input to the CPU 100. The input unit 120 is, for example, a key or a touch input device. The power supply 170 is used to provide power to the electronic device 600. The display 160 is used to display display objects such as images and text. The display may be, for example, an LCD display, but is not limited thereto.

[0142] The memory 140 may be a solid-state memory, such as a read-only memory (ROM), a random access memory (RAM), a SIM card, etc. It may also be a memory that saves information even when the power is off, can be selectively erased, and is provided with more data, examples of which are sometimes referred to as EPROMs, etc. The memory 140 may also be some other type of device. The memory 140 includes a buffer memory 141 (sometimes referred to as a buffer). The memory 140 may include an application / function storage unit 142, which is used to store application programs and function programs or processes for executing the operation of the electronic device 600 through the central processor 100.

[0143] The memory 140 may also include a data storage unit 143 for storing data, such as contacts, digital data, pictures, sounds, and / or any other data used by the electronic device. The driver storage unit 144 of the memory 140 may include various drivers for communication functions of the electronic device and / or for executing other functions of the electronic device (such as messaging applications, address book applications, etc.).

[0144] The communication module 110 is a transmitter / receiver 110 that transmits and receives signals via an antenna 111. The communication module (transmitter / receiver) 110 is coupled to the central processor 100 to provide input signals and receive output signals, which may be the same as the case of a conventional mobile communication terminal.

[0145] Based on different communication technologies, multiple communication modules 110 may be provided in the same electronic device, such as a cellular network module, a Bluetooth module and / or a wireless LAN module. The communication module (transmitter / receiver) 110 is also coupled to a speaker 131 and a microphone 132 via an audio processor 130 to provide an audio output via the speaker 131 and receive an audio input from the microphone 132, thereby realizing a common telecommunication function. The audio processor 130 may include any suitable buffer, decoder, amplifier, etc. In addition, the audio processor 130 is also coupled to the central processor 100, so that the sound can be recorded on the local machine through the microphone 132, and the sound stored on the local machine can be played through the speaker 131.

[0146] An embodiment of the present invention further provides a computer-readable program, wherein when the program is executed in an electronic device, the program enables a computer to execute the formation construction method as described in the above embodiment in the electronic device.

[0147] An embodiment of the present invention further provides a storage medium storing a computer-readable program, wherein the computer-readable program enables a computer to execute the formation construction described in the above embodiment in an electronic device.

[0148] The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. Many features and advantages of these embodiments are clear from this detailed description, and therefore the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. In addition, since many modifications and changes are readily apparent to those skilled in the art, the embodiments of the present invention are not intended to be limited to the precise structure and operation illustrated and described, but all suitable modifications and equivalents that fall within their scope may be included.

[0149] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0150] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0151] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0152] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0153] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A formation construction method, characterized in that: The stratum construction method comprises: Acquire seismic data in the target area; Establishing an initial three-dimensional geological model and a fault plane in the initial three-dimensional geological model based on the acquired seismic data of the target area; Establishing stratigraphic segments in the initial three-dimensional geological model using a predetermined section line; Determine the vertical direction of the section according to the starting and ending coordinates of the section line; Constructing a large triangulated network of the stratigraphic section using the preset triangle side lengths, stratigraphic sections and the vertical direction of the section; Determine a sub-triangulated network of the stratigraphic segment according to the determined large triangulated network of the stratigraphic segment and the fault plane in the initial three-dimensional geological model; The strata are constructed based on the determined stratum segment triangulation.

2. The formation construction method according to claim 1, characterized in that: The fault plane is a through-break fault plane, and the fault plane intersects with two boundaries of the initial three-dimensional geological model.

3. The formation construction method according to claim 1, characterized in that: The method of establishing a stratigraphic segment in the initial three-dimensional geological model using a predetermined section line includes: Defining a section using a predetermined section line at the top interface of the boundary range of the initial three-dimensional geological model; Stratigraphic sections are established within the profile.

4. The formation construction method according to claim 1, characterized in that: The method of constructing the large triangulated network of the stratum segment by using the preset triangle side length and the vertical direction of the section includes: Determine discrete points by extending the stratum segment in a direction perpendicular to the profile according to a preset triangle side length; A large triangulated network of the stratigraphic segment is constructed based on the determined discrete points and the boundary range of the initial three-dimensional geological model.

5. The formation construction method according to claim 4, characterized in that: The method of determining the sub-triangulated network of the stratigraphic segment according to the determined large triangulated network of the stratigraphic segment and the fault plane in the initial three-dimensional geological model comprises: The large triangulated network is intersected with each fault plane in the initial three-dimensional geological model, and the large triangulated network is divided into stratigraphic segment sub-triangulated networks.

6. The formation construction method according to claim 5, characterized in that: The step of constructing the stratum according to the determined stratum segment subnet comprises: determining an initial boundary of a stratigraphic segment based on the discrete points; The strata are constructed using the strata segment triangulations that completely fall within the initial boundaries.

7. A stratum construction device, characterized in that: The stratum construction device comprises: A data acquisition module, used to collect seismic data of the target area; A geological model building module is used to build an initial three-dimensional geological model and a fault plane in the initial three-dimensional geological model based on the seismic data collected in the target area; A stratigraphic segment establishment module, used for establishing stratigraphic segments in the initial three-dimensional geological model using a predetermined section line; A vertical direction determination module, used to determine the vertical direction of the section according to the start and end coordinates of the section line; A large triangulated network construction module is used to construct a large triangulated network of the stratum segment using a preset triangle side length, stratum segment and the vertical direction of the section; A sub-triangulation determining module is used to determine a sub-triangulation of a stratum segment according to the determined large triangulation of the stratum segment and the fault plane in the initial three-dimensional geological model; The stratum construction module is used to construct the stratum according to the determined stratum segment triangulation network.

8. The stratum construction device according to claim 7, characterized in that: The fault plane is a through-break fault plane, and the fault plane intersects with two boundaries of the initial three-dimensional geological model.

9. The stratum construction device according to claim 7, characterized in that: The formation segment establishment module includes: A profile definition unit, used to define a profile using a predetermined profile line at a top interface of a boundary range of the initial three-dimensional geological model; The stratigraphic section establishing unit is used to establish a stratigraphic section within the section.

10. The stratum construction device according to claim 7, characterized in that: The large triangulated network construction module includes: A discrete point determination unit, used for determining discrete points by extending the stratum segment in a direction perpendicular to the profile according to a preset triangle side length; The large triangulated network construction unit is used to construct a large triangulated network of the stratigraphic segment based on the determined discrete points and the boundary range of the initial three-dimensional geological model.

11. The stratum construction device according to claim 10, characterized in that: The sub-triangulation network determination module determines the sub-triangulation network of the stratum segment according to the determined large triangulation network of the stratum segment and the fault plane in the initial three-dimensional geological model, including: The large triangulated network is intersected with each fault plane in the initial three-dimensional geological model, and the large triangulated network is divided into stratigraphic segment sub-triangulated networks.

12. The stratum construction device according to claim 11, characterized in that: The formation construction module comprises: An initial boundary determination unit, used to determine the initial boundary of the formation segment according to the discrete points; A construction unit is used to construct the stratum using the stratum segment triangulation that completely falls within the initial boundary.

13. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program for executing the method according to any one of claims 1 to 6.

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