Banding and grading breaking joint body modeling method, device, equipment, medium and program

Abstract

The invention relates to a reservoir modeling technology, and discloses a zoning and grading breaking joint body modeling method, device, equipment, medium and program, and the method comprises the steps: obtaining a target breaking joint body, and carrying out the contour carving of the target breaking joint body, and obtaining an external contour model of the breaking joint body; carrying out zoning construction on the target breaking joint body by utilizing the breaking joint body external contour model to obtain a breaking joint body double-zone structure model consisting of a fracture zone and a crack zone; grading cracks of the target breaking joint body according to the breaking joint body double-belt structure model to obtain crack scales of a fracture belt and a crack belt; and constructing a discrete crack model of the target breaking joint body according to the crack scales of the fracture zone and the crack zone. The method can accurately describe and predict the spatial distribution characteristics and rules of the natural fractures of the target breaking joint body oil reservoir, and improves the accuracy of the model by adopting a modeling method combining randomness and certainty.

Description

Technical Field

[0001] The present invention relates to the technical field of reservoir modeling, and in particular to a method, device, equipment, medium and program for zoning and grading fracture body modeling. Background Art

[0002] This section is intended to provide a background or context to the embodiments recited in the claims. No admission is made that the description herein is prior art by inclusion in this section.

[0003] Fault body refers to a reservoir body developed under the background of strike-slip faults, which is composed of faults, associated brittle fracture zones, and dense low-permeability sandstones that have been transformed by them and are blocked by impermeable mudstones and dense layers on the upper and side parts. From the fault to both sides, according to the degree of fracture development, it can be divided into fracture zones and fracture zones in turn, among which cavities occasionally develop in the core of the fault. The earliest literature report on fault body appeared in 2019. However, based on the exploration and development practice of tight oil in the Yanchang Formation on the southern edge of the Ordos Basin, researchers from the North China Oil and Gas Branch proposed the geological concept of fault body in 2018 and guided the deployment of well sites, proving that fault body reservoirs are the main high-yield enrichment type of tight oil, and fractures are the main factor controlling the distribution of sweet spots. The introduction of the concept of fault body has expanded people's research on faults from focusing on the fault itself to the fracture development zone of the fault and its adjacent areas, and geological understanding and prediction methods have also been expanded accordingly. At present, the research on fault bodies mainly focuses on the macroscopic scale of fault body development, geological boundaries, planar distribution patterns, reservoir formation patterns and geophysical predictions. Relevant research work has been carried out and many interim results and understandings have been achieved, which support the formulation of tight oil development plans and well site deployment.

[0004] Although the exploration and development technology of tight oil has achieved good results based on the guidance of fault body theory, the research on fault bodies is still in the exploratory stage, and there are very few publicly published literature. At the same time, due to the limitations of insufficient geological knowledge and lack of geological data, the research on the internal structure of fault bodies and the spatial distribution characteristics of fractures is limited to core description and field outcrop observation, and quantitative characterization methods and technologies have not yet been formed, which seriously restricts the development of detailed description of fault body reservoirs, target optimization and well trajectory optimization. In summary, how to accurately describe and predict the spatial distribution characteristics and laws of natural fractures in fault bodies has become an urgent problem to be solved. Summary of the invention

[0005] In view of the above problems, embodiments of the present invention provide a method, device, equipment, medium and program for modeling a fracture body with different zones and levels.

[0006] In a first aspect, an embodiment of the present invention provides a method for modeling a fracture body with different zones and levels, comprising:

[0007] Acquire a target fracture body, and perform contour carving on the target fracture body to obtain an external contour model of the fracture body;

[0008] The target fault body is constructed by dividing the target fault body into zones using the fault body external contour model to obtain a double-zone structure model of the fault body consisting of a broken zone and a crack zone;

[0009] Classifying the cracks in the target fault body according to the double-band structure model of the fault body to obtain the crack scales of the broken zone and the crack zone;

[0010] A discrete fracture model of the target fracture body is constructed according to the fracture scales of the fracture zone and the fracture zone.

[0011] According to an embodiment of the present invention, the step of performing contour carving on the target fracture body to obtain an external contour model of the fracture body includes:

[0012] Reconstructing the surface of the target fault body to obtain a three-dimensional geological body model without faults;

[0013] Cutting the non-fault three-dimensional geological body model according to the fault data of the target fault body to obtain the fault position of the target fault body;

[0014] The non-fault three-dimensional geological body model is adjusted according to the fault position to obtain a fault body external contour model.

[0015] According to an embodiment of the present invention, the step of reconstructing the surface of the target fault body to obtain a three-dimensional geological body model without faults includes:

[0016] Performing stratigraphic division on the target fracture body to obtain stratigraphic sampling point data;

[0017] Performing interpolation calculation on the target fracture body according to the formation sampling point data to obtain the value of the interpolation point;

[0018] The target fracture body is interpolated using the following formula:

[0019]

[0020] Among them, T i Represents the value of the i-th point to be interpolated; Z(x i ) represents the value of the i-th sampling point; λ i It is represented as the influence parameter of the preset i-th sampling point on the interpolation point;

[0021] The coordinates of the points to be interpolated are calculated according to the values ​​of the interpolation points, and a three-dimensional geological body model without faults is generated according to the coordinates of the points to be interpolated.

[0022] According to an embodiment of the present invention, the target fracture body is constructed by dividing the target fracture body into zones using the fracture body external contour model to obtain a fracture body double-zone structure model consisting of a broken zone and a crack zone, including:

[0023] Performing internal structure recognition on the target fracture body according to the external contour of the fracture body to obtain structural information;

[0024] Performing structural characterization on the target fracture body according to the structural information to obtain characterization data;

[0025] A fracture zone model and a crack zone model of the target fracture body are respectively established according to the characterization data to obtain a fracture body double-zone structure model of the target fracture body.

[0026] According to an embodiment of the present invention, the method of grading the cracks of the target fracture body according to the fracture body double-band structure model to obtain the fracture scales of the fracture zone and the fracture zone includes:

[0027] Performing core analysis on the cracks of the target fracture body according to the double-band structure model to obtain a scale rule;

[0028] The crack levels of the target fracture body are identified according to the scale rule to obtain the crack scales of the fracture zone and the fracture zone.

[0029] According to an embodiment of the present invention, constructing a discrete fracture model of the target fracture body according to the fracture scales of the fracture zone and the fracture zone includes:

[0030] Establishing a fracture constraint of the target fracture body according to the fracture scales of the fracture zone and the fracture zone;

[0031] A discrete crack model of the target fracture body is constructed according to the crack constraint body.

[0032] In a second aspect, an embodiment of the present invention provides a device for modeling a fracture body with different zones and levels, characterized in that it comprises:

[0033] A contour carving module is used to obtain a target fracture body, and to perform contour carving on the target fracture body to obtain an external contour model of the fracture body;

[0034] A double-band structure model construction module is used to construct the target fault body in zones using the external contour model of the fault body, so as to obtain a double-band structure model of the fault body consisting of a broken zone and a crack zone;

[0035] A crack classification module, used to classify the cracks of the target fracture body according to the double-band structure model of the fracture body, and obtain the crack scales of the broken zone and the fracture zone;

[0036] The discrete fracture model construction module is used to construct a discrete fracture model of the target fracture body according to the fracture scales of the fracture zone and the fracture zone.

[0037] In a third aspect, an embodiment of the present invention provides an electronic device, comprising:

[0038] processor;

[0039] a memory for storing instructions executable by the processor;

[0040] Wherein, the processor is configured to execute the instructions to implement a banded and graded fracture body modeling method as described in the first aspect.

[0041] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a method for modeling a fracture body with different zones and levels as described in the first aspect.

[0042] In a fifth aspect, an embodiment of the present invention provides a computer program, characterized in that when the program is executed by a processor, a method for modeling a fracture body with different zones and levels as described in the first aspect is implemented.

[0043] Compared with the prior art, the above technical solution of the present invention has the following beneficial effects:

[0044] The embodiment of the present invention obtains a deterministic model of the target fault body by contour carving of the target fault body, thereby improving the accuracy of the model; a double-band structure model of the target fault body is constructed using the external contour of the fault body, the geological information of the target fault body is integrated, the development characteristics of the fractures are characterized, and the uncertainty of fracture prediction is reduced; a discrete fracture model of the target fault body is constructed according to the fracture scales of the broken zone and the fracture zone, and a modeling method combining determinism and randomness is adopted to establish discrete fracture models of different zones and different levels of the fault body, which can accurately describe and predict the spatial distribution characteristics and laws of natural fractures in the target fault body reservoir, and can be widely applied to the field of fracture modeling of fault bodies and fracture-type reservoirs controlled by faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] 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.

[0046] Figure 1 A flowchart showing the method for modeling a fracture body with different zones and levels according to the first embodiment of the present invention is shown;

[0047] Figure 2 A schematic diagram showing the structure of the fracture body double-belt structure model of the first embodiment of the present invention is shown;

[0048] Figure 3 A schematic diagram showing the structure of a discrete crack model of a fracture body according to the first embodiment of the present invention is shown;

[0049] Figure 4 The functional module diagram of the device for modeling a fracture body with different zones and levels according to the third embodiment of the present invention is shown;

[0050] Figure 5 A schematic diagram of the composition structure of an electronic device for implementing the banded and graded fracture body modeling method according to the fourth embodiment of the present invention is shown. DETAILED DESCRIPTION

[0051] The present disclosure is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0052] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0053] The present invention proposes a zoning and grading fault body modeling method, which performs contour carving on a target fault body to obtain a deterministic model of the target fault body, thereby improving the accuracy of the model; a double-band structure model of the target fault body is constructed using the external contour of the fault body, which integrates the geological information of the target fault body, characterizes the development characteristics of the fractures, and reduces the uncertainty of fracture prediction; a discrete fracture model of the target fault body is constructed according to the fracture scales of the broken zone and the fracture zone, and a modeling method combining determinism and randomness is adopted to establish discrete fracture models of different zones and different levels of the fault body, which can accurately describe and predict the spatial distribution characteristics and laws of natural fractures in the target fault body reservoir, and can be widely applied to the field of fracture modeling of fault bodies and fracture-type reservoirs controlled by faults.

[0054] Embodiment 1

[0055] like Figure 1 As shown, the present invention proposes a method for modeling a fracture body with different zones and levels, comprising the following steps:

[0056] S1. Obtain a target fracture body, and perform contour carving on the target fracture body to obtain an external contour model of the fracture body.

[0057] In the embodiment of the present invention, the target fault body is mainly composed of faults and fractures, based on the top surface fault of Chang 8 section of Jinghe Oilfield and a detailed interpretation basis for the target fault body data.

[0058] In the embodiment of the present invention, the step of performing contour carving on the target fracture body to obtain an external contour model of the fracture body includes:

[0059] Reconstructing the surface of the target fault body to obtain a three-dimensional geological body model without faults;

[0060] Cutting the non-fault three-dimensional geological body model according to the fault data of the target fault body to obtain the fault position of the target fault body;

[0061] The non-fault three-dimensional geological body model is adjusted according to the fault position to obtain a fault body external contour model.

[0062] In the embodiment of the present invention, the reconstruction of the stratigraphic surface does not first consider the existence of faults, and first performs three-dimensional geological modeling based on the data obtained by sampling. The commercial modeling software Petrel2018 can be used and Geometricalmodeling (three-dimensional modeling method) can be used for modeling. After the model is established, the fault-free three-dimensional geological body model is cut according to the sampled fault data to obtain position information. Finally, the fault data, including fault type, fault distance and inclination, is used to adjust the angle and fault position of the fault-free three-dimensional geological body model to obtain the external contour model of the fault body, that is, the deterministic model of the target fault body.

[0063] In the embodiment of the present invention, the step of reconstructing the surface of the target fault body to obtain a three-dimensional geological body model without faults includes:

[0064] Performing stratigraphic division on the target fracture body to obtain stratigraphic sampling point data;

[0065] Performing interpolation calculation on the target fracture body according to the formation sampling point data to obtain the value of the interpolation point;

[0066] The coordinates of the points to be interpolated are calculated according to the values ​​of the interpolation points, and a three-dimensional geological body model without faults is generated according to the coordinates of the points to be interpolated.

[0067] In an embodiment of the present invention, before reconstructing the stratigraphic surface, it is first necessary to divide the target fracture body into strata. For example, based on all the data information about the target fracture body in the model building area, the data information of the upper and lower interfaces of a bottom layer is stored in a txt text file, that is, the stratigraphic sampling point data, including the three-dimensional coordinates of the sampling point data; if there are two adjacent strata A and B, and stratum A is above stratum B, and the lower interface of stratum A and the upper interface of stratum B overlap, then it is only necessary to generate a txt text file for the overlapping interface of the two.

[0068] In the embodiment of the present invention, after the stratigraphic division is completed, the divided stratigraphic layers are reconstructed. Since the number and information of the sampling points of the target fracture body are limited and rough, it is difficult to accurately describe the information of the entire stratigraphic layer and the approximate shape of the stratigraphic layer by directly reconstructing the stratigraphic layer using the sampling points. Therefore, it is necessary to perform interpolation processing on the data collected according to the sampling points. The regionalized variables in the interpolation area can be estimated through models such as covariance function and variation function, for example, the Kriging algorithm. The Kriging algorithm not only considers the influence of the sampling points on the interpolation points, but also considers the mutual influence between the interpolation points, thereby increasing the accuracy of the reconstruction of the stratigraphic layer surface.

[0069] In the embodiment of the present invention, the target fracture body is interpolated and calculated using the following formula:

[0070]

[0071] Among them, T i Represents the value of the i-th point to be interpolated; Z(x i ) represents the value of the i-th sampling point; λ i It is represented as the influence parameter of the preset i-th sampling point on the interpolation point.

[0072] S2. Using the external contour model of the fracture body, the target fracture body is divided into zones and constructed to obtain a double-zone structure model of the fracture body consisting of a broken zone and a crack zone.

[0073] In the embodiment of the present invention, the target fracture body is constructed by dividing the target fracture body into zones using the fracture body external contour model to obtain a fracture body double-zone structure model consisting of a broken zone and a crack zone, including:

[0074] Performing internal structure recognition on the target fracture body according to the external contour of the fracture body to obtain structural information;

[0075] Performing structural characterization on the target fracture body according to the structural information to obtain characterization data;

[0076] A fracture zone model and a crack zone model of the target fracture body are respectively established according to the characterization data to obtain a fracture body double-zone structure model of the target fracture body.

[0077] In an embodiment of the present invention, the structural information includes a section filling zone located in the middle of the target fracture body and section crack zones located on both sides of the section filling zone, wherein the section filling zone is connected to the outer side of the section crack zone.

[0078] In an embodiment of the present invention, structural characterization can be performed on the target fault body by using the acoustic time difference of the horizontal rise section of the horizontal well in the area and the method of interpreting the porosity size through logging; the characterization data includes seismic attribute intensity change data and the extension distance of the fault plane on both sides. For example, the broken zone and the fracture zone of the target fault body are developed on both sides of the strike-slip fault. The width of the broken zone is generally within 50m on both sides of the fault core, and the fracture zone extends outward beyond 50m from the fault core. The overall width is between 50m and 200m, and can reach more than 600m locally. Finally, the commercial modeling software Petrel2018 is used to establish a model of the broken zone and the fracture zone of the target fault body by using the Geometrical modeling method, which is the double-zone structural model of the fault body, as shown in FIG. Figure 2 shown.

[0079] S3. Classifying the cracks in the target fault body according to the double-band structure model of the fault body to obtain the crack scales of the broken zone and the crack zone.

[0080] In the embodiment of the present invention, the classification of the cracks in the target fracture body according to the fracture body double-band structure model to obtain the fracture scales of the fracture zone and the fracture zone includes:

[0081] Performing core analysis on the cracks of the target fracture body according to the double-band structure model to obtain a scale rule;

[0082] The crack levels of the target fracture body are identified according to the scale rule to obtain the crack scales of the fracture zone and the fracture zone.

[0083] In an embodiment of the present invention, core analysis can adopt a cross-dipole array acoustic logging technology, and acoustic testing can be performed on the cracks of the target fault body according to the data of the dual-band structure model, so as to accurately obtain logging data such as formation longitudinal waves, shear waves, Stoneley wave fullness and acoustic wave amplitude. According to the logging data, the fast and slow shear waves of the formation can be separated, the percentage anisotropy can be quantitatively calculated, and the fracture development section and type of the target fault body can be identified. This technology has the characteristics of high resolution and visibility.

[0084] In the implementation of the present invention, the scale rules include: the key parameters for quantitatively characterizing cracks include two parameters: crack length and crack aperture. Through core analysis, imaging logging interpretation, field outcrop measurement and literature research, the large-scale crack length can be set to be between 100 and 200 meters, and the aperture can be between 0.5 mm and 1 mm; the length of the mesoscale crack is between 10 and 100 meters, and the crack aperture is between 0.05 mm and 0.5 mm; the broken zone includes large-scale cracks and mesoscale cracks, and the lithology classification in the large-scale cracks and the mesoscale cracks contains sandstone and mudstone; the fracture zone includes large-scale cracks and mesoscale cracks, and the lithology classification in the large-scale cracks contains sandstone and mudstone, and the lithology classification in the mesoscale cracks contains only sandstone.

[0085] S4. Constructing a discrete fracture model of the target fracture body according to the fracture scales of the fracture zone and the fracture zone.

[0086] In the embodiment of the present invention, the discrete fracture model of the target fracture body is constructed according to the fracture scales of the fracture zone and the fracture zone, including:

[0087] Establishing a fracture constraint of the target fracture body according to the fracture scales of the fracture zone and the fracture zone;

[0088] A discrete crack model of the target fracture body is constructed according to the crack constraint body.

[0089] In an embodiment of the present invention, the fracture constraint includes a fracture occurrence constraint, a fracture density constraint and a lithofacies constraint; the fracture occurrence constraint is mainly divided into two parts: a fracture strike constraint and a fracture dip constraint; the fracture strike constraint can be established by analyzing the fault strike in the fracture study area, mainly in the near east-west direction, based on the stress trace, the maximum principal stress to which the stress trace is substantially parallel near the fault, that is, the fault strike direction, as the distance from the fault increases, the stress trace gradually deflects or turns under the influence of other faults, therefore, the Fisher cross-section with average azimuth and discreteness as control parameters can be used to analyze the spatial distribution of the fracture azimuth, and generate a spatial fracture strike constraint in a three-dimensional geological grid, the fracture dip constraint can be generated by analyzing the fault dip angle of the target fault body, sampling the fault dip angle into the three-dimensional geological grid, and generating a fracture dip constraint in the three-dimensional geological grid.

[0090] In an embodiment of the present invention, the fracture density constraint body is a fusion body of multiple seismic attributes (including coherence attribute body, maximum likelihood attribute body and seismic structure tensor attribute body) that are sensitive to fractures, which can be calculated by the relationship formula between the fracture density on the core of the target fault body and the fault distance; the lithofacies constraint body is a lithofacies model, which is mainly based on the collaborative constraints of seismic inversion and the guidance of sedimentary phases, and a reasonable variation function is set according to the source direction and data analysis, and is simulated using the Sequential indicator simulation (SIS) method.

[0091] In an embodiment of the present invention, constructing a discrete fracture model of a fault body includes: for a broken zone, a deterministic method is used to construct a fracture model on the fault plane, and large-scale fractures and mesoscale fractures are based on seismic fractures, and the fracture density body predicted by seismic prediction and the fracture occurrence body analyzed by fault model are collaboratively constrained, and a discrete fracture network modeling method is used to establish fracture models; for a fracture zone, the modeling idea of ​​large-scale fractures is consistent with the large-scale fracture modeling method of the broken zone. When constructing mesoscale fractures, the mudstone formation is filtered out by the lithofacies filtering method under the coupling of the lithofacies model, and the mesoscale fracture model is established only in the sandstone formation by the discrete fracture network modeling method; finally, the different scale fracture models of the dual-belt structure model are merged to obtain discrete fracture models of different levels of the 8-segment long fracture body in the Jinghe 55 well area of ​​the Jinghe Oilfield, such as Figure 3 shown.

[0092] Embodiment 2

[0093] In order to understand the present invention more clearly, a second embodiment is used below to further explain the case where a discrete fracture model of the target fracture body is constructed according to the fracture scales of the fracture zone and the fracture zone.

[0094] In the embodiment of the present invention, the discrete fracture model of the target fracture body is constructed according to the fracture scales of the fracture zone and the fracture zone, including:

[0095] Establishing a fracture constraint of the target fracture body according to the fracture scales of the fracture zone and the fracture zone;

[0096] Performing correlation analysis on the crack constraint to obtain constraint conditions;

[0097] The target fracture body is modeled according to the constraint conditions to obtain the discrete fracture model.

[0098] In an embodiment of the present invention, the fracture constraint includes a fracture occurrence constraint, a fracture density constraint and a lithofacies constraint; the fracture occurrence constraint is mainly divided into two parts: a fracture strike constraint and a fracture dip constraint; the fracture strike constraint can be established by analyzing the fault strike in the fracture study area, mainly in the near east-west direction, based on the stress trace, the maximum principal stress to which the stress trace is substantially parallel near the fault, that is, the fault strike direction, as the distance from the fault increases, the stress trace gradually deflects or turns under the influence of other faults, therefore, the Fisher cross-section with average azimuth and discreteness as control parameters can be used to analyze the spatial distribution of the fracture azimuth, and generate a spatial fracture strike constraint in a three-dimensional geological grid, the fracture dip constraint can be generated by analyzing the fault dip angle of the target fault body, sampling the fault dip angle into the three-dimensional geological grid, and generating a fracture dip constraint in the three-dimensional geological grid.

[0099] In an embodiment of the present invention, the fracture density constraint body is a fusion body of multiple seismic attributes (including coherence attribute body, maximum likelihood attribute body and seismic structure tensor attribute body) that are sensitive to fractures, which can be calculated by the relationship formula between the fracture density on the core of the target fault body and the fault distance; the lithofacies constraint body is a lithofacies model, which is mainly based on the collaborative constraints of seismic inversion and the guidance of sedimentary phases, and a reasonable variation function is set according to the source direction and data analysis, and is simulated using the Sequential indicator simulation (SIS) method.

[0100] In an embodiment of the present invention, the constraint condition is based on the fracture density constraint in the fracture constraint body, and the negative correlation between the fracture density and the distance between the target fault body is used as a connection, and the spatial fracture density constraint body far from the fault is used as a constraint condition for the spatial distribution of the fracture; at the same time, the spatial fracture occurrence is spatially distributed using the fault strike and dip angle to constrain the spatial distribution, and the Fisher distribution principle (Fisher discriminant positive conversion) can be used as a control condition, and the discrete fracture network modeling technology can be used to generate a fault-related natural fracture model in the study area.

[0101] Embodiment 3

[0102] like Figure 4 As shown, this embodiment also provides a functional module diagram of a banded and graded fracture body modeling device.

[0103] The banded and graded fracture body modeling device 400 described in this embodiment can be installed in an electronic device. According to the functions to be implemented, the banded and graded fracture body modeling device 400 may include a contour carving module 401, a double-band structure model building module 402, a crack grading module 403, and a discrete crack model building module 404. The module described in the present invention can also be called a unit, which refers to a series of computer program segments that can be executed by an electronic device processor and can complete fixed functions, which are stored in the memory of the electronic device.

[0104] In this embodiment, the functions of each module / unit are as follows:

[0105] The contour carving module 401 is used to obtain a target fracture body, perform contour carving on the target fracture body, and obtain an external contour model of the fracture body;

[0106] The dual-band structure model construction module 402 is used to construct the target fracture body by using the fracture body external contour model to obtain a dual-band structure model of the fracture body consisting of a broken zone and a crack zone;

[0107] The crack classification module 403 is used to classify the cracks of the target fracture body according to the double-band structure model to obtain the crack scales of the broken zone and the crack zone;

[0108] The discrete fracture model building module 404 is used to build a discrete fracture model of the target fracture body according to the fracture scales of the fracture zone and the fracture zone.

[0109] In detail, each module described in the banded and graded fracture body modeling device 400 described in the embodiment of the present invention adopts the same technical means as the banded and graded fracture body modeling method described in Example 1 and Example 2 when used, and can produce the same technical effects, which will not be repeated here.

[0110] Embodiment 4

[0111] like Figure 5 As shown, this embodiment also provides a computer electronic device, which may include a processor 500, a memory 501, a communication bus 502 and a communication interface 503, and may also include a computer program stored in the memory 502 and executable on the processor 501, such as a banded and graded fracture body modeling program.

[0112] In some embodiments, the processor 501 may be composed of an integrated circuit, for example, a single packaged integrated circuit, or a plurality of packaged integrated circuits with the same or different functions, including one or more central processing units (CPUs), microprocessors, digital processing chips, graphics processors, and combinations of various control chips. The processor 501 is the control core (ControlUnit) of the electronic device, and uses various interfaces and lines to connect various components of the entire electronic device, and executes various functions and processes data of the electronic device by running or executing programs or modules stored in the memory 502 (for example, executing a banded and graded fracture body modeling program, etc.), and calling data stored in the memory 502.

[0113] The memory 502 includes at least one type of readable storage medium, and the readable storage medium includes flash memory, mobile hard disk, multimedia card, card-type memory (for example: SD or DX memory, etc.), magnetic memory, disk, optical disk, etc. In some embodiments, the memory 502 can be an internal storage unit of an electronic device, such as a mobile hard disk of the electronic device. In other embodiments, the memory 502 can also be an external storage device of an electronic device, such as a plug-in mobile hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card, etc. equipped on the electronic device. Further, the memory 502 can also include both an internal storage unit of the electronic device and an external storage device. The memory 502 can not only be used to store application software and various types of data installed in the electronic device, such as the code of the banded and graded fracture body modeling program, but also can be used to temporarily store data that has been output or is to be output.

[0114] The communication bus 503 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc. The bus is configured to realize connection and communication between the memory 502 and at least one processor 501, etc.

[0115] The communication interface 504 is used for communication between the above-mentioned electronic device and other devices, including a network interface and a user interface. Optionally, the network interface may include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is generally used to establish a communication connection between the electronic device and other electronic devices. The user interface may be a display (Display), an input unit (such as a keyboard (Keyboard)), and optionally, the user interface may also be a standard wired interface, a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode, organic light-emitting diode) touch device, etc. Among them, the display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the electronic device and to display a visual user interface.

[0116] The figure only shows an electronic device 500 with components. Those skilled in the art will understand that the structure shown in the figure does not constitute a limitation on the electronic device, and may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0117] For example, although not shown, the electronic device 500 may also include a power source (such as a battery) for supplying power to each component. Preferably, the power source may be logically connected to the at least one processor 501 through a power management device, so that the power management device can realize functions such as charging management, discharging management, and power consumption management. The power source may also include any components such as one or more DC or AC power sources, recharging devices, power failure detection circuits, power converters or inverters, and power status indicators. The electronic device may also include a variety of sensors, Bluetooth modules, Wi-Fi modules, etc., which will not be repeated here.

[0118] It should be understood that the embodiment is for illustration only and the scope of the patent application is not limited to this structure.

[0119] The banded and graded fracture body modeling program stored in the memory 502 of the electronic device 500 is a combination of multiple instructions. When executed in the processor 501, the following can be achieved:

[0120] Acquire a target fracture body, and perform contour carving on the target fracture body to obtain an external contour model of the fracture body;

[0121] The target fault body is constructed by dividing the target fault body into zones using the fault body external contour model to obtain a double-zone structure model of the fault body consisting of a broken zone and a crack zone;

[0122] Classifying the cracks in the target fault body according to the double-band structure model of the fault body to obtain the crack scales of the broken zone and the crack zone;

[0123] A discrete fracture model of the target fracture body is constructed according to the fracture scales of the fracture zone and the fracture zone.

[0124] Specifically, the specific implementation method of the processor 501 for the above instructions can refer to the description of the relevant steps in the corresponding embodiment of the accompanying drawings, which will not be repeated here.

[0125] Furthermore, if the module / unit integrated in the electronic device 500 is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. The computer-readable storage medium can be volatile or non-volatile. For example, the computer-readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a USB flash drive, a mobile hard disk, a magnetic disk, an optical disk, a computer memory, and a read-only memory (ROM).

[0126] Embodiment 5

[0127] This embodiment provides a storage medium storing a computer program. When the computer program is executed by a processor, the steps of the method for modeling a fracture body with different zones and levels as described above are implemented.

[0128] These program codes can also be loaded onto a computer or other programmable data processing device so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions executed on the computer or other programmable device for implementing the process. Figure 1 The steps of a specified function in a process or multiple processes.

[0129] Storage media include permanent and non-permanent, removable and non-removable media, and can be implemented by any method or technology to store information. Information can be computer-readable instructions, data structures, modules of programs or other data. Examples of storage media can include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices or any other non-transmission medium that can be used to store information that can be accessed by a computing device.

[0130] Embodiment 6

[0131] A computer program, characterized in that when the computer program is executed by a processor of an electronic device, it can achieve:

[0132] Acquire a target fracture body, and perform contour carving on the target fracture body to obtain an external contour model of the fracture body;

[0133] The target fault body is constructed by dividing the target fault body into zones using the fault body external contour model to obtain a double-zone structure model of the fault body consisting of a broken zone and a crack zone;

[0134] Classifying the cracks in the target fault body according to the double-band structure model of the fault body to obtain the crack scales of the broken zone and the crack zone;

[0135] A discrete fracture model of the target fracture body is constructed according to the fracture scales of the fracture zone and the fracture zone.

[0136] A computer program is a set of instructions that a computer can recognize and execute, and runs on an electronic computer. It is written in a programming language and runs on a target architecture. In order for a computer program to run, the computer needs to load code and data. From the bottom layer of the computer, this is a high-level language (such as Java, C / C++, C#, etc.) code translated into machine language and understood by the CPU for loading. If on a computer that meets most standards, an operating system such as Windows, Linux, etc., loads and executes many programs, in this case, each program is a separate mapping, not all executable programs on the computer. A computer program refers to a coded instruction sequence that can be executed by a computer or other device with information processing capabilities in order to obtain a certain result, or a symbolic instruction sequence or symbolic statement sequence that can be automatically converted into a coded instruction sequence.

[0137] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. When the terms "include" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0138] It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or described herein.

[0139] In the several embodiments provided by the present invention, it should be understood that the disclosed devices, apparatuses and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the modules is only a logical function division, and there may be other division methods in actual implementation.

[0140] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0141] In addition, each functional module in each embodiment of the present invention may be integrated into one processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of hardware plus software functional modules.

[0142] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

[0143] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any attached figure mark in the claims should not be regarded as limiting the claims involved.

[0144] The embodiments of the present application can acquire and process relevant data based on artificial intelligence technology. Among them, artificial intelligence (AI) is the theory, method, technology and application system that uses digital computers or machines controlled by digital computers to simulate, extend and expand human intelligence, perceive the environment, acquire knowledge and use knowledge to obtain the best results.

[0145] In addition, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices stated in the system claim can also be implemented by one unit or device through software or hardware. The words first, second, etc. are used to indicate names, and do not indicate any particular order.

[0146] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A method for modeling a fracture body with different zones and levels, characterized in that: The method comprises: Acquire a target fracture body, and perform contour carving on the target fracture body to obtain an external contour model of the fracture body; The target fault body is constructed by dividing the target fault body into zones using the fault body external contour model to obtain a double-zone structure model of the fault body consisting of a broken zone and a crack zone; Classifying the cracks in the target fault body according to the double-band structure model of the fault body to obtain the crack scales of the broken zone and the crack zone; A discrete fracture model of the target fracture body is constructed according to the fracture scales of the fracture zone and the fracture zone.

2. The method for modeling a fracture body with different zones and levels according to claim 1, characterized in that: The step of performing contour carving on the target fracture body to obtain an external contour model of the fracture body includes: Reconstructing the surface of the target fault body to obtain a three-dimensional geological body model without faults; Cutting the non-fault three-dimensional geological body model according to the fault data of the target fault body to obtain the fault position of the target fault body; The non-fault three-dimensional geological body model is adjusted according to the fault position to obtain a fault body external contour model.

3. The method for modeling a fracture body with different zones and levels according to claim 2, characterized in that: The step of reconstructing the surface of the target fault body to obtain a three-dimensional geological body model without faults includes: Performing stratigraphic division on the target fracture body to obtain stratigraphic sampling point data; Performing interpolation calculation on the target fracture body according to the formation sampling point data to obtain the value of the interpolation point; The target fracture body is interpolated using the following formula: Among them, T i Represents the value of the i-th point to be interpolated; Z(x i ) represents the value of the i-th sampling point; λ i It is represented as the influence parameter of the preset i-th sampling point on the interpolation point; The coordinates of the points to be interpolated are calculated according to the values ​​of the interpolation points, and a three-dimensional geological body model without faults is generated according to the coordinates of the points to be interpolated.

4. The method for modeling a fracture body with different zones and levels according to claim 1, characterized in that: The method of using the external contour model of the fracture body to construct the target fracture body in zones to obtain a fracture body double-zone structure model consisting of a broken zone and a crack zone includes: According to the external contour of the fracture body, the internal structure of the target fracture body is identified to obtain structural information; Performing structural characterization on the target fracture body according to the structural information to obtain characterization data; A fracture zone model and a crack zone model of the target fracture body are respectively established according to the characterization data to obtain a fracture body double-zone structure model of the target fracture body.

5. The method for modeling a fracture body with different zones and levels according to claim 1, characterized in that: The step of grading the cracks of the target fracture body according to the fracture body double-band structure model to obtain the fracture scales of the fracture zone and the fracture zone includes: Performing core analysis on the cracks of the target fracture body according to the double-band structure model to obtain a scale rule; The crack levels of the target fracture body are identified according to the scale rule to obtain the crack scales of the fracture zone and the fracture zone.

6. The method for modeling a fracture body with different zones and levels according to claim 1, characterized in that: The step of constructing a discrete fracture model of the target fracture body according to the fracture scales of the fracture zone and the fracture zone includes: Establishing a fracture constraint of the target fracture body according to the fracture scales of the fracture zone and the fracture zone; A discrete crack model of the target fracture body is constructed according to the crack constraint body.

7. A device for modeling a fractured body with different zones and levels, characterized in that: The device comprises: A contour carving module is used to obtain a target fracture body, and to perform contour carving on the target fracture body to obtain an external contour model of the fracture body; A double-band structure model construction module is used to construct the target fault body in zones using the external contour model of the fault body, so as to obtain a double-band structure model of the fault body consisting of a broken zone and a crack zone; A crack classification module, used to classify the cracks of the target fracture body according to the double-band structure model of the fracture body, and obtain the crack scales of the broken zone and the fracture zone; The discrete fracture model construction module is used to construct a discrete fracture model of the target fracture body according to the fracture scales of the fracture zone and the fracture zone.

8. An electronic device, comprising: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the banded and graded fracture body modeling method according to any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that: A computer program is stored thereon, and when the program is executed by a processor, the method for modeling a fracture body with zones and levels as described in any one of claims 1 to 6 is implemented.

10. A computer program, characterized in that When the program is executed by a processor, the method for modeling a fracture body with zones and levels as claimed in any one of claims 1 to 6 is implemented.

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