Stacked sand body boundary controllability modeling digital-analog method and system, storage medium and electronic equipment

Abstract

The invention relates to an overlaid sand body boundary controllability modeling digital-analog method and system, a storage medium and electronic equipment. The overlaid sand body boundary controllability modeling digital-analog method comprises the following steps: preparing data; on the basis of the data, carrying out superposition type sand body boundary controllability modeling; and carrying out superposition type sand body boundary controllability numerical model fitting on the basis of the data. According to the method, the development effect of an oil field can be further improved, three-dimensional interpretation of different types of boundaries is completed based on seismic configuration step-by-step modeling and density simulation joint inversion results and well-seismic combination on the basis of the sedimentary evolution law of an extremely thick reservoir, interpretation data of the different types of boundaries are obtained, and the method is suitable for large-scale production. A necessary basis is provided for representation and modeling of the internal boundary of the delta front huge thick reservoir, and effective combination of a geologic model and a numerical simulation model is achieved.

Description

Technical Field

[0001] The invention relates to the field of complex superimposed sand body boundary property modeling and digital modeling, and more specifically to a superimposed sand body boundary controllability modeling digital modeling method, system, storage medium and electronic equipment. Background Art

[0002] The deepwater and extremely thick delta front reservoirs have many vertical stages, the underwater distributary channels swing frequently in plane, and the sand bodies are complexly superimposed. Existing modeling technology cannot complete the comprehensive representation of the vertical evolution of reservoir sedimentation, the lateral migration law, and the position of the sand body boundary in the three-dimensional model. The geological model is difficult to accurately reflect the actual underground situation, resulting in oil and water and reservoir mutation problems in the development of horizontal wells. In the early and middle stages of development, problems such as low accuracy of reservoir numerical simulation, poor consistency between production dynamics and models, and difficulty in fitting pressure and water content are shown.

[0003] According to the research results, the existing modeling and numerical simulation methods still have the following deficiencies and limitations for composite superimposed sand bodies: First, the existing identification method based on plane attribute boundaries and the single characterization method of upright type cannot meet the characterization accuracy of various boundaries with different inclinations, different scales, and different seepage capacities within the thick composite sand body; second, the existing random phase modeling method is difficult to reflect the quantitative characterization results of reservoir configuration research; third, the controllability of different types of reservoir boundaries in the numerical simulation stage is poor, and it is difficult to combine geological models with numerical simulation models. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a digital modeling method, system, storage medium and electronic device for controllable modeling of the boundary of a superimposed sand body in view of the problems existing in the prior art.

[0005] The technical solution adopted by the present invention to solve the technical problem is to construct a numerical modeling method for controllable modeling of the boundary of a superimposed sand body, comprising the following steps:

[0006] Prepare data;

[0007] Based on the data, controllability modeling of the superimposed sand body boundary is performed;

[0008] Based on the data, a numerical model of controllability of the superimposed sand body boundary is fitted.

[0009] In the numerical modeling method for controllable modeling of superimposed sand body boundaries described in the present invention, the information data includes: target block well data, seismic three-dimensional data, inversion data body with identifiable boundaries, seismic plane attribute map, delta distributary channel, estuary dam reservoir sedimentary evolution phase map, three-dimensional model map, configuration dissection plane and profile map, grid and attribute distribution model of the target block, and actual dynamic data of production wells.

[0010] In the controllable modeling method of the superimposed sand body boundary according to the present invention, the controllable modeling of the superimposed sand body boundary based on the data includes:

[0011] Based on the estuary bar reservoir sedimentary deepening phase diagram, the three-dimensional model diagram, the configuration dissection plane and cross-sectional diagram, and the inversion data volume with identifiable boundaries, the boundaries between different single sand bodies are tracked and interpreted on the seismic inversion section to obtain the boundaries of different sand bodies;

[0012] Correcting the boundaries of the different sand bodies;

[0013] Based on the corrected boundaries of different sand bodies, surfaces with different boundaries are created;

[0014] After obtaining the surfaces of different boundaries, combining the delta distributary channel and the estuary bar reservoir sedimentary evolution phase diagram, a single distributary channel and estuary bar body are created;

[0015] The single distributary channel and the estuary bar are normalized to complete the controllability modeling of the superimposed sand body boundary.

[0016] In the controllable modeling method of superimposed sand body boundaries of the present invention, the correction of the boundaries of the different sand bodies includes:

[0017] Analyze the seismic plane attribute map to identify the direction and shape of the sand body boundary;

[0018] According to the plane migration law of a single river channel and the plane distribution characteristics of the diversion channel belt, the boundary morphology of the different sand bodies is corrected in the 3D seismic work area;

[0019] Analyze the boundary dip of sand bodies, vertical and lateral superposition relationship of single sand bodies based on well connections;

[0020] According to the sand body boundary inclination, the vertical and lateral superposition relationship of the single sand body, the sand body boundary inclination that has completed the morphological correction is corrected in the three-dimensional seismic work area.

[0021] In the controllable modeling method of the superimposed sand body boundary of the present invention, the creation of curved surfaces with different boundaries based on the corrected different sand body boundaries includes:

[0022] Based on the corrected boundaries of different sand bodies, surfaces with different boundaries are created under the constraints of well point boundary position correction and mudstone drilling thickness on the well.

[0023] In the controllable modeling method of the superimposed sand body boundary described in the present invention, after obtaining the curved surfaces of different boundaries, combining the delta distributary channel and the estuary bar reservoir sedimentary evolution phase diagram, creating a single distributary channel and estuary bar body includes:

[0024] Combined with the single well and single sand body thickness analysis of connected wells, the thickness and width of each single channel are determined under the constraints of multiple boundary surfaces;

[0025] According to the thickness of mudstone encountered in the well, the intersection grids between boundaries are assigned values ​​to determine the boundary scale of each single river channel;

[0026] Taking into account the width, depth and boundary scale of each distributary channel, the boundaries of each single sand body are successively assigned according to the superposition relationship under the control of the boundary to complete the creation of a single distributary channel and estuary dam.

[0027] In the numerical modeling method for controllable modeling of the boundary of a superimposed sand body described in the present invention, the fitting of the numerical model of controllable boundary of a superimposed sand body based on the data includes:

[0028] constructing an objective function based on actual performance data of the production well;

[0029] Determine the parameters that affect the objective function and perform sensitivity analysis to obtain the objective influencing parameters;

[0030] The target influencing parameters are processed by using Monte Carlo method and evolutionary strategy algorithm to obtain different parameter combinations;

[0031] Analyze the different parameter combinations and select a target parameter combination;

[0032] A target numerical model is determined based on the target parameter combination.

[0033] The present invention also provides a digital modeling system for controllable modeling of superimposed sand body boundaries, comprising:

[0034] A data preparation unit, used for preparing information data;

[0035] A modeling unit, used for modeling the controllability of the boundary of the superimposed sand body based on the data;

[0036] A numerical simulation unit is used to fit a numerical model of controllability of the superimposed sand body boundary based on the data.

[0037] The present invention also provides a storage medium storing a computer program, wherein the computer program is suitable for being loaded by a processor to execute the steps of the numerical modeling method for controllable modeling of the boundary of a superimposed sand body as described above.

[0038] The present invention also provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor executes the steps of the digital modeling method for controllable modeling of the boundary of a superimposed sand body as described above by calling the computer program stored in the memory.

[0039] The implementation of the numerical modeling method, system, storage medium and electronic device for controllable modeling of superimposed sand body boundaries of the present invention has the following beneficial effects: including the following steps: preparing data; modeling controllable superimposed sand body boundaries based on the data; fitting the numerical model of controllable superimposed sand body boundaries based on the data. The present invention can further improve the development effect of the oil field. On the basis of the sedimentary evolution law of the thick reservoir, based on the joint inversion results of seismic configuration step-by-step modeling and density simulation, the three-dimensional interpretation of different types of boundaries is completed by combining wells and seismic data, and the interpretation data of different types of boundaries are obtained, which provides the necessary basis for the characterization and modeling of the internal boundaries of the thick reservoir at the delta front, and realizes the effective combination of geological models and numerical simulation models. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0041] Figure 1 It is a schematic flow chart of a numerical modeling method for controllable modeling of superimposed sand body boundaries provided by the present invention;

[0042] Figure 2 It is a principle block diagram of the digital model system for controllable modeling of the superimposed sand body boundary provided by the present invention;

[0043] Figure 3 It is a boundary interpretation map of a certain area of ​​a certain oil field in an example of the present invention based on a seismic inversion section;

[0044] Figure 4 It is a boundary identification map of a certain area of ​​a certain oil field based on seismic plane attributes in an example of the present invention;

[0045] Figure 5 It is a model of different types of boundaries in a certain area of ​​a certain oil field in the example of the present invention;

[0046] Figure 6 It is a phase model of a certain area of ​​a certain oil field in an example of the present invention;

[0047] Figure 7 It is a normalized post-phase model of a diversion channel in a certain area of ​​a certain oil field in the present invention;

[0048] Figure 8 It is the numerical model fitting result of a certain area of ​​a certain oil field in an example of the present invention before and after the boundary characterization technology is used. DETAILED DESCRIPTION

[0049] 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.

[0050] The present invention is to integrate various research results of geophysics and geology, including different types of reservoir boundaries, different reservoir sand body scales, and realize the controllability simulation of digital model boundaries in the model at the same time, thereby greatly improving the matching degree between the geological model and the underground reservoir, and improving the speed and accuracy of the digital model. The digital modeling method and system for controllable modeling of superimposed sand body boundaries, based on the results of reservoir configuration anatomy, under the guidance of the vertical evolution and plane swing law of the reservoir, interprets different types of sand body boundaries by combining well seismic data to obtain the curved surface of each boundary. Under the constraint of the boundary, combined with the well connection analysis and the single well drilling thickness, the scale of each single river channel is corrected. According to the width-to-thickness ratio of each single distributary channel and the scale of the boundary, the attribute modeling of each distributary channel is completed respectively, and finally, according to the superposition relationship of each channel, the distributary channel and other configuration units are embedded in stages. Considering the multiple stages of the channel, the final phase model normalizes all channels and estuary bars respectively, retains different types of boundary attributes, and the channel is a unified attribute value.

[0051] Specifically, Figure 1 As shown, in a preferred embodiment, the numerical modeling method for controllable modeling of the superimposed sand body boundary includes the following steps:

[0052] Step S101: Prepare data.

[0053] Optionally, in an embodiment of the present invention, the information data includes: target block well data, seismic three-dimensional data, inversion data volume with identifiable boundaries, seismic plane attribute map, delta distributary channel, estuary bar reservoir sedimentary evolution phase map, three-dimensional model map, configuration dissection plane and profile map, grid and attribute distribution model of the target block, and actual dynamic data of production wells.

[0054] Step S102: Modeling the controllability of the superimposed sand body boundary based on the data.

[0055] In an embodiment of the present invention, controllable modeling of superimposed sand body boundaries based on data includes: tracking and interpreting the boundaries between different single sand bodies on the seismic inversion profile based on the estuary bar reservoir sedimentary deepening phase diagram, three-dimensional model diagram, configuration dissection plane and profile diagram, and inversion data body with identifiable boundaries, to obtain different sand body boundaries; correcting the boundaries of different sand bodies; creating surfaces of different boundaries based on the corrected different sand body boundaries; after obtaining the surfaces of different boundaries, creating a single distributary channel and estuary bar body in combination with the delta distributary channel and estuary bar reservoir sedimentary evolution phase diagram; normalizing the single distributary channel and estuary bar body to complete the controllable modeling of superimposed sand body boundaries.

[0056] Specifically, based on reservoir sedimentary evolution, three-dimensional model guidance, and configuration anatomy plane and profile diagrams, the boundaries between different single sand bodies are traced and interpreted on the seismic inversion profile. Among them, the configuration unit boundaries of the configuration plane diagram must be consistent with the seismic attribute boundaries.

[0057] Among them, the correction of different sand body boundaries includes: analyzing the seismic plane attribute map to identify the direction and shape of the sand body boundary; correcting the shape of different sand body boundaries in the three-dimensional seismic work area according to the plane migration law of a single river channel and the plane distribution characteristics of the diversion channel belt; analyzing the sand body boundary inclination, the vertical and lateral superposition relationship of a single sand body according to the well connection; correcting the sand body boundary inclination that has completed the shape correction in the three-dimensional seismic work area according to the sand body boundary inclination, the vertical and lateral superposition relationship of a single sand body. Specifically, identify the direction and shape of the sand body boundary on the seismic plane attribute map, and correct the interpreted sand body boundary shape in the three-dimensional seismic work area according to the plane migration law of a single river channel and the plane distribution characteristics of the diversion channel belt. Then, according to the sand body boundary inclination analyzed by the well connection, the vertical and lateral superposition relationship of a single sand body, the interpreted boundary inclination is corrected in the three-dimensional seismic work area.

[0058] In an embodiment of the present invention, based on the corrected different sand body boundaries, creating different boundary surfaces includes: based on the corrected different sand body boundaries, creating different boundary surfaces under the constraints of well point boundary position correction and mudstone drilling thickness on the well. Specifically, based on the sand body boundaries interpreted and corrected by seismic three-dimensional tracking, creating sand body boundary surfaces under the constraints of well point boundary position correction and mudstone drilling thickness on the well.

[0059] In an embodiment of the present invention, after obtaining surfaces with different boundaries, combining the sedimentary evolution phase diagram of the delta distributary channel and estuary dam reservoir, creating a single distributary channel and estuary dam body includes: combining the thickness analysis of single wells and connected wells single sand bodies, and determining the thickness and width of each single channel under the constraints of multiple boundary surfaces; assigning values ​​to the intersecting grids between boundaries according to the thickness of the mudstone encountered in the well, and determining the boundary scale of each single channel; comprehensively considering the width, depth, and boundary scale of each distributary channel, and completing the successive assignment of the boundaries of each single sand body according to the superposition relationship under the control of the boundary, so as to complete the creation of a single distributary channel and estuary dam body. Specifically, combined with the analysis of sand body thickness of single wells and connected wells, the thickness and width of each single channel are determined under the constraints of multiple boundary surfaces; according to the thickness of mudstone encountered on the well, the intersecting grids between boundaries are assigned values ​​to determine the boundary scale of each single channel; then, the width, depth and boundary scale of each distributary channel are integrated to set the width, thickness and boundary scale of each single sand body, and the boundaries of each single sand body are assigned successively according to the superposition relationship under the control of the boundary. Finally, the single distributary channel and estuary bar are normalized, that is, the sand bodies of different channels and estuary bars are normalized separately, and their respective boundaries still retain different attribute values, and finally the attribute model of reservoir and different boundary types is obtained.

[0060] Step S103: fitting a numerical model of controllability of the superimposed sand body boundary based on the data.

[0061] In an embodiment of the present invention, fitting a numerical model of controllability of the superimposed sand body boundary based on data includes: constructing an objective function based on actual dynamic data of production wells; determining parameters that affect the objective function and performing sensitivity analysis to obtain target influencing parameters; processing the target influencing parameters using a Monte Carlo method and an evolutionary strategy algorithm to obtain different parameter combinations; analyzing different parameter combinations to screen out a target parameter combination; and determining a target numerical model based on the target parameter combination.

[0062] Specifically, first establish the objective function, that is, based on dynamic data, such as daily oil production, water content and bottom flow as error measurement independent variables, construct the objective function. Then perform the influencing parameter optimization and sensitivity analysis, that is, select the parameters that affect the objective function, such as boundary main range, boundary secondary range, boundary permeability, residual oil saturation, water body energy, water invasion index and other parameters, and combine geological knowledge to give the possible minimum and maximum values ​​of different parameters. By analyzing the range of influence of each variable (i.e. parameter) on the result, the relative size of sensitivity is judged, and finally the target influencing parameter is selected. Then perform parameter optimization and model optimization, that is, use the Monte Carlo method and evolutionary strategy algorithm to process the target influencing parameters, obtain different parameter combinations, and then summarize and select the optimal parameter combination (i.e. target parameter combination) in multiple models, and finally obtain the final optimal model based on the optimal parameter combination, i.e. the target numerical model. Among them, the model corresponding to the optimal parameter combination is the final optimal model.

[0063] refer to Figure 2 , Figure 2 The invention provides a digital modeling system for controllable modeling of superimposed sand body boundaries.

[0064] Specifically, Figure 2 As shown, the numerical modeling system for controllability modeling of the superimposed sand body boundary includes:

[0065] The data preparation unit 201 is used to prepare information data.

[0066] The modeling unit 202 is used to perform controllability modeling of the superimposed sand body boundary based on the data.

[0067] The numerical simulation unit 203 is used to fit the controllability numerical model of the superimposed sand body boundary based on the data.

[0068] Specifically, the specific coordination operation process between the units in the digital modeling system for controllable modeling of the boundary of the superimposed sand body here can refer to the above-mentioned digital modeling method for controllable modeling of the boundary of the superimposed sand body, which will not be repeated here.

[0069] The present invention is described below in conjunction with specific examples.

[0070] The numerical modeling method and system for controllable modeling of complex superimposed sand body boundaries are applied in the thick delta front reservoir of the main oil field of the block. The block adopts the numerical modeling method for controllable modeling of complex superimposed sand body boundaries. The specific steps are as follows:

[0071] 1. Combine the seismic configuration frequency division modeling and density simulation joint inversion of the block, and complete the boundary interpretation of different sand body boundaries by combining well and seismic data, and improve the section reservoir configuration anatomy based on the interpretation results (see Figure 3 );

[0072] 2. Combine the seismic plane attributes of the block to identify the location and direction of the boundary, and conduct tracking interpretation and correction of the section interpretation results on the inversion section. Combine the seismic plane and section with the well connection to complete the reservoir configuration plane anatomy (see Figure 4 );

[0073] 3. Generate different boundary surfaces based on the interpretation results of different boundaries. The surfaces should represent the scale and tendency of the boundaries (see Figure 5 );

[0074] 4. According to the thickness of the mudstone encountered in the well, the intersection grids between the boundaries are assigned values ​​to determine the boundary scale of each single river channel; the width, depth and boundary scale of each diversion channel are integrated to set the width, thickness and boundary scale of each single sand body in the software, and the boundaries of each single sand body are assigned successively according to the superposition relationship under the control of the boundary (see Appendix). Figure 6 Finally, the different channel sand bodies and estuary bar sand bodies are normalized separately, and their respective boundaries still retain different attribute values, and finally the attribute model of reservoir and different boundary types is obtained (see Figure 7 ).

[0075] 5. Numerical modeling stage: When selecting parameters that affect the objective function, the boundary major range, boundary minor range, boundary permeability and other parameters are set based on the different types of boundary attribute values ​​of the geological model, and the possible minimum and maximum values ​​of different parameters are given in combination with geological knowledge. The relative size of sensitivity is judged by the range of influence of each variable on the result at different times. Finally, the Monte Carlo method and evolutionary strategy algorithm are used to obtain different parameter combinations. The optimal parameter combination is selected from multiple models, and the final optimal model is obtained based on the optimized parameter combination (see Figure 8 ).

[0076] This numerical modeling method and system for controllable modeling of complex superimposed sand body boundaries have been applied in the A oilfield in the thick delta front reservoir of a certain block. The fitting accuracy of the single well dynamics of the reservoir has been improved by 20%, and the characterization of the sand body boundaries is basically reasonable. Based on the project results, A oilfield will apply for adjustment of 5 wells in 2023, and the technically recoverable reserves of the entire oilfield will increase by more than 80%, creating economic benefits of more than 100 million yuan, with good economic benefits.

[0077] At present, most oil fields have a large number of delta sedimentary sand bodies with complex superposition relationships, and they are faced with technical difficulties in interface characterization in the early stage of development and the potential of residual oil in the middle and late stages of development. The complex superimposed sand body boundary controllable modeling numerical modeling method and system, which applies modeling technology of different types of boundary characterization and controllable boundary numerical modeling application technology, is an effective technical means for the efficient development of complex sand body superimposed sand body oil fields, and is also an inevitable technical development trend, with broad application prospects and promotion and application space.

[0078] In addition, an electronic device of the present invention includes a memory and a processor; the memory is used to store a computer program; the processor is used to execute the computer program to implement a numerical modeling method for controllable modeling of the boundary of a superimposed sand body as described in any one of the above. Specifically, according to an embodiment of the present invention, the process described with reference to the flowchart above can be implemented as a computer software program. For example, an embodiment of the present invention includes a computer program product, which includes a computer program carried on a computer-readable medium, and the computer program contains a program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed by an electronic device and when executed, it executes the above functions defined in the method of the embodiment of the present invention. The electronic device in the present invention can be a terminal such as a notebook, a desktop, a tablet computer, a smart phone, or a server.

[0079] In addition, a storage medium of the present invention stores a computer program thereon, and when the computer program is executed by a processor, the controllable modeling method of the boundary of the stacked sand body is implemented. Specifically, it should be noted that the storage medium of the present invention can be a computer-readable signal medium or a computer-readable storage medium or any combination of the above two. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples of computer-readable storage media can include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present invention, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it. In the present invention, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, device, or device. The program code contained on the computer-readable medium may be transmitted using any suitable medium, including but not limited to: wires, optical cables, RF (radio frequency), etc., or any suitable combination of the above.

[0080] The computer-readable medium may be included in the electronic device, or may exist independently without being incorporated into the electronic device.

[0081] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0082] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0083] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented directly using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0084] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot limit the scope of protection of the present invention. All equivalent changes and modifications made to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A numerical modeling method for controllable modeling of superimposed sand body boundaries, characterized in that: The following steps are involved: Prepare data; Based on the data, controllability modeling of the superimposed sand body boundary is performed; Based on the data, a numerical model of controllability of the superimposed sand body boundary is fitted.

2. The method for numerical modeling of controllable modeling of superimposed sand body boundaries according to claim 1 is characterized in that: The data include: target block well data, seismic three-dimensional data, inversion data volume with identifiable boundaries, seismic plane attribute map, delta distributary channel, estuary bar reservoir sedimentary evolution phase map, three-dimensional model map, configuration dissection plane and profile map, target block grid and attribute distribution model, and actual dynamic data of production wells.

3. The method for numerical modeling of controllable modeling of superimposed sand body boundaries according to claim 2 is characterized in that: The controllability modeling of the superimposed sand body boundary based on the data includes: Based on the estuary bar reservoir sedimentary deepening phase diagram, the three-dimensional model diagram, the configuration dissection plane and cross-sectional diagram, and the inversion data volume with identifiable boundaries, the boundaries between different single sand bodies are tracked and interpreted on the seismic inversion section to obtain the boundaries of different sand bodies; Correcting the boundaries of the different sand bodies; Based on the corrected boundaries of different sand bodies, surfaces with different boundaries are created; After obtaining the surfaces of different boundaries, combining the delta distributary channel and the estuary bar reservoir sedimentary evolution phase diagram, a single distributary channel and estuary bar body are created; The single distributary channel and the estuary bar are normalized to complete the controllability modeling of the superimposed sand body boundary.

4. The method for numerical modeling of controllable modeling of superimposed sand body boundaries according to claim 3 is characterized in that: The correction of the boundaries of the different sand bodies comprises: Analyze the seismic plane attribute map to identify the direction and shape of the sand body boundary; According to the plane migration law of a single river channel and the plane distribution characteristics of the diversion channel belt, the boundary morphology of the different sand bodies is corrected in the 3D seismic work area; Analyze the boundary dip of sand bodies, vertical and lateral superposition relationship of single sand bodies based on well connections; According to the sand body boundary inclination, the vertical and lateral superposition relationship of the single sand body, the sand body boundary inclination that has completed the morphological correction is corrected in the three-dimensional seismic work area.

5. The method for numerical modeling of controllable modeling of superimposed sand body boundary according to claim 3 is characterized in that: The method of creating curved surfaces with different boundaries based on different sand body boundaries after correction includes: Based on the corrected boundaries of different sand bodies, surfaces with different boundaries are created under the constraints of well point boundary position correction and mudstone drilling thickness on the well.

6. The method for numerical modeling of controllable modeling of superimposed sand body boundaries according to claim 3 is characterized in that: After obtaining the curved surfaces with different boundaries, combining the delta distributary channel and the estuary bar reservoir sedimentary evolution phase diagram to create a single distributary channel and estuary bar body includes: Combined with the single well and single sand body thickness analysis of connected wells, the thickness and width of each single channel are determined under the constraints of multiple boundary surfaces; According to the thickness of mudstone encountered in the well, the intersection grids between boundaries are assigned values ​​to determine the boundary scale of each single river channel; Taking into account the width, depth and boundary scale of each distributary channel, the boundaries of each single sand body are successively assigned according to the superposition relationship under the control of the boundary to complete the creation of a single distributary channel and estuary dam.

7. The method for numerical modeling of controllable modeling of superimposed sand body boundaries according to claim 2, characterized in that: The controllability numerical model fitting of the superimposed sand body boundary based on the data includes: constructing an objective function based on actual performance data of the production well; Determine the parameters that affect the objective function and perform sensitivity analysis to obtain the objective influencing parameters; The target influencing parameters are processed by using Monte Carlo method and evolutionary strategy algorithm to obtain different parameter combinations; Analyze the different parameter combinations and select a target parameter combination; A target numerical model is determined based on the target parameter combination.

8. A numerical modeling system for controllable modeling of superimposed sand body boundaries, characterized in that: include: A data preparation unit, used for preparing information data; A modeling unit, used for modeling the controllability of the boundary of the superimposed sand body based on the data; A numerical simulation unit is used to fit a numerical model of controllability of the superimposed sand body boundary based on the data.

9. A storage medium, characterized in that: The storage medium stores a computer program, and the computer program is suitable for being loaded by a processor to execute the steps of the numerical modeling method for controllable modeling of the boundary of a superimposed sand body as described in any one of claims 1 to 7.

10. An electronic device, characterized in that: It comprises a memory and a processor, wherein the memory stores a computer program, and the processor executes the steps of the digital modeling method for controllable modeling of the boundary of a superimposed sand body as claimed in any one of claims 1 to 7 by calling the computer program stored in the memory.

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