Method, device, storage medium and electronic device for determining a design of a plug structure

Abstract

The application provides a method, device, storage medium and electronic equipment for determining a plug structure design, the method comprising: obtaining each flow advantage parameter of a target flow advantage channel between an oil-water well; obtaining a flow evaluation coefficient corresponding to each flow advantage parameter according to a preset mapping relationship between a flow advantage parameter interval and an evaluation coefficient; obtaining an evaluation value of the target flow advantage channel based on each flow evaluation coefficient and a corresponding coefficient weight; determining a flow advantage channel development type of the target flow advantage channel according to a preset corresponding relationship between a flow advantage channel development type and an evaluation value; and obtaining a plug structure design corresponding to the determined flow advantage channel development type by querying a preset corresponding relationship between a flow advantage channel development type and a plug structure design. The plug structure can be optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of oil field development, and in particular to a method and device for determining a slug structure design, a storage medium and an electronic device. BACKGROUND

[0002] In the water injection development of an oil field, with the increase of water injection time, due to the difference in permeability of the formation, dominant channels are developed between oil and water wells, which leads to the strengthening of the water absorption heterogeneity of the oil layer, or the water absorption of a single layer, resulting in the ineffective circulation of injected water underground, or the flooding of oil wells, which cannot produce normally. As a leading technology for treating ineffective water injection and improving injection-production contradictions, profile control and flooding plays an important role in increasing production and stabilizing production in old oil fields. With the increase of the application scale of profile control and flooding and the increase of the treatment cycles, the potential of profile control and flooding in the near wellbore zone is reduced, and the difficulty of maintaining and improving the effect of conventional profile control and flooding is increasing. The development degree of the dominant channels between oil and water wells is one of the key factors for the design of deep profile control and flooding slug structure, therefore, accurately and quickly identifying the development degree of the dominant channels between oil and water wells, and then designing the targeted slug structure for different wells, has a significant impact on the success or failure of deep profile control and flooding.

[0003] The current method for designing the slug structure of deep profile control and flooding needs to test the breakthrough pressure of different profile control and flooding systems by physical model experiments, and the physical model experiments have low repeatability and long experimental period, which cannot meet the needs of the design of the slug structure of the dominant channels between wells for deep profile control and flooding. SUMMARY

[0004] Therefore, the present application provides a method and device for determining a slug structure design, a storage medium and an electronic device.

[0005] Specifically, the present application is realized by the following technical solutions:

[0006] According to a first aspect of the present application, a method for determining a slug structure design is provided, the method comprising:

[0007] obtaining each flow dominance parameter of a target water flow dominant channel between oil and water wells;

[0008] obtaining the water flow evaluation coefficient respectively mapped by each flow dominance parameter according to the mapping relationship between the pre-set water flow dominance parameter interval and the evaluation coefficient;

[0009] obtaining the evaluation value of the target water flow dominant channel based on each water flow evaluation coefficient and the corresponding coefficient weight;

[0010] determining the water flow dominant channel development type of the target water flow dominant channel according to the corresponding relationship between the pre-set water flow dominant channel development type and the evaluation value;

[0011] The development type of the water flow dominant channel is determined according to a preset corresponding relationship between the development type of the water flow dominant channel and the design of the plug structure.

[0012] The method for determining the design of the plug structure in the embodiment uses the water flow dominant parameters which are easy to obtain in the oilfield to evaluate the target water flow dominant channel, determines the development degree of the dominant channel according to the corresponding relationship between the development type of the water flow dominant channel and the evaluation value, and further determines the plug structure of the deep profile control in the well with different dominant channel development according to the historical profile control experience, so that the method has better accuracy and applicability.

[0013] According to a second aspect of the present application, a device for determining the design of the plug structure is provided, and the device for determining the design of the plug structure comprises:

[0014] A parameter acquisition module is configured to acquire each water flow dominant parameter of a target water flow dominant channel between an oil well and a water well.

[0015] An evaluation value calculation module is configured to acquire an evaluation value of the target water flow dominant channel based on each water flow evaluation coefficient and a corresponding coefficient weight.

[0016] An evaluation value calculation module is configured to acquire an evaluation value of the target water flow dominant channel based on each water flow evaluation coefficient and a corresponding coefficient weight.

[0017] A development type judgment module is configured to determine the development type of the water flow dominant channel of the target water flow dominant channel according to a preset corresponding relationship between the development type of the water flow dominant channel and the evaluation value.

[0018] A plug structure design module is configured to query a preset corresponding relationship between the development type of the water flow dominant channel and the design of the plug structure, and acquire the design of the plug structure corresponding to the determined development type of the water flow dominant channel.

[0019] According to a third aspect of the present application, a storage medium is provided, and the storage medium stores a computer program, and the program is executed by a processor to implement the steps of the method for determining the design of the plug structure in any possible implementation manner of the first aspect.

[0020] According to a fourth aspect of the present application, an electronic device is provided, and the electronic device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the method for determining the design of the plug structure in any possible implementation manner of the first aspect when executing the program. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings incorporated into the specification and forming a part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application.

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or related technical descriptions. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

[0023] Figure 1 A flowchart of a method for determining a plugging structure design provided by the embodiment of the present application is shown in the figure.

[0024] Figure 2 A schematic diagram of a processing device for determining a plugging structure design provided by the embodiment of the present application is shown in the figure.

[0025] Figure 3 A schematic diagram of the structure of an electronic device provided by the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0026] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the protection scope of the present application.

[0027] Referring to Figure 1 The embodiment of the present application provides a method for determining a plugging structure design, which can be applied to the plugging structure design of an interwell water flow dominant channel for deep profile control and flooding. The method can include the following steps:

[0028] S101, obtaining each water flow dominant parameter of a target water flow dominant channel between an oil-water well.

[0029] In the embodiment, as an optional embodiment, the water flow dominant parameters can be selected for subsequent evaluation according to the difficulty and completeness of the obtained field data. The water flow dominant parameters can include reservoir static parameters and production dynamic parameters.

[0030] In the embodiment, as an optional embodiment, the reservoir and development characteristics of the corresponding block between the oil-water well are considered, and the importance, representativeness of the water flow dominant parameters and the difficulty of obtaining field data are comprehensively considered. The permeability, porosity and pore throat radius can be selected as the reservoir static parameters, and the injection multiple, pressure index, fullness and water absorption strength can be selected as the production dynamic parameters.

[0031] S102, obtaining a water flow evaluation coefficient respectively mapped by each water flow dominant parameter according to a mapping relationship between a preset water flow dominant parameter interval and the evaluation coefficient;

[0032] In this embodiment, as an optional embodiment, the water flow dominant parameter values of the water flow dominant channels of the same development level are counted and analyzed according to the development levels of the historical water flow dominant channels, i.e., the water flow dominant channel development types, to obtain the water flow dominant parameter interval of the water flow dominant channels of the development level.

[0033] In this embodiment, different development levels represent different degrees of channeling.

[0034] In this embodiment, as an optional embodiment, the development levels of the dominant channels can include a severe development type of the dominant channel, a moderate development type of the dominant channel and a non-development type of the dominant channel.

[0035] In this embodiment, as an optional embodiment, the development types of the water flow dominant channels can be determined by counting the water flow dominant parameters (water flow dominant parameter values) collected in the block, selecting production dynamic parameters and reservoir static parameters, analyzing the change law of the selected production dynamic parameters and reservoir static parameters, determining the number of the development types of the water flow dominant channels according to the change law, and determining the water flow dominant parameter interval of each development type of the water flow dominant channels according to the counting and analyzing method. For example, according to the change law, the development types of the water flow dominant channels are classified into three different types, and the water flow dominant parameter interval (water flow dominant parameter value interval) corresponding to each type of the development type of the water flow dominant channel is obtained.

[0036] In this embodiment, since the value ranges of different water flow dominant parameters differ greatly, and the dimensions of the water flow dominant parameters are different, in order to represent the influence of the water flow dominant parameters on different development types of the water flow dominant channels, a corresponding evaluation coefficient is set for each water flow dominant parameter interval of each development type of the water flow dominant channel.

[0037] S103, obtaining an evaluation value of the target water flow dominant channel based on the water flow evaluation coefficients and the corresponding coefficient weights;

[0038] In this embodiment, different water flow dominant parameters have different influences on the development types of the water flow dominant channels, and therefore, the coefficient weights of each water flow dominant parameter are set according to the correlation between the development degree of the dominant channel and the water flow dominant parameter. As an optional embodiment, the influence of a water flow dominant parameter on the development of the water flow dominant channel can be determined by sequentially changing the value of the water flow dominant parameter while keeping the values of the other water flow dominant parameters unchanged, the influences of the water flow dominant parameters on the development of the water flow dominant channel are sorted, and the corresponding coefficient weights of the water flow dominant parameters are determined accordingly.

[0039] In the embodiment, the coefficient weight corresponding to each water flow advantage parameter and the water flow advantage parameter interval are shown in Table 1.

[0040] Table 1

[0041] Water flow advantage parameter coefficient weight severe development type mild type non-development type porosity 1 ≥21.8 19.6-21.8 ≤19.6 permeability 2 ≥1200 600-1200 ≤600 pore throat radius 1 ≥7.2 5.8-7.2 ≤5.8 water injection multiple 1 ≥2 1-2 ≤1 pressure index 1 ≤2 2-4 ≥4 filling degree 2 ≤0.2 0.2-0.5 ≥0.5 water absorption strength 2 ≥10 6-10 ≤6

[0042] In the embodiment, taking the permeability as an example, it is found through a large amount of statistics that, when the permeability is less than 600 mD, the reservoir permeability is small, and the water flow advantage channel is not formed, so the water flow advantage parameter interval (permeability interval) corresponding to the non-development type of the advantage channel is set to be less than or equal to 600 mD; when the permeability is between 600 mD and 1200 mD, the reservoir permeability is large, and the water flow advantage channel is likely to be formed, so the water flow advantage parameter interval (permeability interval) corresponding to the moderate development type of the advantage channel is set to be greater than 600 mD and less than 1200 mD; when the permeability is greater than 1200 mD, the reservoir permeability is very large, and the serious water flow advantage channel is easily formed under the continuous scouring of the injected water, so the water flow advantage parameter interval (permeability interval) corresponding to the serious development type of the advantage channel is set to be greater than or equal to 1200 mD.

[0043] In the embodiment, as an optional embodiment, taking the development type of the water flow advantage channel as an example, three types are set, the evaluation coefficient of the water flow advantage parameter interval corresponding to each development type of the water flow advantage channel is set, and the mapping relationship between the water flow advantage parameter interval and the evaluation coefficient is constructed. Taking the permeability as an example, the mapping relationship set is: the evaluation coefficient corresponding to the permeability interval (less than or equal to 600 mD) is 0, the evaluation coefficient of the permeability corresponding to the permeability interval (greater than 600 mD and less than 1200 mD) is 1, and the evaluation coefficient of the permeability corresponding to the permeability interval (greater than or equal to 1200 mD) is 2. For example, the permeability of a well is 400 mD, which is located in the permeability interval (less than or equal to 600 mD), and according to the mapping relationship between the water flow advantage parameter interval and the evaluation coefficient, the evaluation coefficient of the permeability corresponding to the permeability is 0; if the permeability is 850 mD, which is located in the permeability interval (600-1200) mD, according to the mapping relationship between the water flow advantage parameter interval and the evaluation coefficient, the evaluation coefficient of the permeability corresponding to the permeability is 1; if the permeability is 1400 mD, which is located in the permeability interval (greater than or equal to 1200 mD), according to the mapping relationship between the water flow advantage parameter interval and the evaluation coefficient, the evaluation coefficient of the permeability corresponding to the permeability is 2.

[0044] In the embodiment, as an optional embodiment, based on the water flow evaluation coefficient and the corresponding coefficient weight, the evaluation value of the target water flow advantage channel is obtained, including:

[0045] calculating a porosity product of a water flow evaluation coefficient of the porosity map and a porosity coefficient weight, a permeability product of a water flow evaluation coefficient of the permeability map and a permeability coefficient weight, a pore throat radius product of a water flow evaluation coefficient of the pore throat radius map and a pore throat radius coefficient weight, a water injection multiple product of a water flow evaluation coefficient of the water injection multiple map and a water injection multiple coefficient weight, a pressure index product of a water flow evaluation coefficient of the pressure index map and a pressure index coefficient weight, a fullness degree product of a water flow evaluation coefficient of the fullness degree map and a fullness degree coefficient weight, and a water absorption intensity product of a water flow evaluation coefficient of the water absorption intensity map and a water absorption intensity coefficient weight;

[0046] calculating a sum value of the porosity product, the permeability product, the pore throat radius product, the water injection multiple product, the pressure index product, the fullness degree product, and the water absorption intensity product to obtain the evaluation value of the target water flow dominant channel.

[0047] In this embodiment, as an optional embodiment, the evaluation value of each well is calculated.

[0048] In this embodiment, as an optional embodiment, the evaluation value of the target water flow dominant channel (the evaluation value of the well) is calculated by using the following formula:

[0049] F = F j ω j + F D ω D

[0050]

[0051] In the formula, i = j or D, F is the evaluation value of the target water flow dominant channel, which is dimensionless; F j is a comprehensive evaluation coefficient of the reservoir static parameters, which is dimensionless; F D is a comprehensive evaluation coefficient of the production dynamic parameters, which is dimensionless; ω j is the coefficient weight of the reservoir static parameters, which is dimensionless; ω D is the coefficient weight of the production dynamic parameters, which is dimensionless; F ki is the water flow evaluation coefficient of the kth water flow dominant parameter map, which is dimensionless; ω ki is the coefficient weight corresponding to the kth water flow dominant parameter, which is dimensionless.

[0052] In this embodiment, as an optional embodiment, the water flow evaluation coefficient and the coefficient weight can also be normalized respectively. In this embodiment, as an optional embodiment, taking the water flow evaluation coefficient as an example, the sum value of the water flow evaluation coefficients respectively mapped by each water flow dominant parameter is obtained, and for each water flow dominant parameter, the water flow evaluation coefficient of the water flow dominant parameter is divided by the sum value to obtain the normalized value of the water flow dominant parameter.

[0053] In this embodiment, the porosity coefficient weight, the permeability coefficient weight, the pore throat radius coefficient weight, the water injection multiple coefficient weight, the pressure index coefficient weight, the fullness coefficient weight, and the water absorption strength coefficient weight are normalized coefficient weights, and the sum of all the normalized coefficient weights is 1.

[0054] In this embodiment, according to the actual characteristics of the oil reservoir, through investigation and analysis, the water flow dominant channels under different geological and development conditions are divided into the following three types, which are: a severe dominant channel development type, a moderate dominant channel development type, and a non-dominant channel development type. Table 2 is a normalized evaluation value table of the development types of the water flow dominant channels obtained by normalizing Table 1.

[0055] Table 2

[0056] water flow advantage channel development type severe type mild type non-development type normalized score greater than 0.6 0.3-0.6 less than 0.3

[0057] In this embodiment, as an optional embodiment, after the normalized values of the water flow dominant parameters are determined, the normalized values of each injection well of the deep profile control can be obtained according to the normalized values. Table 3 is an evaluation value table of each deep profile control injection well in a block. Each deep profile control injection well corresponds to an evaluation value of a target water flow dominant channel.

[0058] Table 3

[0059] serial number profile control injection well normalized value 1 1# 4.5 2 2# 5.0 3 3# 5.5 4 4# 4.5 5 5# 2.5 6 6# 9.5 7 7# 9.0 8 8# 8.5

[0060] S104, determining the water flow dominant channel development type of the target water flow dominant channel according to the corresponding relationship between the water flow dominant channel development type and the evaluation value.

[0061] In this embodiment, as an optional embodiment, the scores of each deep profile control injection well can be normalized, and the relative development of the water flow dominant channel can be qualitatively judged according to the corresponding relationship between the water flow dominant channel development type and the evaluation value.

[0062] Table 4 is the normalized values of each deep profile control injection well and the water flow dominant channel development type determined according to the corresponding relationship based on Table 2 and Table 3.

[0063] Table 4

[0064]

[0065] S105, querying the corresponding relationship between the water flow dominant channel development type and the slug structure design, and obtaining the slug structure design corresponding to the determined water flow dominant channel development type.

[0066] As an optional embodiment in the embodiment, the development level of the dominant channel is determined according to the specific identification result (evaluation value of the target water flow dominant channel) of each deep profile control and flooding injection well, and the slug design of the deep profile control and flooding injection slug is designed for the dominant channel with different development levels. As an optional embodiment in the embodiment, the corresponding relationship between the development type of the water flow dominant channel and the specific slug structure design is as follows:

[0067] Severe development of the dominant channel: the "plugging + adjustment" slug structure is adopted, that is, the dominant channel is plugged first and then the high permeability strip is adjusted;

[0068] Moderate development of the dominant channel: the "adjustment + flooding" slug structure is adopted, that is, the high permeability strip is adjusted first and then the swept volume is expanded;

[0069] No development of the dominant channel: the "flooding" slug is adopted, that is, the displacement system is injected to expand the swept volume.

[0070] As an optional embodiment in the embodiment, the corresponding relationship and the slug structure design adopted by each deep profile control and flooding injection well are shown in Table 5.

[0071] Table 5

[0072]

[0073]

[0074] In the embodiment, each water flow dominant parameter of the target water flow dominant channel between the oil-water well is obtained; according to the mapping relationship between the water flow dominant parameter interval and the evaluation coefficient, the water flow evaluation coefficient corresponding to each water flow dominant parameter is obtained; based on each water flow evaluation coefficient and the corresponding coefficient weight, the evaluation value of the target water flow dominant channel is obtained; according to the corresponding relationship between the development type of the water flow dominant channel and the evaluation value, the development type of the water flow dominant channel of the target water flow dominant channel is determined; the corresponding relationship between the development type of the water flow dominant channel and the slug structure design is queried, and the slug structure design corresponding to the determined development type of the water flow dominant channel is obtained. In this way, by using the data easily obtained by the deep profile control and flooding injection well (between the oil-water well), the evaluation value of the target water flow dominant channel is obtained through simple and easy calculation, and the slug structure design is determined according to the corresponding relationship between the development type of the water flow dominant channel and the evaluation value and the corresponding relationship between the development type of the water flow dominant channel and the slug structure design. The accuracy of the identification result can be effectively improved, and the slug structure design can be adjusted according to the characteristics of different oilfield development blocks, which can be used for the optimization design of the interwell dominant channel slug structure of the deep profile control and flooding, and has better accuracy and applicability.

[0075] Based on the same inventive concept, as Figure 2As shown, the embodiment of the present application also provides a device for determining a plugging structure design, which comprises:

[0076] The parameter acquisition module 201 is configured to acquire each flow advantage parameter of the target flow advantage channel between the oil-water well.

[0077] In this embodiment, as an optional embodiment, the flow advantage parameters can be selected according to the difficulty and completeness of the obtained data, the reservoir and development characteristics of the block, and the importance and representativeness of the flow advantage parameters.

[0078] In this embodiment, as an optional embodiment, the flow advantage parameters can include reservoir static parameters and production dynamic parameters. The reservoir static parameters include porosity, permeability and pore throat radius, and the production dynamic parameters include injection multiple, pressure index, fullness and water absorption intensity.

[0079] The evaluation coefficient acquisition module 202 is configured to obtain the flow evaluation coefficient corresponding to each flow advantage parameter according to the mapping relationship between the flow advantage parameter interval and the evaluation coefficient.

[0080] In this embodiment, as an optional embodiment, the flow advantage parameter interval can be set in advance. As an optional embodiment, the flow advantage parameter values of the flow advantage channels of the same development level are counted and analyzed according to the development levels of the historical flow advantage channels, i.e., the flow advantage channel development types, to obtain the flow advantage parameter interval of the flow advantage channels of the development level. Different development levels represent different degrees of channeling.

[0081] In this embodiment, as an optional embodiment, the development level of the advantage channel can include a severe development type, a moderate development type and a non-development type.

[0082] In this embodiment, as an optional embodiment, the variation law of the selected flow advantage parameter is analyzed, the number of the flow advantage channel development types is determined according to the variation law, the flow advantage parameter interval of each flow advantage channel development type is determined according to the counting and analyzing method, and a corresponding evaluation coefficient is set for each flow advantage parameter interval of each flow advantage channel development type to represent the influence of the flow advantage parameter on different flow advantage channel development types.

[0083] The evaluation value operation module 203 is configured to acquire the evaluation value of the target flow advantage channel based on the flow evaluation coefficient and the corresponding coefficient weight.

[0084] In the embodiment, the correlation between the development degree of the dominant channel and the flow dominance parameter is set to the coefficient weight of each flow dominance parameter.

[0085] In the embodiment, as an optional embodiment, the development type of the flow dominant channel is classified into three types, and the evaluation coefficient of the flow dominance parameter interval corresponding to each development type of the flow dominant channel is set to establish the mapping relationship between the flow dominance parameter interval and the evaluation coefficient. Based on the flow evaluation coefficient and the corresponding coefficient weight, the evaluation value of the target flow dominant channel is obtained, including:

[0086] The parameter product acquisition unit is configured to obtain the product of the flow evaluation coefficient and the coefficient weight for each parameter, wherein each parameter corresponds to a parameter product.

[0087] The evaluation value acquisition unit is configured to calculate the sum of the parameter products to obtain the evaluation value of the target flow dominant channel.

[0088] In the embodiment, as an optional embodiment, the evaluation value of each well is calculated.

[0089] In the embodiment, as an optional embodiment, the flow evaluation coefficient and the coefficient weight can also be normalized. In the embodiment, as an example of the flow evaluation coefficient, the sum of the flow evaluation coefficients corresponding to each flow dominance parameter is obtained, and for each flow dominance parameter, the flow evaluation coefficient corresponding to the flow dominance parameter is divided by the sum to obtain the normalized value of the flow dominance parameter.

[0090] In the embodiment, the flow dominance coefficient weight is a normalized coefficient weight, and the sum of all normalized coefficient weights is 1.

[0091] In the embodiment, as an optional embodiment, after the normalized value of the flow dominance parameter is determined, the normalized value of each injection well for deep profile control and flooding can be obtained according to the normalized values.

[0092] The development type judgment module 204 is configured to determine the development type of the flow dominant channel of the target flow dominant channel according to the corresponding relationship between the development type of the flow dominant channel and the evaluation value.

[0093] In the embodiment, as an optional embodiment, the development type of the flow dominant channel can include: no development type of the dominant channel, mild development type of the dominant channel, and severe development type of the dominant channel.

[0094] In this embodiment, according to the actual characteristics of the oil reservoir, the corresponding relationship between the development type of the water flow dominant channel and the evaluation value can be set in advance through investigation and analysis. As an optional embodiment, the normalized evaluation value corresponding to each development type of the water flow dominant channel obtained through normalization processing can be as follows: when the evaluation value is greater than 0.6, the development type of the water flow dominant channel is the severe development type of the dominant channel; when the evaluation value is between 0.3 and 0.6, the development type of the water flow dominant channel is the moderate development type of the dominant channel; and when the evaluation value is less than 0.3, the development type of the water flow dominant channel is the non-development type of the dominant channel.

[0095] In this embodiment, as an optional embodiment, the relative development situation of the water flow dominant channel is qualitatively judged according to the corresponding relationship between the development type of the water flow dominant channel and the evaluation value.

[0096] The plug structure design module 205 is configured to query the corresponding relationship between the development type of the water flow dominant channel and the plug structure design that is set in advance, and obtain the plug structure design corresponding to the determined development type of the water flow dominant channel.

[0097] In this embodiment, as an optional embodiment, the corresponding relationship between the development type of the water flow dominant channel and the plug structure design that is set in advance includes:

[0098] When the development type of the water flow dominant channel is the severe development type of the dominant channel, the plug structure design is to first block the dominant channel and then adjust the high-permeability strip;

[0099] When the development type of the water flow dominant channel is the moderate development type of the dominant channel, the plug structure design is to first adjust the high-permeability strip and then expand the swept volume;

[0100] When the development type of the water flow dominant channel is the non-development type of the dominant channel, the plug structure design is to inject a displacement system to expand the swept volume.

[0101] In this embodiment, as an optional embodiment, the development type of the water flow dominant channel is determined according to the specific identification result of each well, and the injection plug design of deep profile control and flooding is performed on the water flow dominant channels of different development types. As an optional embodiment, the specific implementation steps of the injection plug design of deep profile control and flooding on the water flow dominant channels of different development types can be as follows:

[0102] When the development type of the water flow dominant channel is the severe development type of the dominant channel, the body-swelling particles + medium-high strength gel are first injected, and then the medium-high strength gel or body-swelling particle system is injected;

[0103] When the development type of the water flow dominant channel is the moderate development type of the dominant channel, the medium-high strength gel or body-swelling particle is first injected, and then the weak gel or microsphere system is injected;

[0104] When the development type of the water flow dominant channel is the non-development type of the dominant channel, the weak gel or microsphere system is injected.

[0105] Based on the same inventive concept, the embodiments of the present application further provide a storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for determining the design of the segment structure in any possible implementation manner described above.

[0106] Optionally, the storage medium can be a non-transitory computer readable storage medium, for example, the non-transitory computer readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0107] Based on the same inventive concept, referring to Figure 3 , the embodiments of the present application further provide an electronic device, which comprises a memory 101 (for example, a non-volatile memory), a processor 102, and a computer program stored in the memory 101 and executable on the processor 102, wherein the processor 102 implements the steps of the method for determining the design of the segment structure in any possible implementation manner described above when executing the program, which is equivalent to the above-mentioned device for determining the design of the segment structure, and of course, the processor can also be used to process other data or operations. The electronic device can be a PC, a server, a terminal, etc.

[0108] As shown in Figure 3 , the electronic device generally further comprises a memory 103, a network interface 104, and an internal bus 105. In addition to these components, other hardware can also be included, which will not be described here.

[0109] It should be noted that the above-mentioned device for determining the design of the segment structure can be implemented by software, which is a logically meaningful device formed by reading the computer program instructions stored in the non-volatile memory into the memory 103 and running by the processor 102 of the electronic device.

[0110] Embodiments of the subject matter and the functional operations described in this specification can be implemented in digital electronic circuitry, in tangibly-embodied computer software or firmware, in computer hardware, including the structures disclosed in this specification and their structural equivalents, or in combinations of one or more of them. Embodiments of the subject matter described in this specification can be implemented as one or more computer programs, i.e., one or more modules of computer program instructions encoded on a tangible non-transitory program carrier to execute on or control the operation of data processing apparatus. Alternatively or additionally, the program instructions can be encoded on an artificially generated propagated signal, e.g., a machine-generated electrical, optical, or electromagnetic signal that is generated to encode information for transmission to suitable receiver apparatus for execution by a data processing apparatus. A computer storage medium can be a machine-readable storage device, a machine-readable storage substrate, a random or serial access memory device, or a combination of one or more of them.

[0111] The processes and logic flows described in this specification can be performed by one or more programmable computers executing one or more computer programs to perform functions by operating on input data and generating output. The processes and logic flows can also be performed by special purpose logic circuitry, e.g., an FPGA (field programmable gate array) or an ASIC (application specific integrated circuit), and / or by programmable data processing apparatuses, which can be

[0112] Computers suitable for the execution of a computer program include, by way of example, general and / or special purpose microprocessors, or any other kind of central processing unit. Generally, a central processing unit will receive instructions and data from a read-only memory and / or a random access memory. The essential elements of a computer are a central processing unit for performing or executing instructions and one or more memory devices for storing instructions and data. Generally, a computer will also include, or be operatively coupled to receive data from or transfer data to, or both, one or more mass storage devices for storing data, e.g., magnetic, magneto-optical disks, or optical disks. However, a computer need not have such devices. Moreover, a computer can be embedded in another device, e.g., a mobile telephone, a personal digital assistant (PDA), a mobile audio or video player, a game console, a Global Positioning System (GPS) receiver, or a portable storage device (e.g., a universal serial bus (USB) flash drive), to name just a few.

[0113] Computer readable media suitable for storing computer program instructions and data include all forms of non-volatile memory, media and memory devices, including by way of example semiconductor memory devices, e.g., EPROM, EEPROM, and flash memory devices; magnetic disks, e.g., internal hard disks or removable disks; magneto-optical disks; and CD-ROM and DVD-ROM disks. The processor and the memory can be supplemented by, or incorporated in, special purpose logic circuitry.

[0114] While this specification contains many specifics, these should not be construed as limitations on the scope of any invention or on the required scope of patent protection. Certain features outside the scope of the claimed invention are described in this specification, and these should not be construed as excluding those features from the claimed invention. In addition, features from one embodiment can be combined with features from another embodiment or other embodiments while still falling within the scope of the claimed invention. Moreover, while features can be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination and the claimed combination can be directed to a subcombination or variation of a subcombination.

[0115] Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring such order nor that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing can be advantageous.

[0116] Thus, particular embodiments of the subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve the desired results.

[0117] It is noted that, in this document, recitation of a list of elements does not preclude the presence of one or more other elements. It is further noted that, as used in this document, the conjunction "or" is intended to be inclusive, unless the context clearly indicates otherwise. Thus, by applying the conjunctive "or," certain aspects can be applied individually and other aspects can be applied in combination with other aspects. The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations.

[0118] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes can be devised in accordance with these principles by those skilled in the art without departing from the spirit or scope of the application. Therefore, to the extent that such modifications and changes do not depart from the spirit of the application, they are intended to be included within the scope of claims.

Claims

1. A method for determining the design of a slug structure, characterized in that, include: Obtain the flow dominance parameters of each channel in the target flow dominance channel between oil and water wells; Based on the pre-set mapping relationship between the dominant flow parameter range and the evaluation coefficient, the evaluation coefficient of each dominant flow parameter is obtained. Based on each of the aforementioned water flow evaluation coefficients and their corresponding weights, the evaluation value of the target water flow dominant channel is obtained; Based on the pre-set correspondence between the development type of the dominant flow channel and the evaluation value, the development type of the target dominant flow channel is determined; Query the pre-set correspondence between the development type of the dominant water flow channel and the slug structure design, and obtain the slug structure design corresponding to the determined development type of the dominant water flow channel.

2. The method according to claim 1, characterized in that, The water flow dominance parameters include: reservoir static parameters and production dynamic parameters.

3. The method according to claim 2, characterized in that, The reservoir static parameters include porosity, permeability, and pore throat radius, while the production dynamic parameters include water injection ratio, pressure index, filling degree, and water absorption intensity.

4. The method according to claim 3, characterized in that, The process of obtaining the evaluation value of the target flow dominance channel based on each of the flow evaluation coefficients and their corresponding weights includes: Calculate the following products respectively: the product of the flow evaluation coefficient mapped by porosity and the porosity coefficient weight; the product of the flow evaluation coefficient mapped by permeability and the permeability coefficient weight; the product of the flow evaluation coefficient mapped by pore throat radius and the pore throat radius coefficient weight; the product of the flow evaluation coefficient mapped by water injection ratio and the water injection ratio coefficient weight; the product of the flow evaluation coefficient mapped by pressure index and the pressure index coefficient weight; the product of the flow evaluation coefficient mapped by fullness and the fullness coefficient weight; and the product of the flow evaluation coefficient mapped by water absorption intensity and the water absorption intensity coefficient weight. The sum of the porosity product, permeability product, pore throat radius product, water injection ratio product, pressure index product, fill factor product, and water absorption intensity product is calculated to obtain the evaluation value of the target water flow dominant channel.

5. The method according to claim 4, characterized in that, The weights for porosity coefficient, permeability coefficient, pore throat radius coefficient, water injection ratio coefficient, pressure index coefficient, fill factor coefficient, and water absorption strength coefficient are normalized coefficient weights, and the sum of all normalized coefficient weights is 1.

6. The method according to any one of claims 1 to 5, characterized in that, The development types of dominant channels include: no dominant channel development, moderate dominant channel development, and severe dominant channel development.

7. The method according to claim 6, characterized in that, The pre-defined correspondence between the development type of the dominant water flow channel and the slug structure design includes: The dominant water flow channel development type is the severely developed dominant channel type, and the slug structure is designed to first block the dominant channel and then adjust the high-permeability strip; The dominant water flow channel development type is the mild development type of the dominant channel, and the slug structure is designed to first adjust the high-permeability strip and then expand the swept volume; The dominant water flow channel development type is described above, and the slug structure is designed to inject a displacement system to expand the swept volume.

8. A device for determining the design of a slug structure, characterized in that, The device for determining the slug structure design includes: The parameter acquisition module is used to acquire the water flow advantage parameters of each target water flow advantage channel between oil and water wells; The evaluation coefficient acquisition module is used to obtain the water flow evaluation coefficient mapped to each water flow advantage parameter based on the pre-set mapping relationship between the water flow advantage parameter range and the evaluation coefficient. The evaluation value calculation module is used to obtain the evaluation value of the target water flow advantage channel based on each of the water flow evaluation coefficients and the corresponding coefficient weights; The development type determination module is used to determine the development type of the target flow dominance channel based on the pre-set correspondence between the development type of the flow dominance channel and the evaluation value. The slug structure design module is used to query the correspondence between the pre-set water flow dominant channel development type and the slug structure design, and to obtain the slug structure design corresponding to the determined water flow dominant channel development type.

9. A storage medium, characterized in that, The storage medium stores a program or instructions, which are executed by a processor to implement the steps of the method for determining the slug structure design as described in any one of claims 1 to 7.

10. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method for determining the slug structure design as described in any one of claims 1 to 7.

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