Oil reservoir composite adjustment and flooding method, device and electronic equipment

Abstract

The present application provides a composite reservoir flooding method, device, and electronic device; applied to the field of oil and gas resource development, the method includes performing a reservoir structure analysis on a target reservoir to obtain a structural analysis result; determining a composite flooding system corresponding to the target reservoir based on the structural analysis result; the composite flooding system includes: a first system, a second system, and a third system; the first system is used to seal a first fracture in the target reservoir; the second system is used to displace the remaining oil in a second fracture in the target reservoir; and the third system is used to imbibe the remaining oil in a third fracture in the target reservoir; performing a physical simulation analysis on the target reservoir injected with the composite flooding system to obtain a simulation analysis result corresponding to the target reservoir; the simulation analysis result represents the residual oil recovery rate of the target reservoir; and in response to the simulation analysis result satisfying the set flooding conditions, determining a flooding scheme corresponding to the target reservoir based on the composite flooding system. In this way, the residual oil recovery rate can be improved and the water injection sweep volume can be expanded.

Description

Technical Field

[0001] The present application relates to the technical field of oil and gas resource development, and in particular to a method, device and electronic equipment for composite reservoir control and flooding. Background Art

[0002] During oilfield development, the oil blocks are well-developed with fractures, and injected water primarily advances along the dominant east-west fracture pathways, resulting in low waterflooding efficiency. The large amount of residual oil in the non-dominant directions around the wells and in the porous matrix is ​​difficult to effectively mobilize, and the remaining oil between wells is primarily concentrated in the upper porous matrix. After the initial water injection, significant water channeling occurred in the wells, indicating that the injected water preferentially advances along the high-permeability dominant fracture pathways, failing to effectively reach the crude oil in the low-permeability areas and porous matrix. Consequently, current reservoir development methods result in low residual oil recovery and a small water injection volume, which prevents full reservoir development. Summary of the Invention

[0003] The embodiments of the present application provide a method, device, and electronic equipment for composite reservoir adjustment and displacement to solve one or more problems existing in the related art.

[0004] According to a first aspect of the present application, a composite profile adjustment and displacement method for an oil reservoir is provided, comprising: performing a reservoir structure analysis on a target oil reservoir to obtain a structural analysis result; determining a composite profile adjustment and displacement system corresponding to the target oil reservoir based on the structural analysis result; the composite profile adjustment and displacement system comprising: a first system, a second system, and a third system; the first system is used to seal a first fracture in the target oil reservoir; the second system is used to displace the remaining oil in a second fracture in the target oil reservoir; the third system is used to imbibe the remaining oil in a third fracture in the target oil reservoir; performing a physical simulation analysis on the target oil reservoir injected with the composite profile adjustment and displacement system to obtain a simulation analysis result corresponding to the target oil reservoir; the simulation analysis result represents the residual oil recovery rate of the target oil reservoir; and in response to the simulation analysis result satisfying a set profile adjustment and displacement condition, determining a profile adjustment and displacement scheme corresponding to the target oil reservoir based on the composite profile adjustment and displacement system.

[0005] According to one embodiment of the present application, determining the composite profile adjustment and displacement system corresponding to the target oil reservoir based on the structural analysis results includes: determining the structural characteristics of the first fracture, the structural characteristics of the second fracture, and the structural characteristics of the third fracture included in the target oil reservoir based on the structural analysis results; the fracture aperture of the first fracture is greater than the fracture aperture of the second fracture; the fracture aperture of the second fracture is greater than the fracture aperture of the third fracture; determining the first system based on the structural characteristics of the first fracture; determining the second system based on the structural characteristics of the second fracture; determining the third system based on the structural characteristics of the third fracture; and determining the composite profile adjustment and displacement system based on the first system, the second system, and the third system.

[0006] According to one embodiment of the present application, determining the first system based on the structural characteristics of the first crack includes: determining the first target agent corresponding to sealing the first crack based on the structural characteristics of the first crack; generating a first system corresponding to the first target agent; the first target agent includes at least inorganic expanding particles and organic expanding particles.

[0007] According to one embodiment of the present application, determining the second system based on the structural characteristics of the second fracture includes: determining a second target agent corresponding to displacing the residual oil in the second fracture based on the structural characteristics of the second fracture; generating a second system corresponding to the second target agent; the second target agent at least includes a multipolymer gel; the multipolymer gel is composed of a multipolymer, a cross-linking agent and a stabilizer.

[0008] According to one embodiment of the present application, the third system is determined based on the structural characteristics of the third crack, including: determining a third target agent corresponding to the residual oil absorbed in the third crack based on the structural characteristics of the third crack; generating a first system corresponding to the third target agent; the third target agent at least includes a small molecule absorbent; and the small molecule absorbent is composed of small molecule aggregates.

[0009] According to one embodiment of the present application, the physical simulation analysis of the target oil reservoir injected with the composite adjustment and displacement system to obtain the simulation analysis results corresponding to the target oil reservoir includes: injecting the first system, the second system and the third system into the experimental model corresponding to the target oil reservoir in sequence to obtain a simulated oil reservoir; performing the physical simulation analysis on the simulated oil reservoir to obtain the fracture plugging rate and crude oil recovery rate corresponding to the cores with different fracture openings included in the simulated oil reservoir; and determining the simulation analysis results corresponding to the target oil reservoir based on the fracture plugging rate and crude oil recovery rate.

[0010] According to one embodiment of the present application, in response to the simulation analysis results satisfying the set displacement conditions, determining a displacement scheme corresponding to the target reservoir based on the composite displacement system includes: in response to the simulation analysis results satisfying the set displacement conditions, determining a target slug combination corresponding to the target reservoir from preset slug combinations based on the composite displacement system; the target slug combination including at least one of a flow control slug, an isolation slug, and a displacement slug; determining a dosage of a target agent corresponding to the target reservoir based on a size of the target slug combination and a target agent concentration in the composite displacement system; and determining the displacement scheme corresponding to the target reservoir based on the target slug combination and the agent dosage.

[0011] According to one embodiment of the present application, the method further includes: obtaining construction process requirements for the target oil reservoir; determining construction parameters corresponding to the injection of the composite profile adjustment and displacement system into the target oil reservoir based on the construction process requirements, the target slug combination, and the reagent dosage; the construction parameters include at least: the order of injecting the composite profile adjustment and displacement system and the reagent injection amount of the composite profile adjustment and displacement system; and determining a construction plan for the target oil reservoir based on the construction parameters.

[0012] According to a second aspect of the present application, a composite oil reservoir adjustment and displacement device is provided, comprising: an analysis module for performing an oil reservoir structure analysis on a target oil reservoir to obtain a structural analysis result; a adjustment and displacement module for determining a composite adjustment and displacement system corresponding to the target oil reservoir based on the structural analysis result; the composite adjustment and displacement system comprises: a first system, a second system and a third system; the first system is used to seal a first fracture in the target oil reservoir; the second system is used to displace the remaining oil in a second fracture in the target oil reservoir; the third system is used to imbibe the remaining oil in the third fracture in the target oil reservoir; a simulation module for performing a physical simulation analysis on a target oil reservoir injected with the composite adjustment and displacement system to obtain a simulation analysis result corresponding to the target oil reservoir; the simulation analysis result represents the residual oil recovery rate of the target oil reservoir; a determination module for determining a adjustment and displacement scheme corresponding to the target oil reservoir based on the composite adjustment and displacement system in response to the simulation analysis result satisfying a set adjustment and displacement condition.

[0013] According to a third aspect of the present application, an electronic device is provided, including:

[0014] at least one processor; and

[0015] a memory communicatively connected to the at least one processor; wherein,

[0016] The memory stores instructions that can be executed by the at least one processor. The instructions are executed by the at least one processor to enable the at least one processor to perform the method described in this application.

[0017] The method of an embodiment of the present application includes performing a reservoir structure analysis on a target reservoir to obtain a structural analysis result; determining a composite profile adjustment and displacement system corresponding to the target reservoir based on the structural analysis result; the composite profile adjustment and displacement system includes: a first system, a second system, and a third system; the first system is used to seal a first fracture in the target reservoir; the second system is used to displace residual oil in a second fracture in the target reservoir; and the third system is used to imbibe residual oil in a third fracture in the target reservoir; performing a physical simulation analysis on the target reservoir injected with the composite profile adjustment and displacement system to obtain a simulation analysis result corresponding to the target reservoir; the simulation analysis result represents the residual oil recovery rate of the target reservoir; and, in response to the simulation analysis result satisfying the set profile adjustment and displacement conditions, determining a profile adjustment and displacement scheme corresponding to the target reservoir based on the composite profile adjustment and displacement system. In this way, the residual oil recovery rate can be increased and the water injection sweep volume can be expanded, thereby enhancing the overall development effect of the reservoir.

[0018] It should be understood that the teachings of this application do not necessarily achieve all of the beneficial effects described above, but that specific technical solutions can achieve specific technical effects, and other embodiments of this application can also achieve beneficial effects not mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other objects, features and advantages of the exemplary embodiments of the present application will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present application are shown in an illustrative and non-limiting manner, in which:

[0020] In the drawings, the same or corresponding reference numerals denote the same or corresponding parts.

[0021] Figure 1 The process flow diagram of the oil reservoir composite flooding method provided in the embodiment of the present application is shown as follows Figure 1 ;

[0022] Figure 2 The process flow diagram of the oil reservoir composite flooding method provided in the embodiment of the present application is shown as follows Figure 2 ;

[0023] Figure 3 The process flow diagram of the oil reservoir composite flooding method provided in the embodiment of the present application is shown as follows Figure 3 ;

[0024] Figure 4 The process flow diagram of the oil reservoir composite flooding method provided in the embodiment of the present application is shown as follows Figure 4 ;

[0025] Figure 5 The schematic diagram of the processing flow of the oil reservoir composite flooding method provided in the embodiment of the present application is shown Figure 5 ;

[0026] Figure 6 A diagram showing an application scenario of the reservoir composite flooding method provided in an embodiment of the present application is shown;

[0027] Figure 7 An optional schematic diagram of the reservoir composite adjustment and displacement device provided in an embodiment of the present application is shown;

[0028] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0029] In order to make the purpose, features, and advantages of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of this application.

[0030] In the following description, reference is made to “some embodiments”, which describes a subset of all possible embodiments, but it will be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0031] In the following description, the terms "first\second" involved are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It is understandable that "first\second" can be interchanged with a specific order or sequence where permitted, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein are for the purpose of describing the embodiments of this application only and are not intended to limit this application.

[0033] The processing flow of the oil reservoir composite flooding method provided in the embodiment of the present application is described. Figure 1 , Figure 1 This is a schematic diagram of the processing flow of the oil reservoir composite flooding method provided in the embodiment of the present application. Figure 1 , will combine Figure 1 Steps S101-S104 are shown for explanation.

[0034] Step S101: performing reservoir structure analysis on a target reservoir to obtain a structure analysis result.

[0035] In some embodiments, reservoir structure analysis may include analyzing the geological structure, fracture distribution, and other structures of a target reservoir. The target reservoir may include a porous and fractured reservoir within a well group. The well group may include injection wells and production wells. The structural analysis results may include the characteristics and distribution of different fractures within the target reservoir. Reservoir structure analysis may include a comprehensive analysis of the well group's injection and production status, inter-well connectivity, and remaining oil analysis.

[0036] Step S102: Determine a composite profile adjustment and displacement system corresponding to the target reservoir based on the structural analysis results. The composite profile adjustment and displacement system includes a first system, a second system, and a third system. The first system is used to plug the first fracture in the target reservoir; the second system is used to displace the remaining oil in the second fracture in the target reservoir; and the third system is used to imbibe the remaining oil in the third fracture in the target reservoir.

[0037] In some embodiments, a composite oil and gas profile adjustment and displacement system may include a comprehensive reservoir profile adjustment and displacement system comprising multiple systems. The composite profile adjustment and displacement system may be used to enhance oil recovery from a target reservoir. A first system may include a profile adjustment and displacement system for plugging a first fracture in the reservoir. A second system may include a profile adjustment and displacement system for displacing residual oil in a second fracture in the reservoir. A third system may include a profile adjustment and displacement system for imbibing residual oil in a third fracture in the reservoir. The first fracture may have a greater aperture than the second fracture, and the second fracture may have a greater aperture than the third fracture.

[0038] Step S103 , performing physical simulation analysis on the target oil reservoir injected with the composite profile adjustment and displacement system to obtain simulation analysis results corresponding to the target oil reservoir; the simulation analysis results represent the remaining oil recovery rate of the target oil reservoir.

[0039] In some embodiments, the physical simulation analysis may include parallel core flow experiment analysis. Specifically, the parallel core flow experiment analysis is performed on the target reservoir injected with the composite profile injection system to obtain fracture plugging efficiency and oil recovery efficiency. The fracture plugging efficiency and oil recovery efficiency can represent the remaining oil recovery rate of the target reservoir.

[0040] Step S104: In response to the simulation analysis results satisfying the set control and displacement conditions, a control and displacement scheme corresponding to the target reservoir is determined based on the composite control and displacement system.

[0041] In some embodiments, the displacement conditions may include: displacement effect standards pre-set according to the geological structure and development objectives of the target oil reservoir. Specific displacement conditions may include fracture plugging rate and crude oil recovery rate improvement, etc., and the embodiments of the present application do not limit the specific displacement conditions. For example, the simulation analysis results satisfying the set displacement conditions may include: when the simulation analysis results include an increase in crude oil recovery rate greater than 15% and a fracture plugging rate greater than 90%, determining that the simulation analysis results satisfy the set displacement conditions. The displacement plan may include: a target oil reservoir displacement implementation plan formulated based on a composite displacement system. The displacement plan may include a target segment plug combination and agent dosage, etc., and the embodiments of the present application do not limit the specific displacement plan.

[0042] The method of the embodiment of the present application, through reservoir structure analysis, specifically designs a composite adjustment and displacement system comprising a first system, a second system and a third system, which can effectively block the dominant fracture channels, displace the residual oil in the secondary fractures, and absorb the residual oil in the micro fractures. The effectiveness of the adjustment and displacement system was verified through physical simulation analysis to ensure the rationality of the adjustment and displacement scheme. It can significantly improve the residual oil recovery rate of the reservoir, expand the water injection sweep volume, adjust the water channeling channel, and improve the oil washing efficiency. It has good adaptability and sealing effect for different types of fractures, especially for the residual oil recovery rate in micro fractures. In addition, by optimizing the segment plug combination and construction parameters, the efficiency of the composite adjustment and displacement construction is further improved, the construction cost is reduced, and the overall development effect of the reservoir block is improved.

[0043] In some embodiments, the processing flow diagram of the oil reservoir composite flooding method is as follows: Figure 2 ,like Figure 2 As shown, determining the composite profile adjustment and flooding system corresponding to the target reservoir based on the structural analysis results in step S102 may include:

[0044] Step S201 : determining the structural characteristics of the first fracture, the second fracture, and the third fracture included in the target reservoir based on the structural analysis result.

[0045] In this embodiment, the first fracture may specifically be the fracture with the largest fracture opening in the target reservoir, typically a primary fracture. The structural characteristics of the first fracture may include characteristics such as fracture opening, fracture connectivity, and fracture distribution location. The embodiments of this application do not limit the specific structural characteristics. The second fracture may specifically be a fracture with a fracture opening between the first and third fractures in the target reservoir, typically a secondary fracture. The structural characteristics of the second fracture may include characteristics such as fracture opening, fracture connectivity, and fracture distribution location. The embodiments of this application do not limit the specific structural characteristics. The third fracture may specifically be the fracture with the smallest fracture opening in the target reservoir, typically a microcrack. The structural characteristics of the third fracture may include characteristics such as fracture opening, fracture connectivity, and fracture distribution location. The embodiments of this application do not limit the specific structural characteristics.

[0046] Step S202: determining a first system based on the structural characteristics of the first crack.

[0047] In some embodiments, step S202 may include: determining a first target agent corresponding to blocking the first crack based on the structural characteristics of the first crack; generating a first system corresponding to the first target agent; the first target agent includes at least inorganic expanding particles and organic expanding particles.

[0048] In this embodiment, the first system can specifically be an inorganic-organic composite swelling particle control and displacement system, and the first target agent can be an inorganic-organic composite swelling particle. The first system can be used to plug the main fractures in the target reservoir, achieve flow diversion in the target reservoir, and expand the water flooding volume. The first system can preferably be an elastic swelling particle system, and the first target agent corresponding to the elastic swelling particle system can include composite viscoelastic swelling particles. The composite viscoelastic swelling particles have an expansion multiple of more than 3 times under high temperature and high salinity conditions. The composite viscoelastic swelling particles include inorganic swelling particles and organic swelling particles. The composite viscoelastic swelling particles can be prepared into particles of different particle sizes according to the requirements corresponding to the structural characteristics, and carried by water in the first system to plug the main fractures, so that the injected water in the target reservoir is diverted to flow toward secondary fractures. Generating the second system corresponding to the second target agent can include: generating the corresponding inorganic-organic composite swelling particle control and displacement system based on the determined composition of the inorganic-organic composite swelling particles.

[0049] Step S203: determining a second system based on the structural characteristics of the second crack.

[0050] In some embodiments, step S203 may include: determining a second target agent corresponding to displacing the residual oil in the second fracture based on the structural characteristics of the second fracture; generating a second system corresponding to the second target agent; the second target agent at least includes a multipolymer gel; the multipolymer gel is composed of a multipolymer, a crosslinker and a stabilizer.

[0051] In this embodiment, the second system can specifically be a high-initial-viscosity multipolymer gel flooding system, and the second target agent can be a high-initial-viscosity multipolymer gel. The second system can be used to displace residual oil in secondary fractures of a target reservoir and improve the flooding effect. The operating principle of the second system may include: functional groups such as amide groups, imino groups, aldehyde groups, and sulfonic acid groups on the multipolymer molecular chains are cross-linked with a crosslinker to form a micron-scale multi-point network structure. This dense network can firmly lock in water, forming a colloid of a certain strength. The multipolymer gel can be composed of three agents: the multipolymer, the crosslinker, and the stabilizer. The ratio of the three agents varies depending on the strength of the multipolymer gel. For example, the ratio of a weak-strength multipolymer gel is 0.6% multipolymer + 0.4% crosslinker + 0.3% stabilizer; the ratio of a medium-strength multipolymer gel is 0.6% multipolymer + 0.5% crosslinker + 0.4% stabilizer. The agents of varying strength are determined based on different structural characteristics. Generating the second system corresponding to the second target agent may include: generating a corresponding high initial viscosity multi-polymer gel flooding system according to the determined composition of the multi-polymer gel.

[0052] Step S204: determining a third system based on the structural characteristics of the third crack.

[0053] In some embodiments, step S204 may include: determining a third target agent corresponding to the residual oil absorbed in the third crack based on the structural characteristics of the third crack; generating a first system corresponding to the third target agent; the third target agent at least includes a small molecule absorbent; and the small molecule absorbent is composed of small molecule aggregates.

[0054] In this embodiment, the third system can specifically be a small molecule sorbent adjustment and displacement system. The third target agent can be a small molecule sorbent. The third system can be used to absorb the remaining oil in the tiny cracks of the target oil reservoir, especially the remaining oil in the tiny cracks with high asphaltene content. The small molecule sorbent has strong permeability and can penetrate the oil film on the rock wall and change the wettability of the rock. The small molecule sorbent can effectively reduce the adhesion work of crude oil and promote the detachment of the oil film from the rock wall. The small molecule sorbent adjustment and displacement system can specifically be a small molecule nano-absorbing and washing oil system. The small molecule sorbent can be a small molecule aggregate with a 7-8 nm nano-core as the core and a short-chain sorbent as the shell. Generating the third system corresponding to the third target agent may include: generating a corresponding small molecule sorbent adjustment and displacement system according to the determined composition of the small molecule sorbent.

[0055] Step S205: determining a composite adjustment and flooding system based on the first system, the second system, and the third system.

[0056] In this example, a first system for plugging primary fractures, a second system for displacing residual oil in secondary fractures, and a third system for imbibing residual oil in microfractures are combined. By optimizing the target agents for each system, a composite profile adjustment and displacement system for the target reservoir is formed. In specific implementation, the composite profile adjustment and displacement system can be initially injected into the target reservoir to plug primary fractures, allowing subsequent fluid injection to flow into secondary fractures. Next, the second system is injected to displace residual oil in secondary fractures. Finally, the third system is injected to imbibe residual oil in microfractures.

[0057] In some embodiments, the processing flow diagram of the oil reservoir composite flooding method is as follows: Figure 3 , like Figure 3 As shown, in step S103, physical simulation analysis is performed on the target reservoir injected with the composite profile adjustment and flooding system to obtain simulation analysis results corresponding to the target reservoir, which may specifically include:

[0058] Step S301: inject the first system, the second system and the third system into the experimental model corresponding to the target reservoir in sequence to obtain a simulated reservoir.

[0059] Step S302 : Perform physical simulation analysis on the simulated oil reservoir to obtain fracture plugging rates and crude oil recovery rates corresponding to cores with different fracture apertures included in the simulated oil reservoir.

[0060] Step S303: Determine the simulation analysis result corresponding to the target oil reservoir based on the fracture plugging efficiency and the crude oil recovery efficiency.

[0061] In this embodiment, the experimental model can be a profile control system model suitable for the target reservoir; the simulated reservoir can include a physical model constructed in the laboratory that matches the geological characteristics of the target reservoir. The simulated reservoir can be used to simulate the actual remaining oil recovery process in the target reservoir. Physical simulation analysis can include parallel core flow experiment analysis. Specifically, the physical simulation analysis can include performing a three-dimensional geological model of the target reservoir and sequentially injecting the first, second, and third systems to generate a simulated reservoir. The parallel core flow experiment can be used to evaluate the profile improvement performance and oil recovery rate of the simulated reservoir. The physical simulation analysis can be used to evaluate the effectiveness of the composite profile control and displacement system applied to the target reservoir. The fracture plugging rate can include the effectiveness of the composite profile control and displacement system in plugging fractures in the target reservoir. The fracture plugging rate can be expressed as a percentage and can represent the ratio of the area or volume of the plugged fractures to the total fracture volume. The oil recovery rate can include the percentage of the actual oil recovered from the target reservoir to the total oil volume in the original target reservoir. The simulation analysis results can include the fracture plugging rate and the oil recovery rate.

[0062] As an example, a profile control system model suitable for the target reservoir is screened out, and the first system, second system, and third system are sequentially injected into the profile control system model corresponding to the target reservoir to obtain a simulated reservoir; the simulated reservoir can be a physical model with different fracture openings (such as 0.1 mm, 0.3 mm, and 0.5 mm), and the simulated reservoir can include core samples and fluid distribution corresponding to the target reservoir.

[0063] Through parallel core flow experiments, a physical simulation analysis of the simulated reservoir was conducted to obtain the fracture plugging efficiency and oil recovery rate corresponding to the cores with different fracture apertures in the simulated reservoir. The fracture plugging efficiency and oil recovery rate can be used to indicate the profile improvement performance of the simulated reservoir and the enhanced recovery effect after profile adjustment.

[0064] The plugging efficiency and oil recovery rates of cores with different fracture apertures were recorded, and the oil recovery rates before and after the injection of the composite profile adjustment and displacement system were compared. For example, experimental results showed that for cores with a fracture aperture of 0.1 mm, the plugging efficiency reached 96.92%, with an oil recovery increase of 22.2%; for cores with a fracture aperture of 0.3 mm, the plugging efficiency reached 97.18%, with an oil recovery increase of 15.2%; and for cores with a fracture aperture of 0.5 mm, the plugging efficiency reached 91.06%, with an oil recovery increase of 12.5%. This data was comprehensively evaluated to determine the simulation analysis results for the target reservoir. The simulation analysis results can demonstrate the effectiveness of the composite profile adjustment and displacement system in the target reservoir.

[0065] In some embodiments, the processing flow diagram of the oil reservoir composite flooding method is as follows: Figure 4 , like Figure 4 As shown, in step S104, in response to the simulation analysis results satisfying the set flooding conditions, a flooding scheme corresponding to the target reservoir is determined based on the composite flooding system, which may specifically include:

[0066] Step S401: In response to the simulation analysis result satisfying the set profile adjustment and displacement conditions, a target slug combination corresponding to the target reservoir is determined from the preset slug combinations based on the composite profile adjustment and displacement system.

[0067] In this embodiment, the preset slug combination may include a pre-set slug combination scheme. The slug combination can be used to optimize the fluid injection sequence and volume during the combined oil reservoir control and flooding process. The target slug combination may include a slug combination corresponding to a target reservoir determined from the preset slug combinations. The target slug combination may include at least one of a flow-regulating slug, an isolation slug, and a displacement slug. A flow-regulating slug can be a slug used to regulate fluid flow, typically controlling the flow path of injected fluid. A flow-regulating slug is a technical means of improving reservoir fluid flow characteristics. The flow-regulating agent corresponding to the flow-regulating slug can adjust the fluid flow path in the target reservoir, thereby improving oil displacement efficiency and recovery. The flow-regulating agent may include bulk-swelling particles, medium-weak gel systems, and small molecule imbibing agents, with oilfield water as the carrier fluid. The flow-regulating agent is injected into the target reservoir through the flow-regulating slug at an appropriate flow rate and pressure. An isolation slug can be a slug used to isolate different control and flooding systems or fluids to prevent interference between them. The flow-regulating agent corresponding to the isolation slug is composed of a viscosified fluid. The displacement slug may be a slug used to completely replace the flow regulating slug and the isolation slug into the oil reservoir. The flow regulating agent corresponding to the displacement slug may specifically include: wellbore protective agent, low-density blowdown inducer, and conventional displacement fluid.

[0068] Step S402: determining the dosage of the reagent corresponding to the target reservoir based on the size of the target slug combination and the concentration of the target reagent in the composite profile adjustment and displacement system.

[0069] Step S403: Determine the flooding scheme corresponding to the target reservoir based on the target slug combination and the reagent dosage.

[0070] In this embodiment, the reagent concentration may include: the mass fraction or volume fraction of the target reagent in the displacement system. The reagent dosage may include: the reagent dosage calculated according to the size of the target slug combination and the reagent concentration.

[0071] In some embodiments, the dosage of the drug for determining the target reservoir can be expressed by the following formula.

[0072] Drug dosage = C × V 段塞

[0073] Where C represents the concentration of the drug, V 段塞 represents the slug volume.

[0074] As an example, the target slug combination is determined based on the target reagents of each system in the composite profile control and displacement system, and the target slug combination matches the function of the target reagent. Based on the size of the target slug combination and the reagent concentration of the target reagent in the composite profile control and displacement system, the reagent dosage corresponding to the target reservoir is determined. Based on the target slug combination and the reagent dosage, the profile control and displacement scheme corresponding to the target reservoir is determined. The profile control and displacement scheme corresponding to the determined target reservoir may specifically include: the front slug is determined to be 40m 3The oilfield water absorption test showed that the flow regulation plug was composed of 2090 cubic meters of bulking particles, 300 cubic meters of weak-strength gel, 100 cubic meters of medium-strength gel, and 300 cubic meters of small-molecule imbibition agent. The isolation plug was composed of 20 cubic meters of viscosified liquid. Based on the wellbore volume corresponding to the target reservoir, the subsequent displacement plug was determined to be 35 cubic meters of oilfield water.

[0075] In some embodiments, the processing flow diagram of the oil reservoir composite flooding method is as follows: Figure 5 , like Figure 5 As shown, the reservoir composite flooding method may further include:

[0076] Step S501: Obtain the construction process requirements of the target oil reservoir.

[0077] Step S502: Determine the construction parameters corresponding to the injection of the composite profile adjustment and flooding system into the target reservoir based on the construction process requirements, target slug combination, and reagent dosage.

[0078] Step S503: Determine a construction plan for the target reservoir based on the construction parameters.

[0079] In this embodiment, the construction process requirements may include: technical requirements that need to be met for composite flooding construction in the target reservoir. The construction process requirements may specifically include construction technical requirements and data acquisition requirements. Construction parameters may specifically include: flow control agent dosage, pump displacement and injection pressure. Based on the construction process requirements, the target slug combination and agent dosage, determining the construction parameters corresponding to the composite flooding system injected into the target reservoir may include: determining the construction parameters when injecting the first system based on the construction process requirements, the target slug combination and the agent dosage of the first target agent; determining the construction parameters when injecting the second system based on the construction process requirements, the target slug combination and the agent dosage of the second target agent; and determining the construction parameters when injecting the third system based on the construction process requirements, the target slug combination and the agent dosage of the third target agent.

[0080] Taking the construction parameters for injecting the first system as an example, the first target agent contains at least inorganic expanding particles and organic expanding particles. Its injection sequence should be placed at the front end of the slug combination to give priority to plugging the first fracture. The injection volume of the first target agent needs to be determined based on the size and distribution of the first fracture. The injection pressure should be determined in combination with the construction process requirements and the bearing capacity of the target oil reservoir.

[0081] The construction plan may include a detailed construction plan based on construction parameters, including construction steps, time schedule, resource allocation, etc.

[0082] refer to Figure 6 , an application scenario diagram of the reservoir composite profile adjustment and flooding method provided in an embodiment of the present application, which is applied to the composite profile adjustment and flooding of a well group.

[0083] Step S1, well group potential analysis. Specifically, taking the composite flooding of the porous and fractured oil reservoirs of the A well group as an example, by analyzing the well connection profile of the A well group, it can be seen that its upper part is well connected, while the lower part has an underdeveloped pore structure, extremely low permeability, and poor connectivity. The A well group belongs to the low injection and high production category. Through the early water injection, it was found that the effective period is very short, and there will be negative effects, and the water content continues to rise. The recalculated reserves of the oil reservoirs of the A well group are 914,000 tons, which is 396,000 tons less than the development plan, and the calibrated recovery rate is 39.4%. After trial production, decline, high water content extraction and oil increase, comprehensive management, and later water injection development, the recovery rate of the oil reservoir reached 32.93%. Therefore, it is determined that there is still a large amount of remaining oil distributed in the porous and fractured oil reservoirs of the A well group.

[0084] Step S2: Physical simulation analysis. The composite profile control and displacement system corresponding to Well Group A was determined to be an inorganic-organic composite swelling particle profile control and displacement system, a high initial viscosity multi-polymer gel profile control and displacement system, and a small molecule imbibition profile control and displacement system. The inorganic-organic composite swelling particle profile control and displacement system, the high initial viscosity multi-polymer gel profile control and displacement system, and the small molecule imbibition profile control and displacement system were sequentially injected into the model corresponding to Well Group A. Physical simulation analysis results were obtained through parallel core flow experiments. The physical simulation analysis results showed that the relative water absorption of the matrix cores in the model corresponding to Well Group A after profile control and displacement exceeded 70%, with a maximum of 84.4%. After the profile control and displacement system entered the fractures, it significantly reduced the relative water absorption of the fractured cores while increasing it, expanding the injection sweep volume and improving oil recovery efficiency. The plugging efficiency was high for cores with different fracture apertures, with the most significant improvement in oil recovery occurring when the fracture aperture was small. The experiments demonstrated that the composite profile control and displacement system can effectively plug fractures and enhance oil recovery.

[0085] Step S3: Flow control agents are selected. Based on the reservoir characteristics of well group A and the previous flooding and control results, a composite viscoelastic swelling particle system, a medium-strength gel system, and a small molecule imbibition agent system are selected as the primary flow control agents. Viscosified fluid is selected as an auxiliary plugging agent to separate different fluids and chemicals. The flow control agents are mixed with oilfield water to effectively plug and displace different fractures and pore structures, improving sweep efficiency and oil recovery.

[0086] Step S4: Optimize the slug combination and determine the dosage design. Fifteen complete slug combinations were selected. The pre-slug design used 40 cubic meters of oilfield water for water absorption measurement. The flow control slug consisted of 2,090 cubic meters of composite viscoelastic expansive particles, 300 cubic meters of weak-strength gel, 100 cubic meters of medium-strength gel, and 300 cubic meters of small-molecule imbibite. The isolation slug used 20 cubic meters of viscosified fluid. A subsequent design used 35 cubic meters of oilfield water to displace the flow control agent into the formation. The slug design took into account the agent dosage and the wellbore volume of well group A.

[0087] Step S5: Complete the design and formulate a supporting contingency plan. Based on the oilfield's requirements and on-site construction techniques, the combined flow control and flooding scheme for Well Group A was finalized, determining parameters such as flow control agent dosage, pump displacement, and injection pressure. After the flooding, the water content in the production wells decreased and showed a continued downward trend, indicating that the raw water channel had been effectively blocked.

[0088] Next, we will continue to describe the exemplary structure of the software modules included in the reservoir composite adjustment and displacement device 90 provided in the embodiment of the present application. In some embodiments, for example, Figure 7 As shown, the reservoir composite adjustment and displacement device 90 may include:

[0089] Analysis module 901, used to perform reservoir structure analysis on the target reservoir and obtain structural analysis results;

[0090] The profile adjustment module 902 is used to determine a composite profile adjustment system corresponding to the target reservoir based on the structural analysis results. The composite profile adjustment system includes a first system, a second system, and a third system. The first system is used to plug the first fracture in the target reservoir; the second system is used to displace the remaining oil in the second fracture in the target reservoir; and the third system is used to imbibe the remaining oil in the third fracture in the target reservoir.

[0091] The simulation module 903 is used to perform physical simulation analysis on the target reservoir injected with the composite profile adjustment and flooding system to obtain simulation analysis results corresponding to the target reservoir; the simulation analysis results represent the remaining oil recovery rate of the target reservoir;

[0092] The determination module 904 is configured to determine a control and displacement scheme corresponding to the target reservoir based on the composite control and displacement system in response to the simulation analysis results satisfying the set control and displacement conditions.

[0093] In some embodiments, the adjustment and displacement module 902 can be used to: determine the structural characteristics of the first fracture, the structural characteristics of the second fracture, and the structural characteristics of the third fracture included in the target oil reservoir based on the structural analysis results; the fracture aperture of the first fracture is greater than the fracture aperture of the second fracture; the fracture aperture of the second fracture is greater than the fracture aperture of the third fracture; determine the first system based on the structural characteristics of the first fracture; determine the second system based on the structural characteristics of the second fracture; determine the third system based on the structural characteristics of the third fracture; and determine the composite adjustment and displacement system based on the first system, the second system, and the third system.

[0094] In some embodiments, the adjustment and displacement module 902 can be used to: determine a first target agent corresponding to sealing the first crack based on the structural characteristics of the first crack; generate a first system corresponding to the first target agent; the first target agent includes at least inorganic expanding particles and organic expanding particles.

[0095] In some embodiments, the displacement module 902 can be used to: determine a second target agent corresponding to displacing the residual oil in the second fracture based on the structural characteristics of the second fracture; generate a second system corresponding to the second target agent; the second target agent at least includes a multipolymer gel; the multipolymer gel is composed of a multipolymer, a cross-linking agent and a stabilizer.

[0096] In some embodiments, the displacement module 902 can be used to: determine a third target agent corresponding to the residual oil absorbed in the third fracture based on the structural characteristics of the third fracture; generate a first system corresponding to the third target agent; the third target agent at least includes a small molecule absorbent; and the small molecule absorbent is composed of small molecule aggregates.

[0097] In some embodiments, the simulation module 903 can be used to: inject the first system, the second system and the third system into the experimental model corresponding to the target oil reservoir in sequence to obtain a simulated oil reservoir; perform the physical simulation analysis on the simulated oil reservoir to obtain the fracture plugging rate and crude oil recovery rate corresponding to the cores with different fracture openings included in the simulated oil reservoir; and determine the simulation analysis results corresponding to the target oil reservoir based on the fracture plugging rate and crude oil recovery rate.

[0098] In some embodiments, the determination module 904 may be configured to: in response to the simulation analysis result satisfying the set displacement conditions, determine a target slug combination corresponding to the target reservoir from preset slug combinations based on the composite displacement system; the target slug combination includes at least one of a flow control slug, an isolation slug, and a displacement slug. The present invention further provides a method for determining a dosage of a target agent corresponding to the target reservoir based on the size of the target slug combination and the concentration of a target agent in the composite displacement system; and determine a displacement scheme corresponding to the target reservoir based on the target slug combination and the dosage of the target agent.

[0099] In some embodiments, the reservoir composite profile adjustment and displacement device 90 further includes a generation module, which can be used to: obtain the construction process requirements of the target reservoir; determine the construction parameters corresponding to the injection of the composite profile adjustment and displacement system into the target reservoir based on the construction process requirements, the target slug combination, and the agent dosage; the construction parameters include at least: the injection order of the composite profile adjustment and displacement system and the agent injection amount of the composite profile adjustment and displacement system; and determine the construction plan for the target reservoir based on the construction parameters.

[0100] It should be noted that the description of the device in the embodiment of the present application is similar to the description of the method embodiment above, and has similar beneficial effects as the method embodiment, so it will not be repeated here. Figures 1 to 6 The present invention shall be understood by reference to the description of any of the accompanying drawings.

[0101] According to an embodiment of the present application, the present application also provides an electronic device and a non-transitory computer-readable storage medium.

[0102] Figure 8 A schematic block diagram of an example electronic device 800 that can be used to implement an embodiment of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital assistants, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or claimed herein.

[0103] like Figure 8 As shown, electronic device 800 includes a computing unit 801, which can perform various appropriate actions and processes according to a computer program stored in a read-only memory (ROM) 802 or a computer program loaded from a storage unit 808 into a random access memory (RAM) 803. RAM 803 may also store various programs and data required for the operation of electronic device 800. Computing unit 801, ROM 802, and RAM 803 are interconnected via a bus 804. An input / output (I / O) interface 805 is also connected to bus 804.

[0104] Multiple components in the electronic device 800 are connected to the I / O interface 805, including an input unit 806, such as a keyboard, a mouse, etc.; an output unit 807, such as various types of displays, speakers, etc.; a storage unit 808, such as a magnetic disk, an optical disk, etc.; and a communication unit 809, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 809 allows the electronic device 800 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0105] The computing unit 801 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of the computing unit 801 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various computing units running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. The computing unit 801 executes the various methods and processes described above, such as the combined reservoir profiling and flooding method. For example, in some embodiments, the combined reservoir profiling and flooding method can be implemented as a computer software program tangibly embodied in a machine-readable medium, such as the storage unit 808. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 800 via the ROM 802 and / or the communication unit 809. When the computer program is loaded into the RAM 803 and executed by the computing unit 801, one or more steps of the combined reservoir profiling and flooding method described above can be performed. Alternatively, in other embodiments, the computing unit 801 can be configured to execute the combined reservoir profiling and flooding method via any other suitable means (e.g., via firmware).

[0106] Various embodiments of the systems and techniques described above can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0107] The program code for implementing the methods of the present application can be written in any combination of one or more programming languages. Such program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the program code is executed by the processor or controller, the functions / operations specified in the flow charts and / or block diagrams are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0108] In the context of this application, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or apparatus, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include an electrical connection based on 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), optical fibers, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0109] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0110] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), and the Internet.

[0111] A computer system may include a client and a server. The client and server are generally remote from each other and typically interact through a communication network. The client-server relationship arises through computer programs running on the respective computers and having a client-server relationship with each other. The server may be a cloud server, a server in a distributed system, or a server integrated with a blockchain.

[0112] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in this application can be achieved. This is not a limitation herein.

[0113] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A composite reservoir adjustment and flooding method, characterized in that: include: Conduct reservoir structure analysis on the target reservoir and obtain structural analysis results; Determining a composite profile adjustment and flooding system corresponding to the target reservoir based on the structural analysis results; The composite profile adjustment and displacement system includes: a first system, a second system, and a third system; the first system is used to plug the first fracture of the target oil reservoir; the second system is used to displace the remaining oil in the second fracture of the target oil reservoir; and the third system is used to imbibe the remaining oil in the third fracture of the target oil reservoir; Determining the composite profile adjustment and displacement system corresponding to the target oil reservoir according to the structural analysis result includes: determining structural characteristics of a first fracture, a second fracture, and a third fracture included in the target oil reservoir based on the structural analysis result; the fracture aperture of the first fracture is greater than the fracture aperture of the second fracture; the fracture aperture of the second fracture is greater than the fracture aperture of the third fracture; determining the first system based on the structural characteristics of the first fracture; determining the second system based on the structural characteristics of the second fracture; determining the third system based on the structural characteristics of the third fracture; and determining the composite profile adjustment and displacement system based on the first system, the second system, and the third system. Performing physical simulation analysis on the target oil reservoir injected with the composite profile adjustment and displacement system to obtain simulation analysis results corresponding to the target oil reservoir; the simulation analysis results represent the remaining oil recovery rate of the target oil reservoir; The performing of a physical simulation analysis on a target oil reservoir injected with the composite profile adjustment and displacement system to obtain a simulation analysis result corresponding to the target oil reservoir comprises: sequentially injecting the first system, the second system, and the third system into an experimental model corresponding to the target oil reservoir to obtain a simulated oil reservoir; performing the physical simulation analysis on the simulated oil reservoir to obtain a fracture plugging rate and an oil recovery rate corresponding to cores with different fracture apertures included in the simulated oil reservoir; and determining the simulation analysis result corresponding to the target oil reservoir based on the fracture plugging rate and the oil recovery rate; In response to the simulation analysis result meeting the set oil and gas adjustment and displacement conditions, a oil and gas adjustment and displacement scheme corresponding to the target reservoir is determined based on the composite oil and gas adjustment and displacement system.

2. The method according to claim 1, characterized in that The determining the first system based on the structural characteristics of the first crack includes: determining a first target agent corresponding to blocking the first crack based on the structural characteristics of the first crack; A first system corresponding to the first target agent is generated; the first target agent includes at least inorganic expanding particles and organic expanding particles.

3. The method according to claim 1, characterized in that The determining of the second system based on the structural characteristics of the second crack includes: determining a second target agent corresponding to displacing the remaining oil in the second fracture based on the structural characteristics of the second fracture; A second system corresponding to the second target agent is generated; the second target agent at least includes a multipolymer gel; the multipolymer gel is composed of a multipolymer, a cross-linking agent and a stabilizer.

4. The method according to claim 1, wherein The determining of the third system based on the structural characteristics of the third crack includes: determining, based on the structural characteristics of the third fracture, a third target agent corresponding to the residual oil absorbed into the third fracture; A third system corresponding to the third target agent is generated; the third target agent at least includes a small molecule sorbent; and the small molecule sorbent is composed of small molecule aggregates.

5. The method according to claim 1, wherein In response to the simulation analysis result satisfying the set flooding condition, determining a flooding scheme corresponding to the target reservoir based on the composite flooding system includes: In response to the simulation analysis result satisfying the set flow control condition, a target slug combination corresponding to the target reservoir is determined from preset slug combinations based on the composite flow control system; the target slug combination includes at least one of a flow control slug, an isolation slug, and a displacement slug; Determining the dosage of the reagent corresponding to the target reservoir based on the size of the target slug combination and the concentration of the target reagent in the composite profile adjustment and displacement system; Based on the target slug combination and the reagent dosage, a displacement scheme corresponding to the target reservoir is determined.

6. The method according to claim 5, characterized in that The method further comprises: Obtaining construction process requirements for the target oil reservoir; Determining construction parameters corresponding to the injection of the composite profile control and displacement system into the target reservoir based on the construction process requirements, the target slug combination, and the reagent dosage; the construction parameters at least include: the order of injecting the composite profile control and displacement system and the reagent injection amount of the composite profile control and displacement system; Based on the construction parameters, a construction plan for the target oil reservoir is determined.

7. A composite oil reservoir adjustment and displacement device, characterized in that: include: Analysis module, used to perform reservoir structure analysis on target reservoirs and obtain structural analysis results; A profile adjustment and displacement module, configured to determine a composite profile adjustment and displacement system corresponding to the target reservoir based on the structural analysis results; The composite profile adjustment and displacement system includes: a first system, a second system, and a third system; the first system is used to plug the first fracture of the target oil reservoir; the second system is used to displace the remaining oil in the second fracture of the target oil reservoir; and the third system is used to imbibe the remaining oil in the third fracture of the target oil reservoir; Determining the composite profile adjustment and displacement system corresponding to the target oil reservoir according to the structural analysis result includes: determining structural characteristics of a first fracture, a second fracture, and a third fracture included in the target oil reservoir based on the structural analysis result; the fracture aperture of the first fracture is greater than the fracture aperture of the second fracture; the fracture aperture of the second fracture is greater than the fracture aperture of the third fracture; determining the first system based on the structural characteristics of the first fracture; determining the second system based on the structural characteristics of the second fracture; determining the third system based on the structural characteristics of the third fracture; and determining the composite profile adjustment and displacement system based on the first system, the second system, and the third system. A simulation module is used to perform physical simulation analysis on the target oil reservoir injected with the composite profile adjustment and displacement system to obtain simulation analysis results corresponding to the target oil reservoir; the simulation analysis results represent the remaining oil recovery rate of the target oil reservoir; The performing of a physical simulation analysis on a target oil reservoir injected with the composite profile adjustment and displacement system to obtain a simulation analysis result corresponding to the target oil reservoir comprises: sequentially injecting the first system, the second system, and the third system into an experimental model corresponding to the target oil reservoir to obtain a simulated oil reservoir; performing the physical simulation analysis on the simulated oil reservoir to obtain a fracture plugging rate and an oil recovery rate corresponding to cores with different fracture apertures included in the simulated oil reservoir; and determining the simulation analysis result corresponding to the target oil reservoir based on the fracture plugging rate and the oil recovery rate; The determination module is configured to determine a control and displacement scheme corresponding to the target reservoir based on the composite control and displacement system in response to the simulation analysis result satisfying a set control and displacement condition.

8. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 6.

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