Intelligent sand control screen pipe based on memory alloy structure and dynamic adjustment

Abstract

The invention belongs to the technical field of oil and gas engineering, and provides an intelligent sand control screen based on a memory alloy structure and dynamic adjusting.The intelligent sand control screen comprises an outer barrel, an inner barrel, a vibration component, an annular connecting shell, a heating component and a controller, a plurality of first holes are formed in the side wall of the outer barrel, and a fixed barrel is arranged in the center of the lower end of the outer barrel; the lower end of the inner cylinder is closed, an inserting cylinder is arranged in the center of the inner cylinder, the inner cylinder is inserted into the outer cylinder, the inserting cylinder is inserted into the fixed cylinder, a plurality of second holes are formed in the inner cylinder, the vibration component is arranged in the inserting cylinder, the connecting shell is connected with the outer cylinder and the inner cylinder, the heating component is connected with the inner cylinder, and the heating component is connected with the outer cylinder. And the controller is connected with the vibration part and the heating part. Blocked sand can be removed, the size of holes can be controlled, and various working conditions can be met.

Description

Technical Field

[0001] The invention belongs to the technical field of petroleum engineering, and provides an intelligent sand control screen pipe based on a memory alloy structure and dynamic adjustment. Background Art

[0002] In the oil and gas extraction sector, sand control screens are critical equipment for ensuring downhole production safety and efficiency. Traditional sand control screens generally adopt a fixed aperture design, and their screening mechanism relies primarily on physical sieving. While simple in structure and low in cost, they have many limitations in practical application.

[0003] First, in high-sand formation conditions, fixed-aperture screens are prone to sand accumulation and blockage, resulting in a sharp reduction in effective flow area and seriously affecting oil and gas production.

[0004] Secondly, when the formation pressure fluctuates greatly, the fixed aperture cannot be adaptively adjusted according to the fluid characteristics, which may cause excessive filtration leading to a decrease in production capacity, or insufficient screening causing sand erosion of the equipment.

[0005] Third, under complex working conditions such as heavy oil thermal recovery, the physical properties of the oil change due to temperature changes, and the fixed aperture design is difficult to meet the sand control needs of different working conditions.

[0006] Although existing technologies have made certain progress in screen material selection, surface treatment, structural optimization, etc., they have not yet fundamentally solved the problem of the inability to dynamically adjust the aperture. Moreover, although some mechanically adjustable sand control devices can achieve limited aperture changes, their adjustment mechanisms are complex, have poor reliability, and cannot achieve real-time continuous adjustment, making it difficult to meet the needs of intelligent oil and gas development. Summary of the Invention

[0007] In order to solve the above technical problems, the present invention provides an intelligent sand control screen based on a memory alloy structure and dynamic adjustment, which can remove clogged sand particles and control the size of holes to meet various working conditions.

[0008] The technical solution of the present invention includes: The outer cylinder has a plurality of first holes on its side wall, and a fixed cylinder is provided at the center of the lower end of the outer cylinder.

[0009] The inner cylinder has a closed lower end and a plug-in cylinder at the center. The inner cylinder is plugged into the outer cylinder, and the plug-in cylinder is plugged into the fixed cylinder. A plurality of second holes are provided on the inner cylinder. The inner cylinder adopts a two-way memory metal. When heated, the inner cylinder shrinks in the height direction and the second holes become smaller. When the heating is canceled, the inner cylinder returns to its original shape.

[0010] The vibration component is arranged in the plug-in cylinder, and the vibration component drives the plug-in cylinder to vibrate.

[0011] The elastic component has one end connected to the side wall of the fixed cylinder and the other end connected to the bottom of the inner cylinder.

[0012] The annular connecting shell is connected to the outer cylinder and the inner cylinder respectively to fix the outer cylinder and the inner cylinder.

[0013] The heating component is connected to the inner cylinder and heats the inner cylinder.

[0014] The controller is connected to the vibration component and the heating component respectively.

[0015] Furthermore, a pressure sensor is provided on the inner side of the connecting shell, the pressure sensor detects the pressure of the fluid, and the pressure sensor is communicatively connected with the controller.

[0016] Furthermore, a flow rate sensor is provided on the inner side of the connecting shell, the flow rate sensor detects the flow rate of the fluid, and the flow rate sensor is communicatively connected with the controller.

[0017] Furthermore, a temperature sensor is provided on the inner side of the connecting shell, the temperature sensor detects the temperature of the fluid, and the temperature sensor is communicatively connected to the controller.

[0018] Furthermore, the vibration component includes an annular vibration movable block, a vibration iron core and a vibration coil. The vibration coil is sleeved on the vibration iron core, and the vibration iron core is located on the vibration movable block.

[0019] The technical solution provided by the embodiment of the present invention has the following advantages compared with the prior art: During use, the outer cylinder is made of rigid material, and the underground oil and gas flow from the first hole of the outer cylinder and the second hole of the inner cylinder to the inside of the inner cylinder. Since the underground oil and gas flow is often accompanied by sand particles, the first hole of the outer cylinder blocks some larger sand particles, and the second hole further blocks the sand particles. When the first hole and the second hole are blocked, the vibration component starts to vibrate, and the vibration is used to shake off the sand particles at the first hole and the second hole to avoid accumulation and blockage. When the physical properties of the oil change, the inner cylinder is heated by the heating component, and the inner cylinder shrinks in the height direction, and the second hole becomes smaller, thereby realizing the change of the aperture of the second hole to meet the sand control requirements of different working conditions. The size of the second hole can be adjusted according to the heating temperature of the heating component. Compared with the existing technology, the present invention can remove the blocked sand particles and control the size of the hole to meet various working conditions.

[0020] Other advantages, objectives and features of the present invention will be reflected in part from the following description and will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention; Figure 2 A half-sectional view of the overall structure of one embodiment of the present invention; Figure 3 This is an application scenario diagram of one embodiment of the present invention; Figure 4 This is a schematic structural diagram of a connection shell and a sensor according to one embodiment of the present invention; Figure 5 This is a schematic diagram of the outer cylinder structure of one embodiment of the present invention; Figure 6 This is a schematic diagram of the inner cylinder structure of one embodiment of the present invention; Figure 7 This is a schematic structural diagram of a vibration component according to one embodiment of the present invention.

[0023] Reference numerals: 101. Outer cylinder; 102. Inner cylinder; 103. Pressure sensor; 104. Temperature sensor; 105. Flow rate sensor; 106. Power supply cable; 107. Connecting shell; 108. Elastic component; 109. Fixed cylinder; 1021. Plug-in cylinder; 1091. Vibrating movable block; 1092. Vibrating iron core; 1093. Vibrating coil; 110. Controller; 111. Power module. DETAILED DESCRIPTION

[0024] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] In the description of the embodiments of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0027] In the description of the embodiment of the present invention, each component requiring electricity is powered by the power module 111 through the power supply cable 106, and the communication connection is connected to the controller 110 through the communication cable.

[0028] like Figures 1 to 7 As shown, the present invention provides an intelligent sand control screen based on a memory alloy structure and dynamic adjustment, comprising: The outer cylinder 101 has a plurality of first holes on its side wall, and a fixed cylinder 109 is provided at the center of the lower end of the outer cylinder 101 .

[0029] The inner cylinder 102 has a closed lower end and a plug-in cylinder 1021 at the center. The inner cylinder 102 is plugged into the outer cylinder 101, and the plug-in cylinder 1021 is plugged into the fixed cylinder 109. A plurality of second holes are provided on the inner cylinder 102. The inner cylinder 102 is made of bidirectional memory metal. When heated, the inner cylinder 102 shrinks in the height direction and the second holes become smaller. When the heating is canceled, the inner cylinder 102 returns to its original shape.

[0030] The vibration component is disposed within the plug-in barrel 1021 and drives the plug-in barrel 1021 to vibrate. The vibration component includes an annular vibration movable block 1091, a vibration core 1092, and a vibration coil 1093. The vibration coil 1093 is sleeved on the vibration core 1092, and the vibration core 1092 is located on the vibration movable block 1091.

[0031] The elastic component 108 has one end connected to the side wall of the fixed cylinder 109 and the other end connected to the bottom of the inner cylinder 102 .

[0032] The annular connecting shell 107 is connected to the outer cylinder 101 and the inner cylinder 102 respectively to fix the outer cylinder 101 and the inner cylinder 102.

[0033] The heating component is connected to the inner cylinder 102 to heat the inner cylinder 102 .

[0034] The controller 110 is connected to the vibration component and the heating component respectively.

[0035] During use, the outer cylinder 101 is made of a rigid material, and the underground oil and gas flow from the first hole of the outer cylinder 101 and the second hole of the inner cylinder 102 to the inside of the inner cylinder 102. Since the underground oil and gas flow is often accompanied by sand particles, the first hole of the outer cylinder 101 blocks some larger sand particles, and the second hole further blocks the sand particles. When the first hole and the second hole are blocked, the vibration component starts to vibrate, and the vibration is used to shake off the sand particles at the first hole and the second hole to avoid accumulation and blockage. When the physical properties of the oil change, the inner cylinder 102 is heated by the heating component, and the inner cylinder 102 shrinks in the height direction, and the second hole becomes smaller, thereby changing the aperture of the second hole to meet the sand control requirements of different working conditions. The size of the second hole can be adjusted according to the heating temperature of the heating component. Compared with the existing technology, the present invention can remove blocked sand particles and control the size of the hole to meet various working conditions.

[0036] Specifically: The outer cylinder 101 serves as the outer structure of the sand control screen, and the several first holes set on its side wall are the initial channels for fluids such as oil and gas to enter the screen. In the downhole environment, when oil and gas carrying sand particles flow from the formation into the screen, they will first pass through the first holes of the outer cylinder 101. The existence of the first holes allows the fluid to smoothly enter the interior of the screen, providing a basic channel for subsequent sand control and fluid transportation. At the same time, the fixed cylinder 109 set at the center of the lower end of the outer cylinder 101 plays the role of supporting and positioning the inner cylinder 102. The fixed cylinder 109 cooperates with the plug-in cylinder 1021 of the inner cylinder 102 to ensure the stability of the inner cylinder 102 during operation, so that the inner cylinder 102 can move within a certain range without deviation or shaking, thereby ensuring the reliability and stability of the entire screen structure and providing a stable working environment for the inner cylinder 102 to achieve the sand control function.

[0037] Specifically, inner cylinder 102 is made of a bidirectional memory metal, a special material with unique thermal deformation properties. When downhole operating conditions require adjustment of the screen diameter, a heating component heats inner cylinder 102. As the temperature rises, inner cylinder 102, made of bidirectional memory metal, contracts in height. This shrinks the second hole in inner cylinder 102, thereby reducing the screen diameter and providing a finer screening of passing sand particles. This effectively blocks the passage of larger sand particles and prevents sand accumulation and blockage. When heating is removed, inner cylinder 102 returns to its original shape due to the memory effect, and the second hole also returns to its initial size, allowing the screen diameter to be flexibly adjusted according to different operating conditions. The lower end of inner cylinder 102 is sealed, and a plug-in cylinder 1021 is located in the center. This plug-in cylinder 1021 plugs into fixed cylinder 109. This design ensures the guidance and stability of inner cylinder 102 during contraction and recovery, while also facilitating its coordinated operation with outer cylinder 101. The inner cylinder 102 uses a two-way memory metal to achieve dynamic adjustment of the aperture, fundamentally solving the limitations of traditional fixed-aperture screens. In high-sand formations, the aperture can be reduced to reduce the entry of sand particles, avoid sand accumulation and blockage, maintain the effective flow area, and thus increase oil and gas production; in the case of large fluctuations in formation pressure, the aperture can be adjusted in real time according to the fluid characteristics to avoid problems such as excessive filtration or insufficient screening, ensuring stable production capacity; in complex working conditions such as heavy oil thermal recovery, the aperture can be flexibly changed according to temperature changes to meet the sand control needs of different working conditions. This dynamic adjustment function improves the adaptability and versatility of the screen, and can be widely used in various complex oil and gas production environments, reducing the cost of frequent equipment replacement due to the screen not being suitable for the working conditions, and improving the intelligence and efficiency of oil and gas production.

[0038] Specifically, the vibration component is arranged in the plug-in cylinder 1021, and its main working principle is based on electromagnetic induction. The vibration coil 1093 in the vibration component is sleeved on the vibration core 1092, and the vibration core 1092 is located in the vibration movable block 1091. When the controller 110 energizes the vibration coil 1093, according to the principle of electromagnetic induction, the vibration coil 1093 will generate a magnetic field, and the magnetic field interacts with the vibration core 1092, causing the vibration core 1092 to generate an electromagnetic force. Under the action of the electromagnetic force, the vibration core 1092 drives the vibration movable block 1091 to vibrate, and then causes the plug-in cylinder 1021 to vibrate. Since the inner cylinder 102 is connected to the plug-in cylinder 1021, it eventually drives the inner cylinder 102 to vibrate. By adjusting the current and frequency of the vibration coil 1093 by the controller 110, the intensity and frequency of the vibration can be accurately controlled to achieve different degrees of vibration effects. This vibration can effectively prevent sand from accumulating between the inner cylinder 102 and the outer cylinder 101, and promote the smooth flow of fluid. During the oil and gas production process, sand easily accumulates in the gap between the inner cylinder 102 and the outer cylinder 101 and in the holes of the screen tube, affecting the normal operation of the screen tube and the oil and gas production. The vibration generated by the vibration component can loosen the accumulated sand and discharge it out of the screen tube along with the fluid, keeping the internal channel of the screen tube unobstructed. At the same time, the vibration can also prevent sand from forming a clogging layer on the surface of the screen tube, improve the anti-clogging ability of the screen tube, and extend the service life of the screen tube. In addition, the presence of the vibration component enables the screen tube to work stably even in harsh working conditions such as high-sand formations, reducing equipment failures and maintenance times caused by sand accumulation, reducing production costs, and improving the efficiency and economic benefits of oil and gas production.

[0039] Specifically: One end of the elastic component 108 is connected to the side wall of the fixed cylinder 109, and the other end is connected to the bottom of the inner cylinder 102. Its working principle is based on elastic deformation. When the inner cylinder 102 is heated and shrinks, it will squeeze the elastic component 108 downward. The elastic component 108 is elastically deformed under pressure and stores elastic potential energy. When the heating is canceled and the inner cylinder 102 returns to its original shape and moves upward under the action of the memory effect, the elastic component 108 releases the elastic potential energy, exerting an upward pulling force on the inner cylinder 102, helping the inner cylinder 102 to quickly and stably return to its initial position. During underground work, the elastic component 108 continues to play a role, providing buffering and reset power for the telescopic movement of the inner cylinder 102, ensuring that the inner cylinder 102 can accurately and reliably adjust the aperture under different working conditions. At the same time, the elastic component 108 can also absorb part of the impact force generated by the inner cylinder 102 during vibration, reducing the impact of vibration on the overall structure of the screen tube and improving the stability of the screen tube structure.

[0040] Specifically, the annular connecting shell 107 is connected to the outer cylinder 101 and the inner cylinder 102 respectively, and plays a role in fixing and sealing. The connecting shell 107 is tightly connected to the outer cylinder 101 and the inner cylinder 102 through a specific connection method (such as welding, threaded connection, etc.), firmly combining the outer cylinder 101 and the inner cylinder 102 to form a complete screen pipe structure, ensuring that the outer cylinder 101 and the inner cylinder 102 will not move relative to each other in the high-pressure and complex environment underground, thereby maintaining the integrity of the screen pipe structure. At the same time, the connecting shell 107 also has a certain sealing performance, preventing fluid from leaking from the connection between the outer cylinder 101 and the inner cylinder 102, ensuring that the fluid can only be filtered and flow through the first hole of the outer cylinder 101 and the second hole of the inner cylinder 102, thereby ensuring the normal working process of the sand control screen pipe. In addition, various sensors (pressure sensor 103, flow rate sensor 105, temperature sensor 104, etc.) installed inside the connecting shell 107 can monitor the relevant parameters of the fluid inside the screen tube in real time and transmit the data to the controller 110, providing a basis for the controller 110 to adjust the working state of the screen tube.

[0041] Specifically, the heating component is connected to the inner cylinder 102 and operates by converting electrical energy into thermal energy to heat the inner cylinder 102. When the controller 110 determines that the inner cylinder 102 aperture needs to be adjusted based on downhole operating conditions, it issues a command to the heating component, which begins operating. Current flows through the heating element (such as a resistance wire) within the heating component. According to Joule's law, the electrical energy is converted into thermal energy, raising the temperature of the heating element, which in turn transfers the heat to the inner cylinder 102. Because the inner cylinder 102 is made of a bidirectional memory metal material, after absorbing heat, it shrinks in height, reducing the size of the second hole and thus adjusting the sieve diameter. By adjusting the heating component's power and heating time through the controller 110, the heating temperature and degree of shrinkage of the inner cylinder 102 can be precisely controlled, thereby achieving precise adjustment of the sieve diameter.

[0042] In the embodiment provided by the present invention, a pressure sensor 103 is provided on the inner side of the connecting shell 107, and the pressure sensor 103 detects the pressure of the fluid. The flow rate sensor 105 detects the flow rate of the fluid. A temperature sensor 104 is provided on the inner side of the connecting shell 107, and the temperature sensor 104 detects the temperature of the fluid. The pressure sensor 103, the flow rate sensor 105 and the temperature sensor 104 are all communicatively connected to the controller 110 to transmit the collected information to the controller 110.

[0043] Specifically, the controller 110 serves as the "brain" of the entire sand control screen, intelligently controlling its operating status through connections with various components. The controller 110 communicates with the vibrating component, the heating component, and the pressure sensor 103, flow rate sensor 105, and temperature sensor 104 inside the connecting shell 107. The pressure sensor 103, flow rate sensor 105, and temperature sensor 104 monitor parameters such as pressure, flow rate, and temperature of the fluid inside the screen in real time and transmit the collected data to the controller 110. The controller 110 analyzes and processes this data, determining the current downhole operating conditions based on pre-set algorithms and rules. For example, if it detects excessive fluid pressure or excessive flow rate, potentially posing a risk of insufficient screening and sand erosion, the controller 110 will initiate a heating process to the heating component, causing the inner cylinder 102 to contract, reducing the aperture and enhancing the sand control effect. If it detects signs of sand accumulation inside the screen, the controller 110 will activate the vibrating component, generating vibrations to remove the accumulated sand. Through precise control of each component, the intelligent operation of the sand control screen is achieved.

[0044] Furthermore, the diameter of the first hole is larger than the diameter of the second hole.

[0045] The first holes serve as the initial pathway for fluids like oil and gas to enter the screen. Their larger pore size allows sand particles carried by the fluid to flow more smoothly into the screen, reducing the risk of blockage caused by sand accumulation at the screen entrance. The second holes, with their relatively smaller pore size, perform a secondary screening of incoming sand, retaining larger particles and allowing only smaller particles that meet the required requirements to pass through. This graded screening approach acts as a double line of defense, significantly reducing the possibility of sand blockage within the screen and ensuring smooth flow. This ensures continuous and stable oil and gas flow, avoids production declines caused by blockage, and improves the continuity and stability of oil and gas production. The larger first holes provide a wider entrance for fluids, reducing resistance to entry and allowing faster entry of fluids like oil and gas. In complex downhole environments, especially during high-flow production, the large diameter of the first holes facilitates the rapid passage of large volumes of fluid, reducing fluid retention time outside the screen and improving overall fluid delivery efficiency. In contrast, the smaller second holes focus on finer screening, ensuring effective screening while minimizing the impact on fluid flow efficiency. The cooperation between the two not only ensures the efficient passage of fluid, but also realizes the effective sand prevention function, achieving a balance between efficiency and function.

[0046] Furthermore, the pressure sensor 103 records the time difference of the oil and gas flow in the inner cylinder 102.

[0047] Initially, the second hole in inner cylinder 102 maintains its original maximum diameter. Oil and gas fluids in the formation flow through the first and second holes and into inner cylinder 102. Due to the pressure differential in the formation, the oil and gas fluids flow upward. Simultaneously, pressure sensor 103, flow rate sensor 105, and temperature sensor 104 begin operating, collecting real-time data and transmitting it to controller 110.

[0048] The temperature sensor monitors the temperature of the memory alloy tube. The data is transmitted to the ground to know the degree of change in the pore size of the inner layer of the memory alloy.

[0049] The controller 110 determines the collected information: If the data is stable, maintain the current status.

[0050] If the data is abnormal and there is a tendency for sand to come out, the controller 110 controls the heating component to heat the inner cylinder 102. The inner cylinder 102 contracts due to the heat, reducing the aperture of the second hole. The second hole blocks sand particles larger than the aperture of the second hole at this time from flowing into the inner cylinder 102 and reduces the inflow flow. At the same time, the elastic component 108 stretches.

[0051] If the pressure difference ΔP is greater than a threshold value (e.g., 1 MPa, set by the staff according to actual conditions) and the detected flow rate drops by more than 50%, it is determined to be sand blockage. The controller 110 controls the vibration component to work for a fixed time, and the vibrator sends high-frequency vibrations to clear the sand particles blocking the first hole and the second hole.

[0052] After the vibration is finished, the pressure difference ΔP and the flow rate are monitored again. If they return to normal, it means that the sand removal is successful. The controller 110 turns off the vibration, otherwise it starts the vibration again.

[0053] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0054] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and exemplary embodiments. They can be applied to a variety of fields suitable for the present invention. Further modifications will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims

1. An intelligent sand control screen based on memory alloy structure and dynamic adjustment, characterized in that: include: An outer cylinder (101) is provided with a plurality of first holes on its side wall, and a fixed cylinder (109) is provided at the center of the lower end of the outer cylinder (101); An inner cylinder (102), wherein the lower end of the inner cylinder (102) is closed and a plug-in cylinder (1021) is provided at the center thereof, wherein the inner cylinder (102) is plugged into the outer cylinder (101), and the plug-in cylinder (1021) is plugged into the fixed cylinder (109), and a plurality of second holes are provided on the inner cylinder (102). The inner cylinder (102) is made of a bidirectional memory metal. When heated, the inner cylinder (102) contracts in a height direction and the second holes become smaller. When the heating is stopped, the inner cylinder (102) returns to its original shape. a vibration component, disposed in the plug-in cylinder (1021), the vibration component driving the plug-in cylinder (1021) to vibrate; An annular connecting shell (107) is connected to the outer cylinder (101) and the inner cylinder (102) respectively, fixing the outer cylinder (101) and the inner cylinder (102); A heating component connected to the inner cylinder (102) for heating the inner cylinder (102); The controller (110) is connected to the vibration component and the heating component respectively. The controller (110) controls the vibration component to vibrate to disperse the sand particles at the first hole and the second hole. The controller (110) controls the heating component to change the size of the second hole.

2. The intelligent sand control screen based on memory alloy structure and dynamic adjustment according to claim 1, characterized in that: A pressure sensor (103) is provided on the inner side of the connection shell (107), and the pressure sensor (103) detects the pressure of the fluid. The pressure sensor (103) is communicatively connected to the controller (110).

3. The intelligent sand control screen based on memory alloy structure and dynamic adjustment according to claim 1, characterized in that: A flow rate sensor (105) is provided on the inner side of the connection shell (107), and the flow rate sensor (105) detects the flow rate of the fluid. The flow rate sensor (105) is communicatively connected to the controller (110).

4. The intelligent sand control screen based on memory alloy structure and dynamic adjustment according to claim 1, characterized in that: A temperature sensor (104) is provided on the inner side of the connection shell (107), and the temperature sensor (104) detects the temperature of the fluid. The temperature sensor (104) is communicatively connected to the controller (110).

5. The intelligent sand control screen based on memory alloy structure and dynamic adjustment according to claim 1, characterized in that: The vibration component comprises an annular vibration movable block (1091), a vibration iron core (1092) and a vibration coil (1093); The vibration coil (1093) is sleeved on the vibration iron core (1092), and the vibration iron core (1092) is located on the vibration movable block (1091).

6. The intelligent sand control screen based on memory alloy structure and dynamic adjustment according to claim 1, characterized in that: It also includes an elastic component (108), one end of which is connected to the side wall of the fixed cylinder (109), and the other end of which is connected to the bottom of the inner cylinder (102).

7. The intelligent sand control screen based on memory alloy structure and dynamic adjustment according to claim 1, characterized in that: The diameter of the first hole is larger than the diameter of the second hole.

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