Well drilling plugging device based on RFID
By designing rotating components, engaging components and recycling mechanisms in the drilling leak plugging device, the problem of unsolid RFID tag recycling and pipeline connection in the prior art is solved, and the stability and convenience are improved, reducing costs and environment Influence.
Patent Information
- Application Number
- CN202411473462.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing drilling leak plugging device is difficult to recover RFID tags after use, and the pipeline connection is not firm enough, which is prone to loosening due to vibration and pressure, which increases costs and has potential impact on the environment.
A drilling leak plugging device based on RFID is designed, and by setting up a rotating component, a engaging component, a blocking mechanism and a recycling mechanism, a firm connection of the pipeline and an effective recycling of RFID tags are achieved. The device includes a first pipe and a second pipe, and the connecting end is provided with a rotary sleeve and a engaging assembly, a built-in reader and a negative pressure chamber, and a barrier plate and a electric slider are used to achieve the recycling of RFID tags and stable connection of the pipe. .
It improves the stability of pipeline connection and the safety of leak plugging operations, facilitates the disassembly and assembly and use of the device, reduces costs, realizes efficient recycling of RFID tags, and improves operation convenience and professionalism.
Smart Images
Figure CN119288380A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of drilling plugging equipment, and in particular to a drilling plugging device based on RFID. Background Art
[0002] Radio frequency technology, also known as wireless radio frequency identification technology, is a contactless automatic identification technology. Its basic principle is to use the transmission characteristics of radio frequency signals and spatial coupling (inductive or electromagnetic coupling) or radar reflection to achieve automatic identification of the object to be identified. The RFID system usually consists of two parts: an electronic tag (RFID tag) and a reader (RFID reader / writer).
[0003] Downhole plugging refers to the situation where underground buried equipment or pipelines such as oil fields and oil wells leak or become clogged. RFID downhole plugging equipment is a device that uses radio frequency identification technology. It can accurately identify and locate plugging points in the downhole environment, and plays a vital role in the downhole environment. However, after completing the plugging task, existing drilling plugging devices often find it difficult to effectively recover RFID tags, which not only increases costs but also may have potential impacts on the environment. In addition, when using existing drilling plugging devices, most of their pipelines are installed through threaded connections. However, when entering downhole operations, they are prone to loosening due to factors such as vibration and pressure. Therefore, in view of the problems in the prior art that plugging tools cannot recover RFID tags and the connection is not strong enough, the present invention provides an RFID-based drilling plugging device to solve the above-mentioned problems. Summary of the invention
[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides an RFID-based drilling plugging device, which has the advantages of effectively helping users to recycle RFID tags and effectively improving the firmness of pipeline connections, thereby solving the problems raised in the above-mentioned background technology.
[0005] (II) Technical solution In order to achieve the above-mentioned purpose of effectively helping users to recycle RFID tags and effectively improving the firmness of pipeline connections, the present invention provides the following technical solutions: a drilling plugging device based on RFID, comprising a first pipeline and a second pipeline, wherein a connecting end extending to the inside of the second pipeline is provided at the bottom of the first pipeline, a rotating assembly is provided on the outside of the connecting end, a clamping assembly engaged with the inside of the second pipeline is provided inside the connecting end, a reader is provided inside the first pipeline, two negative pressure bins located below the reader are provided inside the first pipeline, a connecting cavity communicating with the negative pressure bin is provided inside the inner wall of the first pipeline, a drainage pipe communicating with the inside of the connecting end is provided on the inner bottom wall of the negative pressure bin, a filter plate located at the top of the drainage pipe is provided on the inner bottom wall of the negative pressure bin, a blocking mechanism extending to the inside of the first pipeline is provided inside the negative pressure bin, and a recovery mechanism communicating with the negative pressure bin is provided inside the connecting cavity; The rotating assembly comprises a rotating sleeve, the outer side of the connecting end is threadedly connected with the rotating sleeve extending to the outside of the second pipe, and a protruding block is fixedly mounted on the inner side wall of the rotating sleeve.
[0006] Preferably, the locking assembly includes a mounting groove, a mounting groove is opened inside the inner wall of the connecting end, a support plate is movably installed inside the mounting groove, a support spring fixedly installed on the side of the support plate close to the axis of the connecting end and fixedly connected to the inner wall of the mounting groove, and a limit pin and a wedge block are fixedly installed on the side of the support plate away from the support spring, the limit pin passes through the outer side of the connecting end and engages with the inner wall of the second pipe, and the wedge block passes through the outer side of the connecting end and fits with the bottom of the protruding block.
[0007] Preferably, the blocking mechanism includes a blocking plate, the inner bottom walls of the two negative pressure bins are rotatably connected with a blocking plate extending to the inner side of the first pipe, the inner top wall of the negative pressure bin is fixedly installed with a first slide rail, the bottom of the first slide rail is slidably installed with a first electric slider, the bottom of the first electric slider is fixedly connected with a sleeve plate that fits the inner wall of the negative pressure bin, the inner top wall of the sleeve plate is fixedly installed with an electric push rod, the output end of the electric push rod is fixedly installed with an extension plate that fits the inner wall of the sleeve plate, and the bottom of the extension plate is fixedly installed with a rubber plate.
[0008] Preferably, the recovery mechanism includes a second slide rail, the inner wall of the connecting cavity is fixedly installed with the second slide rail, the outer side of the second slide rail is slidably installed with a second electric slider, a recovery frame is fixedly installed on the side of the second electric slider away from the second slide rail, a recovery bin connected to the negative pressure bin is opened inside the recovery frame, and a sealing block is fixedly installed on the bottom of the recovery frame.
[0009] Preferably, an external thread is provided on the outer side of the connecting end, a connecting groove adapted to the connecting end is provided on the inside of the second pipe, a first internal thread adapted to the connecting end is provided on the inner side wall of the connecting groove, a second internal thread adapted to the connecting end is provided on the inner side wall of the raised block, the bottom end of the raised block is inclined, and a negative pressure water pump and a water valve are fixedly installed on the drainage pipe.
[0010] Preferably, the number of the mounting grooves and the number of the support plates are both several and are distributed in a circular shape with equal distances, and the number of the support springs is several and are distributed in an equal and symmetrical manner.
[0011] Preferably, a through hole adapted to the limit pin and the wedge block is provided on the inner side wall of the connecting end, and the top of the wedge block is inclined and fits with the bottom end of the protruding block.
[0012] Preferably, a rotating rod rotatably connected to the inner wall of the negative pressure bin is fixedly installed inside the blocking plate, a driving motor is fixedly installed inside the rear side of the inner wall of the negative pressure bin, the output shaft of the driving motor is fixedly connected to the rotating rod, and a groove matching the extension plate is opened on the inner side of the sleeve plate.
[0013] Preferably, the inner bottom wall of the recovery bin is flush with the inner bottom wall of the negative pressure bin, and the sealing block is a rubber product.
[0014] (III) Beneficial effects Compared with the prior art, the present invention provides a drilling plugging device based on RFID, which has the following beneficial effects: 1. The RFID-based drilling plugging device, by setting the matching connection of the first pipe, the second pipe and the connecting end, and by the matching of the support plate, the support spring, the limit pin and the wedge block, the connecting end is engaged and limited by a plurality of limit pins after being threadedly connected with the second pipe, thereby effectively helping the user to improve the connection firmness of the pipe of the device, improve the stability of the plugging operation, and effectively avoid the problem of loose pipes that may occur in downhole operations. When disassembling and assembling, the user can drive the raised block to rotate and move downward through the rotating sleeve, and the raised block pushes the support plate through the wedge block to squeeze the support spring, so that the limit pin can be disengaged, and the first pipe or the second pipe can be rotated to be disassembled, which is convenient for the user.
[0015] 2. The RFID-based drilling plugging device is provided with a blocking plate. When the RFID tag enters the sensing area of the reader, the blocking plate can be driven to swing by controlling the driving motor, so that the two blocking plates are closed to block the RFID tag, so that the RFID tag will not continue to move downward, and then the blocking plate is driven to swing by the driving motor again, so that the RFID tag is driven into the negative pressure bin and the negative pressure bin is closed, and the mud in the negative pressure bin continues to be discharged directly from the connection end to the second pipe through the drainage pipe. At this time, the sleeve plate, the extension plate and the rubber plate can be driven to move by the cooperation of the first slide rail and the first electric slider, and the extension plate is driven to move downward by controlling the electric push rod to make the rubber plate fit with the bottom wall of the negative pressure bin, so that the RFID tag is pushed into the recovery bin, and finally the RFID tag is recovered by the cooperation of the second slide rail and the second electric slider. When the two blocking plates are in the open state, the sealing block seals the negative pressure bin under the cooperation of the second slide rail and the second electric slider. Through the design of this structure, it effectively helps users to recycle RFID tags, reduces the use cost of the device, greatly improves the convenience and professionalism of the device operation, and facilitates the use of users. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an RFID-based drilling plugging device proposed by the present invention; Figure 2 A three-dimensional schematic diagram of the connection between the structural connection end of a drilling plugging device based on RFID and a second pipeline proposed by the present invention; Figure 3 A three-dimensional schematic diagram of a structural rotating assembly of a drilling plugging device based on RFID proposed by the present invention; Figure 4 A three-dimensional schematic diagram of the connection between the structural connection end of a drilling plugging device based on RFID and a snap-fit assembly proposed by the present invention; Figure 5 A three-dimensional schematic diagram of a structural engaging assembly of a drilling plugging device based on RFID proposed by the present invention; Figure 6 This is a three-dimensional schematic diagram of the internal section of a first pipeline of a drilling plugging device structure based on RFID proposed by the present invention; Figure 7 This is a three-dimensional schematic diagram of the connection between the first pipeline and the blocking mechanism of the RFID-based drilling plugging device structure proposed by the present invention; Figure 8 A three-dimensional schematic diagram of a structural blocking mechanism of a drilling plugging device based on RFID proposed by the present invention; Fig. 9 This is a three-dimensional schematic diagram of the closed state of the blocking plate of the RFID-based drilling plugging device structure proposed by the present invention.
[0017] In the figure: 1. first pipeline; 2. second pipeline; 3. connecting end; 4. rotating assembly; 41. rotating sleeve; 42. protruding block; 5. engaging assembly; 51. mounting groove; 52. supporting plate; 53. supporting spring; 54. limiting pin; 55. wedge block; 6. reader / writer; 7. negative pressure bin; 8. blocking mechanism; 81. blocking plate; 82. first slide rail; 83. first electric slider; 84. sleeve plate; 85. electric push rod; 86. extension plate; 87. rubber plate; 9. recovery mechanism; 91. second slide rail; 92. second electric slider; 93. recovery frame; 94. recovery bin; 95. sealing block; 10. connecting cavity; 11. drainage pipe; 12. filter grid plate. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] See also Figure 1-9A drilling plugging device based on RFID includes a first pipe 1 and a second pipe 2. The bottom of the first pipe 1 is fixedly connected with a connecting end 3 extending to the inside of the second pipe 2. The outer thread of the connecting end 3 is threadedly installed with a rotating component 4. The rotating component 4 includes a rotating sleeve 41. The outer thread of the connecting end 3 is threadedly connected with the rotating sleeve 41 extending to the outside of the second pipe 2. A protruding block 42 is fixedly installed on the inner side wall of the rotating sleeve 41. The outer side of the connecting end 3 is provided with an external thread. The inside of the second pipe 2 is provided with a connecting groove adapted to the connecting end 3. The inner side wall of the connecting groove is provided with a first internal thread adapted to the connecting end 3. The inner side wall of the protruding block 42 is provided with a protruding block 42 adapted to the connecting end 3. The second internal thread matched with the end 3, the bottom end of the raised block 42 is inclined, a negative pressure water pump and a water valve are fixedly installed on the drainage pipe 11, and a clamping component 5 that is engaged with the inside of the second pipe 2 is movably installed inside the connecting end 3, and the clamping component 5 includes a mounting groove 51, and a mounting groove 51 is opened inside the inner wall of the connecting end 3, and a support plate 52 is movably installed inside the mounting groove 51. The number of mounting grooves 51 and the number of support plates 52 are both several and are distributed in an annular manner with equal distances. A support spring 53 fixedly connected to the inner wall of the mounting groove 51 is fixedly installed on one side of the support plate 52 close to the axis of the connecting end 3. The number of support springs 53 is several and is symmetrically distributed with equal distances. A limit pin 54 and a wedge block 55 are fixedly installed on one side of the support plate 52 away from the support spring 53. The limit pin 54 penetrates to the outside of the connecting end 3 and engages with the inner wall of the second pipe 2. The wedge block 55 penetrates to the outside of the connecting end 3 and fits with the bottom of the raised block 42. A through hole compatible with the limit pin 54 and the wedge block 55 is opened on the inner side wall of the connecting end 3. The top of the wedge block 55 is inclined and fits with the bottom end of the raised block 42. The inclined design of the bottom end of the raised block 42 and the top of the wedge block 55 can facilitate mutual pushing and displacement. The RFID-based drilling plugging device is connected by setting the first pipe 1, the second pipe 2 and the connecting end 3. At the same time, through the cooperation of the support plate 52, the support spring 53, the limit pin 54 and the wedge block 55, the connection end 3 is engaged and limited by a plurality of limit pins 54 after being threadedly connected with the second pipe 2, thereby effectively helping the user to improve the connection firmness of the pipe of the device, improving the stability of the plugging operation, and effectively avoiding the problem of loose pipes that may occur during downhole operations. When disassembling and assembling, the user can drive the raised block 42 to rotate and move downward by the rotating sleeve 41, and the raised block 42 pushes the support plate 52 through the wedge block 55 to squeeze the support spring 53, so that the limit pin 54 can be disengaged, and the first pipe 1 or the second pipe 2 can be rotated to be split.
[0020] A reader / writer 6 is fixedly installed inside the first pipe 1, two negative pressure chambers 7 are opened inside the first pipe 1 and are located below the reader / writer 6, a connecting cavity 10 connected to the negative pressure chamber 7 is opened inside the inner wall of the first pipe 1, the inner bottom wall of the negative pressure chamber 7 is connected to a drainage pipe 11 connected to the inside of the connecting end 3, a filter plate 12 located on the top of the drainage pipe 11 is fixedly installed on the inner bottom wall of the negative pressure chamber 7, it should be noted that the grid size of the filter plate 12 needs to be smaller than the diameter of the RFID tag, a blocking mechanism 8 extending to the inside of the first pipe 1 is movably installed inside the negative pressure chamber 7, the blocking mechanism 8 includes a blocking plate 81, the inner bottom walls of the two negative pressure chambers 7 are rotatably connected to the blocking plate 81 extending to the inside of the first pipe 1, the inner bottom walls of the blocking plates 81 are fixedly installed to the inside of the blocking plate 81 A rotating rod rotatably connected to the inner wall of the negative pressure bin 7 is fixedly installed, a driving motor is fixedly installed inside the rear side of the inner wall of the negative pressure bin 7, the output shaft of the driving motor is fixedly connected to the rotating rod, a first slide rail 82 is fixedly installed on the inner top wall of the negative pressure bin 7, a first electric slider 83 is slidably installed on the bottom of the first slide rail 82, a sleeve plate 84 affixed to the inner wall of the negative pressure bin 7 is fixedly connected to the bottom of the first electric slider 83, an electric push rod 85 is fixedly installed on the inner top wall of the sleeve plate 84, an extension plate 86 affixed to the inner wall of the sleeve plate 84 is fixedly installed on the output end of the electric push rod 85, a groove matching the extension plate 86 is provided on the inner side of the sleeve plate 84, a rubber plate 87 is fixedly installed on the bottom of the extension plate 86, the setting of the rubber plate 87 can avoid scratching the bottom of the negative pressure bin 7, the connecting cavity 1 0 is fixedly installed with a recovery mechanism 9 connected with the negative pressure bin 7, the recovery mechanism 9 includes a second slide rail 91, the inner wall of the connecting cavity 10 is fixedly installed with the second slide rail 91, the outer side of the second slide rail 91 is slidably installed with a second electric slider 92, the side of the second electric slider 92 away from the second slide rail 91 is fixedly installed with a recovery frame 93, the interior of the recovery frame 93 is provided with a recovery bin 94 connected with the negative pressure bin 7, the bottom of the recovery frame 93 is fixedly installed with a sealing block 95, the inner bottom wall of the recovery bin 94 is flush with the inner bottom wall of the negative pressure bin 7, the sealing block 95 is a rubber product, the RFID-based drilling plugging device, by setting a blocking plate 81, when the RFID tag enters the sensing area of the reader / writer 6, the blocking plate 81 can be driven to swing by controlling the driving motor The RFID tag is moved so that the two blocking plates 81 are closed to block the RFID tag, so that the RFID tag does not continue to move downward, and then the blocking plate 81 is driven to swing by the driving motor again, so that the RFID tag is driven into the negative pressure bin 7 and the negative pressure bin 7 is closed, and the mud in the negative pressure bin 7 is directly discharged from the connecting end 3 to the second pipe 2 through the drainage pipe 11. At this time, the sleeve plate 84, the extension plate 86 and the rubber plate 87 can be driven to move by the cooperation of the first slide rail 82 and the first electric slider 83, and the extension plate 86 is driven to move downward by controlling the electric push rod 85 to make the rubber plate 87 fit with the bottom wall of the negative pressure bin 7, thereby pushing the RFID tag into the recovery bin 94, and finally, the second slide rail 92 is cooperated with the second electric slider 92.When the two blocking plates 81 are in the open state, the sealing block 95 seals the negative pressure chamber 7 under the cooperation of the second slide rail 92 and the second electric slider 92. Through the design of this structure, it effectively helps users to recycle RFID tags, reduces the use cost of the device, and greatly improves the convenience and professionalism of the device operation. It should be noted that the specific structure and control principle of the cooperation between the first slide rail 82 and the first electric slider 83 and the cooperation between the second slide rail 92 and the second electric slider 92 are common knowledge of those skilled in the art, and are not the innovation of this application, so they will not be elaborated here.
[0021] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0022] In summary, the RFID-based drilling plugging device, by setting the matching connection of the first pipe 1, the second pipe 2 and the connecting end 3, and by the matching of the support plate 52, the support spring 53, the limit pin 54 and the wedge block 55, the connecting end 3 is engaged and limited by a plurality of limit pins 54 after being threadedly connected with the second pipe 2, thereby effectively helping the user to improve the connection firmness of the pipe of the device, improve the stability of the plugging operation, and effectively avoid the problem of loose pipes that may occur during downhole operations. When disassembling and assembling, the user can drive the raised block 42 to rotate and move downward through the rotating sleeve 41, and the raised block 42 pushes the support plate 52 through the wedge block 55 to squeeze the support spring 53, so that the limit pin 54 can be disengaged, and the first pipe 1 or the second pipe 2 can be rotated to be disassembled. By setting the blocking plate 81, when the RFID tag enters the sensing area of the reader 6, the blocking plate 81 can be driven to swing by controlling the driving motor, so that the two blocking plates 81 are closed to block the RFID tag, so that the RFID tag will not continue to move downward, and then After that, the blocking plate 81 is driven to swing by the driving motor again, so that the RFID tag is driven into the negative pressure bin 7 and the negative pressure bin 7 is closed. The mud in the negative pressure bin 7 is directly discharged from the connection end 3 to the second pipe 2 through the drainage pipe 11. At this time, the sleeve plate 84, the extension plate 86 and the rubber plate 87 can be driven to move by the cooperation of the first slide rail 82 and the first electric slider 83. At the same time, the extension plate 86 is driven to move downward by controlling the electric push rod 85 so that the rubber plate 87 fits with the bottom wall of the negative pressure bin 7, thereby pushing the RFID tag into the recovery bin 94. Finally, the RFID tag is recovered by the cooperation of the second slide rail 92 and the second electric slider 92. When the two blocking plates 81 are in the open state, the sealing block 95 blocks the negative pressure bin 7 under the cooperation of the second slide rail 92 and the second electric slider 92. Through the design of this structure, it is effectively helped for users to recycle RFID tags, reduces the use cost of the device, greatly improves the convenience and professionalism of the device operation, facilitates users to use, and solves the problems raised in the above-mentioned background technology.
[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.
[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A drilling plugging device based on RFID, comprising a first pipeline (1) and a second pipeline (2), characterized in that: The bottom of the first pipe (1) is provided with a connection end (3) extending into the interior of the second pipe (2), the outer side of the connection end (3) is provided with a rotating assembly (4), the interior of the connection end (3) is provided with a locking assembly (5) that is engaged with the interior of the second pipe (2), the interior of the first pipe (1) is provided with a reader (6), the interior of the first pipe (1) is provided with two negative pressure chambers (7) located below the reader (6), the interior of the inner wall of the first pipe (1) is provided with a connecting cavity (10) that is connected to the negative pressure chamber (7), the inner bottom wall of the negative pressure chamber (7) is provided with a drainage pipe (11) that is connected to the interior of the connection end (3), the inner bottom wall of the negative pressure chamber (7) is provided with a filter plate (12) located at the top of the drainage pipe (11), the interior of the negative pressure chamber (7) is provided with a blocking mechanism (8) that extends to the inside of the first pipe (1), and the interior of the connecting cavity (10) is provided with a recovery mechanism (9) that is connected to the negative pressure chamber (7); The rotating assembly (4) comprises a rotating sleeve (41), the outer side of the connecting end (3) is threadedly connected to the rotating sleeve (41) extending to the outside of the second pipe (2), and the inner side wall of the rotating sleeve (41) is fixedly mounted with a protruding block (42).
2. The RFID-based drilling plugging device according to claim 1, characterized in that: The clamping assembly (5) comprises a mounting groove (51), the inner wall of the connecting end (3) is provided with the mounting groove (51), a support plate (52) is movably mounted inside the mounting groove (51), a support spring (53) fixedly mounted on a side of the support plate (52) close to the axis of the connecting end (3) and connected to the inner wall of the mounting groove (51), and a limit pin (54) and a wedge block (55) are fixedly mounted on a side of the support plate (52) away from the support spring (53), the limit pin (54) passes through the outer side of the connecting end (3) and is clamped with the inner wall of the second pipe (2), and the wedge block (55) passes through the outer side of the connecting end (3) and is in contact with the bottom of the protruding block (42).
3. The RFID-based drilling plugging device according to claim 2, characterized in that: The blocking mechanism (8) comprises a blocking plate (81), the inner bottom walls of the two negative pressure bins (7) are rotatably connected to the blocking plate (81) extending to the inner side of the first pipe (1), the inner top wall of the negative pressure bin (7) is fixedly mounted with a first slide rail (82), the bottom of the first slide rail (82) is slidably mounted with a first electric slider (83), the bottom of the first electric slider (83) is fixedly connected with a sleeve plate (84) in contact with the inner wall of the negative pressure bin (7), the inner top wall of the sleeve plate (84) is fixedly mounted with an electric push rod (85), the output end of the electric push rod (85) is fixedly mounted with an extension plate (86) in contact with the inner wall of the sleeve plate (84), and the bottom of the extension plate (86) is fixedly mounted with a rubber plate (87).
4. The RFID-based drilling plugging device according to claim 3, characterized in that: The recovery mechanism (9) comprises a second slide rail (91), the second slide rail (91) is fixedly mounted on the inner side wall of the connecting cavity (10), a second electric slider (92) is slidably mounted on the outer side of the second slide rail (91), a recovery frame (93) is fixedly mounted on the side of the second electric slider (92) away from the second slide rail (91), a recovery bin (94) connected to the negative pressure bin (7) is provided inside the recovery frame (93), and a sealing block (95) is fixedly mounted on the bottom of the recovery frame (93).
5. The RFID-based drilling plugging device according to claim 1, characterized in that: The outer side of the connecting end (3) is provided with an external thread, the interior of the second pipe (2) is provided with a connecting groove adapted to the connecting end (3), the inner side wall of the connecting groove is provided with a first internal thread adapted to the connecting end (3), the inner side wall of the protruding block (42) is provided with a second internal thread adapted to the connecting end (3), the bottom end of the protruding block (42) is inclined, and a negative pressure water pump and a water valve are fixedly mounted on the drainage pipe (11).
6. The RFID-based drilling plugging device according to claim 2, characterized in that: The number of the mounting grooves (51) and the number of the support plates (52) are both multiple and are distributed in an annular manner with equal distances, and the number of the support springs (53) are multiple and are distributed in an equal and symmetrical manner.
7. The RFID-based drilling plugging device according to claim 2, characterized in that: A through hole adapted to the limit pin (54) and the wedge block (55) is provided on the inner side wall of the connecting end (3); the top of the wedge block (55) is inclined and fits with the bottom of the protruding block (42).
8. The RFID-based drilling plugging device according to claim 3, characterized in that: A rotating rod rotatably connected to the inner wall of the negative pressure chamber (7) is fixedly installed inside the blocking plate (81), a driving motor is fixedly installed inside the rear side of the inner wall of the negative pressure chamber (7), the output shaft of the driving motor is fixedly connected to the rotating rod, and a groove matching the extension plate (86) is provided on the inner side of the sleeve plate (84).
9. The RFID-based drilling plugging device according to claim 4, characterized in that: The inner bottom wall of the recovery bin (94) is flush with the inner bottom wall of the negative pressure bin (7), and the sealing block (95) is made of rubber.