Well drilling plugging device based on RFID technology

Abstract

The invention discloses a well drilling leaking stoppage device based on the RFID technology, belongs to the technical field of well drilling leaking stoppage equipment, and solves the problems that in the prior art, the underground opening and closing frequency of a leaking stoppage tool is limited, and an RFID tag cannot be recycled. The well drilling leaking stoppage device comprises a first pipeline and a second pipeline, and a water outlet of the second pipeline is fixedly connected with the first pipeline; an RFID signal receiver is fixedly arranged on the inner wall of the second pipeline, and a label recycling device is fixedly arranged below the RFID signal receiver. The label recovery device comprises a barrier plate; a negative pressure bin is arranged on the side portion of the blocking plate, a push plate is arranged in the negative pressure bin in a sliding mode, a recycling bin is arranged on the side portion of the negative pressure bin, and the push plate is used for pushing RFID tags into the recycling bin. The bottom of the negative pressure bin is connected with a water outlet pipe, a water outlet of the water outlet pipe is connected with the first pipeline, and the technical effects that underground leaking stoppage operation with infinite opening and closing times is achieved through the RFID radio frequency technology, and RFID tags are recycled are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of drilling plugging equipment, and specifically relates to a drilling plugging device based on RFID technology. Background Art

[0002] Radio Frequency Identification (RFID) is a type of automatic identification technology that uses wireless radio frequency to perform non-contact two-way data communication and read and write recording media (electronic tags or radio frequency cards) to achieve the purpose of identifying targets and exchanging data. It is considered to be one of the most promising information technologies in the 21st century.

[0003] At present, the site usually uses multiple switching circulation plugging tools to perform plugging operations without lifting the drill. Plugging operations without lifting the drill can greatly improve on-site production efficiency, reduce instrument wear, and reduce well control risks. At the same time, the circulation plugging tools can also be used to clean the wellbore with large displacement circulation. However, with the deepening of efficient development and low-cost operation models of oil fields, the demand for circulation plugging tool services is also increasing. A series of problems such as the limited number of downhole switching times of existing tools, small port flow area, and the inability to connect to the internal blowout prevention tool on the upper part are becoming increasingly prominent, which cannot further support the company's needs for efficient and safe drilling in key blocks. Now there is a need for downhole plugging equipment that can be switched downhole an unlimited number of times and has the function of RFID tag recovery. Summary of the invention

[0004] In view of the problem that the number of times the plugging tool can be switched downhole is limited and the RFID tag cannot be recovered in the prior art, the present invention provides a drilling plugging device based on RFID technology, the purpose of which is to achieve an unlimited number of switching times for downhole plugging operations through RFID radio frequency technology and to recover the RFID tag.

[0005] The technical solution adopted by the present invention is as follows: A drilling plugging device based on RFID technology, comprising: A first pipe and a second pipe, wherein a water outlet of the second pipe is fixedly connected to the first pipe; An RFID signal receiver is fixedly arranged on the inner wall of the second pipe, and a label recovery device is fixedly arranged below the RFID signal receiver; The tag recovery device comprises a blocking plate; a negative pressure chamber is arranged on the side of the blocking plate, a push plate is slidably arranged in the negative pressure chamber, a recovery chamber is arranged on the side of the negative pressure chamber, and the push plate is used to push the RFID tag into the recovery chamber; The bottom of the negative pressure chamber is connected to a water outlet pipe, and the water outlet of the water outlet pipe is connected to the first pipeline; The RFID signal receiver is signal-connected to a vertical valve plate and a side-pass valve device.

[0006] By adopting the above scheme, when it is necessary to carry out underground plugging operations, it is only necessary to put the RFID tag into the drilling well. When the RFID tag passes through the RFID signal receiver, the RFID signal receiver will control the closing of the vertical valve plate and open the side-pass valve device to carry out the side-pass process. At the same time, the blocking plate will rotate toward the axis of the drill bit. The blocking plate will block the RFID tag that continues to fall, and during the turning back, the RFID tag will be sent into the negative pressure bin. The outlet pipe in the negative pressure bin can pass the mud in the negative pressure bin into the first pipe, so that only the RFID tag is retained in the negative pressure bin. After the negative pressure drainage is completed, the push plate pushes the tag into the recovery bin, and the collection and recovery of the RFID tag can be completed through the recovery bin. Through the above structure, the control of each valve in the well and the plugging process can be completed through the RFID radio frequency technology, and the RFID tag can be recovered through the blocking plate, the negative pressure bin and the recovery bin.

[0007] The push plate comprises a first set of plates, a second set of plates is sleeved on the outer side of the first set of plates, and the first set of plates is slidably arranged in the second set of plates; An electric push rod is fixedly arranged on the top of the second set of plates, one end of the electric push rod is fixedly arranged on the second set of plates, and the other end of the electric push rod is fixedly arranged on the end of the first set of plates.

[0008] By adopting the above scheme, the push plate can be extended and retracted under the action of the electric push rod. When the RFID tag needs to be recovered, the push plate is retracted first to prevent the push plate from blocking the RFID tag from entering the negative pressure bin. After the blocking plate completely closes the negative pressure bin, the push plate is extended by the electric push rod so that the push plate can contact the bottom of the negative pressure bin, thereby ensuring that the RFID tag can be pushed into the recovery bin.

[0009] A first slide rail is fixedly provided inside the negative pressure bin, an electric slider is fixedly provided inside the push plate, the electric slider cooperates with the first slide rail, and the electric slider is signal-connected to the RFID signal receiver.

[0010] By adopting the above solution, the movement of the push plate can be controlled by the electric slider.

[0011] A filter grid plate is fixedly arranged at the bottom of the negative pressure bin, and the filter grid plate is used to retain the RFID tag in the negative pressure bin.

[0012] By adopting the above solution, the RFID tag can be prevented from being sucked into the water outlet pipe through the filter plate.

[0013] A waterproof plate is fixedly provided on the inner wall of the negative pressure chamber, a waterproof rubber layer is fixedly provided on the end of the waterproof plate, and the waterproof rubber layer is in contact with the push plate.

[0014] The above solution can prevent the mud rushing into the negative pressure chamber from directly contacting the electric slide block and the slide rail, causing the electric slide block to malfunction or the push plate to be blocked from moving.

[0015] A sealing block is fixedly arranged at the bottom of the recovery bin, and the sealing block is used to seal the negative pressure bin.

[0016] By adopting the above scheme, during the process of recycling the RFID tag, the sealing block at the bottom is collected as a sealed negative pressure bin. After the water outlet pipe completes the water pumping process of the negative pressure bin, the recycling bin is lowered and forms a channel with the negative pressure bin so that the RFID tag can be pushed into the recycling bin under the action of the push plate. By adopting the above scheme, the sealing structure of the negative pressure bin can be simplified.

[0017] A third cavity is provided on the inner wall of the first pipeline, a hydraulic rod is fixedly provided inside the third cavity, a side-pass valve plate is fixedly connected to the output end of the hydraulic rod, an opening is provided on the side wall of the first channel, and the side-pass valve plate controls the opening and closing of the opening.

[0018] By adopting the above scheme, when the hydraulic rod moves downward and the side passage valve plate closes the opening, the side passage pipeline is closed and the plugging liquid cannot flow into the underground cracks from the opening; when the hydraulic rod moves upward and the side passage valve plate opens the opening, the side passage pipeline is opened and the plugging liquid also flows from the opening into the underground cracks to complete the plugging work. By adopting the above scheme, the structure of opening and closing the side passage pipeline is further simplified.

[0019] A pressure sensor is fixedly arranged below the side-pass valve plate, and the pressure sensor signal is connected to the vertical valve plate.

[0020] By adopting the above scheme, when the hydraulic rod moves downward and contacts the pressure sensor, the pressure sensor can receive the pressure change value and convert the pressure change value into an electrical signal to control the opening and closing of the vertical valve plate. By adopting this scheme, the side-pass pipeline and the vertical valve plate can be controlled together, and the sealing ball and ball blue structure in traditional technology is no longer required, providing a basis for an unlimited number of plugging switches.

[0021] The water outlet pipe is provided with a negative pressure water pump and a water valve.

[0022] There are two blocking plates, which are respectively arranged on both sides of the second pipe. When the two blocking plates are in contact, an upwardly protruding structure is formed.

[0023] With the above solution, the protruding structure can make the RFID tag flow to the left or right side under the impact of the mud, and can be brought into the negative pressure bin when the blocking plate closes the negative pressure bin.

[0024] In summary, the technical effects of the present invention are: 1. When it is necessary to carry out underground plugging operations, it is only necessary to put the RFID tag into the drilling well. When the RFID tag passes through the RFID signal receiver, the RFID signal receiver will control the closing of the vertical valve plate and open the side-pass valve device to carry out the side-pass process. At the same time, the blocking plate will rotate toward the axis of the drill bit. The blocking plate will block the RFID tag that continues to fall, and during the turning back, the RFID tag will be sent into the negative pressure bin. The outlet pipe in the negative pressure bin can pass the mud in the negative pressure bin into the first pipeline, so that only the RFID tag is retained in the negative pressure bin. After the negative pressure drainage is completed, the push plate pushes the tag into the recovery bin, and the RFID tag can be collected and recovered through the recovery bin; through the above structure, the control of each valve in the well and the plugging process can be completed through the RFID radio frequency technology, and the RFID tag can be recovered through the blocking plate, the negative pressure bin and the recovery bin; 2. The push plate can be extended and retracted under the action of the electric push rod. When the RFID tag needs to be recovered, the push plate is retracted first to prevent the push plate from blocking the RFID tag from entering the negative pressure bin. After the blocking plate completely closes the negative pressure bin, the push plate is extended through the electric push rod so that the push plate can contact the bottom of the negative pressure bin, thereby ensuring that the RFID tag can be pushed into the recovery bin.

[0025] 3. During the RFID tag recycling process, the sealing block at the bottom is collected as a sealed negative pressure bin. After the water outlet pipe completes the water pumping process of the negative pressure bin, the recycling bin is lowered and forms a channel with the negative pressure bin so that the RFID tag can be pushed into the recycling bin under the action of the push plate. The above scheme can simplify the sealing structure of the negative pressure bin.

[0026] 4. When the hydraulic rod moves downward and contacts the pressure sensor, the pressure sensor can receive the pressure change value and convert the pressure change value into an electrical signal to control the opening and closing of the valve plate. With this solution, the side-pass pipeline and the valve plate can be controlled together, and the sealing ball and ball blue structure in traditional technology is no longer required, providing a basis for unlimited leak-proof switches. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 It is a schematic diagram of the internal structure of an embodiment of the present invention; Figure 2 is a partially enlarged schematic diagram of an embodiment of the present invention; Figure 3 It is a schematic structural diagram of a blocking plate in an open state according to an embodiment of the present invention; Figure 4 It is a schematic diagram of the push plate structure of an embodiment of the present invention.

[0028] Figure markings: 1-first pipeline; 2-second pipeline; 3-first cavity; 4-antenna; 5-reader / writer; 6-second cavity; 7-vertical valve plate; 8-support pipe; 9-hydraulic rod; 10-side valve plate; 11-opening; 12-negative pressure bin; 13-recovery bin; 14-second slide rail; 15-first slide rail; 16-waterproof plate; 17-push plate; 18-blocking plate; 19-filter plate; 20-water outlet pipe; 21-negative pressure water pump; 22-pressure sensor; 23-sealing block; 24-second set of plates; 25-electric push rod; 26-first set of plates; 27-rubber plate; 28-electric slider; 29-PLC controller; 30-single chip microcomputer. DETAILED DESCRIPTION

[0029] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0030] Combine the following Figure 1-Figure 4 The present invention is described in detail.

[0031] Embodiment 1: In this embodiment, a drilling device based on RFID technology is specifically disclosed, in which an RFID tag is mainly identified by an RFID signal receiver, so as to subsequently control the opening and closing of the valve in the device. In this application, a structure capable of recovering the RFID tag is also disclosed. After the RFID tag completes the identification work, it can be collected into the negative pressure bin 12 through the blocking plate 18, and then pushed into the recovery bin 13 through the push plate in the negative pressure bin 12. This device specifically includes: A first pipe 1 and a second pipe 2, wherein a water outlet of the second pipe 2 is fixedly connected to the first pipe 1; An RFID signal receiver is fixedly arranged on the inner wall of the second pipe 2, and a label recovery device is fixedly arranged below the RFID signal receiver; The tag recovery device includes a blocking plate 18; a negative pressure bin 12 is provided on the side of the blocking plate 18, a push plate 17 is slidably provided in the negative pressure bin 12, a recovery bin 13 is provided on the side of the negative pressure bin 12, the push plate 17 is used to push the RFID tag into the recovery bin 13, and a vertical moving device is fixedly connected to the side of the recovery bin 13; The bottom of the negative pressure chamber 12 is connected to a water outlet pipe 20, and the water outlet of the water outlet pipe 20 is connected to the first pipeline 1; The RFID signal receiver is signal-connected to the valve plate 7 and the side-pass valve device.

[0032] In this embodiment, the RFID signal receiver signal is connected to a PLC controller 29, and the PLC controller 29 is connected to the blocking plate 18 and the push plate 17. After the RFID signal receiver recognizes the side-passing signal of the RFID tag, the blocking plate 18 rotates downward to block the RFID tag from continuing to move downward. After the blocking plate 18 maintains the blocking posture for a set time, the blocking plate 18 rotates back upward and sends the RFID tag into the negative pressure bin 12 on the left or right side. After the RFID tag enters the negative pressure bin 12 and the blocking plate 18 turns back to close the negative pressure bin 12, the mud that rushes into the negative pressure bin 12 can flow out from the outlet pipe 20 at the bottom of the negative pressure bin 12 to the first pipe 1, thereby preventing the RFID tag from entering the recovery bin due to the mud in the negative pressure bin 12. After the mud in the negative pressure bin 12 is discharged and the blocking plate 18 recloses the negative pressure bin 12, the push plate 17 pushes the RFID tag laterally into the recovery bin 13 to complete the recovery of the RFID tag. The RFID signal receiver includes an antenna 4 and a reader / writer 5. The signal of the antenna 4 is connected to the reader / writer 5 and can be the information carried by the RFID tag. A rubber plate 27 is fixedly provided at the bottom end of the push plate 7 to avoid scratching the bottom of the negative pressure bin 12. The antenna 4 and the reader / writer 5 are both arranged in the first cavity 3, and the position of the first cavity 3 is as shown in FIG. Figure 1 shown.

[0033] In the above description, the push plate 17 is slidably disposed in the negative pressure chamber 12. When the push plate 17 is too long, it will block the entrance of the negative pressure chamber 12, making it difficult for the RFID tag to enter the negative pressure chamber 12. Therefore, in this embodiment, the push plate 17 is a retractable structure, which is specifically: The push plate 17 includes a first set plate 26, the outer side of the first set plate 26 is sleeved with a second set plate 24, and the first set plate 26 is slidably disposed in the second set plate 24; An electric push rod 25 is fixedly disposed on the top of the second set of plates 24 . One end of the electric push rod 25 is fixedly disposed on the second set of plates 24 , and the other end is fixedly disposed on the end of the first set of plates 26 .

[0034] In the above scheme, the push plate 17 is extended and retracted up and down through the slidable first set of plates 26 and the electric push rod 25 installed between the first set of plates 26 and the second set of plates 24. When the RFID tag has not entered the negative pressure bin 12, the electric push rod 25 controls the first set of plates 26 to be stored inside the second set of plates 24; when the RFID tag is pushed into the recovery bin 13, the electric push rod 25 controls the first set of plates 26 to withdraw from the second set of plates 24, so that the push plate 17 can contact the bottom of the negative pressure bin 12, thereby pushing the RFID into the recovery bin 13.

[0035] Furthermore, the push plate 17 in this embodiment realizes movement in the negative pressure chamber through the structure of the slide rail and slider, which is specifically: The negative pressure chamber 12 is fixedly provided with a first slide rail 15 inside, and the push plate 17 is fixedly provided with an electric slider 28 inside. The electric slider 28 cooperates with the first slide rail 15, and the electric slider 28 is connected to the RFID signal receiver. The electric slider 28 is connected to the PLC controller 29. The specific structure of the electric slider 28 and the control principle of the PLC controller 29 are common knowledge to those skilled in the art, and are not the innovation of this application, so they are not elaborated here.

[0036] In order to prevent the RFID tag from being flushed into the first pipe 1 from the water outlet pipe 20, a filter plate 19 is fixedly provided at the bottom of the negative pressure chamber 12 in this embodiment, and the filter plate 19 is used to retain the RFID tag in the negative pressure chamber 12. It should be noted that the mesh size of the filter plate 19 needs to be smaller than the diameter of the RFID tag.

[0037] In order to prevent mud from rushing into the negative pressure chamber 12 and soaking the electric slider 28 in the push plate 17, a waterproof plate 16 is fixedly provided on the inner wall of the negative pressure chamber 12, and a waterproof rubber layer is fixedly provided at the end of the waterproof plate 16, and the waterproof rubber layer is in contact with the push plate 17. During the movement of the push plate 17, the side of the push plate 17 and the waterproof rubber layer move relative to each other in a compressed state, which can prevent mud and water from passing through the waterproof rubber layer and contacting the electric slider 28.

[0038] Furthermore, a sealing block 23 is fixedly provided at the bottom of the recovery bin 13, and the sealing block 23 is used to seal the negative pressure bin 12. Before the normal drilling process and the negative pressure bin 12 complete the mud and water discharge process, the sealing block 23 is close to the outlet of the negative pressure bin 12, so as to prevent the mud and water in the negative pressure bin 12 from leaking out of the outlet of the negative pressure bin 12. After the mud in the negative pressure bin 12 is completely discharged from the outlet pipe 20, the recovery bin 13 moves downward, the sealing block 23 gradually leaves the negative pressure bin 12, and the inlet of the recovery bin 13 gradually moves to the outlet of the negative pressure bin 12 until it is completely aligned. Through this structure, the opening and closing door structure of the recovery bin 13 can be eliminated, and the opening and closing of the channel between the negative pressure bin 12 and the recovery bin 13 can be controlled by sliding opening and closing.

[0039] The above-mentioned recovery bin 13 needs to be moved up and down, which is implemented in the present embodiment by a second slide rail 14 and a second electric slider, wherein the second slide rail 14 is fixedly arranged in the second cavity 6, and the second cavity 6 is arranged at the outermost side of the second pipe 2, wherein a second electric slider is slidably arranged on the second slide rail 14, and the above-mentioned recovery bin 13 and the sealing block 23 are fixedly arranged on the side of the second electric slider.

[0040] In the first pipeline 1, a side-pass valve plate 10 and a vertical valve plate 7 for controlling the side-pass pipeline are provided. When the RDID tag with the side-pass signal passes through the RFID signal receiver, the RFID signal receiver translates the signal to the PLC controller 29, and the PLC controller 29 controls the hydraulic rod 9 to lift up. The lifting action of the hydraulic rod 9 controls the vertical valve plate to close, which is specifically: A third cavity is provided on the inner wall of the first pipeline 1, a hydraulic rod 9 is fixedly provided inside the third cavity, a side-pass valve plate 10 is fixedly connected to the output end of the hydraulic rod 9, an opening 11 is provided on the side wall of the first channel 1, and the side-pass valve plate 10 controls the opening and closing of the opening 11.

[0041] A pressure sensor 22 is fixedly arranged below the side-pass valve plate 10, and the pressure sensor signal is connected to the valve plate 7. In this embodiment, the pressure sensor 22 is installed on the top of the support pipe 8.

[0042] In the above scheme, there are three specific situations: 1. The vertical valve plate 7 is opened and the side valve plate 10 is closed: In this case, the hydraulic rod 9 is in contact with the pressure sensor 22, and the pressure sensor 22 can read the pressure signal, wherein the pressure sensor 22 signal is connected to the single chip microcomputer 30, and the single chip microcomputer 30 can recognize the signal, and the single chip microcomputer 30 is connected to the vertical valve plate 7. When the single chip microcomputer 30 recognizes the pressure signal A when the hydraulic rod 9 is in contact with the pressure sensor 22, the vertical valve plate 7 is kept open; 2. The vertical valve plate 7 is opened and the side valve plate 10 is closed: In this case, the hydraulic rod 9 first applies a pressure greater than the pressure signal A downward, and then lifts the pressure sensor 22 upward, while opening the opening 11. When the single chip computer 30 recognizes the pressure signal B that increases first and then decreases, the vertical valve plate 7 is kept open; 3. The vertical valve plate 7 is opened, and the side valve plate 10 is opened: In this case, the hydraulic rod 9 is directly lifted upward, leaving the pressure sensor 22, and opening the opening 11 at the same time. When the single chip computer 30 recognizes the reduced pressure signal C, it controls the vertical valve plate 7 to close.

[0043] The water outlet pipe 20 is provided with a negative pressure water pump 21 and a water valve.

[0044] There are two blocking plates 18, which are respectively arranged on both sides of the second pipe 2. When the two blocking plates 18 are in contact, an upward convex structure is formed. With this method, the upward convex structure can prevent the RFID tag from being retained in the middle of the two blocking plates 18, so that it leaks into the first pipe 1 from the gap between the two blocking plates 18 during the rotation of the two blocking plates 18. Through this upward convex structure, in conjunction with the downward impact of muddy water, the RFID tag moves to the lower left or lower right, thereby greatly increasing the probability of the RFID being pushed into the negative pressure chamber 12.

[0045] The above-mentioned embodiments only express the specific implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the protection scope of the present application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the technical solution concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A drilling plugging device based on RFID technology, characterized in that: include: A first pipe (1) and a second pipe (2), wherein the water outlet of the second pipe (2) is fixedly connected to the first pipe (1); An RFID signal receiver is fixedly arranged on the inner wall of the second pipe (2), and a label recovery device is fixedly arranged below the RFID signal receiver; The tag recovery device comprises a blocking plate (18); a negative pressure bin (12) is arranged on the side of the blocking plate (18); a push plate (17) is slidably arranged in the negative pressure bin (12); a recovery bin (13) is arranged on the side of the negative pressure bin (12); the push plate (17) is used to push the RFID tag into the recovery bin (13); a vertical moving device is fixedly connected to the side of the recovery bin 13; The bottom of the negative pressure chamber (12) is connected to a water outlet pipe (20), and the water outlet of the water outlet pipe (20) is connected to the first pipeline (1); The RFID signal receiver is signal-connected to a vertical valve plate (7) and a side-pass valve device.

2. The drilling plugging device based on RFID technology according to claim 1 is characterized in that: The push plate (17) comprises a first set plate (26), a second set plate (24) is sleeved on the outer side of the first set plate (26), and the first set plate (26) is slidably arranged in the second set plate (24); An electric push rod (25) is fixedly arranged on the top of the second set of plates (24), one end of the electric push rod (25) is fixedly arranged on the second set of plates (24), and the other end is fixedly arranged on the end of the first set of plates (26).

3. The drilling plugging device based on RFID technology according to claim 1 is characterized in that: A first slide rail (15) is fixedly disposed inside the negative pressure chamber (12), an electric slider (28) is fixedly disposed inside the push plate (17), the electric slider (28) cooperates with the first slide rail (15), and the electric slider (28) is signal-connected to the RFID signal receiver.

4. The drilling plugging device based on RFID technology according to claim 1 is characterized in that: A filter grid plate (19) is fixedly arranged at the bottom of the negative pressure bin (12), and the filter grid plate (19) is used to retain the RFID tag in the negative pressure bin 12.

5. The drilling plugging device based on RFID technology according to claim 1 is characterized in that: A waterproof plate (16) is fixedly provided on the inner wall of the negative pressure chamber (12), a waterproof rubber layer is fixedly provided at the end of the waterproof plate (16), and the waterproof rubber layer is in contact with the push plate (17).

6. The drilling plugging device based on RFID technology according to claim 1 is characterized in that: A sealing block (23) is fixedly arranged at the bottom of the recovery bin (13), and the sealing block (23) is used to seal the negative pressure bin (12).

7. The drilling plugging device based on RFID technology according to claim 1 is characterized in that: A third cavity is provided on the inner wall of the first pipeline (1), a hydraulic rod (9) is fixedly provided inside the third cavity, an output end of the hydraulic rod (9) is fixedly connected to a side-pass valve plate (10), an opening (11) is provided on the side wall of the first channel (1), and the side-pass valve plate (10) controls the opening and closing of the opening (11).

8. The drilling plugging device based on RFID technology according to claim 7 is characterized in that: A pressure sensor (22) is fixedly arranged below the side-pass valve plate (10), and the pressure sensor signal is connected to the vertical valve plate (7).

9. The drilling plugging device based on RFID technology according to claim 1, characterized in that: The water outlet pipe (20) is provided with a negative pressure water pump (21) and a water valve.

10. The drilling plugging device based on RFID technology according to claim 1, characterized in that: Two blocking plates (18) are provided and are respectively arranged on both sides of the second pipe (2); when the two blocking plates (18) are in contact, an upwardly protruding structure is formed.

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