Leakage-proof sealing protection device for oil well pipeline and using method of leakage-proof sealing protection device

Abstract

The invention relates to the technical field of oil well pipelines, in particular to an oil well pipeline anti-leakage sealing protection device and a using method thereof. According to the technical scheme, the oil well pipeline anti-leakage sealing protection device comprises a first pipeline protection ring, a second pipeline protection ring, a third pipeline protection ring, an inner clamping adjusting assembly, a pressure relief sealing protection assembly and a slow flow filter plate; the inner clamping adjusting assemblies are arranged on the inner sides of the first pipeline protection ring, the second pipeline protection ring and the third pipeline protection ring and can be used for being matched with the pipeline diameter to increase the sealing performance, and the pressure relief sealing protection assemblies are distributed on the first pipeline protection ring, the second pipeline protection ring and the third pipeline protection ring. The device can be used for pressure relief early warning protection, and the whole pipeline sealing protection effect is improved.

Description

Technical Field

[0001] This invention relates to the field of oil well pipeline technology, and in particular to an oil well pipeline anti-leakage sealing protection device and its usage method. Background Technology

[0002] Oil well pipelines are an indispensable and crucial component in oil extraction and transportation. They are primarily used to transport hydrocarbons such as oil and natural gas from the bottom of the well to surface processing or storage facilities. These pipelines include water mixing pipelines, water injection pipelines, water return pipelines, and heat tracing pipelines. They perform specific tasks during oilfield production, such as increasing crude oil fluidity, pressurizing water injection, and recycling recovered water. To ensure the safe operation of oil well pipelines and extend their service life, regular maintenance and inspection are necessary. Oil well pipeline leakage is a serious problem that can be caused by a variety of factors and has a significant impact on the environment and operations. It can corrode pipelines, and long-term accumulation can lead to leakage. Existing oil well pipeline sealing protection devices typically use a sleeve structure and sealing ring for sealing protection. However, the properties and flow states of substances such as crude oil, associated gas, formation water, and injected water can cause excessive internal pressure, leading to the rupture of the sealing ring, resulting in decreased sealing performance and reduced overall safety protection effectiveness.

[0003] Therefore, existing oil well pipeline sealing protection devices typically use a sleeve structure and sealing rings for sealing protection. However, due to the properties and flow states of substances such as crude oil, associated gas, formation water, and injected water, excessive internal pressure can cause the sealing rings to rupture, leading to a decrease in sealing performance and a reduction in overall safety protection effectiveness. Therefore, an oil well pipeline leak-proof sealing protection device and its usage method can be designed to address the aforementioned problems. Summary of the Invention

[0004] To overcome the problem that existing oil well pipeline sealing protection devices typically use a sleeve structure and sealing ring for sealing protection, the properties and flow states of substances such as crude oil, associated gas, formation water, and injected water can cause the sealing ring to rupture due to excessive internal pressure, resulting in a decrease in sealing performance and a reduction in the overall safety protection effect.

[0005] The technical solution of the present invention is as follows: an oil well pipeline anti-leakage sealing protection device, comprising a first pipeline protection ring, a second pipeline protection ring, a third pipeline protection ring, an inner clamping adjustment component, a pressure relief sealing protection component, and a slow-flow filter plate; the first pipeline protection ring, the second pipeline protection ring, and the third pipeline protection ring are arranged in a circumferential distribution for anti-leakage sealing protection at the connection of the oil well pipeline. The circumference center of the first pipeline protection ring, the second pipeline protection ring, and the third pipeline protection ring is provided with a slow-flow filter plate for reducing liquid impact pressure and diverting and relieving pressure. The inner side of the first pipeline protection ring, the second pipeline protection ring, and the third pipeline protection ring is provided with an inner clamping adjustment component for adapting to the pipeline diameter and increasing the sealing performance. Pressure relief sealing protection components for pressure relief early warning protection are distributed on the first pipeline protection ring, the second pipeline protection ring, and the third pipeline protection ring.

[0006] Preferably, a slow-flow filter plate is used, located at the center of the circumference of the first, second, and third pipe protection rings, to reduce liquid impact pressure and divert and relieve pressure. An internal clamping adjustment component is located inside the first, second, and third pipe protection rings to adapt to the pipe diameter and increase sealing performance. A pressure relief and sealing protection component is distributed on the first, second, and third pipe protection rings to provide pressure relief early warning protection and improve the overall pipe sealing protection effect.

[0007] Preferably, the first, second, and third pipe protection rings all have the same structure. Each of the three pipe protection rings has a center hole for mounting an internal clamping adjustment component. Near the corners of each ring, there are guide holes for mounting a pressure relief sealing protection component. Each ring has a first mounting plate and a second mounting plate at its ends. The side walls of each ring have airbags corresponding to the internal clamping adjustment component. The outer walls of each ring are covered with rubber sleeves. Each ring has linearly formed limiting grooves at its ends corresponding to the first and second mounting plates. The airbags enhance the overall pressure resistance.

[0008] Preferably, the bottom of the first mounting plate is provided with a first sealing water-blocking strip, the first mounting plate is provided with four sets of mounting strips in the longitudinal direction, and the first mounting plate is provided with three sets of fitting blocks for connecting the mounting strips in the transverse direction. Two sets of first insertion holes are linearly opened on the fitting blocks, and a mating groove is formed between the two sets of mounting strips. The mounting strips and fitting blocks on the first mounting plate are placed into the mounting groove and fitting groove on the second mounting plate respectively.

[0009] Preferably, the second mounting plate is provided with five sets of mating blocks in a linear fashion, and a mounting groove is formed between two sets of mating blocks. The bottom of the second mounting plate is provided with a second sealing water-blocking strip. The second mounting plate is provided with three sets of wedge grooves in a horizontal direction. The wedge grooves are provided with two sets of second insertion holes in a linear fashion inside. The second insertion holes are adapted to the first insertion holes to improve the overall installation effect.

[0010] Preferably, a flow-slowing slope is provided on the inner side of the guide hole, and a first positioning hole is provided on the top of the flow-slowing slope in a circumferential direction. The flow-slowing slope is provided to reduce the impact force of the oil.

[0011] Preferably, the internal clamping adjustment assembly includes an inner ring plate, a spring column, an anti-corrosion coating, a built-in antenna end, a snap-fit ​​groove, a push rod, a sheath, and a cylinder. The inner ring plate is arranged in three linear sets, and a snap-fit ​​groove for the slow-flow filter plate is opened in the center of the inner ring plate. The spring column is connected between the three sets of inner ring plates. The spring column is equipped with a spring rubber damper inside. A push rod is located in the center of the inner ring plate. A sheath is fitted on the push rod. The cylinder drives the push rod to adjust the height of the inner ring plate. The side wall of the inner ring plate is coated with an anti-corrosion coating. A pressure sensor is located inside the spring column and at its end. The outer end of the pressure sensor is equipped with a built-in antenna end. The pressure status of the synchronous pressure sensor is fed back to the background through the built-in antenna end.

[0012] Preferably, the pressure relief sealing protection assembly includes a transmission tube, a mounting sealing ring, a second positioning hole, a balloon bag, and a warning light. The transmission tube is fitted with a mounting sealing ring, and a second positioning hole is circumferentially opened near the edge of the mounting sealing ring. A balloon bag is connected to the top of the transmission tube. A rubber damping tension sleeve is provided on the side wall of the balloon bag. A pressure sensor is provided at one end of the balloon bag, and a warning light is provided at the outer end of the pressure sensor. A portion of oil can be stored through the balloon bag to enhance the pressure relief function.

[0013] Preferably, the slow-flow filter plate is provided with small and large diversion holes distributed in a circumferential direction, and the outer end of the slow-flow filter plate is provided with a snap-fit ​​bracket in a circumferential direction. The slow-flow filter plate is provided with multiple layers of superimposed rubber damping interlayer. The rubber damping interlayer increases the slow-flow rebound effect.

[0014] According to another aspect of the present invention, an oil well pipeline anti-leakage sealing protection device and its method of use are provided, comprising the following steps: S1. Observe the two sets of pipe interfaces, and use cleaning and polishing tools to treat the interfaces. According to the diameter of the interface, select a slow-flow filter plate that can be embedded in the interface. Embed part of the end face of the slow-flow filter plate into the pipe opening. According to the distance between the pipe openings, increase or decrease the corresponding slow-flow filter plate. According to the position of the snap-fit ​​bracket, the first pipe protection ring, the second pipe protection ring and the third pipe protection ring are pre-snapped through the snap-fit ​​groove in sequence. S2. Observe the alternating positions of the first and second mounting plates on the first, second, and third pipe protection rings. Place the mounting strip and the mating block on the first mounting plate into the mounting groove and the mating groove on the second mounting plate, aligning the first and second insertion holes. Insert the mounting bolts to complete the positioning. The first and second sealing water-blocking strips are then combined in an alternating manner. S3. Through the internal clamping adjustment component, the cylinder drives the push rod to adjust the inner ring plate to adapt to the outer diameter of the pipe. According to the pressure of the pressure sensor, the backend is fed back through the built-in antenna to keep the pressure clamping degree of the first pipe protection ring, the second pipe protection ring and the third pipe protection ring within the same range, so that the second positioning hole and the first positioning hole on the sealing ring are matched and bolt positioning is installed. S4. As the liquid flows and impacts the slow-flow filter plate, it can be impacted and diverted through the small and large diversion holes. When the oil well pressure is unstable, some of the turbulent flow impacts the inner ring plate, passes through the guide hole and the transmission pipe into the balloon bag for storage. Due to the pressure impact, the spring column and the balloon bag form a node and surface buffer protection. The pressure sensor's pressure status is fed back to the background through the built-in antenna. The pressure sensor's feedback information is sent to the warning light for flashing warning.

[0015] The beneficial effects of this invention are: 1. Traditional oil well pipeline sealing protection devices typically use a sleeve structure and sealing rings for sealing protection. However, due to the properties and flow states of substances such as crude oil, associated gas, formation water, and injected water, excessive internal pressure can cause the sealing rings to rupture, leading to decreased sealing performance and reduced overall safety protection. In contrast, this device uses a first, second, and third pipeline protection ring, arranged circumferentially at the pipeline connection, to protect the oil well from leakage. A slow-flow filter plate, located at the center of the first, second, and third pipeline protection rings, can reduce liquid impact pressure and divert and relieve pressure. An internal clamping adjustment component, located inside the first, second, and third pipeline protection rings, can adapt to the pipeline diameter and increase sealing performance. A pressure relief sealing protection component, distributed on the first, second, and third pipeline protection rings, can provide pressure relief early warning protection, thus improving the overall pipeline sealing protection effect.

[0016] 2. During sealing installation, adjust the flow-slowing filter plates according to the pipe spacing to enhance the tightness. Based on the snap-fit ​​bracket position, pre-fit the first, second, and third pipe protection rings sequentially through the snap-fit ​​grooves to improve installation stability. Observe the alternating positions of the first and second mounting plates on the first, second, and third pipe protection rings to form a structural seal. Place the mounting strip and wedge block on the first mounting plate into the mounting groove and wedge groove on the second mounting plate, aligning the first and second insertion holes. Insert the mounting bolts for positioning. The alternating combination of the first and second sealing water-blocking strips forms a layered, alternating sealing installation, improving overall installation performance.

[0017] 3. During use, the cylinder drives the push rod to adjust the inner ring plate, making it fit the outer diameter of the pipeline. When the oil well pressure is unstable, some turbulent flow impacts the inner ring plate, passes through the guide hole and the transmission pipe into the balloon bag for storage. Due to the pressure impact, the spring column and the balloon bag form a node and surface buffer protection. The pressure sensor's pressure status is fed back to the backend through the built-in antenna. The pressure sensor's feedback information is sent to the warning light for flashing warning, increasing the overall warning and protection effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall exploded structure of the safety protection device of the present invention; Figure 2 This is a schematic diagram of the first pipeline protection ring of the safety protection device of the present invention; Figure 3 This is a schematic diagram of the first mounting plate of the safety protection device of the present invention; Figure 4 This is a schematic diagram of the second mounting plate of the safety protection device of the present invention; Figure 5 This is a schematic diagram of the clamping and adjusting component inside the safety protection device of the present invention; Figure 6 This is a schematic diagram of the pressure relief and sealing protection component of the safety protection device of the present invention; Figure 7 This is a schematic diagram of the slow-flow filter plate of the safety protection device of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. First pipe protection ring; 2. Second pipe protection ring; 3. Third pipe protection ring; 4. Inner clamping adjustment assembly; 5. Pressure relief sealing protection assembly; 6. Slow-flow filter plate; 101. Limiting groove; 102. Limiting hole; 103. First mounting plate; 104. Second mounting plate; 105. Airbag; 106. Rubber sleeve; 107. Mounting strip; 108. First sealing water-blocking strip; 109. Fitting block; 110. First insertion hole; 111. Connecting block; 112. Second insertion hole; 113. Second sealing water-blocking strip; 11 4. Mounting slot; 115. Guide hole; 116. Slow flow slope; 117. First positioning hole; 118. Wedged groove; 401. Inner ring plate; 402. Spring column; 403. Anti-corrosion coating; 404. Built-in antenna end; 405. Snap-fit ​​groove; 406. Push rod; 407. Sheath; 408. Cylinder; 501. Conducting tube; 502. Mounting sealing ring; 503. Second positioning hole; 504. Ball bag; 505. Warning light; 601. Small diversion hole; 602. Large diversion hole; 603. Snap-fit ​​bracket; 604. Rubber damping interlayer. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1: Please refer to Figures 1-3 This invention provides an oil well pipeline leak-proof sealing protection device, comprising a first pipeline protection ring 1, a second pipeline protection ring 2, a third pipeline protection ring 3, an inner clamping adjustment component 4, a pressure relief sealing protection component 5, and a slow-flow filter plate 6; the first pipeline protection ring 1, the second pipeline protection ring 2, and the third pipeline protection ring 3 are arranged in a circumferential distribution for leak-proof sealing protection at the connection of the oil well pipeline. The circumference center of the first pipeline protection ring 1, the second pipeline protection ring 2, and the third pipeline protection ring 3 is provided with a slow-flow filter plate 6 for reducing liquid impact pressure and diverting and relieving pressure. The inner side of the first pipeline protection ring 1, the second pipeline protection ring 2, and the third pipeline protection ring 3 is provided with an inner clamping adjustment component 4 for adapting to the pipeline diameter and increasing the sealing performance. The pressure relief sealing protection component 5 for pressure relief early warning protection is distributed on the first pipeline protection ring 1, the second pipeline protection ring 2, and the third pipeline protection ring 3.

[0022] Example 2: Please refer to Figures 2-4In this embodiment, the first pipe protection ring 1, the second pipe protection ring 2, and the third pipe protection ring 3 all have the same structure. The center of each of the three pipe protection rings has a limiting hole 102 for mounting the inner clamping adjustment component 4. Near the corners of each of the three pipe protection rings, the perimeter has guide holes 115 for mounting the pressure relief sealing protection component 5. The two ends of each of the three pipe protection rings have a first mounting plate 103 and a second mounting plate 104, respectively. The side walls of each of the three pipe protection rings have airbags 105 corresponding to the inner clamping adjustment component 4. The outer walls of each of the three pipe protection rings are covered with rubber sleeves 106. The two ends of each of the three pipe protection rings have linearly arranged guide holes 105 corresponding to the first mounting plate 103 and the second mounting plate 104. The limiting groove 101 corresponding to the mounting plate 104, through the airbag 105, can improve the overall pressure resistance. The bottom of the first mounting plate 103 is provided with a first sealing water-blocking strip 108. The first mounting plate 103 is provided with four sets of mounting strips 107 longitudinally. The first mounting plate 103 is provided with three sets of fitting blocks 109 for fitting the mounting strips 107 laterally. Two sets of first insertion holes 110 are linearly opened on the fitting blocks 109. A mating groove is formed between the two sets of mounting strips 107 to connect the mounting strips 107 on the first mounting plate 103 with the fitting blocks. 109 is placed into the mounting groove 114 and the wedged groove 118 on the second mounting plate 104. The second mounting plate 104 has five sets of mating blocks 111 arranged linearly. The mounting groove 114 is formed between two sets of mating blocks 111. The bottom of the second mounting plate 104 is provided with a second sealing water-blocking strip 113. The second mounting plate 104 has three sets of wedged grooves 118 arranged horizontally. The interior of the wedged groove 118 has two sets of second insertion holes 112 arranged linearly. The second insertion holes 112 are adapted to the first insertion holes 110 to improve the overall installation effect.

[0023] Example 3: Please refer to Figures 5-6In this embodiment, the inner clamping adjustment assembly 4 includes an inner ring plate 401, a spring post 402, an anti-corrosion coating 403, a built-in antenna end 404, a snap-fit ​​groove 405, a push rod 406, a sheath 407, and a cylinder 408. The inner ring plate 401 is arranged in three linear groups. The center of the inner ring plate 401 is provided with a snap-fit ​​groove 405 for the slow-flow filter plate 6. The spring post 402 passes through the three groups of inner ring plates 401. The spring post 402 is provided with a spring rubber damper inside. The center of the inner ring plate 401 is provided with a push rod 406. The sheath 407 is sleeved on the push rod 406. The cylinder 408 drives the push rod 406 to adjust the inner ring plate 401 by raising and lowering. The side wall of the inner ring plate 401 is coated with an anti-corrosion coating 403. The spring post 402 is provided with a pressure end. The pressure sensor has an externally located built-in antenna 404. The pressure status of the synchronous pressure sensor is fed back to the backend through the built-in antenna 404. The pressure relief sealing protection component 5 includes a transmission tube 501, a mounting sealing ring 502, a second positioning hole 503, a balloon bag 504, and a warning light 505. The transmission tube 501 is fitted with a mounting sealing ring 502. The mounting sealing ring 502 has a second positioning hole 503 circumferentially opened near its edge. The top of the transmission tube 501 is connected to the balloon bag 504. The side wall of the balloon bag 504 is equipped with a rubber damping tension sleeve. One end of the balloon bag 504 is equipped with a pressure sensor, and the external end of the pressure sensor is equipped with a warning light 505. The balloon bag 504 can store a portion of oil to enhance the pressure relief function.

[0024] Example 4: Please refer to Figure 1 and Figure 5 In this embodiment, preferably, a flow-slowing slope 116 is provided circumferentially on the inner side of the guide hole 115, and a first positioning hole 117 is provided circumferentially on the top of the flow-slowing slope 116. The flow-slowing slope 116 is provided to reduce the impact force of the oil. The inner clamping adjustment assembly 4 includes an inner ring plate 401, a spring column 402, an anti-corrosion coating 403, an internal antenna end 404, a snap-fit ​​groove 405, a push rod 406, a sheath 407, and a cylinder 408. The inner ring plate 401 is arranged in three linear groups, and a snap-fit ​​groove 405 for the flow-slowing filter plate 6 is provided in the center of the inner ring plate 401. Spring columns 402 are connected between the three sets of inner ring plates 401. Spring rubber dampers are installed inside the spring columns 402. A push rod 406 is located at the center of the inner ring plate 401. A protective sleeve 407 is fitted on the push rod 406. A cylinder 408 drives the push rod 406 to adjust the height of the inner ring plate 401. The side wall of the inner ring plate 401 is coated with an anti-corrosion coating 403. A pressure sensor is installed inside the spring column 402. An internal antenna terminal 404 is installed at the outer end of the pressure sensor. The pressure status of the synchronous pressure sensor is fed back to the backend through the internal antenna terminal 404.

[0025] According to another aspect of the present invention, an oil well pipeline anti-leakage sealing protection device and its method of use are provided, comprising the following steps: S1. Observe the two sets of pipe interfaces, and use cleaning and polishing tools to treat the interfaces. According to the diameter of the interface, select a slow-flow filter plate 6 that can be embedded in the interface. Embed part of the end face of the slow-flow filter plate 6 into the pipe opening. According to the distance between the pipe openings, increase or decrease the corresponding slow-flow filter plate 6. According to the position of the snap-fit ​​bracket 603, the first pipe protection ring 1, the second pipe protection ring 2 and the third pipe protection ring 3 are pre-snap-fitted through the snap-fit ​​groove 405. S2. Observe the alternating positions of the first mounting plate 103 and the second mounting plate 104 on the first pipe protection ring 1, the second pipe protection ring 2 and the third pipe protection ring 3. Place the mounting strip 107 and the wedge block 109 on the first mounting plate 103 into the mounting groove 114 and the wedge groove 118 on the second mounting plate 104, so that the first insertion hole 110 and the second insertion hole 112 are aligned. Insert the mounting bolt to complete the positioning. The first sealing water-blocking strip 108 and the second sealing water-blocking strip 113 are combined in an alternating manner. S3. Through the inner clamping adjustment component 4, the cylinder 408 drives the push rod 406 to adjust the inner ring plate 401 to rise and fall, so that the inner ring plate 401 is adapted to the outer diameter of the pipe. According to the pressure of the pressure sensor, the backend is fed back through the built-in antenna terminal 404 to keep the pressure clamping degree of the first pipe protection ring 1, the second pipe protection ring 2 and the third pipe protection ring 3 within the same range, so that the second positioning hole 503 and the first positioning hole 117 on the sealing ring 502 are adapted to the bolt positioning installation. S4. As the liquid flows and impacts the slow-flow filter plate 6, it passes through the small diversion hole 601 and the large diversion hole 602, which can perform impact diversion. When the oil well pressure is unstable, part of the turbulent flow impacts the inner ring plate 401, passes through the guide hole 115 and the transmission pipe 501, and enters the balloon bag 504 for storage. Since the pressure impact spring column 402 and the balloon bag 105 form a node and surface buffer protection, the pressure status of the synchronous pressure sensor is fed back to the background through the built-in antenna terminal 404. The pressure sensor feeds back the information to the warning light 505 for warning flashing.

[0026] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A leak-proof sealing protection device for oil well pipelines, comprising a first pipeline protection ring (1); characterized in that: It also includes a second pipeline protection ring (2), a third pipeline protection ring (3), an inner clamping adjustment component (4), a pressure relief sealing protection component (5), and a slow-flow filter plate (6); the first pipeline protection ring (1), the second pipeline protection ring (2), and the third pipeline protection ring (3) are used to protect the oil well pipeline connection in a circumferentially distributed combination for leak prevention and sealing protection. The first pipeline protection ring (1), the second pipeline protection ring (2), and the third pipeline protection ring (3) are provided with a slow-flow filter plate (6) at the center of their circumference to reduce liquid impact pressure and to divert and relieve pressure. The inner side of the first pipeline protection ring (1), the second pipeline protection ring (2), and the third pipeline protection ring (3) is provided with an inner clamping adjustment component (4) to adapt to the pipeline diameter and increase the sealing performance. The first pipeline protection ring (1), the second pipeline protection ring (2), and the third pipeline protection ring (3) are all provided with a pressure relief sealing protection component (5) for pressure relief early warning protection.

2. The oil well pipeline leak-proof sealing protection device according to claim 1, characterized in that: The first pipe protection ring (1), the second pipe protection ring (2), and the third pipe protection ring (3) all have the same structure. The center of the first pipe protection ring (1), the second pipe protection ring (2), and the third pipe protection ring (3) is provided with a limiting hole (102) for installing the inner clamping adjustment component (4). The periphery of the first pipe protection ring (1), the second pipe protection ring (2), and the third pipe protection ring (3) is provided with a guide hole (115) for installing the pressure relief sealing protection component (5) near the corner. The two ends of the first pipe protection ring (1), the second pipe protection ring (2), and the third pipe protection ring (3) A first mounting plate (103) and a second mounting plate (104) are provided respectively. The side walls of the first pipe protection ring (1), the second pipe protection ring (2) and the third pipe protection ring (3) are provided with airbags (105) corresponding to the inner clamping adjustment component (4). The outer walls of the first pipe protection ring (1), the second pipe protection ring (2) and the third pipe protection ring (3) are covered with rubber sleeves (106). The two ends of the first pipe protection ring (1), the second pipe protection ring (2) and the third pipe protection ring (3) are linearly provided with limiting grooves (101) corresponding to the first mounting plate (103) and the second mounting plate (104).

3. The oil well pipeline leak-proof sealing protection device according to claim 2, characterized in that: The bottom of the first mounting plate (103) is provided with a first sealing water-blocking strip (108). The first mounting plate (103) is provided with four sets of mounting strips (107) in the longitudinal direction. The first mounting plate (103) is provided with three sets of fitting blocks (109) for connecting the mounting strips (107) in the transverse direction. Two sets of first insertion holes (110) are linearly opened on the fitting blocks (109). A mating groove is formed between the two sets of mounting strips (107).

4. The oil well pipeline leak-proof sealing protection device according to claim 2, characterized in that: The second mounting plate (104) is provided with five sets of docking blocks (111) in a linear fashion. A mounting groove (114) is formed between two sets of docking blocks (111). The bottom of the second mounting plate (104) is provided with a second sealing water-blocking strip (113). Three sets of wedge grooves (118) are opened horizontally on the second mounting plate (104). Two sets of second insertion holes (112) are opened linearly inside the wedge grooves (118).

5. The oil well pipeline leak-proof sealing protection device according to claim 2, characterized in that: The inner side of the guide hole (115) is provided with a flow-slowing slope (116), and the top of the flow-slowing slope (116) is provided with a first positioning hole (117).

6. The oil well pipeline leak-proof sealing protection device according to claim 1, characterized in that: The internal clamping adjustment assembly (4) includes an inner ring plate (401), a spring post (402), an anti-corrosion coating (403), a built-in antenna end (404), a snap-fit ​​groove (405), a push rod (406), a sheath (407), and a cylinder (408). The inner ring plate (401) is arranged in three linear groups. The center of the inner ring plate (401) is provided with a snap-fit ​​groove (405) for the slow-flow filter plate (6). The spring post (402) passes through the three groups of inner ring plates (401). The spring column (402) is equipped with a spring rubber damper inside. The inner ring plate (401) is equipped with a push rod (406) at the center. The push rod (406) is fitted with a protective sleeve (407). The cylinder (408) drives the push rod (406) to adjust the inner ring plate (401) by raising and lowering. The side wall of the inner ring plate (401) is coated with an anti-corrosion coating (403). The spring column (402) is equipped with a pressure sensor at its end inside. The pressure sensor is equipped with a built-in antenna end (404) at its outer end.

7. The oil well pipeline leak-proof sealing protection device according to claim 1, characterized in that: The pressure relief sealing protection assembly (5) includes a transmission tube (501), a mounting sealing ring (502), a second positioning hole (503), a balloon bag (504), and a warning light (505). The transmission tube (501) is fitted with a mounting sealing ring (502). The mounting sealing ring (502) is circumferentially opened near the edge of the mounting sealing ring (502). The top of the transmission tube (501) is connected to the balloon bag (504). The side wall of the balloon bag (504) is provided with a rubber damping tension sleeve. One end of the balloon bag (504) is provided with a pressure sensor. The outer end of the pressure sensor is provided with a warning light (505).

8. The oil well pipeline leak-proof sealing protection device according to claim 1, characterized in that: The slow-flow filter plate (6) is provided with small diversion holes (601) and large diversion holes (602) distributed in a circumferential direction. The outer end of the slow-flow filter plate (6) is provided with a snap-fit ​​bracket (603) in a circumferential direction. The interior of the slow-flow filter plate (6) is provided with a multi-layered rubber damping interlayer (604).

9. A leak-proof sealing and protection device for oil well pipelines and its method of use, comprising the leak-proof sealing and protection device for oil well pipelines and its method of use as described in any one of claims 1-8, characterized in that, Includes the following steps: S1. Observe the two sets of pipe interfaces, and use cleaning tools and polishing tools to process the interfaces. According to the diameter of the interface, select a slow-flow filter plate (6) that can be embedded in the interface. Make a part of the end face of the slow-flow filter plate (6) embedded in the pipe opening. According to the distance between the pipe openings, increase or decrease the corresponding slow-flow filter plate (6). According to the position of the snap-fit ​​bracket (603), the first pipe protection ring (1), the second pipe protection ring (2) and the third pipe protection ring (3) are snapped in advance through the snap-fit ​​groove (405). S2. Observe the alternating positions of the first mounting plate (103) and the second mounting plate (104) on the first pipe protection ring (1), the second pipe protection ring (2) and the third pipe protection ring (3). Place the mounting strip (107) and the wedge block (109) on the first mounting plate (103) into the mounting groove (114) and the wedge groove (118) on the second mounting plate (104) respectively, so that the first insertion hole (110) and the second insertion hole (112) are aligned. Insert the mounting bolt to complete the positioning. The first sealing water-blocking strip (108) and the second sealing water-blocking strip (113) are combined in an alternating manner. S3. Through the inner clamping adjustment component (4), the cylinder (408) drives the push rod (406) to adjust the inner ring plate (401) up and down, so that the inner ring plate (401) is adapted to the outer diameter of the pipe. According to the pressure of the pressure sensor, the feedback is sent to the background through the built-in antenna end (404) so ​​that the pressure clamping degree of the first pipe protection ring (1), the second pipe protection ring (2) and the third pipe protection ring (3) are kept within the same range, so that the second positioning hole (503) and the first positioning hole (117) on the sealing ring (502) are adapted to each other for bolt positioning installation. S4. As the liquid flow impacts the slow-flow filter plate (6), it passes through the small diversion hole (601) and the large diversion hole (602) to perform impact diversion. When encountering unstable oil well pressure, a portion of the turbulent flow impacts the inner ring plate (401), passes through the guide hole (115) and the transmission pipe (501) to enter the balloon bag (504) for storage. Due to the pressure impact spring column (402) and the balloon bag (105) forming node and surface buffer protection, the pressure status of the synchronous pressure sensor is fed back to the background through the built-in antenna end (404). The pressure sensor feeds back information to the warning light (505) for warning flashing.

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