Leaking stoppage plate and forming method and forming die thereof

Abstract

The invention discloses a leaking stoppage seam plate as well as a forming method and a forming mold thereof, and belongs to the technical field of indoor leaking stoppage simulation in oil drilling. The forming die mainly comprises a main body; the main body comprises a seam plate first part and a seam plate second part; the first seam plate part is a hollow semi-cylindrical mold, the second seam plate part is a solid semi-cylindrical mold, the inner side face of the first seam plate part and the rectangular section of the second seam plate part are oppositely arranged, and the first seam plate part is fixedly connected with the second seam plate part; an inclined boss is arranged in the center of the rectangular section of the second part of the leak stopping plate, and the size of the inclined boss corresponds to the size of a crack of the leak stopping plate. The leaking stoppage seam plate is a wedge-shaped seam plate. The provided seam plate has transmissivity for signals of an industrial CT scanner, the seam plate filled with the leaking stoppage material is taken out after a leaking stoppage experiment is finished, industrial CT is adopted for scanning, and internal information of the see-through seam plate is obtained so as to replace a metal seam plate to evaluate the leaking stoppage effect.

Description

Technical Field

[0001] The invention belongs to the technical field of indoor leak plugging simulation in oil drilling, and in particular relates to a leak plugging seam plate and a forming method and a forming die thereof. Background Art

[0002] Well leakage is a common and complex problem during oil drilling operations. During drilling, cracks or holes may appear in the formation, leading to the loss of drilling fluid or mud. This not only affects drilling progress but also poses a safety hazard. Therefore, plugging lost circulation has become a crucial task. Currently, drilling sites mainly rely on injecting plugging materials into the formation to address lost circulation. The selection and formulation of plugging materials are crucial to their effectiveness. In laboratory settings, researchers often conduct plugging experiments on fracture plates to simulate field conditions for addressing fracture-induced leakage. By combining these experiments with parameters derived from plugging experiments, researchers can continuously optimize the formulation of plugging slurries and propose more targeted plugging strategies. However, while laboratory simulations of field conditions can be achieved, the actual accumulation of plugging materials in the fracture plates remains difficult to accurately determine. This leads to a certain degree of blindness in the selection of plugging materials and formulation adjustments. Without a precise understanding of the spatial accumulation of plugging materials in the fracture plates, it is difficult to ensure the integrity and effectiveness of the plugging process.

[0003] Industrial CT scanners are advanced nondestructive testing devices that can "see through" the internal structure of an object, revealing its internal structure and features. Scanning a sealed joint with an industrial CT scanner provides a visual understanding of the spatial accumulation of the sealing material within the joint. This provides a powerful basis for adjusting the proportions of sealing materials and optimizing the sealing formula. However, existing industrial CT scanners face challenges when working with metal joints. Due to the properties of metal, it blocks CT signals, making it impossible for industrial CT scanners to see through and scan metal joints. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a leak-proof seam plate and its forming method and forming mold, so as to solve the problem that the existing metal seam plates cannot be "see through" by industrial CT scanners.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A first aspect of the present invention provides a forming mold for a leak-proof seam plate, the forming mold comprising a main body and a sealing and fixing component;

[0007] The main body includes a first seam plate portion and a second seam plate portion; the sealing and fixing components are arranged at both ends of the first seam plate portion and the second seam plate portion;

[0008] The first part of the slit plate is a semi-cylindrical mold with a hollow interior, and the second part of the slit plate is a solid semi-cylindrical mold. The inner side surface of the first part of the slit plate and the rectangular cross-section of the second part of the slit plate are arranged opposite to each other, and the edge of the inner side surface of the first part of the slit plate is fixedly connected to the edge of the rectangular cross-section of the second part of the slit plate;

[0009] An inclined boss is provided at the center of the rectangular cross section of the second portion of the seam plate, and the size of the inclined boss corresponds to the size of the crack of the leak-proof seam plate.

[0010] In a specific implementation process, semicircular protrusions are provided on both edges of the rectangular cross-section of the second portion of the seam plate.

[0011] In a specific implementation process, arched grooves are provided on both edges of the inner side surface of the first part of the seam plate.

[0012] During specific implementation, there is a gap between the inclined boss and the arched groove.

[0013] During the specific implementation process, a plurality of first-part through holes are opened on the edge of the inner side surface of the first part of the slit plate, and a plurality of second-part through holes are opened on the edge of the rectangular cross-section of the second part of the slit plate. The first-part through holes and the second-part through holes are connected to the first part of the slit plate and the second part of the slit plate by slit plate connecting screws.

[0014] In the specific implementation process, the sealing and fixing includes an end face sealing plate and an end face fixing ring;

[0015] The end face sealing plate and the end face fixing ring are respectively fixedly arranged at the two ends of the main body.

[0016] A second aspect of the present invention provides a method for forming a leak-proof seam plate, based on the molding die of the leak-proof seam plate, comprising the following steps:

[0017] S1: Designing the size of the inclined boss of the second portion of the seam plate according to the size of the leak-proof seam plate; connecting the first and second portions of the seam plate to form a main body, and connecting the main body to the sealing fixing component to form a forming mold for the leak-proof seam plate;

[0018] S2: pouring a gelling material into a mold for forming a leak-proof seam plate, stirring to remove bubbles and then waiting for solidification, and demoulding after the gelling material is completely solidified to obtain a mold;

[0019] S3: Repeat S1 and S2 to make another model;

[0020] S4: The cross sections of the two models are relatively combined and fixed to produce a leak-proof seam plate.

[0021] In a specific implementation process, the step S1 further includes an anti-sticking step, which is to coat a layer of anti-sticking material on the first part of the seam plate, the second part of the seam plate and the inner wall of the sealing and fixing component.

[0022] In a specific implementation process, in S1, the sealing and fixing component includes an end face sealing plate and an end face fixing ring;

[0023] The process of connecting the main body and the sealing fixing component to form the forming mold of the leak-proof seam plate is as follows:

[0024] The end face sealing plate and the end face fixing ring are respectively fixedly arranged at the two ends of the main body, and connected to form a forming mold of the leak-proof seam plate.

[0025] A third aspect of the present invention provides a leak-proofing seam plate, which is manufactured according to the molding die of the leak-proofing seam plate, or according to the molding method of the leak-proofing seam plate.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention provides a forming mold for a leak-proof seam plate. In indoor experiments, wedge-shaped seam plates are often used to simulate the shape of underground cracks. The forming mold can select different second parts of the seam plate according to needs. By designing the size of the inclined boss of the second part of the seam plate and combining it with the first part of the seam plate, seam plates with different openings can be obtained to simulate cracks of different sizes.

[0028] The present invention provides a method for forming a leak-proof seam plate. A forming mold for the leak-proof seam plate is used to load a gelling material into the mold and wait for it to solidify. After the material is completely solidified, the mold is disassembled and the seam plate is taken out. The seam plate is simple to manufacture, and the manufactured seam plate is transparent to industrial CT scanner signals.

[0029] The present invention provides a leak-proof seam plate, which is manufactured using the above-mentioned leak-proof seam plate forming mold and leak-proof seam plate forming method. Unlike metal materials that shield CT signals, the seam plate provided by the present invention is transparent to industrial CT scanner signals. After the leak-proof experiment is completed, the seam plate filled with the leak-proof material is taken out and scanned using industrial CT to obtain the internal information of the seam plate that can be seen through, thereby replacing the metal seam plate to evaluate the leak-proof effect. This solves the current problem that metal seam plates cannot be "seen through", is conducive to guiding the adjustment of leak-proof formulas, and is of great significance in providing theoretical support for on-site leak-proof construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the leak-proof seam plate forming mold of the present invention;

[0031] Figure 2 A side cross-sectional view of the second portion of the seam plate of the present invention;

[0032] Figure 3 Fig. 2 is a perspective view of a second part of the joint plate of the present application;

[0033] Figure 4 Fig. 1 is a perspective view of a first part of the joint plate of the present application;

[0034] Figure 5 Fig. 3 is a perspective view of the end face sealing plate of the present application;

[0035] Figure 6 Fig. 4 is a perspective view of the end face fixing ring of the present application;

[0036] Figure 7 Fig. 5 is a flow chart of the forming method of the joint plate of the present application.

[0037] Wherein: 1 - first part of the joint plate; 2 - second part of the joint plate; 3 - end face sealing plate; 4 - end face fixing ring; 5 - joint plate connecting screw; 6 - first end face fixing screw; 7 - second end face fixing screw. DETAILED DESCRIPTION

[0038] In order to make the person skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0039] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or a chronological sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0040] The present application will be described in further detail below in conjunction with the drawings:

[0041] Referring to Figure 1 , the first aspect of the present application provides a forming mold of a joint plate, mainly comprising a main body and a sealing and fixing component; the sealing and fixing component is arranged at both ends of the main body.

[0042] Furthermore, the main body includes a first seam plate part 1 and a second seam plate part 2; the sealing and fixing components include an end face sealing plate 3 and an end face fixing ring 4; the end face sealing plate 3 and the end face fixing ring 4 are respectively fixedly arranged at both ends of the first seam plate part 1 and the second seam plate part 2.

[0043] The specific connections and component locations are as follows:

[0044] The first part 1 of the seam plate is a semi-cylindrical mold with a hollow interior, while the second part 2 of the seam plate is a solid semi-cylindrical mold. The inner side surface of the first part 1 and the rectangular cross-section of the second part 2 are arranged relative to each other, and the edge of the inner side surface of the first part 1 is fixedly connected to the edge of the rectangular cross-section of the second part 2. An inclined boss is provided at the center of the rectangular cross-section of the second part 2, and the size of the inclined boss corresponds to the size of the crack in the leak-proof seam plate. The first part 1 of the seam plate remains unchanged, and the size of the protruding portion of the second part 2, i.e., the size of the inclined boss, determines the opening of the crack. Different second parts 2 of the seam plate can be selected as needed and combined with the first part 1 to obtain seam plates with different openings.

[0045] In the specific implementation process, Figure 2 as well as Figure 3 As shown, semicircular protrusions are provided on both edges of the rectangular cross-section of the second portion 2 of the slit plate, and an inclined boss is provided at the center of the rectangular cross-section of the second portion 2 of the slit plate.

[0046] In the specific implementation process, Figure 4 As shown, arched grooves are provided on both edges of the inner side of the first part 1 of the seam plate. Figure 1 As shown, there is a gap between the inclined boss and the arched groove.

[0047] In the specific implementation process, the edge of the inner side surface of the first part 1 of the seam plate is fixedly connected to the edge of the rectangular cross section of the second part 2 of the seam plate. The specific connection method is as follows:

[0048] Several first part through holes are opened on the edge of the inner side surface of the first part 1 of the slit plate, and several second part through holes are opened on the edge of the rectangular cross-section of the second part 2 of the slit plate. The first part through holes and the second part through holes are connected to the first part 1 and the second part 2 of the slit plate by slit plate connecting screws 5.

[0049] In the specific implementation process, the end face sealing plate 3 and the end face fixing ring 4 are fixedly arranged at both ends of the main body, and the specific connection method is as follows:

[0050] like Figure 5 as well as Figure 6As shown, the end face sealing plate 3 is provided with a plurality of through holes, and the end face fixing ring 4 is provided with a plurality of through holes, and the end face sealing plate 3 and the end face fixing ring 4 are respectively arranged at two ends of the main body formed by connecting the first part 1 and the second part 2 of the joint plate, and the first part 1 and the second part 2 of the joint plate are provided with openings corresponding to the positions of the through holes respectively arranged on the end face sealing plate 3 and the end face fixing ring 4.

[0051] Further, the main body and the end face fixing ring 4 are connected by the first end face fixing screw 6, and the main body and the end face sealing plate 3 are connected by the second end face fixing screw 7.

[0052] Referring to Figure 7 The application provides a forming method of a leak-stopping joint plate, comprising the following steps:

[0053] S1: The size of the inclined boss of the second part 2 of the joint plate is designed according to the size of the leak-stopping joint plate; the first part 1 and the second part 2 of the joint plate are connected to form a main body, and the main body is connected with a sealing fixing component to form a forming mold of the leak-stopping joint plate; further comprising an anti-sticking step, which is to coat an inner wall of the first part 1, the second part 2 and the sealing fixing component with an anti-sticking material;

[0054] S2: A gelling material is poured into the forming mold of the leak-stopping joint plate, and after stirring to remove bubbles, it is allowed to condense, and after the gelling material is completely solidified, it is demolded to obtain a model;

[0055] S3: Repeat S1 and S2 to obtain another model;

[0056] S4: The cross sections of the two models are combined and fixed to obtain a leak-stopping joint plate.

[0057] Further preferably, the anti-sticking material can be lubricating oil, and the gelling material can be high-strength resin material.

[0058] Specifically, in S1, the sealing fixing component comprises an end face sealing plate 3 and an end face fixing ring 4.

[0059] The process of connecting the main body with the sealing fixing component to form the forming mold of the leak-stopping joint plate is as follows:

[0060] The end face sealing plate 3 and the end face fixing ring 4 are respectively fixedly arranged at two ends of the main body to form the forming mold of the leak-stopping joint plate.

[0061] The size of the leak-stopping joint plate can be 8-5mm, 5-3mm, 3-1mm, or other arbitrary sizes according to needs.

[0062] The present invention provides a leak-proofing seam plate manufactured using the aforementioned leak-proofing seam plate forming mold or the aforementioned leak-proofing seam plate forming method. The leak-proofing seam plate is a wedge-shaped seam plate. The dimensions of the leak-proofing seam plate are compatible with the seam plate holder of an existing high-temperature and high-pressure dynamic and static leak-proofing simulation experimental device (model CLDL-III).

[0063] Example 1

[0064] This embodiment provides a forming mold for a leak-proof seam plate. The leak-proof seam plate mold mainly includes 6 types of parts, namely the second part 2 of the seam plate, the first part 1 of the seam plate, the end face sealing plate 3, the end face fixing ring 4, the first end face fixing screw 6, the second end face fixing screw 7, and the seam plate connecting screw 5.

[0065] The first part 1 of the slit plate and the second part 2 of the slit plate are combined to form a main body, and the end face sealing plate 3 and the end face fixing ring 4 are sealing and fixing components.

[0066] The first part 1 of the slit plate is a semi-cylindrical mold with a hollow interior, and the second part 2 of the slit plate is a solid semi-cylindrical mold; the inner side surface of the first part 1 of the slit plate and the rectangular cross-section of the second part 2 of the slit plate are arranged relative to each other, and the edge of the inner side surface of the first part 1 of the slit plate is fixedly connected to the edge of the rectangular cross-section of the second part 2 of the slit plate; an inclined boss is provided at the center of the rectangular cross-section of the slit plate second part 2, and semi-circular protrusions are provided on both edges of the rectangular cross-section of the slit plate second part 2. Arched grooves are provided on both edges of the inner side surface of the first part 1 of the slit plate, and the semi-circular protrusions correspond to the arched grooves, with a gap between the inclined bosses and the arched grooves. The crack width of the plugging slit plate is achieved by adjusting the second part 2 of the slit plate of different models. The protruding size of the inclined bosses of different slit plate second parts 2 is different. After assembly, different crack sizes of the plugging slit plates can be achieved.

[0067] The first part 1 of the seam plate and the second part 2 of the seam plate are connected by the seam plate connecting screws 5. After the two are connected, the end face fixing ring 4 and the end face sealing plate 3 are connected at both ends with the first end face fixing screws 6 and the second end face fixing screws 7 respectively to complete the assembly of the leak-proof seam plate.

[0068] This embodiment also provides a method for forming a leak-proof seam plate, comprising the following steps:

[0069] S1: Design the size of the inclined boss of the second part 2 of the seam plate according to the size of the leak-proof seam plate, apply a layer of lubricating oil to the inner walls of the first part 1, the second part 2 of the seam plate, and the sealing and fixing component to facilitate demolding; connect the first part 1 and the second part 2 of the seam plate to form a main body, and connect the main body to the sealing and fixing component to form a molding die for the leak-proof seam plate;

[0070] S2: Pour the cementing material into the forming mold of the plugging joint plate, wait for the cementing material to be cured after stirring to remove the bubbles, and then place the mold with the cementing material into a 90℃ water bath for curing; after the cementing material is completely solidified, demold to obtain a model;

[0071] S3: Repeat S1 and S2 to obtain another model;

[0072] S4: Fix the two models after the cross sections of the two models are combined, to obtain a plugging joint plate with an opening of 8-5mm.

[0073] The embodiment also provides a plugging joint plate obtained according to the forming mold of the plugging joint plate or obtained according to the forming method of the plugging joint plate. The plugging joint plate is a wedge-shaped joint plate. The size of the plugging joint plate is suitable for the joint plate holder of an existing high-temperature and high-pressure dynamic and static plugging simulation experimental device (model CLDL-III).

[0074] Embodiment 2

[0075] The embodiment provides a forming mold of a plugging joint plate. The plugging joint plate mold includes six types of parts, namely, a joint plate second part 2, a joint plate first part 1, an end face sealing plate 3, an end face fixing ring 4, a first end face fixing screw 6, a second end face fixing screw 7, and six joint plate connecting screws 5.

[0076] The joint plate first part 1 and the joint plate second part 2 are combined to form a main body, and the end face sealing plate 3 and the end face fixing ring 4 are sealing and fixing components.

[0077] The joint plate first part 1 is a hollow semicylindrical mold, and the joint plate second part 2 is a solid semicylindrical mold. The inner side surface of the joint plate first part 1 and the rectangular cross section of the joint plate second part 2 are oppositely arranged, and the edges of the inner side surface of the joint plate first part 1 are fixedly connected with the edges of the rectangular cross section of the joint plate second part 2. An inclined boss is arranged at the center position of the rectangular cross section of the joint plate second part 2, and a semicircular protrusion is arranged on each of the two edges of the rectangular cross section of the joint plate second part 2. An arc-shaped groove is formed on each of the two edges of the inner side surface of the joint plate first part 1, and the semicircular protrusion and the arc-shaped groove are correspondingly matched, and a gap is formed between the inclined boss and the arc-shaped groove.

[0078] Three through holes are formed on each of the two edges of the inner side surface of the joint plate first part 1, and six through holes are formed on each of the two edges of the rectangular cross section of the joint plate second part 2. The six through holes of the joint plate second part 2 correspond to the six through holes of the joint plate first part 1 in position, and the joint plate first part 1 and the joint plate second part 2 are connected through the joint plate connecting screws 5.

[0079] Indoor experiments often use wedge-shaped seam plates to simulate the shape of underground cracks. When making the mold, the size of the inclined boss of the second part 2 of the seam plate is designed to simulate cracks of different sizes.

[0080] This embodiment also provides a method for forming a leak-proof seam plate, comprising the following steps:

[0081] S1: Design the size of the inclined boss of the second part 2 of the slit plate according to the size of the plugging slit plate. Apply a layer of lubricating oil to the inner walls of the first part 1, the second part 2 of the slit plate, and the sealing fixing component to facilitate demolding. Connect the first part 1 and the second part 2 of the slit plate using the slit plate connecting screws 5 to form a main body. Connect the end face fixing ring 4 and the end face sealing plate 3 at both ends of the main body using the first end face fixing screws 6 and the second end face fixing screws 7 to form a forming mold for the plugging slit plate.

[0082] S2: Pour a gelling material into a mold for forming a leak-proof joint plate, stir to remove bubbles, and wait for solidification. Place the mold containing the gelling material in a 90°C water bath for curing. After the gelling material is completely solidified, remove the mold to obtain a model.

[0083] S3: Repeat S1 and S2, and adjust the size of the second model according to the size of the crack to be simulated to obtain another model;

[0084] S4: The cross sections of the two models are combined relative to each other and fixed with tape to produce a leak-proof seam plate with an opening of 5-3 mm.

[0085] This embodiment also provides a leak-proofing seam plate manufactured using the aforementioned leak-proofing seam plate forming mold or the aforementioned leak-proofing seam plate forming method. The leak-proofing seam plate is wedge-shaped. Its dimensions are compatible with the seam plate holder of an existing high-temperature, high-pressure, dynamic and static leak-proofing simulation test apparatus (model CLDL-III).

[0086] Example 3

[0087] This embodiment provides a forming mold for a leak-proof seam plate. The leak-proof seam plate mold includes a total of 6 types of parts, namely the second part 2 of the seam plate, the first part 1 of the seam plate, the end face sealing plate 3, the end face fixing ring 4, 4 first end face fixing screws 6, 4 second end face fixing screws 7, and the seam plate connecting screws 5.

[0088] The first part 1 of the slit plate and the second part 2 of the slit plate are combined to form a main body, and the end face sealing plate 3 and the end face fixing ring 4 are sealing and fixing components.

[0089] The first part 1 of the slit plate is a semi-cylindrical mold with a hollow interior, and the second part 2 of the slit plate is a solid semi-cylindrical mold; the inner side surface of the first part 1 of the slit plate and the rectangular cross-section of the second part 2 of the slit plate are arranged opposite to each other, and the edge of the inner side surface of the first part 1 of the slit plate is fixedly connected to the edge of the rectangular cross-section of the second part 2 of the slit plate; an inclined boss is provided at the center position of the rectangular cross-section of the second part 2 of the slit plate, and semicircular bosses are provided on both edges of the rectangular cross-section of the second part 2 of the slit plate, and arched grooves are provided on both edges of the inner side surface of the first part 1 of the slit plate, and the semicircular bosses correspond to the arched grooves, and there is a gap between the inclined boss and the arched groove.

[0090] The end sealing plate 3 has four through-holes, and the end retaining ring 4 has four through-holes. The end sealing plate 3 and the end retaining ring 4 are fixed to the ends of the first and second slit plate sections 1 and 2, respectively. The first and second slit plate sections 1 and 2 each have four openings, corresponding to the four through-holes in the end sealing plate 3 and the end retaining ring 4, respectively. The end retaining ring 4 is connected to the main body via first end-face fixing screws 6, and the end sealing plate 3 is connected to the main body via second end-face fixing screws 7.

[0091] This embodiment also provides a method for forming a leak-proof seam plate, comprising the following steps:

[0092] S1: Design the size of the inclined boss of the second part 2 of the slit plate according to the size of the plugging slit plate. Apply a layer of lubricating oil to the inner walls of the first part 1, the second part 2 of the slit plate, and the sealing fixing component to facilitate demolding. Connect the first part 1 and the second part 2 of the slit plate using the slit plate connecting screws 5 to form a main body. Connect the end face fixing ring 4 and the end face sealing plate 3 at both ends of the main body using the first end face fixing screws 6 and the second end face fixing screws 7 to form a forming mold for the plugging slit plate.

[0093] S2: Pour a gelling material into a mold for forming a leak-proof joint plate, stir to remove bubbles, and wait for solidification. Place the mold containing the gelling material in a 90°C water bath for curing. After the gelling material is completely solidified, remove the mold to obtain a model.

[0094] S3: Repeat S1 and S2, and adjust the size of the second model according to the size of the crack to be simulated to obtain another model;

[0095] S4: The cross sections of the two models are combined relative to each other and fixed with tape to produce a leak-proof seam plate with an opening of 3-1 mm.

[0096] This embodiment also provides a leak-proofing seam plate manufactured using the aforementioned leak-proofing seam plate forming mold or the aforementioned leak-proofing seam plate forming method. The leak-proofing seam plate is wedge-shaped. Its dimensions are compatible with the seam plate holder of an existing high-temperature, high-pressure, dynamic and static leak-proofing simulation test apparatus (model CLDL-III).

[0097] The seam plate provided by the present invention is transmissive to the signal of the industrial CT scanner. After the plugging experiment is completed, the seam plate filled with the plugging material is taken out and scanned by industrial CT to obtain the internal information of the transparent seam plate, which is used to replace the metal seam plate to evaluate the plugging effect. This solves the current problem that metal seam plates cannot be "transmitted", is conducive to guiding the adjustment of the plugging formula, and is of great significance in providing theoretical support for on-site plugging construction.

[0098] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A forming die for a leak-proof seam plate, characterized in that: The forming mold includes a main body and a sealing and fixing component; The main body comprises a first seam plate part (1) and a second seam plate part (2); the sealing and fixing components are arranged at both ends of the first seam plate part (1) and the second seam plate part (2); The first part (1) of the slit plate is a semi-cylindrical mold with a hollow interior, and the second part (2) of the slit plate is a solid semi-cylindrical mold. The inner side surface of the first part (1) of the slit plate and the rectangular cross-section of the second part (2) of the slit plate are arranged opposite to each other, and the edge of the inner side surface of the first part (1) of the slit plate is fixedly connected to the edge of the rectangular cross-section of the second part (2) of the slit plate. An inclined boss is provided at the center of the rectangular cross section of the second portion (2) of the seam plate, and the size of the inclined boss corresponds to the size of the crack of the leak-proof seam plate.

2. The forming die of the leak-proof seam plate according to claim 1, characterized in that: Semicircular protrusions are provided on both edges of the rectangular cross section of the second portion (2) of the seam plate.

3. The forming die of the leak-proof seam plate according to claim 1, characterized in that: Arched grooves are provided on both edges of the inner side surface of the first part (1) of the seam plate.

4. The forming die of the leak-proof seam plate according to claim 3, characterized in that: There is a gap between the inclined boss and the arched groove.

5. The forming die of the leak-proof seam plate according to claim 1, characterized in that: A plurality of first-part through holes are provided on the edge of the inner side surface of the first part (1) of the slit plate, and a plurality of second-part through holes are provided on the edge of the rectangular cross-section of the second part (2) of the slit plate. The first-part through holes and the second-part through holes are connected to the first part (1) and the second part (2) of the slit plate via slit plate connecting screws (5).

6. The forming die of the leak-proof seam plate according to claim 1, characterized in that: The sealing and fixing comprises an end face sealing plate (3) and an end face fixing ring (4); The end face sealing plate (3) and the end face fixing ring (4) are respectively fixedly arranged at both ends of the main body.

7. A method for forming a leak-proof seam plate, characterized in that: The forming mold of the leak-proof seam plate according to any one of claims 1 to 6 comprises the following steps: S1: Designing the size of the inclined boss of the second part (2) of the seam plate according to the size of the leak-proof seam plate; connecting the first part (1) of the seam plate and the second part (2) of the seam plate to form a main body, and connecting the main body with the sealing fixing component to form a forming mold of the leak-proof seam plate; S2: pouring a gelling material into a mold for forming a leak-proof seam plate, stirring to remove bubbles and then waiting for solidification, and demoulding after the gelling material is completely solidified to obtain a mold; S3: Repeat S1 and S2 to make another model; S4: The cross sections of the two models are relatively combined and fixed to produce a leak-proof seam plate.

8. The method for forming a leak-proof seam plate according to claim 7, characterized in that: Said S1 also includes an anti-sticking step, wherein said anti-sticking step is to coat a layer of anti-sticking material on the inner wall of the first part (1) of the seam plate, the second part (2) of the seam plate and the sealing and fixing component.

9. The method for forming a leak-proof seam plate according to claim 7, characterized in that: In the above-mentioned S1, the sealing and fixing component includes an end face sealing plate (3) and an end face fixing ring (4); The process of connecting the main body and the sealing fixing component to form the forming mold of the leak-proof seam plate is as follows: The end face sealing plate (3) and the end face fixing ring (4) are respectively fixedly arranged at the two ends of the main body and connected to form a forming mold of the leak-proof seam plate.

10. A leak-proof plate, characterized in that: It is made according to the forming mold of the leak-proof seam plate according to any one of claims 1 to 6, or made according to the forming method of the leak-proof seam plate according to any one of claims 7 to 9.

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