Well hole plug inflation tank

Abstract

The utility model discloses a wellhole plug inflation tank, which comprises a tank body, a gas inlet, a gas outlet, a gas inlet, a gas outlet, a gas outlet and a gas outlet, and is characterized in that the tank body is filled with high-pressure gas; the inflation control device comprises a mounting seat which is in threaded connection with the tank body; the bracket is arranged on one side of the top of the mounting seat; the protection frame is fixedly connected to one side of the bracket; the two guide rails are arranged in the middle of the protection frame and connected with the protection frame and the support; the through groove penetrates through the support and the protection frame and is located between the two guide rails. The sliding plate is slidably connected into the through groove, the bottom of the sliding plate is made of rubber materials, and a plurality of gears are arranged on the top of the sliding plate. The well hole plug inflation tank has the advantages that through a multi-stage inflation mode, the inflation speed of the inflation tank is low during misoperation, and the situation that a well hole plug is clamped above a designated position and cannot reach a blasting site is prevented.

Description

Technical Field

[0001] This utility model relates to an air-filling device for a wellbore plug, and more particularly to an air-filling tank for a wellbore plug. Background Technology

[0002] Borehole plugs are crucial devices used in downhole blasting operations to seal blast holes. They take the form of a sealing bag, and their performance directly affects the blasting effect and safety. Existing borehole plugs primarily achieve sealing by inflating them with an air tank; this sealing method is widely used in mining and engineering blasting.

[0003] The existing wellbore plugging process typically works as follows: First, the wellbore plug device is lowered along the borehole to a predetermined depth; then, the air tank valve is opened via a control device, allowing compressed air to enter the sealing bag; the sealing bag gradually expands under air pressure until it fits tightly against the borehole wall, thus forming an effective seal. Afterwards, a blasting device is introduced downhole onto the expanded sealing bag, which supports and positions the blasting device before the blasting operation is carried out.

[0004] However, existing wellbore plug inflation tanks have significant technical flaws. The main problem lies in the insufficient precision of the inflation process control. Current inflation control devices often employ simple valve switching methods, making it difficult for operators to precisely control the inflation rate. During the process of lowering the wellbore plug downhole, if an operational error occurs resulting in excessively rapid inflation, the sealing bag will begin to inflate before reaching the target position.

[0005] This premature expansion can have serious consequences. Due to the limited space in the wellbore, if the sealing bag expands outside the target location, it can easily become stuck against the well wall, preventing the well plug from being lowered to the intended depth. This not only affects the normal progress of blasting operations but may also lead to equipment damage or require additional work to deal with the stuck problem. Utility Model Content

[0006] The purpose of this invention is to provide a wellbore plug inflation tank. This wellbore plug inflation tank uses a multi-stage inflation method, which makes the inflation rate slower in case of misoperation, preventing the wellbore plug from getting stuck above the designated position and failing to reach the blasting location.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0008] A wellbore plug inflation tank includes: a tank body filled with high-pressure gas, and an air outlet at the top of the tank body; an inflation control device including: a mounting base threadedly connected to the tank body; a bracket disposed on one side of the top of the mounting base; a protective frame fixedly connected to one side of the bracket; two guide rails disposed in the middle of the protective frame, connecting the protective frame and the bracket; a through groove passing through the bracket and the protective frame, and located between the two guide rails; and a sliding plate slidably connected in the through groove, the bottom of the sliding plate being made of rubber material, and the top of the sliding plate having multiple positions.

[0009] The present invention is further configured such that: a push plate is provided at one end of the sliding plate, and the push plate abuts against the end side of the bracket.

[0010] The present invention is further configured to include multiple gear positions, including gear position one, gear position two, and gear position three.

[0011] The present invention is further configured such that: the gear position includes two rubber push blocks, each push block having a triangular structure, such that in the initial state one side of the protective frame is inserted between the push blocks.

[0012] The present invention is further configured such that: the second gear position includes a rubber push block 2, the push block 2 has a triangular structure, and a through hole 1 is provided between the push block 1 and the push block 2, the through hole 1 corresponding to the air outlet.

[0013] The present invention is further configured such that: the gear position three includes two rubber push blocks three, the push blocks three have a triangular structure, and a through hole two is provided between the push blocks three and the push blocks two.

[0014] The present invention is further configured such that the diameter of the second through hole is larger than the diameter of the first through hole.

[0015] The present invention is further configured as follows: one gear is used to close the air outlet, the second gear is used for slow inflation, and the third gear is used for fast inflation.

[0016] The present invention is further configured such that: the guide rail is used to limit the sliding direction of the sliding plate.

[0017] In summary, this utility model has the following beneficial effects:

[0018] This wellbore plug inflation tank employs multi-stage inflation control. By setting different levels and through-holes of varying diameters on the sliding plate, precise control of the inflation speed is achieved. In case of misoperation, the smaller diameter through-hole one will activate first, ensuring a slower inflation speed and preventing the wellbore plug from expanding prematurely at an untarget location and causing jamming. During normal operation, rapid inflation can be achieved through the larger diameter through-hole two, improving operational efficiency. The structure, combined with the guide rail and through-slot, not only ensures the stability of the sliding plate movement and the sealing effect but also simplifies the operation process, improves equipment reliability and maintenance convenience, and effectively solves the safety hazards caused by insufficient inflation control precision and inaccurate burst point problems in existing technologies. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0020] Figure 2 This is an exploded view of an embodiment;

[0021] Figure 3 This is a schematic diagram of the sliding plate structure;

[0022] Figure 4 This is a side view of the structure of an embodiment.

[0023] Reference numerals in the attached drawings: 1. Tank body; 2. Air outlet; 3. Mounting base; 4. Bracket; 5. Protective frame; 6. Guide rail; 7. Through groove; 8. Sliding plate; 9. Gear position one; 10. Gear position two; 11. Gear position three; 12. Push block one; 13. Push block two; 14. Through hole one; 15. Push block three; 16. Through hole two; 17. Push plate. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0026] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The present invention will be further described in detail below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, a wellbore plug inflation tank includes a tank body 1. The tank body 1 is filled with high-pressure gas. An air outlet 2 is provided at the top of the tank body 1. The air outlet 2 is used to allow the gas in the tank body 1 to leave from the tank body 1 and enter the wellbore plug to inflate the wellbore plug.

[0029] like Figure 1 , Figure 2 As shown, an inflation control device is connected to the outside of the tank body 1. The inflation control device includes a mounting base 3 threadedly connected to the tank body 1. A bracket 4 is provided on one side of the top of the mounting base 3. A protective frame 5 is fixedly connected to one side of the bracket 4. Correspondingly, two guide rails 6 are provided in the middle of the protective frame 5. The guide rails 6 connect the protective frame 5 and the bracket 4, improving the overall installation stability. Simultaneously, a through groove 7 is provided between the bracket 4 and the protective frame 5. The through groove 7 passes through the bracket 4 and the protective frame 5, and is located between the two guide rails 6.

[0030] like Figure 2 , Figure 3 As shown, a sliding plate 8 is slidably connected within the through groove 7. The bottom of the sliding plate 8 is made of rubber material and can seal the air outlet 2 of the air tank. The guide rail 6 limits the sliding direction of the sliding plate 8. The sliding plate 8 passes through the through groove 7, and its top is provided with multiple stops.

[0031] The multiple gears are gear 1 (9), gear 2 (10), and gear 3 (11).

[0032] Gear 19: Includes two rubber push blocks 12. Push blocks 12 are triangular in structure. In the initial state, one side of the protective frame 5 is inserted between push blocks 12, which can seal the air outlet 2.

[0033] Gear 2 10: Includes a rubber pusher block 2 13. Pusher block 2 13 has a triangular structure, and a through hole 14 is provided between pusher block 1 12 and pusher block 2 13. When the through hole 14 corresponds to the air outlet 2, it allows the gas in the air tank to inflate the outer well plug.

[0034] Gear 3 11: Includes two rubber push blocks 3 15. Push block 3 15 has a triangular structure, and a through hole 2 16 is provided between push block 3 15 and push block 2 13. The diameter of through hole 2 16 is larger than the diameter of through hole 1 14. When through hole 2 16 corresponds to the air outlet 2, it allows the gas in the air tank to accelerate the inflation of the well plug. After inflation is completed, the end of the bracket 4 is engaged between push blocks 3 15.

[0035] like Figure 3 , Figure 4 As shown above, a pusher plate 17 is provided at one end of the sliding plate 8. After the inflation port is completed, the pusher plate 17 abuts against the end of the support 4. In use, the inflation tank is placed in the wellbore plug (sealing strip), and then the wellbore plug, along with the inflation tank, is lowered into the well to the desired blasting position. The operator pushes the pusher plate 17 using a mechanical trigger device (this is existing technology and will not be described further here), causing the sliding plate 8 to move as a whole. In case of misoperation, the vent 2 will initially align with the through hole 14, resulting in a slow air output. During proper inflation, the through hole 16 aligns with the vent 2, increasing the air output speed and fixing the wellbore plug at the blasting position. The blasting device is then inserted, and the blasting process is carried out downhole.

[0036] In summary, this wellbore plug inflation tank employs multi-stage inflation control. By setting different levels and through holes of different diameters on the sliding plate 8, precise control of the inflation speed is achieved. In case of misoperation, the small-diameter through hole 14 will activate first, ensuring a slower inflation speed and preventing the wellbore plug from expanding prematurely at an untarget location and causing jamming. During normal operation, rapid inflation can be achieved through the large-diameter through hole 16, improving operational efficiency. The structure, combined with the guide rail 6 and the through groove 7, not only ensures the stability of the sliding plate 8's movement and the sealing effect but also simplifies the operation process, improves the equipment's reliability and maintenance convenience, and effectively solves the safety hazards caused by insufficient inflation control precision and inaccurate burst point problems in existing technologies.

[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A wellbore plug air filling tank, characterized in that, include: A tank body filled with high-pressure gas, and a gas outlet is provided on the top of the tank body; Inflation control device, including: The mounting base is threadedly connected to the tank body; The bracket is disposed on one side of the top of the mounting base; The protective frame is fixedly connected to one side of the bracket; Two guide rails are provided in the middle of the protective frame, and the guide rails connect the protective frame and the bracket; A through groove passes through the bracket and the protective frame, and is located between the two guide rails; A sliding plate is slidably connected within the through groove. The bottom of the sliding plate is made of rubber material, and the top of the sliding plate is provided with multiple stops.

2. The wellbore plug air filling tank according to claim 1, characterized in that: A push plate is provided at one end of the sliding plate, and the push plate abuts against the end side of the bracket.

3. The wellbore plug air filling tank according to claim 1, characterized in that: The multiple gear positions include gear position one, gear position two, and gear position three.

4. The wellbore plug air filling tank according to claim 3, characterized in that: The gear position includes two rubber push blocks, each push block having a triangular structure, such that in the initial state, one side of the protective frame is engaged between the push blocks.

5. The wellbore plug air filling tank according to claim 4, characterized in that: The second gear position includes a rubber push block 2, which has a triangular structure. A through hole 1 is provided between the push block 1 and the push block 2, and the through hole 1 corresponds to the air outlet.

6. The wellbore plug air filling tank according to claim 5, characterized in that: The gear position three includes two rubber push blocks three, each push block three having a triangular structure, and a through hole two is provided between the push block three and the push block two.

7. The wellbore plug air filling tank according to claim 6, characterized in that: The diameter of the second through hole is larger than the diameter of the first through hole.

8. The wellbore plug air filling tank according to claim 3, characterized in that: The first gear is used to close the air outlet, the second gear is used for slow inflation, and the third gear is used for rapid inflation.

9. The wellbore plug air filling tank according to claim 1, characterized in that: The guide rail is used to limit the sliding direction of the sliding plate.

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