Bridge plug protection device

Abstract

The utility model discloses a bridge plug protection device which comprises a sleeve and an installation piece, an annular cover is fixedly arranged on the outer wall of the sleeve in a sleeved mode, a plurality of through holes are formed in the side wall of the sleeve and correspond to the inner wall of the annular cover, and the installation piece is located in the annular cover and comprises an outer gear ring, a plurality of gear columns and a plurality of racks. The outer gear ring is rotationally arranged on the outer wall of the sleeve in a sleeved mode, the gear columns are meshed with the racks and the outer gear ring respectively, the racks are arranged in the through holes in a sliding and sleeved mode, the through holes are sleeved with the racks in a sliding mode, a connecting mechanism of the sleeve and the bridge plug pushing cylinder is formed, and further the outer gear ring is meshed with the gear columns. A worker only needs to rotate one outer gear ring to drive the racks to be inserted into the fixing hole positions of the bridge plug pushing cylinder, so that automatic disassembly and assembly of the sleeve and the bridge plug pushing cylinder are achieved, multiple parts do not need to be operated, and the construction efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil and natural gas exploitation, in particular to a bridge plug protection device. Background Art

[0002] During the on-site assembly and hoisting into the well at the well site, in order to prevent the bridge plug from being damaged due to collision and affecting the downhole operation, some corresponding protective measures are usually taken. For example, CN215804404U is a utility model patent for a bridge plug protection device. During the vertical lifting of the cable multi-stage perforating pipe string, the lower end bridge plug can be protected from being damaged by collision and impact. The device includes a protective tube, an annular clamp and a pair of pins. The protective tube is sleeved outside the bridge plug. The annular clamp, the protective tube and the bridge plug push tube are fixedly connected by the pins. The annular clamp is composed of two half rings. When in use, the two half rings are closed, the two pins are screwed on and the lock is locked; when disassembled, the lock and the two pins are opened.

[0003] However, the above device requires the operation of two pins and a lock buckle during both the use and disassembly processes, which results in more operation steps and lower construction efficiency. Utility Model Content

[0004] The utility model aims to overcome the above technical deficiencies and propose a bridge plug protection device to solve the technical problem that the protection device in the prior art has many opening and closing steps, resulting in low construction efficiency.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a bridge plug protection device, comprising:

[0007] A sleeve, wherein an annular cover is fixedly sleeved on the outer wall of the sleeve, and a plurality of through holes are opened on the side wall of the sleeve, and the through holes correspond to the inner wall of the annular cover;

[0008] The mounting part is located in the annular cover, and the mounting part includes an outer gear ring, a plurality of gear columns and a plurality of racks. The outer gear ring is rotatably sleeved on the outer wall of the sleeve, and each gear column is respectively meshed with each rack and the outer gear ring, and each rack is slidably sleeved in each through hole.

[0009] In some embodiments, an annular groove is formed on the outer wall of the sleeve, and the inner wall of the outer gear ring is rotatably embedded in the annular groove.

[0010] In some embodiments, the annular cover is provided with a plurality of accommodating cavities, the gear column is rotatably connected in the accommodating cavity, and the side of the rack away from the gear column is slidably connected to the inner wall of the accommodating cavity.

[0011] In some embodiments, an arc-shaped channel is provided on one side of the annular cover, and a plurality of pull rods are fixedly connected to one side of the external gear ring, and each of the pull rods penetrates through the arc-shaped channel.

[0012] In some embodiments, anti-slip threads are provided on the outer surface of the pull rod.

[0013] In some embodiments, a reinforcing ring is fixedly connected to one end of each of the pull rods away from the external gear ring.

[0014] In some embodiments, a threaded hole is provided on the side wall of the reinforcing ring, and a pin is threadedly sleeved in the threaded hole, and the pin is used to abut against the outer wall of the sleeve.

[0015] In some embodiments, the length of the sleeve is greater than the length of the bridge plug.

[0016] In some embodiments, the inner diameter of the sleeve is greater than the outer diameter of the bridge plug pushing cylinder.

[0017] In some embodiments, the size of the through hole is the same as the size of the fixed hole position of the bridge plug pushing cylinder.

[0018] Compared with the prior art, a bridge plug protection device provided by the present utility model forms a connection mechanism between the sleeve and the bridge plug pushing cylinder by the rack slidingly sleeved in the through hole. Further, through the meshing of the external gear ring and each gear column, it enables the staff to only rotate one external gear ring, and then drive each rack to insert into the fixed hole position of the bridge plug pushing cylinder, thereby realizing the automatic disassembly and assembly of the sleeve and the bridge plug pushing cylinder, without the need to operate multiple parts, effectively improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional view of a bridge plug protection device provided by an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a schematic structural view of the mounting member in

[0021] Figure 3 is Figure 1 a schematic structural view of the sleeve in (without the annular cover);

[0022] Figure 4 is a schematic connection relationship view of a bridge plug protection device, a bridge upper pushing cylinder and a bridge plug provided by an embodiment of the present utility model.

[0023] Description of reference numerals: 1. Sleeve; 11. Ring cover; 111. Accommodation cavity; 112. Arc-shaped channel; 12. Through hole; 13. Ring groove; 2. Mounting part; 21. External gear ring; 211. Pulling rod; 212. Anti-slip pattern; 213. Reinforcing ring; 214. Threaded hole; 215. Pin; 22. Gear column; 23. Rack; 3. Bridge plug pushing cylinder; 31. Fixed hole position; 4. Bridge plug. Detailed implementation manners

[0024] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following further details the present utility model in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0025] In order to solve the technical problem that the opening and closing steps of the protection device are numerous, resulting in low construction efficiency, the present utility model provides a bridge plug protection device, which can reduce the operation steps of the protection device and improve the construction efficiency.

[0026] It should be noted that the bridge plug protection device described in the present utility model is used for but not limited to bridge plugs, etc. For the convenience of description, in the present utility model, only a bridge plug protection device applied to a bridge plug is taken as an example for description, and the principle of a bridge plug protection device applied to other types of equipment is substantially the same as that applied to a bridge plug, and will not be elaborated one by one here.

[0027] Please refer to Figure 1 - Figure 4 , in which Figure 1 is a schematic structural diagram of a bridge plug protection device in an embodiment of the present utility model. A bridge plug protection device includes a sleeve 1 and a mounting part 2. An annular cover 11 is fixedly sleeved on the outer wall of the sleeve 1. A plurality of through holes 12 are formed in the side wall of the sleeve 1, and the through holes 12 correspond to the inner wall of the annular cover 11. The mounting part 2 is located inside the annular cover 11. The mounting part 2 includes an external gear ring 21, a plurality of gear columns 22 and a plurality of racks 23. The external gear ring 21 is rotatably sleeved on the outer wall of the sleeve 1. Each gear column 22 meshes with each rack 23 and the external gear ring 21 respectively, and each rack 23 is slidably sleeved in each through hole 12.

[0028] In this embodiment, by sliding the rack 23 in the through hole 12, a connection mechanism between the sleeve 1 and the bridge plug pushing cylinder 3 is formed. Further, by meshing the external gear ring 21 with each gear column 22, it enables the staff to drive each rack 23 to insert into the fixed hole position 31 of the bridge plug pushing cylinder 3 only by rotating one external gear ring 21, thereby realizing the automatic disassembly and assembly of the sleeve 1 and the bridge plug pushing cylinder 3, without the need to operate multiple parts, effectively improving the construction efficiency.

[0029] First, the sleeve 1 is sleeved on the bridge plug pushing cylinder 3, so that the through holes 12 correspond to the fixed hole positions 31 of the bridge plug pushing cylinder 3 one by one; then, the external gear ring 21 is driven to rotate, and the external gear ring 21 drives each gear column 22 to rotate; finally, each gear column 22 drives each rack 23 to penetrate through the through holes 12 and insert into the fixed hole positions 31 of the bridge plug pushing cylinder 3, thus completing the fixation of the sleeve 1 and the bridge plug pushing cylinder 3 and realizing the protection of the bridge plug 4.

[0030] In one embodiment, please refer to Figure 2 and Figure 3 , a ring groove 13 is formed on the outer wall of the sleeve 1, and the inner wall of the external gear ring 21 is rotatably embedded in the ring groove 13.

[0031] In this embodiment, the function of the ring groove 13 is to limit the position of the external gear ring 21, ensure that the external gear ring 21 always rotates at the preset position, and avoid dislocation.

[0032] In one embodiment, please refer to Figure 1 and Figure 2 , the annular cover 11 is provided with a plurality of accommodating cavities 111, the gear columns 22 are rotatably connected in the accommodating cavities 111, and one side of the rack 23 facing away from the gear column 22 is slidably connected to the inner wall of the accommodating cavity 111.

[0033] In this embodiment, the function of the accommodating cavity 111 is to accommodate the gear columns 22 and the racks 23. The axial direction of the gear columns 22 is parallel to the axial direction of the sleeve 1. The racks 23 and the external gear ring 21 are arranged in a staggered layer. The racks 23 are slidably connected to the side wall of the external gear ring 21. At the same time, one side of the racks 23 facing away from the gear columns 22 is slidably connected to the inner wall of the accommodating cavity 111, all for improving the stability of the racks 23 during movement.

[0034] Furthermore, in order to ensure that the running track of the rack 23 does not deviate, a part of the rack 23 is always in contact with the through holes 12.

[0035] In one embodiment, please refer to Figure 1 and Figure 2 , an arc-shaped channel 112 is formed on one side of the annular cover 11, and a plurality of pull rods 211 are fixedly connected to one side of the external gear ring 21, and each pull rod 211 penetrates through the arc-shaped channel 112.

[0036] In this embodiment, the function of the arc-shaped channel 112 is to enable the pull rods 211 to extend out of the annular cover 11, facilitating the staff to drive the external gear ring 21 inside the annular cover 11 to rotate by operating the pull rods 211 outside the annular cover 11.

[0037] In one embodiment, please refer to Figure 2 , an anti-slip pattern 212 is formed on the outer surface of the pull rod 211.

[0038] In this embodiment, the function of the anti-slip pattern 212 is to facilitate the manual operation of the staff to pull the lever 211 and avoid slipping.

[0039] In one embodiment, please refer to Figure 1 and Figure 2 , a reinforcing ring 213 is fixedly connected to one end of each pull rod 211 away from the external gear ring 21.

[0040] In this embodiment, the function of the reinforcing ring 213 is to improve the stability between the pull rods 211.

[0041] In one embodiment, please refer to Figure 1 and Figure 2 , a threaded hole 214 is formed in the side wall of the reinforcing ring 213, and a pin 215 is sleeved in the threaded hole 214, and the pin 215 is used to abut against the outer wall of the sleeve 1.

[0042] In this embodiment, the pin 215 is threadedly sleeved in the threaded hole 214, and the rotation of the reinforcing ring 213 is controlled by adjusting the friction between the pin 215 and the outer surface of the sleeve 1. When the rotation of the reinforcing ring 213 is not required, rotate the pin 215 to make it abut against the outer surface of the sleeve 1 and increase the friction between the pin 215 and the outer surface of the sleeve 1.

[0043] Furthermore, a buffer pad is fixedly connected to one end of the pin 215 abutting against the outer surface of the sleeve 1 to prevent the pin 215 from being scratched due to hard contact with the outer surface of the sleeve 1.

[0044] In one embodiment, please refer to Figure 3 - Figure 4 , the length of the sleeve 1 is greater than the length of the bridge plug 4.

[0045] In this embodiment, in order to achieve all-round protection of the bridge plug 4 by the sleeve 1, the length of the sleeve 1 needs to be greater than the length of the bridge plug 4 so that the sleeve 1 completely covers the bridge plug 4.

[0046] In one embodiment, please refer to Figure 3 - Figure 4 , the inner diameter of the sleeve 1 is greater than the outer diameter of the bridge plug pushing cylinder 3.

[0047] In this embodiment, in order to facilitate the sleeve 1 to be sleeved on the bridge plug pushing cylinder 3 and realize the fixed connection between the sleeve 1 and the bridge plug pushing cylinder 3, the inner diameter of the sleeve 1 needs to be greater than the outer diameter of the bridge plug pushing cylinder 3.

[0048] In one embodiment, please refer to Figure 2 - Figure 4 , the size of the through hole 12 is the same as the size of the fixed hole position 31 of the bridge plug pushing cylinder 3.

[0049] In this embodiment, in order to enable the rack 23 to smoothly enter and exit the fixed hole 31 of the bridge plug pushing cylinder 3 and prevent the rack 23 from shaking within the fixed hole 31 of the bridge plug pushing cylinder 3, the size of the through hole 12 is the same as that of the fixed hole 31 of the bridge plug pushing cylinder 3.

[0050] To better understand the present utility model, the following will Figures 1 to 4 detail the technical solution of the present utility model:

[0051] First, the sleeve 1 is sleeved on the bridge plug pushing cylinder 3 so that the through holes 12 correspond to the fixed holes 31 of the bridge plug pushing cylinder 3 one by one; then, manually pull any one of the pull rods 211 to rotate the external gear ring 21. The external gear ring 21 drives each gear column 22 to rotate, and each gear column 22 drives each rack 23 to pass through the through hole 12 and insert into the fixed hole 31 of the bridge plug pushing cylinder 3; finally, rotate the pin 215 so that the pin 215 abuts against the outer surface of the sleeve 1, preventing the reinforcement ring 213 from rotating independently, thus completing the fixation of the sleeve 1 and the bridge plug pushing cylinder 3 and realizing the protection of the bridge plug 4. In the present utility model, the disassembly and assembly of the sleeve 1 and the bridge plug pushing cylinder 3 do not require operating multiple parts, effectively improving the construction efficiency.

[0052] The above specific embodiments of the present utility model do not constitute a limitation on the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model should be included within the protection scope of the claims of the present utility model.

Claims

1. A bridge plug protection device, characterized in that, Comprising: A sleeve, an annular cover is fixedly sleeved on the outer wall of the sleeve, several through holes are formed in the side wall of the sleeve, and the through holes correspond to the inner wall of the annular cover; A mounting member, the mounting member is located inside the annular cover, the mounting member includes an external gear ring, several gear columns and several racks, the external gear ring is rotatably sleeved on the outer wall of the sleeve, each of the gear columns is meshed with each of the racks and the external gear ring respectively, and each of the racks is slidably sleeved in each of the through holes.

2. The bridge plug protection device according to claim 1, characterized in that, A ring groove is formed in the outer wall of the sleeve, and the inner wall of the external gear ring is rotatably embedded in the ring groove.

3. The bridge plug protection device according to claim 1, characterized in that, Several accommodation cavities are formed in the annular cover, the gear columns are rotatably connected in the accommodation cavities, and one side of the rack away from the gear column is slidably connected to the inner wall of the accommodation cavity.

4. A bridge plug protection device according to claim 1, characterized in that, An arc-shaped channel is formed in one side of the annular cover, several pull rods are fixedly connected to one side of the external gear ring, and each of the pull rods penetrates through the arc-shaped channel.

5. The bridge plug protection device according to claim 4, characterized in that, Anti-slip threads are formed on the outer surface of the pull rod.

6. The bridge plug protection device according to claim 4, wherein, A reinforcing ring is fixedly connected to one end of each of the pull rods away from the external gear ring.

7. The bridge plug protection device according to claim 6, characterized in that, A threaded hole is formed in the side wall of the reinforcing ring, and a pin is threadedly sleeved in the threaded hole, and the pin is used to abut against the outer wall of the sleeve.

8. A bridge plug protection device according to claim 1, characterized in that, The length of the sleeve is greater than the length of the bridge plug.

9. A bridge plug protection device according to claim 1, wherein The inner diameter of the sleeve is greater than the outer diameter of the bridge plug pushing cylinder.

10. A bridge plug protection device according to claim 1, characterized in that, The size of the through hole is the same as the size of the fixed hole position of the bridge plug pushing cylinder.

Images