Anti-rotation structure of a graded cementing device

Abstract

The utility model relates to the technical field of cementing head, and disclose a hierarchical cementing head anti -rotation structure, including injection pipe, the upper end fixed setting of injection pipe has the connecting pipe, the upper end fixed setting of connecting pipe has the injection cavity, the outside fixed setting of connecting pipe has the fixed groove, the lower end fixed setting of injection pipe has the connecting ring, the lower end fixed setting of connecting ring has the hierarchical pipe, the lower end fixed setting of hierarchical pipe has the fixed ring, the lower end fixed setting of fixed ring has the extension pipe, the lower end fixed setting of extension pipe has the cementing end. This hierarchical cementing head anti -rotation structure, through the improvement to the anti -rotation structure, make the splicing anti -rotation and non -return flow ability of this anti -rotation structure improve, in the actual use process of this anti -rotation structure, can splice installation and prevent rotation according to need to hierarchical cementing head, facilitate the non -return flow use of hierarchical cementing head, improved the anti -rotation effect of hierarchical cementing head anti -rotation structure.

Description

Technical Field

[0001] This utility model relates to the field of cement injection equipment technology, specifically to an anti-rotation structure for a graded cement injection equipment. Background Technology

[0002] A staged cementing injector is a special device installed at a predetermined position on the casing string to enable continuous or discontinuous cementing operations in two or more stages. It is called a staged cementing injector or staged clamp. The formation cannot withstand the pressure formed by injecting a long section of cement slurry at once.

[0003] Existing technology publication CN218030140U discloses a novel graded cement injector. By setting a sealing structure, a sealing sleeve can be limited on the graded cement injector during use, making it difficult for the sealing sleeve to detach. A limiting plate is fixedly connected inside the top rod, located on the surface of the hanging cylinder. Three rotating rods are fixedly inserted inside the pressure cylinder, evenly distributed on its surface. Rotating the rotating rods simultaneously drives the pressure cylinder to rotate, achieving the effect of rotating the pressure cylinder. Anti-slip protrusions are provided on the arc surfaces of the three rotating rods. A mounting bracket is located on the surface of the graded cement injector body and moves along its surface. An auxiliary structure is provided on the surface of the mounting bracket, including two sliding grooves. A fixing pad is fixedly installed on the inner wall of each sliding groove. An elastic pad is provided, and a contact frame is slidably connected to the inner wall of the chute. The contact frame is located on the surface of the fixed pad. By setting an auxiliary structure, the operator can be assisted in moving the mounting frame, thus facilitating the use of the sealing structure. A semi-circular groove is formed on the surface of each of the two contact frames, and a contact pad, which is a rubber pad, is fixedly installed on the inner wall of the semi-circular groove. The contact pad increases the friction between the operator's hand and the contact frame, facilitating the movement of the contact frame. A connecting ball is fixedly connected to the surface of each of the two contact frames. The connecting ball has a circular cross-section. Moving the connecting ball moves the contact frame, achieving the effect of moving the contact frame. By setting a sealing structure, the sealing sleeve can be limited on the grader cement injector when using it, making it less likely to fall off. The auxiliary structure also assists the operator in moving the mounting frame, thus facilitating the use of the sealing structure.

[0004] However, in the existing technology CN218030140U patent, the splicing anti-rotation and backflow prevention capabilities of a new type of graded cement injector are not good. As a result, in the actual use of the new type of graded cement injector, it is not possible to splice and install the graded cement injector as needed to prevent rotation, which makes it inconvenient to use the graded cement injector for backflow prevention and affects the anti-rotation effect of the new type of graded cement injector. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide an anti-rotation structure for a graded cement injector, so as to solve the problem of poor anti-rotation and backflow prevention capabilities of a novel graded cement injector proposed in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a structure for preventing rotation of a graded cement injector, comprising a water injection pipe, a connecting pipe fixedly disposed at the upper end of the water injection pipe, a water injection cavity fixedly disposed at the upper end of the connecting pipe, a fixing groove fixedly disposed on the outside of the connecting pipe, a connecting ring fixedly disposed at the lower end of the water injection pipe, a graded pipe fixedly disposed at the lower end of the connecting ring, a fixing ring fixedly disposed at the lower end of the graded pipe, an extension pipe fixedly disposed at the lower end of the fixing ring, and a cement injection end fixedly disposed at the lower end of the extension pipe.

[0009] As a further improvement of this utility model: a filter disc is fixedly installed inside the grading tube, and a connecting column is fixedly installed at the lower end of the filter disc. By improving the anti-rotation structure, the splicing anti-rotation and backflow prevention capabilities of the anti-rotation structure are improved. In the actual use of this anti-rotation structure, the grading cement injector can be spliced ​​and installed as needed to prevent rotation, which facilitates the use of the grading cement injector for backflow prevention and improves the anti-rotation effect of the anti-rotation structure of the grading cement injector.

[0010] As a further improvement of this utility model: an installation pipe is fixedly provided at the lower end of the first connecting column, and a flow stop cylinder is fixedly provided on the lower side of the installation pipe. The use of the water injection pipe facilitates the connection of the connecting pipe and the water injection cavity. Furthermore, the use of the connecting pipe and the water injection cavity further facilitates the connection and fixation of the graded cement injector.

[0011] As a further improvement of this utility model: a connecting post 2 is fixedly provided at the lower end of the flow stop cylinder, a connecting screw ring is fixedly provided inside the connecting ring, and a connecting groove is fixedly provided at the upper end of the connecting ring. The use of the fixing groove improves the fixing effect of the connecting pipe and the water injection cavity, and the use of the connecting ring facilitates the splicing of the graded pipe.

[0012] As a further improvement of this utility model: an anti-rotation button is movably provided at one end of the connecting ring, and a push block is fixedly provided at one end of the anti-rotation button. The use of the fixed ring and the extension tube facilitates the connection and use of the cement injection end, and improves the cement injection effect of the anti-rotation structure of the graded cement injector. Then, the use of the filter plate, the connecting column, and the installation tube improves the diversion effect of the anti-rotation structure of the graded cement injector.

[0013] As a further improvement of this utility model: a limit block is fixedly provided at the upper end of the anti-rotation button, and a reset spring is fixedly provided at one end of the limit block. By using the flow stop cylinder and the connecting column, the backflow prevention effect of the anti-rotation structure of the graded cement injector is improved. Then, by using the connecting screw ring, the connecting groove and the anti-rotation button, the connection effect of the anti-rotation structure of the graded cement injector is further improved.

[0014] As a further improvement of this utility model: a movable locking block is movably provided on one side of the pushing block, a second limiting block is fixedly provided at the lower end of the movable locking block, and a strong spring is fixedly provided at one end of the second limiting block. By using the movable locking block, the second limiting block, and the strong spring, the anti-rotation effect of the anti-rotation structure of the graded cement injector is improved.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The anti-rotation structure of the graded cement injector has been improved through improvements to its splicing anti-rotation and backflow prevention capabilities. In actual use, the graded cement injector can be spliced ​​and installed as needed to prevent rotation, making it convenient to use the graded cement injector for backflow prevention and improving the anti-rotation effect of the graded cement injector anti-rotation structure.

[0017] 2. The anti-rotation structure of this graded cement injector facilitates the connection of the connecting pipe and the water injection chamber through the use of the water injection pipe. Then, the use of the connecting pipe and the water injection chamber further facilitates the connection and fixation of the graded cement injector. Then, the use of the fixing groove improves the fixing effect of the connecting pipe and the water injection chamber. Finally, the use of the connecting ring facilitates the splicing of the graded pipe.

[0018] 3. The anti-rotation structure of this graded cement injector facilitates the connection of the cement injection end through the use of a fixing ring and an extension pipe, improving the cement injection effect of the anti-rotation structure. Then, the use of a filter disc, connecting column one, and installation pipe improves the diversion effect of the anti-rotation structure. Then, the use of a flow stop cylinder and connecting column two improves the backflow prevention effect of the anti-rotation structure. Then, the use of a connecting screw ring, connecting groove, and anti-rotation button further improves the connection effect of the anti-rotation structure. Finally, the use of a movable locking block, limit block two, and strong spring improves the anti-rotation effect of the anti-rotation structure.

[0019] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the flow-stopping cylinder structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the cement injection end structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the anti-rotation button structure of this utility model.

[0024] In the diagram: 1. Water injection pipe; 2. Connecting pipe; 3. Water injection chamber; 4. Fixing groove; 5. Connecting ring; 6. Grading pipe; 7. Fixing ring; 8. Extension pipe; 9. Cement injection end; 10. Filter disc; 11. Connecting post one; 12. Installation pipe; 13. Flow stop cylinder; 14. Connecting post two; 15. Connecting screw ring; 16. Connecting groove; 17. Anti-rotation button; 18. Push block; 19. Limiting block one; 20. Return spring; 21. Movable locking block; 22. Limiting block two; 23. Strong spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The first embodiment of this application is as follows: Please refer to... Figure 1 - Figure 3 This utility model provides a technical solution: a structure for preventing rotation of a graded cement injector, including a water injection pipe 1, a connecting pipe 2 fixedly installed at the upper end of the water injection pipe 1, a water injection cavity 3 fixedly installed at the upper end of the connecting pipe 2, a fixing groove 4 fixedly installed on the outside of the connecting pipe 2, a connecting ring 5 fixedly installed at the lower end of the water injection pipe 1, a graded pipe 6 fixedly installed at the lower end of the connecting ring 5, a fixing ring 7 fixedly installed at the lower end of the graded pipe 6, an extension pipe 8 fixedly installed at the lower end of the fixing ring 7, and a cement injection end 9 fixedly installed at the lower end of the extension pipe 8.

[0027] A filter disc 10 is fixedly installed inside the grading tube 6. A connecting post 11 is fixedly installed at the lower end of the filter disc 10. An installation tube 12 is fixedly installed at the lower end of the connecting post 11. A flow stop cylinder 13 is fixedly installed on the lower side of the installation tube 12. A connecting post 2 14 is fixedly installed at the lower end of the flow stop cylinder 13. A connecting screw ring 15 is fixedly installed inside the connecting ring 5. A connecting groove 16 is fixedly installed at the upper end of the connecting ring 5.

[0028] The above cases show that it is not possible to connect the anti-rotation splices of the graded cement injector as needed, which makes it inconvenient to use the anti-rotation structure of the graded cement injector.

[0029] The second embodiment of this application is as follows: Please refer to... Figure 1 - Figure 4 This utility model provides a technical solution: a structure for preventing rotation of a graded cement injector, including a water injection pipe 1, a connecting pipe 2 fixedly installed at the upper end of the water injection pipe 1, a water injection cavity 3 fixedly installed at the upper end of the connecting pipe 2, a fixing groove 4 fixedly installed on the outside of the connecting pipe 2, a connecting ring 5 fixedly installed at the lower end of the water injection pipe 1, a graded pipe 6 fixedly installed at the lower end of the connecting ring 5, a fixing ring 7 fixedly installed at the lower end of the graded pipe 6, an extension pipe 8 fixedly installed at the lower end of the fixing ring 7, and a cement injection end 9 fixedly installed at the lower end of the extension pipe 8.

[0030] A filter disc 10 is fixedly installed inside the grading pipe 6. A connecting post 11 is fixedly installed at the lower end of the filter disc 10. An installation pipe 12 is fixedly installed at the lower end of the connecting post 11. A flow stop cylinder 13 is fixedly installed on the lower side of the installation pipe 12. A connecting post 2 14 is fixedly installed at the lower end of the flow stop cylinder 13. A connecting screw ring 15 is fixedly installed inside the connecting ring 5. A connecting groove 16 is fixedly installed at the upper end of the connecting ring 5. The use of the water injection pipe 1 facilitates the connection of the connecting pipe 2 and the water injection chamber 3. The use of the connecting pipe 2 and the water injection chamber 3 further facilitates the connection and fixation of the grading cement injector. The use of the fixing groove 4 improves the fixing effect of the connecting pipe 2 and the water injection chamber 3. The use of the connecting ring 5 facilitates the splicing of the grading pipe 6.

[0031] An anti-rotation button 17 is movably mounted on one end of the connecting ring 5. A push block 18 is fixedly mounted on one end of the anti-rotation button 17. A limit block 19 is fixedly mounted on the upper end of the anti-rotation button 17. A return spring 20 is fixedly mounted on one end of the limit block 19. A movable locking block 21 is movably mounted on one side of the push block 18. A limit block 22 is fixedly mounted on the lower end of the movable locking block 21. A strong spring 23 is fixedly mounted on one end of the limit block 22. The use of the fixing ring 7 and the extension tube 8 facilitates the connection and use of the cement injection end 9, and improves the anti-rotation structure of the graded cement injector. The cement injector's anti-rotation structure improves the diversion effect through the use of filter disc 10, connecting column 11, and installation pipe 12. The anti-backflow effect of the anti-rotation structure is further improved through the use of flow stop cylinder 13 and connecting column 2 14. The connection effect of the anti-rotation structure is further improved through the use of connecting screw ring 15, connecting groove 16, and anti-rotation button 17. Finally, the anti-rotation effect of the anti-rotation structure is improved through the use of movable locking block 21, limit block 22, and strong spring 23.

[0032] Working Principle: First, the use of water injection pipe 1 facilitates the connection of connecting pipe 2 and water injection chamber 3. Then, the use of connecting pipe 2 and water injection chamber 3 further facilitates the connection and fixation of the graded cement injector. Then, the use of fixing groove 4 improves the fixing effect of connecting pipe 2 and water injection chamber 3. Then, the use of connecting ring 5 facilitates the splicing of graded pipe 6. Then, the use of fixing ring 7 and extension pipe 8 facilitates the connection of cement injection end 9, improving the cement injection effect of the graded cement injector's anti-rotation structure. Then, the use of filter plate 10, connecting column one 11, and installation pipe 12 improves the diversion effect of the graded cement injector's anti-rotation structure. Then, the use of flow stop cylinder 13 and connecting column two 14 improves the backflow prevention effect of the graded cement injector's anti-rotation structure. Then, the use of connecting screw ring 15, connecting groove 16, and anti-rotation button 17 further improves the connection effect of the graded cement injector's anti-rotation structure. Finally, the use of movable locking block 21, limit block two 22, and strong spring 23 improves the anti-rotation effect of the graded cement injector's anti-rotation structure.

[0033] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A structure for preventing rotation of a graded cement injector, comprising a water injection pipe (1), characterized in that: A connecting pipe (2) is fixedly installed at the upper end of the water injection pipe (1), a water injection cavity (3) is fixedly installed at the upper end of the connecting pipe (2), a fixing groove (4) is fixedly installed on the outside of the connecting pipe (2), a connecting ring (5) is fixedly installed at the lower end of the water injection pipe (1), a grading pipe (6) is fixedly installed at the lower end of the connecting ring (5), a fixing ring (7) is fixedly installed at the lower end of the grading pipe (6), an extension pipe (8) is fixedly installed at the lower end of the fixing ring (7), and a cement injection end (9) is fixedly installed at the lower end of the extension pipe (8).

2. The anti-rotation structure for a graded cement injector according to claim 1, characterized in that: A filter disc (10) is fixedly installed inside the grading tube (6), and a connecting column (11) is fixedly installed at the lower end of the filter disc (10).

3. The anti-rotation structure for a graded cement injector according to claim 2, characterized in that: An installation tube (12) is fixedly installed at the lower end of the connecting column (11), and a flow stop cylinder (13) is fixedly installed on the lower side of the installation tube (12).

4. The anti-rotation structure for a graded cement injector according to claim 3, characterized in that: The lower end of the flow stop cylinder (13) is fixedly provided with a connecting post 2 (14), the inside of the connecting ring (5) is fixedly provided with a connecting screw ring (15), and the upper end of the connecting ring (5) is fixedly provided with a connecting groove (16).

5. The anti-rotation structure for a graded cement injector according to claim 4, characterized in that: An anti-rotation button (17) is movably provided at one end of the connecting ring (5), and a push block (18) is fixedly provided at one end of the anti-rotation button (17).

6. The anti-rotation structure for a graded cement injector according to claim 5, characterized in that: The upper end of the anti-rotation button (17) is fixedly provided with a limit block (19), and a reset spring (20) is fixedly provided at one end of the limit block (19).

7. The anti-rotation structure for a graded cement injector according to claim 6, characterized in that: A movable locking block (21) is movably provided on one side of the pushing block (18), and a limiting block two (22) is fixedly provided at the lower end of the movable locking block (21), and a strong spring (23) is fixedly provided at one end of the limiting block two (22).

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