Low-temperature fully-soluble bridge plug for deep coal and rock gas horizontal well
Design No. 1 cone and No. 2 cone in a low -temperature full -soluble congestion in the deep coal rock level well, and combine the guidance skateboard, rotating rod and torque spring, realize the tilt of the bridge's head and the direction of the adjustment. The problem of stopping the movement of bridge plugs in the bending pipeline ensures that the stable fixing and effective blocking of the bridge plug is ensured.
Patent Information
- Application Number
- CN202420459769.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-11
AI Technical Summary
The existing low-temperature fully soluble bridge plugs are prone to stop moving in more curved pipes, resulting in limited movement position of the bridge plug and inability to effectively block the bridge.
Design a deep coal -rock gas level well with a low -temperature full -soluble bridge plug. By setting up the first and second cone, the opening of the closed sleeve is set, and , Realize the tilt of the soluble bridge plugs and the adjustment of adjustment, facilitate the overall entry of bridge plugs.
Through the above design, the bridge plug head can move and tilt when bending and impurities in the pipeline, driving torque springs and limited moving slide movements, and realizing the adjustment of the soluble bridge plug head. The problem of plugging on the curved path ensures the stable fixing and effective blocking of the bridge plug.
Smart Images
Figure CN222414800U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge plugs, in particular to a low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells. Background Art
[0002] Soluble bridge plug is a multifunctional and commonly used tool, which is characterized by soluble rubber and rubber-like appearance. It can change shape according to different environments, temperatures and materials. It contains powdered or granular materials inside, which can isolate different environmental channels and is used to control the flow between two environments. Low-temperature fully soluble bridge plugs are used for plugging in deep coal-rock gas horizontal wells, but existing bridge plugs are prone to stop moving before reaching the position in more curved pipelines. Many curved paths cause soluble bridge plugs to be blocked in the pipeline, which will limit the movement of the bridge plug. Utility Model Content
[0003] The purpose of the utility model is to provide a low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells, so as to solve the problem that the existing bridge plug proposed in the above-mentioned background technology easily stops moving before reaching the position in a relatively curved pipeline, and many curved paths cause the soluble bridge plug to be blocked in the pipeline, which will cause the problem of limited movement position of the bridge plug.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells, comprising an adapter push tube, a connecting ring is provided on the outer side of the adapter push tube, a sealing seat is provided on one side of the adapter push tube, a No. 1 closing sleeve is fixedly connected to one end of the adapter push tube, a No. 1 cone is provided on the inner side of the No. 1 closing sleeve, a top sleeve is provided on one side of the No. 1 cone, a No. 2 cone is provided on the side of the top sleeve away from the No. 1 cone, a No. 2 closing sleeve is provided on the outer side of the No. 2 cone, a No. 2 closing sleeve is fixedly connected to a supporting outer tube on one side of the No. 2 closing sleeve, an outer guide sleeve is fixedly connected to the outer side of the supporting outer tube, and the supporting outer The outer side of the cylinder is slidably connected with four connecting top plates, one side of the four connecting top plates is fixedly connected to the No. 2 closed sleeve, the end of the supporting outer cylinder away from the No. 2 closed sleeve is fixedly connected with an outer fixed cylinder, the inner side of the outer fixed cylinder is slidably connected with a sliding inner disk, one side of the four connecting top plates is fixedly connected to the sliding inner disk, one side of the sliding inner disk is installed with an adapter connecting rod, the inner side of the outer fixed cylinder is symmetrically slidably connected with two limit moving slides, one side of the two limit moving slides is slidably connected with a guide slide, the interiors of the two guide slides are rotatably connected with a rotating rod, and the two ends of the two rotating rods are rotatably connected with soluble bridge plugs.
[0005] As a preferred solution of the utility model: a No. 3 slip is provided on the outer side of the No. 2 closed sleeve.
[0006] As a preferred solution of the utility model: the outer side of the No. 2 closed sleeve is fixedly connected with No. 2 slips at equal distances.
[0007] As a preferred solution of the utility model: the interior of the No. 1 closed sleeve is provided with openings at equal intervals.
[0008] As a preferred solution of the utility model: a No. 1 slip is fixedly connected to the outer side of the No. 1 sealing sleeve.
[0009] As a preferred solution of the utility model: a torsion spring is sleeved on the outer sides of the two rotating rods, one end of the torsion spring is fixedly connected to the guide slide plate, and the other end of the torsion spring is fixedly connected to the soluble bridge plug.
[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model realizes the opening processing of the closing sleeve and the closing sleeve No. 1 by setting the No. 1 cone and the No. 2 cone, performs double closing processing by the closing sleeve No. 1 and the closing sleeve, and realizes that when the soluble bridge plug moves forward and encounters a bend in the pipeline and impurities appear in the pipeline by setting the guide slide, the rotating rod and the torsion spring, the soluble bridge plug is pushed and tilted when it encounters a bend in the pipeline and impurities appear in the pipeline, and the torsion spring is driven by the inclination of the soluble bridge plug to move the torsion spring and the limit movable slide, the limit movable slide slides in the outer fixed tube, and the torsion spring slides in the limit movable slide on one side of the limit movable slide, and the soluble bridge plug is guided and adjusted to facilitate the overall entry of the bridge plug. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the internal structure of the utility model;
[0012] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;
[0013] Figure 3 It is a schematic diagram of the partial internal structure of the utility model.
[0014] In the figure: 1. adapter push cylinder; 2. connecting ring; 3. sealing seat; 4. No. 1 closing sleeve; 5. No. 1 cone; 6. top sleeve; 7. No. 2 cone; 8. opening; 9. No. 1 slip; 10. No. 2 closing sleeve; 11. No. 3 slip; 12. No. 2 slip; 13. supporting outer cylinder; 14. connecting top plate; 15. outer guide sleeve; 16. adapter connecting rod; 17. outer fixed cylinder; 18. sliding inner disk; 19. limited moving slideway; 20. soluble bridge plug; 21. guide slide; 22. rotating rod; 23. torsion spring. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0016] See also Figures 1 to 3 The utility model provides a technical solution: a low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells, comprising an adapter push tube 1, a connecting ring 2 is arranged on the outer side of the adapter push tube 1, a sealing seat 3 is arranged on one side of the adapter push tube 1, a No. 1 closing sleeve 4 is fixedly connected to one end of the adapter push tube 1, a No. 1 cone 5 is arranged on the inner side of the No. 1 closing sleeve 4, a top sleeve 6 is arranged on one side of the No. 1 cone 5, a No. 2 cone 7 is arranged on the side of the top sleeve 6 away from the No. 1 cone 5, a No. 2 closing sleeve 10 is arranged on the outer side of the No. 2 cone 7, a support outer tube 13 is fixedly connected to one side of the No. 2 closing sleeve 10, an outer guide sleeve 15 is fixedly connected to the outer side of the support outer tube 13, four connecting top plates 14 are slidably connected to the outer side of the support outer tube 13, one side of the four connecting top plates 14 are fixedly connected to the No. 2 closing sleeve 10, and the support outer tube 13 is away from the No. 1 cone 5. One end of the No. 2 closed sleeve 10 is fixedly connected to an outer fixed cylinder 17, and the inner part of the outer fixed cylinder 17 is slidably connected to a sliding inner disk 18. One side of the four connecting top plates 14 is fixedly connected to the sliding inner disk 18, and an adapter connecting rod 16 is installed on one side of the sliding inner disk 18. The inner side of the outer fixed cylinder 17 is symmetrically slidably connected to two limiting movable slideways 19, and one side of the two limiting movable slideways 19 is slidably connected to a guide slide 21. The interiors of the two guide slides 21 are rotatably connected to a rotating rod 22, and the two ends of the two rotating rods 22 are rotatably connected to soluble bridge plugs 20, and the No. 1 closed sleeve 4 and the No. 2 closed sleeve 10 are pressed through the No. 1 cone 5 and the No. 2 cone 7 at the two ends of the top sleeve 6 respectively, so that the No. 2 closed sleeve 10 and the No. 1 closed sleeve 4 are expanded, stably fixed in the pipeline, and blocked.
[0017] Among them, a No. 3 slip 11 is provided on the outer side of the No. 2 sealing sleeve 10 to ensure the overall fixing stability of the bridge plug.
[0018] Among them, the outer side of the No. 2 sealing sleeve 10 is equidistantly fixedly connected with the No. 2 slip 12 to ensure the overall fixing stability of the bridge plug.
[0019] The interior of the No. 1 closed sleeve 4 is provided with openings 8 at equal intervals.
[0020] Among them, the outer side of the No. 1 sealing sleeve 4 is fixedly connected with the No. 1 slip 9 to further ensure the fixing stability of the entire bridge plug.
[0021] Among them, a torsion spring 23 is provided on the outer side of the two rotating rods 22, one end of the torsion spring 23 is fixedly connected to the guide slide 21, and the other end of the torsion spring 23 is fixedly connected to the soluble bridge plug 20. The rotation angle of the soluble bridge plug 20 can be reset by resetting the torsion spring 23.
[0022] Specifically, when in use, the soluble bridge plug 20 is inserted into the pipeline, and the soluble bridge plug 20 is pushed to adjust the angle when it is in the bent position. The soluble bridge plug 20 presses one of the rotating rods 22, the torsion spring 23 and the limiting movable slide 19 to move inward, and pulls the other rotating rod 22, the torsion spring 23 and the limiting movable slide 19 to move outward. The angle rotation of the soluble bridge plug 20 will press and pull the torsion spring 23, and the soluble bridge plug 20 is used to guide the whole to move, and the sliding inner disk 18 and the connecting top plate 14 are pulled outward by the adapter connecting rod 16, and the connecting top plate 14 drives the No. 2 closed sleeve 10 to move, and the No. 1 cone 5 and the No. 2 cone 7 at the two ends of the top sleeve 6 are used to press the No. 1 closed sleeve 4 and the No. 2 closed sleeve 10 respectively, so that the No. 2 closed sleeve 10 and the No. 1 closed sleeve 4 are expanded, stably fixed in the pipeline, and blocked.
[0023] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0024] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.
[0025] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low temperature fully soluble bridge plug for deep coal-rock gas horizontal wells, comprising an adapter push tube (1), characterized in that: The outer side of the adapter push tube (1) is provided with a connecting ring (2), one side of the adapter push tube (1) is provided with a sealing seat (3), one end of the adapter push tube (1) is fixedly connected to a No. 1 closed sleeve (4), the inner side of the No. 1 closed sleeve (4) is provided with a No. 1 cone (5), one side of the No. 1 cone (5) is provided with a top sleeve (6), the side of the top sleeve (6) away from the No. 1 cone (5) is provided with a No. 2 cone (7), the outer side of the No. 2 cone (7) is provided with a No. 2 closed sleeve (10), one side of the No. 2 closed sleeve (10) is fixedly connected to a supporting outer tube (13), the outer side of the supporting outer tube (13) is fixedly connected to an outer guide sleeve (15), the outer side of the supporting outer tube (13) is slidably connected to four connecting top plates (14), the four connecting top plates (14) ) are fixedly connected to the No. 2 closed sleeve (10) on one side, the end of the supporting outer cylinder (13) away from the No. 2 closed sleeve (10) is fixedly connected to the outer fixed cylinder (17), the inner part of the outer fixed cylinder (17) is slidably connected to the sliding inner disk (18), one side of the four connecting top plates (14) are fixedly connected to the sliding inner disk (18), one side of the sliding inner disk (18) is installed with an adapter connecting rod (16), the inner side of the outer fixed cylinder (17) is symmetrically slidably connected to two limiting movable slideways (19), one side of the two limiting movable slideways (19) are slidably connected to a guide slide plate (21), the interior of the two guide slide plates (21) are rotatably connected to a rotating rod (22), and the two ends of the two rotating rods (22) are rotatably connected to a soluble bridge plug (20).
2. The low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells according to claim 1, characterized in that: A third slip (11) is provided on the outer side of the second sealing sleeve (10).
3. The low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells according to claim 1, characterized in that: The outer side of the No. 2 closed sleeve (10) is fixedly connected with No. 2 slips (12) at equal intervals.
4. The low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells according to claim 1, characterized in that: The interior of the No. 1 closed sleeve (4) is provided with openings (8) at equal intervals.
5. The low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells according to claim 1, characterized in that: The outer side of the No. 1 sealing sleeve (4) is fixedly connected to a No. 1 slip (9).
6. The low-temperature fully soluble bridge plug for deep coal-rock gas horizontal wells according to claim 1, characterized in that: The outer sides of the two rotating rods (22) are sleeved with a torsion spring (23), one end of the torsion spring (23) is fixedly connected to the guide slide plate (21), and the other end of the torsion spring (23) is fixedly connected to the soluble bridge plug (20).