Multifunctional compression type packer
By slewing the protective cover and setting a buffer layer on the outside of the compressed packer body, the problem of friction damage in the packer in the oil well is solved, achieving higher durability and lower maintenance costs.
Patent Information
- Application Number
- CN202421539125.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The existing compression packers are prone to friction with the inner wall of the oil well when they move up and down in the oil well, resulting in damage to the packer and reducing service life.
A multifunctional compression packer is designed. By slewing a protective cover on the outside of the packer main body, and setting a buffer layer on the bottom of the protective cover and the inside of the locking cover, the locking cover is threaded to ensure a stable connection between the device.
Effectively prevent wear of the sealer body surface, reduce maintenance and replacement frequency, reduce costs and improve durability.
Smart Images
Figure CN222615305U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil field downhole, in particular to a multifunctional compression packer. Background Art
[0002] In the middle and late stages of oil field development, oil well production drops seriously. In order to stabilize oil well production, fracturing and other measures are generally used to increase crude oil production. The compression packer used in fracturing plays an important role in the effect of fracturing.
[0003] Since the packer is used in the oil well, the outer surface of the packer is likely to rub against the inner wall of the oil well during the up and down movement of the packer, which may cause damage to the packer after long-term use, thereby reducing the service life of the packer. Therefore, a multifunctional compression packer is proposed to solve the above technical problems. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a multifunctional compression packer, which solves the problem that the outer surface of the packer is easily rubbed against the inner wall of the oil well during the up and down movement of the packer, causing the packer to be easily damaged after long-term use.
[0005] To achieve the above object, the utility model provides the following technical solutions: a multifunctional compression packer, comprising a packer body, wherein both upper and lower ends of the packer body protrude from the inside to the outside to form a protrusion;
[0006] A protective cover is sleeved on the outer side of the packer body, a bearing portion is provided at the bottom of the protective cover, and the bearing portion is attached to the outer side of the lower protrusion;
[0007] A locking cover with one end threadedly connected to the protective cover is sleeved on the outer side of the protruding part on the upper side.
[0008] Furthermore, a first buffer layer is provided on the inner sides of the locking cover and the bearing portion;
[0009] A second buffer layer that fits the packer body is installed on the inner side of the protective cover.
[0010] Furthermore, the first buffer layer is attached to the outer side of the protrusion.
[0011] Furthermore, the second buffer layer and the first buffer layer are both elastic rubber layers.
[0012] Furthermore, a plurality of guide grooves are vertically provided on the outer side of the protective cover.
[0013] Furthermore, the plurality of guide grooves are distributed in a circular array on the outside of the protective cover.
[0014] Furthermore, the inner diameters of the bearing portion and the locking cover are respectively matched with the outer diameters of the two protruding portions.
[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0016] The multifunctional compression packer can effectively prevent the surface of the packer body from being worn when it moves up and down in the oil well by means of a protective cover sleeved on the outside of the packer body. At the same time, the threaded locking cover can ensure that the device is firmly connected during use and is not easy to fall off or loosen, which can effectively reduce the maintenance and replacement frequency of the packer body, reduce costs, and improve the durability of the packer body. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the utility model;
[0018] Figure 2 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;
[0019] Figure 3 It is a schematic diagram of the overall structure of the utility model.
[0020] In the figure: 1. Packer body; 2. Protrusion; 3. Protective cover; 4. Bearing part; 5. Guide groove; 6. Locking cover; 7. First buffer layer; 8. Second buffer layer. DETAILED DESCRIPTION
[0021] 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.
[0022] See also Figure 1-3 A multifunctional compression packer in this embodiment is used to protect the packer body 1 to prevent the outer surface of the packer body 1 from being worn when the packer body 1 moves up and down in the oil well.
[0023] Specifically, it includes a packer body 1, the upper and lower ends of which protrude from the inside to the outside to form a protrusion 2; a protective cover 3 is sleeved on the outer side of the packer body 1, and a bearing part 4 is provided at the bottom of the protective cover 3, and the bearing part 4 is attached to the outer side of the lower protrusion 2; a locking cover 6 is sleeved on the outer side of the upper protrusion 2, one end of which is threadedly connected to the protective cover 3.
[0024] In actual settings, a protective cover 3 is sleeved on the outside of the packer body 1 to effectively prevent the surface of the packer body 1 from being worn when moving up and down in the oil well. At the same time, the threaded locking cover 6 can ensure that the device is firmly connected during use and is not easy to fall off or loosen, which can effectively reduce the maintenance and replacement frequency of the packer body 1, reduce costs, and improve the durability of the packer body 1.
[0025] Furthermore, in order to ensure that the locking cover 6 and the bearing part 4 can effectively fit with the two protrusions 2, a first buffer layer 7 is provided on the inner side of the locking cover 6 and the bearing part 4 in this embodiment; a second buffer layer 8 fitting with the seal body 1 is installed on the inner side of the protective cover 3, and the inner diameters of the bearing part 4 and the locking cover 6 are respectively adapted to the outer diameters of the two protrusions 2.
[0026] In actual configuration, the first buffer layer 7 is attached to the outer side of the protruding portion 2 , and the second buffer layer 8 and the first buffer layer 7 are both elastic rubber layers.
[0027] During actual use, when tightening the locking cover 6, the locking cover 6 and the bearing part 4 move toward each other at the same time, and the locking cover 6 and the bearing part 4 squeeze the first buffer layer 7 and the second buffer layer 8 during the process of moving toward each other, so that the first buffer layer 7 and the second buffer layer 8 are effectively attached to the outer sides of the two protrusions 2.
[0028] Furthermore, in order to ensure the stability of the packer body 1 during the up and down movement, a plurality of guide grooves 5 are vertically opened on the outer side of the protective cover 3, and the plurality of guide grooves 5 are distributed in an annular array on the outer side of the protective cover 3.
[0029] In actual settings, the guide groove 5 can guide the surrounding airflow to form an airflow layer on the surface of the protective cover 3, reducing the direct impact of the airflow on the surface of the packer body 1, reducing the impact force of the airflow on the packer body 1, thereby improving the stability of the packer body 1 during the up and down movement.
[0030] To sum up, the multifunctional compression packer can effectively prevent the surface of the packer body 1 from being worn when it moves up and down in the oil well by means of the protective cover 3 sleeved on the outside of the packer body 1. At the same time, the threaded locking cover 6 can ensure that the device is firmly connected during use and is not easy to fall off or loosen, which can effectively reduce the maintenance and replacement frequency of the packer body 1, reduce the cost, and improve the durability of the packer body 1. By tightening the locking cover 6, the locking cover 6 and the bearing part 4 move in opposite directions at the same time, and the locking cover 6 and the bearing part 4 squeeze the first buffer layer 7 and the second buffer layer 8 during the process of moving in opposite directions, so that the first buffer layer 7 and the second buffer layer 8 are effectively fitted to the outside of the two protrusions 2.
[0031] 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 multifunctional compression packer, comprising a packer body (1), characterized in that: The upper and lower ends of the packer body (1) both protrude from the inside to the outside to form a protrusion (2); A protective cover (3) is sleeved on the outer side of the packer body (1), a bearing portion (4) is provided at the bottom of the protective cover (3), and the bearing portion (4) is attached to the outer side of the lower protruding portion (2); A locking cover (6) is sleeved on the outer side of the upper protruding portion (2) and has one end threadedly connected to the protective cover (3).
2. A multifunctional compression packer according to claim 1, characterized in that: A first buffer layer (7) is provided on the inner sides of the locking cover (6) and the bearing portion (4); A second buffer layer (8) that fits the packer body (1) is installed on the inner side of the protective cover (3).
3. A multifunctional compression packer according to claim 2, characterized in that: The first buffer layer (7) is attached to the outer side of the protruding portion (2).
4. A multifunctional compression packer according to claim 2, characterized in that: The second buffer layer (8) and the first buffer layer (7) are both elastic rubber layers.
5. The multifunctional compression packer according to claim 1, characterized in that: A plurality of guide grooves (5) are vertically provided on the outer side of the protective cover (3).
6. A multifunctional compression packer according to claim 5, characterized in that: The plurality of guide grooves (5) are distributed in an annular array on the outside of the protective cover (3).
7. A multifunctional compression packer according to claim 1, characterized in that: The inner diameters of the bearing portion (4) and the locking cover (6) are respectively matched to the outer diameters of the two protruding portions (2).