Compression type packer for oil exploitation

Abstract

The utility model belongs to the technical field of oil exploitation tools, and particularly relates to a compression type packer for oil exploitation, which comprises a compression type packer body, connecting pipes are fixedly arranged at the top and the bottom of the compression type packer body, a first fixing plate and a second fixing plate are fixedly arranged outside the compression type packer body, and the first fixing plate and the second fixing plate are fixedly arranged on the compression type packer body. The first fixing plate and the second fixing plate are connected in a clamped mode, clamping grooves are formed in the outer portions of the first fixing plate and the second fixing plate, two sets of clamping structures are fixedly arranged on the side, close to the first fixing plate, of the second fixing plate, and two sets of inserting grooves are formed in the side, close to the second fixing plate, of the first fixing plate. According to the compression type packer, the clamping groove, the clamping block and the protective sleeve are arranged, the protective sleeve is installed outside the compression type packer when the compression type packer is used, friction between the compression type packer body and the inner wall of a well can be eradicated in the using process, and therefore the service life of the compression type packer is reasonably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of oil extraction tools, in particular to a compression packer for oil extraction. Background Technique

[0002] Oil is a fluid mineral buried deep underground. Initially, people called the oily liquid minerals produced in nature petroleum, the combustible gas natural gas, and the solid combustible oil-based minerals asphalt. With the in-depth study of minerals, it is recognized that they all belong to hydrocarbon compounds in composition and are interrelated in origin. Therefore, they are collectively called petroleum. Oil extraction refers to the act of excavating and extracting oil in places where oil is stored. In the process of oil extraction, the driving mode of oil and gas flowing from the reservoir into the bottom of the well and then rising from the bottom of the well to the wellhead is adopted. An essential tool for extraction is a packer, which refers to a downhole tool connected to the downhole string and used to seal the annular space between the tubing and the casing of the oil and gas well or the open-hole wellbore wall.

[0003] However, the existing packer does not have a protective structure on the outside. When in use, the packer moves downward and rubs against the wellbore wall, thus reducing the service life of the equipment. Therefore, a compression packer for oil extraction is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and to propose a compression packer for oil extraction.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A compression packer for oil extraction, including a compression packer body, connection pipes are fixedly arranged at the top and bottom of the compression packer body, a first fixing plate and a second fixing plate are fixedly arranged outside the compression packer body, the first fixing plate and the second fixing plate are clamped, clamping grooves are arranged outside the first fixing plate and the second fixing plate, two groups of clamping structures are fixedly arranged on one side of the second fixing plate close to the first fixing plate, two groups of slots are arranged on one side of the first fixing plate close to the second fixing plate, an arc-shaped groove is arranged on the inner wall of the top of the slot, a positioning hole is arranged on the inner wall of the arc-shaped groove, and a protective sleeve is movably arranged outside the first fixing plate and the second fixing plate.

[0006] As a further description of the above technical solution:

[0007] Anti-slip pads are fixedly arranged on the surfaces of the first fixing plate and the second fixing plate close to each other, and the anti-slip pads are made of rubber.

[0008] As a further description of the above technical solution:

[0009] Two clamping blocks are fixedly arranged on the inner wall of the protective sleeve, and the two clamping blocks are adapted to the two clamping grooves.

[0010] As a further description of the above technical solution:

[0011] The clamping structure includes a plug board fixedly connected to one side of the second fixing plate. A storage groove is provided at the top of the plug board. A spring is fixedly provided on the inner wall of the bottom of the storage groove. The top of the spring is fixedly provided with a top rod. The top of the top rod is arc-shaped, and the top rod is adapted to the positioning hole.

[0012] As a further description of the above technical solution:

[0013] A guide plate is fixedly provided between the spring and the top rod, and the guide plate is movably connected to the inner wall of the storage groove.

[0014] As a further description of the above technical solution:

[0015] Two baffle plates are fixedly provided at the top of the plug board. The two baffle plates are rectangular, and the two baffle plates are located on both sides of the storage groove.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the prior art, for the compression packer for oil extraction, by setting the clamping groove, the clamping block and the protective sleeve, when using the device, the protective sleeve is installed on the outside of the compression packer, and during use, the friction between the compression packer body and the inner wall of the well can be eliminated, thereby reasonably prolonging the service life of the device.

[0018] 2. Compared with the prior art, for the compression packer for oil extraction, by setting the first fixing plate, the second fixing plate, the plug board, the storage groove, the spring, the guide plate and the top rod, before installing the protective sleeve, the two fixing plates are installed on the outer wall of the compression packer. Components such as the plug board, the arc-shaped groove, the positioning hole and the top rod can realize the rapid installation of the two fixing plates. The setting of the two fixing plates does not require setting a locking structure or opening a positioning groove on the surface of the packer, that is, the rapid positioning of the protective sleeve can be realized, and there will be no situation where the locking structure components protrude and fit with the well wall, resulting in the loosening of the protective sleeve, and moreover, the lossless installation is realized. Description of the Drawings

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a compression packer for oil extraction proposed by the utility model;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the protective sleeve in a compression packer for oil extraction proposed by the utility model;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of a compression packer for oil extraction proposed by the utility model after removing the protective sleeve;

[0022] Figure 4 Schematic diagram of the separation structure of the first fixing plate and the second fixing plate in a compression packer for oil extraction proposed by the present utility model;

[0023] Figure 5 Three-dimensional schematic diagram of the clamping structure in a compression packer for oil extraction proposed by the present utility model;

[0024] Figure 6 Enlarged schematic diagram of part A in a compression packer for oil extraction proposed by the present utility model.

[0025] Legend:

[0026] 1. Compression packer body; 2. Connecting pipe; 3. First fixing plate; 4. Second fixing plate; 5. Card slot; 6. Clamping structure; 601. Insert plate; 602. Storage groove; 603. Spring; 604. Guide plate; 605. Thumb rod; 7. Insert slot; 8. Arc groove; 9. Positioning hole; 10. Anti-slip pad; 11. Protective sleeve; 12. Clamping block. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Refer to Figures 1 to 6, a compression packer for oil extraction provided by the utility model: It includes a compression packer body 1. Connecting pipes 2 are fixedly arranged at both the top and bottom of the compression packer body 1. A first fixing plate 3 and a second fixing plate 4 are fixedly arranged outside the compression packer body 1. The settings of the first fixing plate 3 and the second fixing plate 4 can prevent the protective sleeve 11 from being directly fixed to the equipment body, enabling lossless installation. At the same time, it can effectively prevent the situation where the traditional locking structure components are in contact with the inner wall of the well, resulting in the loosening of the protective sleeve 11. The first fixing plate 3 and the second fixing plate 4 are snap-connected. Card slots 5 are arranged outside both the first fixing plate 3 and the second fixing plate 4. Two groups of clamping structures 6 are fixedly arranged on one side of the second fixing plate 4 close to the first fixing plate 3. Two groups of slots 7 are arranged on one side of the first fixing plate 3 close to the second fixing plate 4. An arc-shaped groove 8 is arranged on the inner wall of the top of the slot 7. A positioning hole 9 is arranged on the inner wall of the arc-shaped groove 8. A same protective sleeve 11 is movably arranged outside the first fixing plate 3 and the second fixing plate 4. Two clamping blocks 12 are fixedly arranged on the inner wall of the protective sleeve 11. The two clamping blocks 12 are adapted to the two card slots 5. The setting of the protective sleeve 11 can prevent the friction between the compression packer body 1 and the inner wall of the well, thereby reasonably extending the service life of the equipment;

[0029] Refer to Figure 4 , for the purpose of enhancing the friction force, anti-slip pads 10 are fixedly arranged on the surfaces of the first fixing plate 3 and the second fixing plate 4 close to each other. The anti-slip pads 10 are made of rubber. The setting of the anti-slip pads 10 can enhance the friction force between the first fixing plate 3 and the second fixing plate 4 and the equipment, preventing the fixing plates from falling off;

[0030] Refer to Figure 5 , for the purpose of quickly splicing the first fixing plate 3 and the second fixing plate 4, the clamping structure 6 includes a plug board 601 fixedly connected to one side of the second fixing plate 4. Two baffles are fixedly arranged at the top of the plug board 601. The two baffles are rectangular. The two baffles are located on both sides of the receiving groove 602. A receiving groove 602 is arranged at the top of the plug board 601. A spring 603 is fixedly arranged on the inner wall of the bottom of the receiving groove 602. A top rod 605 is fixedly arranged at the top of the spring 603. A guide plate 604 is fixedly arranged between the spring 603 and the top rod 605. The guide plate 604 is movably connected to the inner wall of the receiving groove 602. The top of the top rod 605 is arc-shaped. The top rod 605 is adapted to the positioning hole 9. The cooperation of the top rod 605, the arc-shaped groove 8 and the positioning hole 9 can realize the quick installation of the two fixing plates and improve the efficiency.

[0031] Working principle: When in use, first install the two fixing plates outside the compression packer body 1. First, fit the first fixing plate 3 to the outer wall of the compression packer body 1. Then, press down on multiple ejector rods 605 to make them retract into the storage grooves 602. Then, insert the insertion plates 601 into the slots 7. Then, push the second fixing plate 4 towards the first fixing plate 3. The second fixing plate 4 drives multiple insertion plates 601, the insertion plates 601 drive the ejector rods 605, and the tops of the ejector rods 605 move within the arc-shaped grooves 8. When the ejector rods 605 move to the position of the positioning holes 9, the springs 603 push the ejector rods 605 upwards to make them pop out from the positioning holes 9, realizing the assembly of the two fixing plates. At this time, the two fixing plates are fixed to the compression packer body 1. Then, insert the two clamping blocks 12 on the inner wall of the protective sleeve 11 into the clamping grooves 5. Then, press down on the protective sleeve 11. When the clamping blocks 12 are in contact with the bottom inner wall of the clamping grooves 5 and cannot move further, rotate the protective sleeve 11 clockwise. The protective sleeve 11 drives the clamping blocks 12 to move within the clamping grooves 5. When the protective sleeve 11 cannot rotate further, the installation of the protective sleeve 11 is achieved. The setting of the protective sleeve 11 can prevent the friction between the compression packer body 1 and the well inner wall, thereby reasonably extending the service life of the equipment.

[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compression packer for oil extraction, comprising a compression packer body (1), characterized in that: A connecting pipe (2) is fixedly provided at both the top and the bottom of the compression packer body (1). A first fixing plate (3) and a second fixing plate (4) are fixedly provided outside the compression packer body (1). The first fixing plate (3) and the second fixing plate (4) are snap-connected. Slots (5) are provided on the outsides of both the first fixing plate (3) and the second fixing plate (4). Two groups of clamping structures (6) are fixedly provided on one side of the second fixing plate (4) close to the first fixing plate (3). Two groups of slots (7) are provided on one side of the first fixing plate (3) close to the second fixing plate (4). An arc-shaped groove (8) is provided on the inner wall of the top of the slot (7). A positioning hole (9) is provided on the inner wall of the arc-shaped groove (8). A same protective sleeve (11) is movably provided outside the first fixing plate (3) and the second fixing plate (4).

2. The compressible packer for oil extraction according to claim 1, wherein: An anti-slip pad (10) is fixedly provided on each of the surfaces of the first fixing plate (3) and the second fixing plate (4) close to each other. The anti-slip pad (10) is made of rubber.

3. A compression packer for oil extraction according to claim 1, characterized in that: Two clamping blocks (12) are fixedly provided on the inner wall of the protective sleeve (11). The two clamping blocks (12) are adapted to the two slots (5).

4. A compression packer for oil extraction according to claim 1, characterized in that: The clamping structure (6) includes a plug board (601) fixedly connected to one side of the second fixing plate (4). A receiving groove (602) is provided at the top of the plug board (601). A spring (603) is fixedly provided on the inner wall of the bottom of the receiving groove (602). A ejector rod (605) is fixedly provided at the top of the spring (603). The top of the ejector rod (605) is arc-shaped. The ejector rod (605) is adapted to the positioning hole (9).

5. A compression packer for oil extraction according to claim 4, characterized in that: A guide plate (604) is fixedly provided between the spring (603) and the ejector rod (605). The guide plate (604) is movably connected to the inner wall of the receiving groove (602).

6. The compression packer for oil extraction according to claim 4, characterized in that: Two baffle plates are fixedly provided at the top of the plug board (601). The two baffle plates are rectangular. The two baffle plates are located on both sides of the receiving groove (602).

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