CN212406668U

CN212406668U - Combined type anchoring slip

Info

Publication number: CN212406668U
Application number: CN202021874314.1U
Authority: CN
Inventors: 王传鸿; 汪建; 邹刚; 周歆; 李应虎; 李雄
Original assignee: SJS Ltd
Current assignee: SJS Ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-01-26
Anticipated expiration: 2030-09-01

Abstract

The utility model provides a combined type anchoring slips, including slips body, slips tooth piece and mounting, slips tooth piece inlays and locates on the slips body, form cascaded anchoring teeth on the slips tooth piece, the mounting passes slips body and slips tooth piece and is fixed with slips body and slips tooth piece. Because the anchor teeth are formed on the slip tooth block, the slip tooth block can bear high load capacity under the condition of high-pressure load, and has a simple integral structure and easy deblocking and recovery.

Description

Combined type anchoring slip

[ technical field ] A method for producing a semiconductor device

The utility model relates to a downhole tool technical field especially relates to a combined type anchoring slips.

[ background of the invention ]

Currently, with the deepening of each large oil field well and the exploration and development of deep oil and gas wells, the characteristics of complex geological conditions, high bottom pressure and the like exist.

In the production process, after the packer is put in place along with a well completion string, a ball is thrown or a plug is put in to plug the channel of the oil pipe and the annulus. When the packer is set, the packer is pressed from an oil pipe, and fluid enters a hydraulic cylinder through a pressure transfer hole of a mandrel of the packer; under the action of hydraulic pressure, a setting shear pin on a packer piston is firstly sheared, so that the piston pushes an upper cone body downwards to enable the distance between the upper cone body and a lower cone body to be gradually reduced, and the upper end and the lower end of a slip are outwards opened to enable the slip to be anchored on the pipe wall of a sleeve. When the packer is unpacked, the upper cone and the lower cone reset, and the upper end and the lower end of the slip rebound and shrink and are separated from the pipe wall.

However, most packer slips suffer from the following drawbacks: because of differences in material properties and the use environment, the slips are often not fully anchored to the wall of the casing, and thus the slips do not function to secure the packer to the casing. At present, the requirement of an oil-water well on the service performance of a packer is higher and higher, how to improve an anchoring mechanism to bear the load formed by underground higher pressure is a problem to be solved urgently, but the existing well completion tool cannot meet the underground construction operation of high-pressure load.

Accordingly, there is a need to provide a new composite anchoring slip that overcomes the above-mentioned deficiencies.

[ Utility model ] content

The utility model aims at providing a combined type anchoring slips can have under the condition of high pressure load and hold high load capacity to overall structure is simple, and easily the deblocking is retrieved.

In order to realize the above-mentioned purpose, the utility model provides a combined type anchoring slips, including slips body 1, slips tooth piece 2 and mounting 3, slips tooth piece 2 inlays and locates on slips body 1, form cascaded anchoring teeth 21 on slips tooth piece 2, mounting 3 passes slips body 1 and slips tooth piece 2 and is fixed with slips body 1 and slips tooth piece 2.

Preferably, the slip body 1 comprises a main body part 11 and a branch part 12 which is connected with the main body part 11 and is in an I shape; the main body 11 has a triangular cross section, two sides of the main body 11 form an included angle of 60 degrees, and one end of the main body 11, which is far away from the branch 12, forms a slope.

Preferably, a groove 13 is formed in the top surface of the slip body 1, the groove 13 is formed in the main body portion 11, a plurality of threaded holes 131 are formed in the groove 13, and the plurality of threaded holes 131 are linearly distributed.

Preferably, a plurality of counter bores 22 are arranged on the slip tooth block 2, and the counter bores 22 are linearly distributed; the number of the fixing pieces 3 is several, and the fixing pieces 3 correspondingly penetrate through the counterbores 22 and the threaded holes 131.

Preferably, the upper end surface of the slip tooth block 2 is an arc surface, and the upper end surface of the slip tooth block 2 forms a stepped anchoring tooth 21.

Preferably, the slip tooth block 2 is embedded in the groove 13, and the anchoring teeth 21 of the slip tooth block 2 are arranged upwards.

Preferably, the anchor teeth 21 are formed with an included angle θ, and the included angle θ is 45 °.

Preferably, the fixing member 3 is provided with an external thread.

Preferably, the slip body 1 is made of alloy steel material, and the fixing member 3 is a hexagon socket countersunk head screw.

Compared with the prior art, the utility model provides a pair of combined type anchoring slips, beneficial effect lies in because be formed with the anchoring tooth on the slips tooth piece, can have under the condition of high-pressure load and bear high load capacity to overall structure is simple, and easily the deblocking is retrieved.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a perspective view of the composite anchoring slip provided by the present invention.

FIG. 2 is a perspective view of a slip tooth block of the composite anchoring slip of FIG. 1.

FIG. 3 is a side view of the slip tooth block shown in FIG. 2.

Figure 4 is a perspective view of the slip body of the composite anchoring slip of figure 1.

FIG. 5 is a perspective view of a securing member of the composite anchoring slip of FIG. 1.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The above terms may have the specific meanings given in the present invention to those skilled in the art according to the specific circumstances.

Furthermore, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature. Further, the meaning of "a plurality" or "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 5, the present invention provides a composite anchoring slip, which includes a slip body 1, a slip tooth block 2 and a fixing member 3, wherein the slip tooth block 2 is embedded on the slip body 1, and the fixing member 3 passes through the slip body 1 and the slip tooth block 2 to fix the slip body 1 and the slip tooth block 2. In the present embodiment, the slip body 1 is made of alloy steel material, and the fixing member 3 is a socket head cap screw.

Further, the slip body 1 comprises a main body part 11 and a branch part 12 which is connected with the main body part 11 and is in an I shape; the main body 11 has a triangular cross section, two sides of the main body 11 form an included angle of 60 degrees, and one end of the main body 11, which is far away from the branch 12, forms a slope.

Further, a groove 13 is formed in the top surface of the slip body 1, the groove 13 is formed in the main body portion 11, a plurality of threaded holes 131 are formed in the groove 13, and the plurality of threaded holes 131 are linearly distributed. In the present embodiment, the number of the screw holes 131 is two.

Furthermore, the upper end face of the slip tooth block 2 is an arc face, and stepped anchoring teeth 21 are formed on the upper end face of the slip tooth block 2, so that the high-strength anchoring performance is achieved. Specifically, an included angle θ is formed on the anchoring tooth 21, and the included angle θ is 45 °. So, owing to have anchor tooth 21, can be so that slips tooth piece 2 when using with the packer cooperation, easily centrum and the release pressure that slides of intraductal wall of casing, and then make slips tooth piece 2 have and bear high load capacity, and because combined type anchor slips overall structure is simple, easily the deblocking is retrieved.

Further, a plurality of counter bores 22 corresponding to the threaded holes 131 are arranged on the slip tooth block 2, and the counter bores 22 are linearly distributed; the number of the fixing pieces 3 is several, and the fixing pieces 3 correspondingly penetrate through the counterbores 22 and the threaded holes 131. In the present embodiment, the number of the plurality of fixing members 3 is two, and the number of the plurality of counterbores 22 is two.

Further, the slip tooth block 2 is embedded in the groove 13, and the anchoring teeth 21 of the slip tooth block 2 are arranged upwards.

Further, the fixing member 3 is provided with external threads corresponding to the plurality of threaded holes 131.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a combined type anchoring slips, its characterized in that includes slips body (1), slips tooth piece (2) and mounting (3), slips tooth piece (2) inlay is located on slips body (1), form cascaded anchoring tooth (21) on slips tooth piece (2), mounting (3) pass slips body (1) and slips tooth piece (2) with slips body (1) and slips tooth piece (2) fixed.

2. The composite anchoring slip of claim 1, wherein the slip body (1) comprises a main body portion (11) and branch portions (12) connected to the main body portion (11) and having an "i" shape; the section of the main body part (11) is triangular, an included angle of 60 degrees is formed on two side edges of the main body part (11), and a slope is formed at one end, far away from the branch part (12), of the main body part (11).

3. The composite anchoring slip of claim 2, wherein the top surface of the slip body (1) is formed with a groove (13), the groove (13) is formed in the main body (11), and the groove (13) is formed with a plurality of threaded holes (131), and the plurality of threaded holes (131) are linearly distributed.

4. The composite anchoring slip of claim 3, wherein the slip segments (2) are provided with a plurality of counter bores (22), and the plurality of counter bores (22) are linearly distributed; the number of the fixing pieces (3) is a plurality, and the fixing pieces (3) correspondingly penetrate through the counter bores (22) and the threaded holes (131).

5. A composite anchoring slip according to claim 3, characterised in that the upper end surface of the slip segments (2) is cambered and the upper end surface of the slip segments (2) forms a stepped anchoring tooth (21).

6. The composite anchoring slip of claim 5, wherein the slip tooth block (2) is embedded in the groove (13) and the anchoring teeth (21) of the slip tooth block (2) are disposed upward.

7. The composite anchoring slip of claim 6, wherein the anchoring teeth (21) are formed with an included angle θ, wherein the included angle θ is 45 °.

8. The composite anchoring slip of claim 1, characterized in that the fixing element (3) is provided with an external thread.

9. The composite anchoring slip of claim 1, wherein the slip body (1) is made of an alloy steel material and the fixing member (3) is a socket head cap screw.