Perforating gun bearing sleeve

Abstract

The utility model discloses a perforating gun bearing sleeve, which belongs to the technical field of perforating guns, and comprises a positioning seat and a mounting mechanism, the outer wall of the positioning seat is fixedly connected with a mounting sleeve, a bearing body is embedded in the mounting sleeve, the mounting mechanism comprises a positioning ring, and the positioning ring is fixedly connected between the inner walls of the mounting sleeve. A plurality of limiting grooves are correspondingly formed in the outer wall of the mounting sleeve, a plurality of limiting columns are fixedly connected to the outer wall of the bearing body, a plurality of U-shaped limiting plates are fixedly mounted on the outer wall of one side of the positioning seat through bolts, the positioning seat and the mounting sleeve form a bearing sleeve of the perforating gun, the bearing body is mounted in the mounting sleeve, and one end of the bearing body is conveniently positioned through the positioning ring; the bearing body is convenient to install, the situation of relative rotation of the installed bearing body can be avoided through cooperation of the limiting columns and the corresponding limiting grooves, the installation stability of the bearing body is improved, the limiting columns are conveniently positioned through the U-shaped limiting plates, and the bearing body is conveniently fixed into the installation sleeve.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of perforating gun, more specifically, relate to a perforating gun bearing sleeve. BACKGROUND

[0002] Perforating gun is the special tool combination body used in the well completion or cementing operation, and high-speed jet is generated through the explosive energy effect to penetrate the stratum and form the oil and gas passage. The core structure includes the shell, perforating bullet, detonating cord and matched detonating device, and the perforating gun bearing sleeve is a key component for some special type perforating gun, and is mainly used for supporting the rotating mechanism, reducing the friction and ensuring the accurate orientation of the perforating bullet.

[0003] At present, the installation of the perforating gun bearing mostly adopts the snap ring type bearing sleeve to be clamped or the split type bearing sleeve to clamp the bearing, and the fixing effect of the bearing is not ideal through the installation mode, and the relative rotation of the bearing in the bearing sleeve is caused, and the heat is generated in the rotating process of the supporting rotating structure of the perforating gun, the heat is not discharged in time, the temperature is continuously accumulated, and the use of the perforating gun is affected. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model aims at providing a perforating gun bearing sleeve, which aims at solving the problems in the background art.

[0005] In order to solve the above problems, the utility model adopts the following technical scheme:

[0006] A perforating gun bearing sleeve, comprising:

[0007] A positioning seat, the outer wall of the positioning seat is fixedly connected with a mounting sleeve, and the mounting sleeve is embedded with a bearing body inside;

[0008] An installation mechanism, the installation mechanism comprises a positioning ring, the positioning ring is fixedly connected between the inner walls of the mounting sleeve, a plurality of limiting grooves are formed in the outer wall of the mounting sleeve in correspondence, a plurality of limiting columns are fixedly connected to the outer wall of the bearing body, and a plurality of U-shaped limiting plates are fixedly installed on the outer wall of one side of the positioning seat through bolts.

[0009] As a preferred scheme of the utility model, a plurality of limiting strips are fixedly connected to the outer wall of one side of the positioning ring, and a plurality of limiting grooves are formed in the outer wall of one side of the bearing body in correspondence.

[0010] As a preferred scheme of the utility model, a plurality of fixing plates are fixedly connected to the outer wall of one side of each U-shaped limiting plate.

[0011] As a preferred scheme of the utility model, a ring-shaped extension is fixedly connected to the outer wall of one side of the positioning seat.

[0012] As a preferred scheme of the utility model, a plurality of heat dissipation grooves are equidistantly arranged on the inner wall of the annular extension.

[0013] As a preferred scheme of the utility model, a plurality of positioning holes are arranged on the outer wall of the positioning seat.

[0014] Beneficial effects

[0015] Compared with the prior art, the utility model provides a perforating gun bearing sleeve with the following beneficial effects:

[0016] 1. In the scheme, the positioning seat and the mounting sleeve form the bearing sleeve of the perforating gun, the bearing body is mounted in the mounting sleeve, the positioning ring is used to conveniently position one end of the bearing body, the mounting of the bearing body is facilitated, the relative rotation of the installed bearing body is avoided by the cooperation of the limiting column and the corresponding limiting groove, the mounting stability of the bearing body is improved, the U-shaped limiting plate is used to conveniently position the limiting column, and the bearing body is conveniently fixed in the mounting sleeve.

[0017] 2. In the scheme, the inner diameter of the annular extension of the positioning seat is consistent with the inner diameter of the bearing body, the shaft of the support rotating structure of the perforating gun is conveniently mounted, the heat dissipation grooves on the annular extension are used to conveniently release the heat generated when the support rotating structure works, and the use safety of the perforating gun is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the utility model;

[0019] Figure 2 It is a second perspective view of the utility model;

[0020] Figure 3 It is an explosion view of the utility model.

[0021] Explanation of reference numerals in the drawing:

[0022] 1. Positioning seat; 2. Mounting sleeve; 3. Bearing body; 4. Mounting mechanism; 401. Positioning ring; 402. Limiting groove; 403. Limiting column; 404. U-shaped limiting plate; 405. Limiting strip; 406. Limiting groove; 5. Fixed plate; 6. Annular extension; 7. Heat dissipation groove; 8. Positioning hole. DETAILED DESCRIPTION

[0023] The technical schemes in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Example:

[0025] Please see Figures 1-3 A perforating gun bearing sleeve, comprising:

[0026] Positioning seat 1, with mounting sleeve 2 fixedly connected to its outer wall, and bearing body 3 embedded inside mounting sleeve 2; and

[0027] The mounting mechanism 4 includes a positioning ring 401, which is fixedly connected to the inner wall of the mounting sleeve 2. The outer wall of the mounting sleeve 2 is provided with multiple limiting grooves 402. The outer wall of the bearing body 3 is fixedly connected with multiple limiting posts 403. Multiple U-shaped limiting plates 404 are fixedly installed on one side of the outer wall of the positioning seat 1 by bolts.

[0028] In this embodiment, the positioning seat 1 and the mounting sleeve 2 form the bearing sleeve of the perforating gun. The bearing body 3 is installed inside the mounting sleeve 2. The positioning ring 401 facilitates the positioning of one end of the bearing body 3, making the installation of the bearing body 3 convenient. The limiting post 403 can be fixed to the outer wall of the bearing body 3 by welding. By cooperating with the corresponding limiting groove 402, the relative rotation of the bearing body 3 after installation can be avoided, improving the installation stability of the bearing body 3. The U-shaped limiting plate 404 facilitates the positioning of the limiting post 403, making it convenient to fix the bearing body 3 inside the mounting sleeve 2.

[0029] Please refer to the specific details. Figure 3 As shown, a plurality of limiting strips 405 are fixedly connected to one side of the outer wall of the positioning ring 401, and a plurality of limiting grooves 406 are correspondingly opened on one side of the outer wall of the bearing body 3.

[0030] In this embodiment, the installation stability of the bearing body 3 and the mounting sleeve 2 is further improved by the cooperation of the limiting strip 405 and the corresponding limiting groove 406.

[0031] Please refer to the specific details. Figure 2 As shown, each U-shaped limiting plate 404 has multiple fixing plates 5 fixedly connected to one side of its outer wall.

[0032] In this embodiment, the fixing plate 5 is used to protect one end of the limiting post 403, so as to prevent one end of the limiting post 403 from extending too far outside the U-shaped limiting plate 404 during installation, which would affect the use of the subsequent perforating gun and improve the use effect of the installation mechanism 4.

[0033] Please refer to the specific details. Figure 2 As shown, an annular extension 6 is fixedly connected to one side of the outer wall of the positioning seat 1.

[0034] In this embodiment, the inner diameter of the annular extension 6 on the positioning seat 1 is the same as the inner diameter of the bearing body 3, which facilitates the shaft installation of the perforating gun support rotating structure.

[0035] Specifically, please combine Figure 2 As shown, the inner wall of the annular extension 6 is equidistantly provided with a plurality of heat dissipation grooves 7.

[0036] In this embodiment, the heat dissipation grooves 7 on the annular extension 6 facilitate the release of heat generated during the operation of the support rotating structure, thereby improving the use safety of the perforating gun.

[0037] Specifically, please combine Figure 2 As shown, the outer wall of the positioning seat 1 is provided with a plurality of positioning holes 8.

[0038] In this embodiment, the positioning holes 8 facilitate the installation and fixation of the positioning seat 1.

[0039] Working principle: in use, the positioning seat 1 is fixed to a suitable position on the perforating gun through the positioning holes 8, the bearing body 3 is installed inside the installation sleeve 2, the limiting groove 406 on the bearing body 3 and the limiting strip 405 on the positioning ring 401 are butted, and the limiting columns 403 are all embedded inside the corresponding limiting grooves 402, the U-shaped limiting plates 404 are installed to the outer wall of the positioning seat 1 through screws, and each U-shaped limiting plate 404 is sleeved to the surface of the corresponding limiting column 403, the shaft in the support rotating structure of the perforating gun is installed inside the bearing body 3 and the annular extension 6, and the shaft is cooled through the heat dissipation grooves 7.

[0040] The control mode of the utility model is controlled by manually starting and closing the switch, and the wiring diagram of the power element and the provision of the power supply belong to the public knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the utility model will not explain the control mode and the wiring arrangement in detail.

[0041] The above is only the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the improvement concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A perforating gun bearing sleeve, characterized by, Include: Positioning seat (1), the outer wall of positioning seat (1) is fixedly connected with mounting sleeve (2), bearing body (3) is embedded in the inside of mounting sleeve (2);And Mounting mechanism (4), the mounting mechanism (4) includes positioning ring (401), the inner wall of mounting sleeve (2) is fixedly connected between positioning ring (401), the outer wall of mounting sleeve (2) is correspondingly provided with a plurality of limiting grooves (402), the outer wall of bearing body (3) is fixedly connected with a plurality of limiting columns (403), the outer wall of positioning seat (1) one side is fixedly installed with a plurality of U-shaped limiting plates (404) through bolt.

2. A perforating gun bearing sleeve as defined in claim 1, wherein, The outer wall of the positioning ring (401) one side is fixedly connected with a plurality of limiting strips (405), and the outer wall of the bearing body (3) one side is correspondingly provided with a plurality of limiting grooves (406).

3. A perforating gun bearing sleeve as defined in claim 2, wherein, The outer wall of each U-shaped limiting plate (404) one side is fixedly connected with a plurality of fixed plates (5).

4. A perforating gun bearing sleeve as defined in claim 3, wherein, The outer wall of the positioning seat (1) one side is fixedly connected with annular extension (6).

5. A perforating gun bearing sleeve as defined in claim 4, wherein, A plurality of heat dissipation grooves (7) are equidistantly formed in the inner wall of the annular extension (6).

6. A perforating gun bearing sleeve as defined in claim 5, wherein, The outer wall of the positioning seat (1) is provided with a plurality of positioning holes (8).

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