CN220267655U

CN220267655U - Combined annular blowout preventer convenient to disassemble, assemble and overhaul

Info

Publication number: CN220267655U
Application number: CN202322073844.6U
Authority: CN
Inventors: 符春红; 王荣兵; 王珲; 刘华; 王子杰
Original assignee: Jiangsu Sanyi Petroleum Equipment Co ltd
Current assignee: Jiangsu Sanyi Petroleum Equipment Co ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2023-12-29
Anticipated expiration: 2033-08-03

Abstract

The utility model discloses a combined annular blowout preventer convenient to disassemble, assemble and overhaul, which comprises a shell, a piston, a sleeve, a rubber core, a top cover, a cover body, a floating ring and a rotary locking mechanism, wherein the piston is arranged in the shell, the upper end and the lower end of the sleeve are respectively connected with the piston and the rubber core, the top cover is positioned above the shell, a plurality of groups of fixing bolts are uniformly arranged on the periphery of the top cover, the plurality of groups of fixing bolts are distributed in a shape, a plurality of groups of bolt holes are uniformly formed in the top of the shell in an annular shape, the fixing bolts are threaded and inserted into the bolt holes, the middle of the top cover is provided with a mounting opening, the mounting opening is internally threaded and provided with the cover body, the floating ring is fixed at the upper end of the sleeve and the upper end of the floating ring is contacted with the bottom of the rubber core, a plurality of groups of notches are uniformly formed in the annular groove, the notches are communicated with the annular groove, and the rotary locking mechanism is arranged on the top cover. The annular blowout preventer designed by the utility model is convenient to disassemble and is convenient for workers to replace and maintain quickly.

Description

Combined annular blowout preventer convenient to disassemble, assemble and overhaul

Technical Field

The utility model relates to the technical field of annular blowout preventers, in particular to a combined annular blowout preventer convenient to disassemble, assemble and overhaul.

Background

Annular blowout preventers are typically fitted with large gates of ram-type blowout preventers that, when operated, create a sealed annular space between the tubular string and the wellbore, and can be used alone without the tubular string in the well, but are not used several times and do not allow for long term well shut-in.

However, existing annular blowout preventers have the following problems during use: in order to guarantee the tightness and the strength of the annular blowout preventer, the annular blowout preventer is generally designed into a structure with stronger integrity and is fixed at the joint through a plurality of groups of bolts, however, as the rubber installed on the inner side surface of the annular blowout preventer needs to be replaced frequently, the top cover of the annular blowout preventer is heavy, the top cover is detached and then taken down when the device is maintained and replaced each time, the rubber core is in a built-in design mode, the labor intensity of a conventional disassembly mode is high, the replacement and maintenance efficiency is low, and a means for quickly replacing the rubber in the annular blowout preventer is lacked. For this purpose, a corresponding technical solution is required to be designed to solve the existing technical problems.

Disclosure of Invention

The utility model aims to provide a combined annular blowout preventer convenient to disassemble, assemble and overhaul, which solves the technical problems that in order to ensure the tightness and strength of the annular blowout preventer, the annular blowout preventer is generally designed into a structure with stronger integrity and fixed at the joint through a plurality of groups of bolts, however, rubber arranged on the inner side surface of the annular blowout preventer needs to be replaced frequently, the top cover of the annular blowout preventer is heavy, the top cover is detached after being detached when the device is maintained and replaced each time, the rubber core is in a built-in design mode, the labor intensity of the conventional disassembly mode is high, the replacement and maintenance efficiency is low, and a means for quickly replacing the rubber in the annular blowout preventer is lacked.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a combination formula annular preventer convenient to dismouting overhauls, includes casing, piston, sleeve, rubber core, top cap, the cover body, floating ring and rotary locking mechanism, the piston embeds in the casing, both ends are connected in piston and rubber core respectively about the sleeve, the top cap is located the top of casing and the periphery evenly installs a plurality of groups fixing bolt, and a plurality of groups fixing bolt is the form and distributes, the top of casing is the annular evenly and has seted up a plurality of groups bolt hole, fixing bolt thread interlude in the bolt hole, the installing port has been seted up at the middle part of top cap, the cover body is installed to the internal thread of installing port, the floating ring is fixed in telescopic upper end and contacts with the bottom of rubber core, the ring channel has been seted up on the top cap, evenly seted up a plurality of groups notch in the ring channel, the notch is linked together with the ring channel, rotary locking mechanism installs on the top cap, rotary locking mechanism includes ring body, connecting rod, inner ring, briquetting and locker, the ring body rotates and sets up in the ring channel and is connected through a plurality of groups connecting rod and inner ring, the inner ring interlude, the connecting rod is equipped with in the notch is located in the inner end and is equipped with in the lifter, the inside is located in the inner end of the telescopic link, the pressure-type ball is equipped with the inside is located down in the telescopic link, and is equipped with the pressure-sensitive ball, and is formed by the taper rod, the pressure-sensitive ball.

As a preferable mode of the utility model, the top cover is welded with a fixed ring, the fixed ring is positioned below the annular groove, and two groups of positioning blocks are symmetrically arranged at the edge of the fixed ring.

As a preferable mode of the utility model, two groups of protruding blocks are symmetrically arranged on the periphery of the ring body, positioning bolts are inserted in the protruding blocks in a threaded mode, and the lower ends of the positioning bolts are in contact with the positioning blocks.

As a preferable mode of the utility model, a plurality of groups of spherical limit grooves are formed on the surface of the rubber core, and the spherical limit grooves are arranged corresponding to the limit balls.

As a preferable mode of the utility model, the pressing block is of a slope structure, one end of the pressing block is higher than the other end of the pressing block in thickness, and the pressing block is contacted with the top of the pressure-bearing rod.

Compared with the prior art, the utility model has the following beneficial effects:

1. this scheme has optimized the structure of current annular preventer, is equipped with rotation type locking mechanism on the top cap, can carry out locking processing through rotation type locking mechanism to inboard gluey core under the conventional state, when need dismantle the gluey core, the staff can open the cover body on the top cap, and rotation type locking mechanism unlocks gluey core, and gluey core can come up voluntarily this moment, can carry out swift change processing to gluey core under the not condition of dismantling of annular preventer.

2. The annular blowout preventer designed by the scheme is convenient to detach, and is convenient for a worker to carry out quick replacement maintenance treatment.

Drawings

FIG. 1 is a schematic view of the overall resolution of the present utility model;

FIG. 2 is a diagram showing the position of the rotary locking mechanism according to the present utility model;

FIG. 3 is a bottom view of the inner ring of the present utility model;

fig. 4 is a structural view of the locker of the present utility model.

In the figure, 1, a shell; 2. a piston; 3. a sleeve; 4. a rubber core; 5. a top cover; 6. a cover body; 7. a floating ring; 8. a fixing bolt; 9. bolt holes; 10. a mounting port; 11. a positioning bolt; 12. an annular groove; 13. a notch; 14. a ring body; 15. a connecting rod; 16. an inner ring; 17. briquetting; 18. a locker; 19. a diagonal rod; 20. a limit ball; 21. a pressure-bearing rod; 22. a fixing ring; 23. a positioning block; 24. a bump; 25. spherical limit groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a combination formula annular preventer convenient to dismouting overhauls, which comprises a housin 1, piston 2, sleeve 3, the rubber core 4, top cap 5, the cover body 6, floating ring 7 and rotary locking mechanism, piston 2 embeds in casing 1, both ends are connected in piston 2 and rubber core 4 respectively about sleeve 3, top cap 5 is located the top of casing 1 and the peripheral evenly install a plurality of groups fixing bolt 8, a plurality of groups fixing bolt 8 are the form and distribute, the top of casing 1 is the annular evenly offer a plurality of groups bolt hole 9, fixing bolt 8 screw thread alternates in bolt hole 9, installing port 10 has been seted up at the middle part of top cap 5, install cover body 6 in the internal screw thread of installing port 10, floating ring 7 is fixed in the upper end of sleeve 3 and upper end and contacts with the bottom of rubber core 4, floating ring 7 adopts the rubber material and be range upon range of form structure, annular groove 12 has been seted up on the top cap 5, notch 13 and annular groove 12 are linked together, rotary locking mechanism installs in top cap 5, rotary locking mechanism includes ring 14, connecting rod 15, inner ring 16, briquetting 17 and 18 have been set up in annular groove 16, briquetting 18, 13 and 13 are equipped with in the 13 and 13 sets of 13 and 13 are equipped with 13 to the 13 and are equipped with 13 to the 13 in the 13 sets of 13, 19 and 13 and are equipped with 13 and 19 and 13 are equipped with 13 to the 13 and 19 in the 13 and 13 are equipped with the 13.

Further refinedly, as shown in fig. 1 and 2: the top cover 5 is welded with a fixed ring 22, the fixed ring 22 is positioned below the annular groove 12, and two groups of positioning blocks 23 are symmetrically arranged at the edge of the fixed ring 22 and used for limiting and locking the ring body 14.

Further improved, as shown in fig. 1: two groups of protruding blocks 24 are symmetrically arranged on the periphery of the ring body 14, positioning bolts 11 are inserted on the protruding blocks 24 in a threaded manner, the lower ends of the positioning bolts 11 are abutted against the positioning blocks 23, and the purpose of positioning the ring body 14 can be achieved by screwing down the positioning bolts 11 and abutting against the protruding blocks 24.

Further improved, as shown in fig. 1: a plurality of groups of spherical limit grooves 25 are formed in the surface of the rubber core 4, the upper end depth of each spherical limit groove 25 is smaller than the lower end depth, separation is facilitated, the spherical limit grooves 25 and the limit balls 20 are correspondingly arranged, and locking and fixing are facilitated by matching the limit balls 20.

Specifically, the briquetting 17 is slope structure and one end highly is greater than other end thickness, and briquetting 17 contacts with the top of pressure-bearing pole 21, and this kind of design mode can be at the in-process that briquetting 17 removed the height of pressure-bearing pole 21 to drive spacing ball 20 and float from top to bottom, can reach the purpose of locking and unblanking to the rubber core 4 of below.

When in use: when the rubber core 4 in the utility model needs to be replaced, a worker firstly rotates and disassembles the cover body 6 at the top, unscrews the positioning bolt 11 and holds the lug 24 to rotate the ring body 14, drives the inner ring 16 to rotate in the rotating process so that the contact part of the pressing block 17 and the pressure-bearing rod 21 is transferred from the thicker end of the pressing block 17 to the thinner end, and pushes the rubber core 4 upwards under the action of the floating ring 7 so that the limiting ball 20 is separated from the spherical limiting groove 25 and floats to the mounting port 10, at the moment, the worker can take out and replace the rubber core 4, re-press the rubber core into the shell 1 and lock the rubber core, thereby achieving the aim of quickly replacing the rubber core 4, and quickly replacing and overhauling the rubber core on the basis of not disassembling the shell 1.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A combination type annular blowout preventer convenient to dismouting overhauls, its characterized in that: including casing (1), piston (2), sleeve (3), rubber core (4), top cap (5), cover (6), floating ring (7) and rotation type locking mechanism, in casing (1) was put in to piston (2), both ends are connected in piston (2) and rubber core (4) respectively about sleeve (3), top cap (5) are located the top of casing (1) and peripheral evenly install a plurality of groups fixing bolt (8), a plurality of groups fixing bolt (8) are the form and distribute, a plurality of groups bolt hole (9) have been evenly seted up to the top of casing (1) to be the ring-shaped, fixing bolt (8) screw thread alternates in bolt hole (9), installing port (10) have been seted up at the middle part of top cap (5), installing port (10) internal thread installs cover (6), floating ring (7) are fixed in the upper end of sleeve (3) and upper end and the bottom of rubber core (4) are contacted, annular groove (12) have been seted up on top cap (5), evenly be equipped with in top cap (12) notch (13), annular groove (13) are evenly set up in annular groove (13), annular groove (13) are connected with rotation type locking mechanism (14), ring body (13) are connected in rotation type locking mechanism, annular groove (13) The inner ring (16), briquetting (17) and locker (18), ring body (14) rotate set up in ring channel (12) and the inboard is connected with inner ring (16) through a plurality of groups connecting rod (15), connecting rod (15) alternate in notch (13), on top cap (5) are inside in inner ring (16), briquetting (17) divide to be equipped with a plurality of groups and machine-shaping in the below of inner ring (16), locker (18) divide to be equipped with a plurality of groups, locker (18) are by diagonal (19), spacing ball (20) and pressure-bearing rod (21) are constituteed, the inner of diagonal (19) is through hinge swing joint with the lower edge of notch (13), spacing ball (20) are fixed in the outer end of diagonal (19), pressure-bearing rod (21) are fixed in the top of diagonal (19) and cooperate briquetting (17) to use.

2. The modular annular blowout preventer convenient to assemble and disassemble for service of claim 1, wherein: the top cover (5) is welded with a fixed ring (22), and the fixed ring (22) is positioned below the annular groove (12) and two groups of positioning blocks (23) are symmetrically arranged at the edge of the fixed ring.

3. The modular annular blowout preventer convenient to disassemble and assemble for service of claim 2, wherein: two groups of protruding blocks (24) are symmetrically arranged on the periphery of the ring body (14), positioning bolts (11) are inserted in the protruding blocks (24) in a threaded mode, and the lower ends of the positioning bolts (11) are abutted to the positioning blocks (23).

4. The modular annular blowout preventer convenient to assemble and disassemble for service of claim 1, wherein: the surface of the rubber core (4) is provided with a plurality of groups of spherical limit grooves (25), and the spherical limit grooves (25) are arranged corresponding to the limit balls (20).

5. The modular annular blowout preventer convenient to assemble and disassemble for service of claim 1, wherein: the pressing block (17) is of a slope structure, one end of the pressing block is higher than the other end of the pressing block in thickness, and the pressing block (17) is in contact with the top of the pressure-bearing rod (21).