CN216617470U

CN216617470U - Packer(s)

Info

Publication number: CN216617470U
Application number: CN202123050735.XU
Authority: CN
Inventors: 朱正春
Original assignee: Yancheng Xiangshun Valve Industry Co ltd
Current assignee: Yancheng Xiangshun Valve Industry Co ltd
Priority date: 2021-12-07
Filing date: 2021-12-07
Publication date: 2022-05-27
Anticipated expiration: 2031-12-07

Abstract

The utility model relates to the technical field of oilfield well descending, in particular to a packer, which comprises: a packer, the packer comprising: the packer is sleeved on the outer surface of the pipe body; the connecting assembly is arranged inside the protective washer body and comprises a connecting rod; the sliding assembly is arranged inside the connecting rod and comprises a first return spring; the beneficial effects are that: according to the packer provided by the utility model, the connecting assembly and the protection washer are arranged, and the connecting assembly and the elastic protection washer can be arranged on two sides of the rubber cylinder through deformation of the rubber cylinder, so that the pulling and buffering effects on the materials and the impact force at the upper end and the lower end of the rubber cylinder are effectively realized, the damage to the rubber cylinder is avoided, and the protection effect is improved.

Description

Packer(s)

Technical Field

The utility model relates to the technical field of oil field well descending, in particular to a packer.

Background

The packer is an oil field downhole sealing tool, plays a role in sealing the annular space between an oil pipe and a casing pipe, is an indispensable downhole tool in oil field operations such as oil extraction, fracturing, acidification, water injection and the like, and the conventional packer generally adopts a hydraulic drive mode to promote a power part to generate compression force to axially move and compress a rubber sleeve so as to radially expand the rubber sleeve to achieve the purpose of sealing the annular space of an oil sleeve, or adopts a mechanical motion mode to press the rubber sleeve to expand to achieve the purpose of sealing the oil sleeve. After the rubber sleeve seals the oil sleeve annulus, high pressure caused by underground stratum or operations such as fracturing, acidizing and the like is born, when the underground pressure exceeds the pressure bearing limit of rubber, the rubber sleeve is easy to damage, so that sealing failure is caused, and the underground operation is failed

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to provide a packer to solve the problems set forth in the background art described above.

In order to achieve the purpose, the utility model provides the following technical scheme: a packer, the packer comprising: the packer is sleeved on the outer surface of the pipe body, the packer is sleeved at the central symmetrical position of the pipe body, the surface of the pipe body is sleeved with the sealing rings, the sealing rings are located at the joint of the pipe body and the packer, two groups of sealing rings are arranged, and the two groups of sealing rings are vertically and symmetrically distributed by taking the packer as the center;

the connecting assembly is arranged inside the protective washer and comprises two connecting rods, the connecting rods are hinged inside sinking grooves formed in the packer through a hinged base, the sinking grooves are formed in side walls, located on the upper side and the lower side of the rubber cylinder, of the packer, the sinking grooves are arranged in two groups, the two groups of sinking grooves are distributed in a vertically symmetrical mode by taking the rubber cylinder as the center, each group of packer is provided with a plurality of sinking grooves, the sinking grooves are distributed in an annular and uniform and symmetrical mode by taking the packer as the center, one end, far away from the hinged base, of each connecting rod is connected with a fixed block through the hinged base which is connected in the connecting rod in a sliding mode, the two connecting rods are arranged, and the two connecting rods are distributed in a vertically symmetrical mode by taking the fixed block as the center;

the sliding assembly is arranged in the connecting rod and comprises a first reset spring, the first reset spring is fixedly arranged at the bottom of a groove formed in the connecting rod, the bottom end, away from the groove, of the first reset spring is connected with a fixed rod, one end, away from the first reset spring, of the fixed rod is connected to the bottom side of the fixed block, an annular sleeve is arranged on the side wall of the right end, close to the first reset spring, of the fixed rod, and the annular sleeve is connected to the inner wall of the connecting rod in a sliding mode inside a sliding groove formed in the inner wall of the connecting rod in a sliding mode.

Preferably, the outer surface cover of body is equipped with the packing element, and the packing element is located between the outer wall of body and the inner wall of packer, and the central symmetry position of packer inner wall is established to the packing element cover.

Preferably, the inside sliding connection of fixed block has the slide bar, and the one end fixed connection of the slide bar keeping away from the fixed block is in the central symmetry position of packing element outer wall.

Preferably, the surface of the sliding rod is sleeved with a second return spring, the second return spring is located between the end part of the fixed block and the outer wall of the rubber cylinder, a sliding plate is fixedly sleeved at the end part of the sliding rod close to the fixed block, and the sliding plate is of an annular structure.

Preferably, the sliding plate is slidably connected to the inside of a limiting groove formed in the fixed block, and the limiting groove is matched with the sliding plate.

Preferably, the outer surface of the packer is provided with a protective gasket, and the protective gasket is positioned outside the two groups of connecting components arranged inside the packer

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

1. according to the packer provided by the utility model, the connecting assembly and the protective washer are arranged, and the connecting assembly and the elastic protective washer can be arranged on two sides of the rubber cylinder through deformation of the rubber cylinder, so that the pulling and buffering effects on the materials and impact force at the upper end and the lower end of the rubber cylinder are effectively realized, the damage to the rubber cylinder is avoided, and the protective effect is improved;

2. the packer provided by the utility model is characterized in that the fixed block is arranged between the two groups of connecting assemblies, the fixed block is connected with the rubber cylinder through the sliding rod, and the second return spring sleeved on the surface of the sliding rod can effectively play a role in buffering when the rubber cylinder is impacted by external substances.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic cross-sectional view of a connection structure according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 3;

fig. 5 is a schematic view of the overall structure of the present invention.

In the figure: the packer comprises a pipe body 1, a packer 2, a protective gasket 3, a sealing ring 4, a rubber sleeve 5, a sinking groove 6, a hinged base 7, a connecting rod 8, a groove 9, a first return spring 10, a fixing rod 11, an annular sleeve 12, a sliding groove 13, a fixing block 14, a second return spring 15, a sliding rod 16, a limiting groove 17 and a sliding plate 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: a packer, the packer comprising: the packer comprises a pipe body 1, wherein a packer 2 is sleeved on the outer surface of the pipe body 1, the packer 2 is sleeved on the central symmetrical position of the pipe body 1, a sealing ring 4 is sleeved on the surface of the pipe body 1, the sealing ring 4 is positioned at the joint of the pipe body 1 and the packer 2, two groups of sealing rings 4 are arranged, the two groups of sealing rings 4 are vertically and symmetrically distributed by taking the packer 2 as the center, a rubber cylinder 5 is sleeved on the outer surface of the pipe body 1, the rubber cylinder 5 is positioned between the outer wall of the pipe body 1 and the inner wall of the packer 2, the rubber cylinder 5 is sleeved on the central symmetrical position of the inner wall of the packer 2, a protection gasket 3 is arranged on the outer surface of the packer 2, and the protection gasket 3 is positioned outside two groups of connecting components arranged inside the packer 2;

the connecting assembly is arranged inside the protective washer 3 and comprises two connecting rods 8, the connecting rods 8 are hinged inside sinking grooves 6 formed in the packer 2 through a hinged base 7, the sinking grooves 6 are formed in the side walls, located on the upper side and the lower side of the rubber sleeve 5, of the packer 2, the sinking grooves 6 are arranged in two groups, the two groups of sinking grooves 6 are distributed in an up-and-down symmetrical mode with the rubber sleeve 5 as the center, each group of the packer 2 is provided with a plurality of sinking grooves 6, the sinking grooves 6 are distributed in an annular uniform and symmetrical mode with the packer 2 as the center, one end, far away from the hinged base 7, of each connecting rod 8 is connected with a fixed block 14 through the hinged base 7 which is connected in the connecting rod 8 in a sliding mode, the two connecting rods 8 are arranged in an up-and-down symmetrical mode with the fixed block 14 as the center;

the sliding assembly is arranged inside the connecting rod 8 and comprises a first return spring 10, the first return spring 10 is fixedly arranged at the bottom of a groove 9 formed in the connecting rod 8, the bottom end, far away from the groove 9, of the first return spring 10 is connected with a fixed rod 11, one end, far away from the first return spring 10, of the fixed rod 11 is connected to the bottom side of a fixed block 14, an annular sleeve 12 is arranged on the side wall, close to the right end of the first return spring 10, of the fixed rod 11, the annular sleeve 12 is connected inside a sliding groove 13 formed in the inner wall of the connecting rod 8 in a sliding mode, a sliding rod 16 is connected inside the fixed block 14 in a sliding mode, one end, far away from the fixed block 14, of the sliding rod 16 is fixedly connected to the central symmetry position of the outer wall of the rubber barrel 5, a second return spring 15 is sleeved on the surface of the sliding rod 16, the second return spring 15 is located between the end of the fixed block 14 and the outer wall of the rubber barrel 5, and a sliding plate 18 is fixedly sleeved on the end, close to the fixed block 14, the sliding plate 18 is of an annular structure, the sliding plate 18 is slidably connected inside a limiting groove 17 formed in the fixed block 14, and the limiting groove 17 is matched with the sliding plate 18.

The working principle is as follows: when in actual use, firstly, the pipe body 1 is connected with an external device, then the packer 2 is sleeved outside the pipe body 1, the upper end and the lower end of the packer 2 are sealed by the sealing rings 4, then the packer 2 is controlled to start packing operation, pressure is generated on the rubber cylinder 5 under the action of the packer 2, so that the rubber cylinder 5 deforms, at the moment, the fixing rod 11 moves in the groove 9 formed in the connecting rod 8, meanwhile, the annular sleeve 12 connected to the end part of the fixing rod 11 slides in the sliding groove 13 formed in the inner wall of the connecting rod 8 in cooperation with the sliding of the fixing rod 11, under the continuous deformation of the rubber cylinder 5, the sliding rod 16 connected to the outside of the rubber cylinder 5 slides in the fixing block 14, the sliding plate 18 connected to the end part of the sliding rod 16 slides in cooperation with the limiting groove 17 formed in the fixing block 14, so as to adapt to the deformation of the rubber cylinder 5 which changes constantly, and when the rubber cylinder 5 deforms, the glue cylinder 5 pushes the connecting rods 8 connected to two ends of the fixing block 14 to incline, the incline of the connecting rods 8 can cause the side walls of the fixing block 14 to be compressed in the grooves 9, the grooves 9 are expanded, and protective layers are formed on two sides of the glue cylinder 5.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Packer, its characterized in that: the packer comprises: the packer comprises a pipe body (1), wherein packers (2) are sleeved on the outer surface of the pipe body (1), the packers (2) are sleeved at the central symmetrical positions of the pipe body (1), sealing rings (4) are sleeved on the surface of the pipe body (1), the sealing rings (4) are located at the joint of the pipe body (1) and the packers (2), two groups of sealing rings (4) are arranged, and the two groups of sealing rings (4) are vertically and symmetrically distributed by taking the packers (2) as the center;

the connecting assembly is arranged inside the protective washer (3) and comprises connecting rods (8), the connecting rods (8) are hinged inside sunken grooves (6) formed in the packer (2) through hinged bases (7), the sunken grooves (6) are formed in the side walls, located on the upper side and the lower side of the rubber sleeve (5), of the packer (2), two groups of sunken grooves (6) are arranged, the two groups of sunken grooves (6) are vertically and symmetrically distributed by taking the rubber sleeve (5) as the center, and each group of packers (2) is provided with a plurality of sinking grooves (6), the sinking grooves (6) are uniformly and symmetrically distributed in an annular manner by taking the packers (2) as the center, one end of the connecting rod (8) far away from the hinged base (7) is connected with a fixed block (14) through the hinged base (7) which is connected in the connecting rod (8) in a sliding manner, two connecting rods (8) are arranged, and the two connecting rods (8) are distributed in an up-and-down symmetrical manner by taking the fixed block (14) as the center;

the sliding assembly, the sliding assembly sets up the inside at connecting rod (8), the sliding assembly includes first reset spring (10), first reset spring (10) are fixed to be set up in the bottom of connecting rod (8) inside recess (9) of seting up, the bottom of keeping away from recess (9) in first reset spring (10) is connected with dead lever (11), the bottom side at fixed block (14) is connected to the one end of keeping away from first reset spring (10) dead lever (11), and dead lever (11) are close to the right-hand member lateral wall of first reset spring (10) and are provided with annular cover (12), inside spout (13) that annular cover (12) sliding connection was seted up at connecting rod (8) inner wall.

2. The packer of claim 1, wherein: the outer surface cover of body (1) is equipped with packing element (5), and packing element (5) are located between the outer wall of body (1) and the inner wall of packer (2), and packing element (5) cover is established at the central symmetry position of packer (2) inner wall.

3. The packer of claim 1, wherein: the rubber tube is characterized in that a sliding rod (16) is connected to the inside of the fixed block (14) in a sliding mode, and one end, far away from the fixed block (14), of the sliding rod (16) is fixedly connected to the central symmetrical position of the outer wall of the rubber tube (5).

4. A packer as claimed in claim 3, wherein: slide bar (16) surface cover is equipped with second reset spring (15), and second reset spring (15) are located between the tip of fixed block (14) and packing element (5) outer wall, and slide bar (16) are close to the fixed cover of tip of fixed block (14) and are equipped with slide (18), and slide (18) are the loop configuration.

5. The packer of claim 4, wherein: the sliding plate (18) is connected inside a limiting groove (17) formed in the fixing block (14) in a sliding mode, and the limiting groove (17) is matched with the sliding plate (18).

6. The packer of claim 1, wherein: the outer surface of the packer (2) is provided with a protective gasket (3), and the protective gasket (3) is positioned on the outer sides of the two groups of connecting assemblies arranged inside the packer (2).