CN215907812U

CN215907812U - Mechanical packer

Info

Publication number: CN215907812U
Application number: CN202122596247.2U
Authority: CN
Inventors: 姬建国
Original assignee: Changge Coquimbo Machinery Chemical Co ltd
Current assignee: Changge Coquimbo Machinery Chemical Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-02-25
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a mechanical packer, which comprises a driving pipe, a sealing assembly and a locking mechanism, wherein the upper part of the driving pipe is provided with the sealing assembly and the locking mechanism, the driving pipe is of a cylindrical cavity structure with openings at two ends, a driving rod is arranged in the driving pipe, one end of the driving rod is connected with the locking mechanism, the locking mechanism comprises an extrusion table, a sliding sheet, a telescopic rod and a limiting sheet which are fixed on the driving rod, the sliding sheet is fixedly arranged on the outer wall of the driving pipe through the telescopic rod, and the sliding sheet is provided with a plurality of limiting sheets; the sealing assembly is a flexible rubber sleeve, and the number of the sealing assemblies is at least three. The utility model is used for solving the problem that the existing water injection type packer is easy to fall off when being set, locked and limited.

Description

Mechanical packer

Technical Field

The utility model belongs to the technical field of manufacturing of general mechanical devices, and particularly relates to a mechanical packer.

Background

In the process of oil field development, the formation pressure of an oil field is gradually reduced along with the exploitation and production of the oil field, so that the recovery rate of crude oil is reduced. To maintain formation pressure and to maintain the well's productive capacity, water injection is required to supplement the formation pressure. The existing mechanical packer needs to be locked firstly in the setting process, the packer is locked by generally adopting a lock sleeve and a lock spring, and the locking mode is a double locking mode, so that the packer is easy to fall off in the setting process and the use is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mechanical packer to solve the problem that an existing mechanical packer is easy to fall off when being set, locked and limited.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a mechanical packer comprises a driving pipe, a sealing assembly and a locking mechanism, wherein the sealing assembly and the locking mechanism are arranged at the upper part of the driving pipe, the driving pipe is of a cylindrical cavity structure with openings at two ends, a driving rod is arranged in the driving pipe, one end of the driving rod is connected with the locking mechanism, the locking mechanism comprises an extrusion table, a sliding sheet, a telescopic rod and a limiting sheet which are fixed on the driving rod, the sliding sheet is fixedly arranged on the outer wall of the driving pipe through the telescopic rod, and a plurality of limiting sheets are arranged on the sliding sheet; the sealing assembly is a flexible rubber sleeve, and the number of the sealing assemblies is at least three.

Furthermore, the sliding sheet is an arc-shaped sheet, and clamping platforms are obliquely arranged at two ends of the sliding sheet.

Furthermore, the driving rod is provided with a limiting clamping table and a connecting thread, the locking mechanism is a cylindrical pipeline, and a clamping plate is arranged inside the locking mechanism.

Furthermore, a plurality of rectangular openings are annularly distributed on the pipe wall of the locking mechanism, and the rectangular openings and the limiting pieces are correspondingly arranged.

Furthermore, the outer diameter of the driving pipe is 110mm-120mm, and the length of the driving pipe is 1300mm-1400 mm.

Further, the sealing assembly is made of cylindrical rubber and adopts a butadiene-acrylonitrile rubber barrel.

Compared with the prior art, the utility model has at least one of the following beneficial effects:

1. the upper portion of the driving pipe is provided with a sealing assembly and a locking mechanism, wherein the sealing assembly is made of a nitrile rubber barrel and can be driven after the driving rod is limited to achieve sealing, the locking portion is provided with a conventional lock sleeve and a lock spring locking structure, the locking mechanism is independent, the sliding sheet can be driven through the extrusion table, the limiting sheet is guided out of the rectangular opening through the matched telescopic rod, the limiting of an external clamping jaw is achieved, a dual limiting mode is adopted, and the limiting capacity and the stability of equipment can be greatly improved.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a partial structural schematic view of the locking mechanism of the present invention.

In the figure: 1-driving pipe, 2-sealing assembly, 3-locking mechanism, 4-connecting thread, 5-clamping plate, 6-extrusion table, 7-telescopic rod, 8-limiting plate, 9-sliding plate, 10-driving rod, 11-limiting clamping table and 12-rectangular opening.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the following description is taken in conjunction with the accompanying drawings

The present invention will be described in further detail with reference to examples. It should be understood that the particulars described herein are of particular interest

The examples are given solely for the purpose of illustration and are not intended to be limiting.

In the description of the present invention, it is to be understood that "front, rear, upper, lower, left, right", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner", "outer", "inner",

the directions or positional relationships indicated by the outer, bottom, top, etc. are generally based on the directions or positions shown in the drawings

Relationships are merely for convenience of description and simplicity of description, and where not otherwise stated, these are

The directional terms do not indicate or imply that the referenced device or element must have a particular orientation or be in a particular direction

Bit construction and operation, and therefore, should not be construed as limiting the scope of the utility model.

Example 1

Referring to fig. 1 and 2, a mechanical packer comprises a driving tube 1, a sealing assembly 2 and a locking mechanism 3, wherein the sealing assembly 2 and the locking mechanism 3 are arranged at the upper part of the driving tube 1, the driving tube 1 is a cylindrical cavity structure with openings at two ends, a driving rod 10 is arranged inside the driving tube 1, one end of the driving rod 10 is connected with the locking mechanism 3, the locking mechanism 3 comprises an extrusion table 6, a sliding sheet 9, an expansion link 7 and a limiting sheet 8, which are fixed on the driving rod 10, the sliding sheet 9 is fixedly arranged on the outer wall of the driving tube through the expansion link 7, and the sliding sheet 9 is provided with a plurality of limiting sheets 8; the sealing assemblies 2 are flexible rubber sleeves, and at least three sealing assemblies 2 are arranged; in the scheme, the sealing assembly and the locking mechanism are arranged on the upper portion of the driving pipe, wherein the sealing assembly is made of a nitrile rubber barrel and can be driven after the driving rod is limited, sealing is achieved, the locking portion is provided with a conventional lock sleeve and a lock spring locking structure, an independent locking mechanism is arranged, the sliding sheet can be driven through the extrusion table, the limiting sheet is guided out of the rectangular opening through the matched telescopic rod, the limiting of an external clamping jaw is achieved, a dual limiting mode is adopted, and the limiting capacity and the stability of equipment can be greatly improved.

Example 2:

in this embodiment, the sliding piece 9 is further described on the basis of the existing embodiment 1, the sliding piece 9 is an arc-shaped piece, and two ends of the sliding piece 9 are obliquely provided with clamping platforms; a limiting clamping table 11 and a connecting thread 4 are arranged on the driving rod 10, the locking mechanism 3 is a cylindrical pipeline, and a clamping plate 5 is arranged inside the locking mechanism 3; whole slide 9 is the arc piece, and the surface sets up for smooth, is convenient for use with the extrusion station cooperation, further drives telescopic link and spacing piece.

Example 3:

in this embodiment, a locking mechanism 3 is further described on the basis of the existing embodiment 1, a plurality of rectangular openings 12 are annularly distributed on a pipe wall of the locking mechanism 3, and the rectangular openings 12 are arranged corresponding to the limiting pieces 8; the outer diameter of the driving pipe 1 is 115mm, and the length of the driving pipe 1 is 1340 mm; the sealing assembly 2 is made of cylindrical rubber and adopts a butadiene-acrylonitrile rubber barrel; the rectangular opening 12 arranged on the pipe wall can be used for guiding out the limiting sheet to limit the limiting position with the outside.

The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. In a further aspect of the present invention,

when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of other ones of the embodiments

It is also within the scope of the present invention for the embodiment to embody such feature, structure, or characteristic.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. A mechanical packer comprises a driving pipe (1), a sealing assembly (2) and a locking mechanism (3), and is characterized in that the sealing assembly (2) and the locking mechanism (3) are arranged at the upper part of the driving pipe (1), the driving pipe (1) is of a cylindrical cavity structure with openings at two ends, a driving rod (10) is arranged inside the driving pipe (1), one end of the driving rod (10) is connected with the locking mechanism (3), the locking mechanism (3) comprises an extrusion table (6), a sliding sheet (9), a telescopic rod (7) and a limiting sheet (8) which are fixed on the driving rod (10), the sliding sheet (9) is fixedly arranged on the outer wall of the driving pipe through the telescopic rod (7), and the sliding sheet (9) is provided with a plurality of limiting sheets (8); the sealing assemblies (2) are flexible rubber sleeves, and the number of the sealing assemblies (2) is at least three.

2. A mechanical packer according to claim 1, wherein: the sliding sheet (9) is an arc-shaped sheet, and clamping platforms are obliquely arranged at two ends of the sliding sheet (9).

3. A mechanical packer according to claim 1, wherein: the driving rod (10) is provided with a limiting clamping table (11) and a connecting thread (4), the locking mechanism (3) is a cylindrical pipeline, and a clamping plate (5) is arranged inside the locking mechanism (3).

4. A mechanical packer according to claim 1, wherein: the pipe wall of the locking mechanism (3) is annularly provided with a plurality of rectangular openings (12), and the rectangular openings (12) are arranged corresponding to the limiting pieces (8).

5. A mechanical packer according to claim 1, wherein: the outer diameter of the driving pipe (1) is 110mm-120mm, and the length of the driving pipe (1) is 1300mm-1400 mm.

6. A mechanical packer according to claim 1, wherein: the sealing assembly (2) is made of cylindrical rubber and adopts a butadiene-acrylonitrile rubber barrel.