CN215979289U

CN215979289U - Deep gas vertical well fracturing and well completion integrated packer

Info

Publication number: CN215979289U
Application number: CN202122063785.5U
Authority: CN
Inventors: 李斌; 张少岳; 汪宁飞
Original assignee: Shaanxi Sanfeng Petroleum Technology Co ltd
Current assignee: Shaanxi Sanfeng Petroleum Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-08
Anticipated expiration: 2031-08-30

Abstract

The utility model belongs to the technical field of packers, and particularly relates to a deep gas vertical well fracturing and well completion integrated packer which comprises a packer body, wherein storage grooves are formed in the inner top of the packer body and the inner bottom of the packer body at equal intervals, limiting sliding grooves are formed in two sides of the inner wall of each storage groove, Contraband type limiting blocks are arranged in the storage grooves, limiting sliding blocks are arranged in the middle parts of two sides of the Contraband type limiting blocks, and a limiting spring is arranged in the middle part of one end of the Contraband type limiting block. Through the cooperation of accomodating groove, spacing spout, Contraband type stopper, spacing slider and spacing spring use, can reduce the installation of spacing ball and accomodate the degree of difficulty, the installation of the spacing ball of being convenient for is used, through the use of spacing ball, can change the sliding friction power when packer body and oil pipe contact into rolling friction power, is favorable to reducing moving down the installation degree of difficulty of packer body, and the staff of being convenient for is to the use of packer body.

Description

Deep gas vertical well fracturing and well completion integrated packer

Technical Field

The utility model belongs to the technical field of packers, and particularly relates to a deep gas vertical well fracturing and well completion integrated packer.

Background

The packer is a downhole tool which is connected to a downhole string and used for packing and isolating an annular space between an oil pipe and a casing of an oil and gas well or a borehole wall of an open hole, can be divided into an expansion type, a compression type, a self-sealing type, a wedging type, a self-expansion type, a combined type and the like, and has the action principle that a rubber sleeve is expanded to plug a pipeline;

the packer is installed at the oil pipe surface and inside the pipeline is slided into along oil pipe, and at the in-process that the packer removed, the contact of packer inner wall and oil pipe outer wall can produce great frictional force, can influence the installation that moves down of packer, and when moving preset position department down, lacked auxiliary fixture, was unfavorable for the packing element inflation to be used.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides the deep gas vertical well fracturing and well completion integrated packer which has the characteristics that the sliding friction force generated when the packer body is in contact with an oil pipe can be converted into the rolling friction force, the downward moving installation difficulty of the packer body is favorably reduced, and the use of the packer body by workers is facilitated.

In order to achieve the purpose, the utility model provides the following technical scheme: a deep gas vertical well fracturing and well completion integrated packer comprises a packer body, wherein storage grooves are formed in the inner top of the packer body and the inner bottom of the packer body at equal intervals, limiting sliding grooves are formed in two sides of the inner wall of each storage groove, Contraband type limiting blocks are arranged in the storage grooves, limiting sliding blocks are arranged in the middle of two sides of a Contraband type limiting block, a limiting spring is arranged in the middle of one end of a Contraband type limiting block, one end of the limiting spring is connected with the packer body, and a limiting ball is arranged in the Contraband type limiting block;

the packer is characterized in that a speed reducing block is installed at the bottom of the packer body, a mounting groove is formed in the bottom end of the packer body at an equal distance, a discharge hole is formed in one side of the top end of the inner wall of the mounting groove, a speed reducing baffle is installed in the mounting groove in an articulated mode, a speed reducing spring is installed in the middle of one end of the speed reducing baffle, and one end of the speed reducing spring is connected with the speed reducing block.

As the preferable technical scheme of the deep gas vertical well fracturing and completion integrated packer, the longitudinal section size of the accommodating groove is the same as that of the Contraband type limiting block, and the depth of the accommodating groove is larger than that of the Contraband type limiting block.

As a preferred technical scheme of the deep gas vertical well fracturing and well completion integrated packer, the longitudinal section size of the limiting chute is the same as that of the limiting slide block), and the limiting slide block) is positioned inside the limiting chute.

According to the preferable technical scheme, the rotating holes are formed in the middle parts of two sides of the inner wall of the Contraband type limiting block, the rotating shafts are arranged on two sides of the outer surface of the limiting ball, the diameter of each rotating shaft is the same as the inner diameter of each rotating hole, and each rotating shaft is located inside each rotating hole.

According to the preferable technical scheme of the deep gas vertical well fracturing and well completion integrated packer, internal threads are formed in the speed reducing block, external threads are formed in the bottom of the outer surface of the packer body, and the speed reducing block is connected with the packer body in a threaded engagement mode.

As the preferable technical scheme of the deep gas vertical well fracturing and completion integrated packer, the length of the speed reduction baffle is greater than that of the discharge hole, and the width of the speed reduction baffle is the same as that of the discharge hole.

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

1. when the packer is used, the installation and storage difficulty of the limiting ball can be reduced through the matching use of the containing groove, the limiting sliding groove, the Contraband type limiting block, the limiting sliding block and the limiting spring, the installation and use of the limiting ball are facilitated, the sliding friction force generated when the packer body is in contact with an oil pipe can be converted into the rolling friction force through the use of the limiting ball, the downward moving installation difficulty of the packer body is facilitated to be reduced, and the use of the packer body by workers is facilitated.

2. When the packer is used, the speed reducing block, the mounting groove, the discharge hole, the speed reducing baffle and the speed reducing spring are arranged, the speed reducing baffle is unfolded under the action of fluid pressure in the downward moving process of the packer body, the downward moving speed of the packer body can be reduced by using the speed reducing baffle, and workers can conveniently mount the packer body.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a transverse cross-sectional view of the present invention;

FIG. 4 is a schematic view of the mounting structure of the ball retainer of the present invention;

fig. 5 is a schematic view of the installation structure of the decelerating barrier of the utility model.

In the figure: 1. a packer body; 2. a receiving groove; 3. a limiting chute; 4. model Contraband a stopper; 5. a limiting slide block; 6. a limiting spring; 7. limiting balls; 8. a deceleration block; 9. mounting grooves; 10. a discharge hole; 11. a deceleration baffle; 12. a deceleration spring.

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.

Examples

Referring to fig. 1-5, the present invention provides the following technical solutions: a deep gas vertical well fracturing and well completion integrated packer comprises a packer body 1, wherein the top in the packer body 1 and the bottom in the packer body 1 are provided with accommodating grooves 2 at equal intervals, two sides of the inner wall of each accommodating groove 2 are provided with limiting sliding grooves 3, Contraband type limiting blocks 4 are arranged in the accommodating grooves 2, the longitudinal section size of each accommodating groove 2 is the same as that of a Contraband type limiting block 4, the depth of each accommodating groove 2 is larger than that of the Contraband type limiting block 4, the Contraband type limiting blocks 4 can be accommodated, the installation difficulty of the Contraband type limiting blocks 4 is reduced, the middle parts of two sides of each Contraband type limiting block 4 are provided with limiting sliding blocks 5, the longitudinal section size of each limiting sliding groove 3 is the same as that of each limiting sliding block 5, each limiting sliding block 5 is positioned in the limiting sliding groove 3, the movement of the Contraband type limiting block 4 can be limited, the Contraband type limiting block 4 is convenient to use, a limiting spring 6 is arranged in the middle part of one end of each Contraband type limiting block 4, one end of the limiting spring 6 is connected with the packer body 1, a limiting ball 7 is arranged inside the Contraband type limiting block 4, rotating holes are formed in the middle parts of two sides of the inner wall of the Contraband type limiting block 4, rotating shafts are arranged on two sides of the outer surface of the limiting ball 7, the diameter of each rotating shaft is the same as the inner diameter of each rotating hole, and the rotating shafts are located inside the rotating holes, so that the mounting difficulty of the limiting ball 7 is reduced, and the use of the limiting ball 7 is facilitated;

speed reduction block 8 is installed to 1 bottom of packer body, speed reduction block 8 has inside seted up the internal thread, the external screw thread has been seted up to 1 surface bottom of packer body, speed reduction block 8 and packer body are connected through thread engagement between 1, the installation degree of difficulty of speed reduction block 8 has been reduced, be convenient for speed reduction block 8's installation is used, mounting groove 9 has been seted up to 1 bottom equidistance of packer body, relief hole 10 has been seted up to mounting groove 9 inner wall top one side, mounting groove 9 is inside to articulate and to install speed reduction baffle 11, speed reduction baffle 11's length is greater than relief hole 10's length, speed reduction baffle 11's width is the same with relief hole 10's length, can shelter from relief hole 10, be favorable to improving speed reduction baffle 11's performance, speed reduction baffle 11 one end mid-mounting has speed reduction spring 12, speed reduction spring 12 one end is connected with speed reduction block 8.

The working principle and the using process of the utility model are as follows: in the process that the packer body 1 moves downwards along with an oil pipe, sliding friction force generated when the packer body 1 is in contact with the oil pipe can be converted into rolling friction force through the limiting ball 7, the downward movement installation difficulty of the packer body 1 can be reduced, the packer body 1 can be conveniently used by workers, the installation and storage difficulty of the limiting ball 7 can be reduced through the matched use of the accommodating groove 2, the limiting sliding groove 3, the Contraband type limiting block 4, the limiting sliding block 5 and the limiting spring 6, and the installation and use of the limiting ball 7 are facilitated;

packer body 1 moves down the in-process inside the pipeline, and pressure can increase gradually, and intraductal fluid can promote speed reduction baffle 11 and rotate, and the speed reduction baffle 11 that makes seals relief hole 10 gradually, when speed reduction baffle 11 contacted the pipe wall, can slow down moving down speed of packer body 1, and the staff of being convenient for uses the installation of packer body 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a deep gas vertical well fracturing completion integration packer, includes packer body (1), its characterized in that: the packer is characterized in that containing grooves (2) are formed in the top in the packer body (1) and the bottom in the packer body (1) at equal distances, limiting sliding grooves (3) are formed in two sides of the inner wall of each containing groove (2), Contraband type limiting blocks (4) are installed in the containing grooves (2), limiting sliding blocks (5) are arranged in the middle of two sides of each Contraband type limiting block (4), a limiting spring (6) is installed in the middle of one end of each Contraband type limiting block (4), one end of each limiting spring (6) is connected with the packer body (1), and limiting balls (7) are installed in each Contraband type limiting block (4);

speed reduction piece (8) are installed to packer body (1) bottom, mounting groove (9) have been seted up to packer body (1) bottom equidistance, relief hole (10) have been seted up to mounting groove (9) inner wall top one side, mounting groove (9) inside articulated installation has speed reduction baffle (11), speed reduction baffle (11) one end mid-mounting has speed reduction spring (12), speed reduction spring (12) one end is connected with speed reduction piece (8).

2. The deep gas vertical well fracturing and completion integrated packer of claim 1, wherein: the longitudinal section size of the accommodating groove (2) is the same as that of the Contraband type limiting block (4), and the depth of the accommodating groove (2) is larger than the length of the Contraband type limiting block (4).

3. The deep gas vertical well fracturing and completion integrated packer of claim 1, wherein: the longitudinal section size of the limiting sliding groove (3) is the same as that of the limiting sliding block (5), and the limiting sliding block (5) is located inside the limiting sliding groove (3).

4. The deep gas vertical well fracturing and completion integrated packer of claim 1, wherein: contraband type stopper (4) inner wall both sides middle part has all been seted up and has been changeed the hole, spacing ball (7) surface both sides all are provided with the pivot, the diameter of pivot is the same with the internal diameter that changes the hole, the pivot is located changes downthehole portion.

5. The deep gas vertical well fracturing and completion integrated packer of claim 1, wherein: the inner thread is arranged inside the speed reducing block (8), the outer thread is arranged at the bottom of the outer surface of the packer body (1), and the speed reducing block (8) is connected with the packer body (1) through thread engagement.

6. The deep gas vertical well fracturing and completion integrated packer of claim 1, wherein: the length of the speed reduction baffle (11) is greater than that of the discharge hole (10), and the width of the speed reduction baffle (11) is the same as that of the discharge hole (10).