CN220267657U

CN220267657U - Deep well fracturing acidizing packer

Info

Publication number: CN220267657U
Application number: CN202321274799.4U
Authority: CN
Inventors: 吕先果; 刘涛; 潘登雷; 张明承; 徐杰; 孙怀志; 夏志云
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-12-29
Anticipated expiration: 2033-05-24

Abstract

The utility model relates to the technical field of packers, and discloses a deep well fracturing and acidizing packer, which comprises the following components: a packer body; the outer side wall of the packer body is provided with a sand prevention assembly, and the sand prevention assembly comprises: the ring bodies are symmetrically arranged on the outer side walls of the two ends of the packer body; the sliding grooves are symmetrically formed in the outer side wall of the ring body in pairs; one end of the box body is connected in the chute in a sliding way; one end of the L-shaped plate is arranged on the outer side wall of the other end of the box body; this deep well fracturing acidizing packer has set up the annular dust screen of foraminiferous ring shape that can dismantle the change at the packer body lateral wall, through the joint part at foraminiferous ring shape dust screen both ends with set up the draw-in groove looks joint on the ring body at packer body both ends, convenient to use person dismantles and changes new foraminiferous ring shape dust screen. According to the deep well fracturing and acidizing packer, the plate body is arranged at one end, close to the annular dust screen with the holes, of the U-shaped rod, so that the contact surface between the U-shaped rod and a finger of a user is increased, and the U-shaped rod is convenient to press by the user.

Description

Deep well fracturing acidizing packer

Technical Field

The utility model relates to the technical field of packers, in particular to a deep well fracturing acidification packer.

Background

With the development of unconventional oil and gas resources becoming deeper, the multi-layer staged fracturing is increasingly widely used, and is mainly used for horizontal well operation, in the operation, casing cementing is generally mechanical staged fracturing, and the fracturing mode can improve the diversion capability of a reservoir, increase the yield of a production well and the injection quantity of an injection well. A packer generally refers to a downhole tool attached to a tubular string for sealing off the annulus between an oil conduit and an oil and gas well casing or borehole wall. The separator is classified into an expansion type, a compression type, a self-sealing type, a wedging type, a self-expansion type, a combination type, and the like. The fracturing acidification packer is a compression type unidirectional slip supporting rotary setting and lifting unlocking packer and mainly comprises an upper joint, a sealing glue cylinder, a slip assembly, a centralizing body assembly, a central pipe, a T-shaped hook, a lower joint and the like.

Chinese patent publication No. CN213684088U discloses a fracturing sand control packer, including the packer body, two spouts have been seted up respectively to the front of packer body, the left surface of spout inner wall and the left surface sliding connection of slider, the left surface fixed connection of the right side dust screen of slider, the left surface of dust screen and the right side fixed connection of connecting block. Through setting up spout, slider and dust screen, when using, people place the packer body in the downthehole that has been opened, and the packer body receives the friction of grit at the in-process of falling, and dust screen drives the slider and slides in the spout, and the grit gets into inside the packer body when reducing the whereabouts.

Summarizing, it is inside to obtain that the dust screen panel is used for the separation grit to get into the packer body, rubs with the grit at the in-process of separation and can produce certain loss, leads to the barrier ability of dust screen panel to descend, needs periodic replacement, and dust screen panel passes through slider and packer body fixed connection, inconvenient dismantlement.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a deep well fracturing acidification packer which has the advantages of being convenient for a user to detach and replace a new dust screen, and solves the problem that the dust screen is fixedly connected with a packer body through a sliding block and is inconvenient to detach.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: a deep well frac acidizing packer comprising:

a packer body;

the outer side wall of the packer body is provided with a sand prevention assembly, and the sand prevention assembly comprises:

the ring bodies are symmetrically arranged on the outer side walls of the two ends of the packer body;

the sliding grooves are symmetrically formed in the outer side wall of the ring body in pairs;

one end of the box body is connected in the chute in a sliding way;

one end of the L-shaped plate is arranged on the outer side wall of the other end of the box body;

the annular dustproof net with holes is formed, and the through holes penetrate through the other ends of the four L-shaped plates;

the through holes are symmetrically arranged on the upper surface of the box body;

the two ends of the U-shaped rod respectively penetrate through the two through holes;

the elastic pieces are symmetrically arranged in the box body, and two ends of the two elastic pieces are respectively connected with the inner side wall of the box body and the outer side wall of the U-shaped rod;

the clamping groove is formed in the inner side wall of the ring body and is communicated with the sliding groove, and one end, away from the annular dust screen with the holes, of the U-shaped rod is slidably connected in the clamping groove.

Preferably, a plate body is arranged at one end of the U-shaped rod, which is close to the annular dust screen with the holes.

Preferably, the outer side wall of the plate body is provided with a threaded rod, one end outer side wall of the U-shaped rod, which is close to the annular dust screen with holes, is provided with a threaded hole matched with the threaded rod, and the threaded rod is in threaded connection with the threaded hole.

Preferably, the outer side wall of the plate body is provided with a rubber pad.

Preferably, the outer side wall of the rubber pad is provided with anti-skid patterns.

Preferably, one end of the U-shaped rod, which is far away from the annular dust screen with the holes, is a cone.

(III) beneficial effects

Compared with the prior art, the utility model provides a deep well fracturing acidizing packer, which comprises the following components

The beneficial effects are that:

1. this deep well fracturing acidizing packer has set up the annular dust screen of foraminiferous ring shape that can dismantle the change at the packer body lateral wall, through the joint part at foraminiferous ring shape dust screen both ends with set up the draw-in groove looks joint on the ring body at packer body both ends, convenient to use person dismantles and changes new foraminiferous ring shape dust screen.

2. According to the deep well fracturing and acidizing packer, the plate body is arranged at one end, close to the annular dust screen with the holes, of the U-shaped rod, so that the contact surface between the U-shaped rod and a finger of a user is increased, and the U-shaped rod is convenient to press by the user.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the internal structure of the perforated annular dust screen of the present utility model;

fig. 3 is an enlarged view of a portion a in fig. 2;

FIG. 4 is a schematic top view of a through hole according to the present utility model;

FIG. 5 is a schematic top view of an L-shaped board according to the present utility model;

FIG. 6 is a schematic view of the structure of the threaded rod of the present utility model;

fig. 7 is a schematic view of a structure of a screw hole according to the present utility model.

In the figure:

1. a packer body;

2. a sand control assembly; 21. a ring body; 22. a chute; 23. a case body; 24. an elastic member; 25. a U-shaped rod; 26. a through hole; 27. a clamping groove; 28. an annular dust screen with holes; 29. an L-shaped plate;

3. a plate body;

4. rubber cushion;

5. a threaded rod;

6. and (3) a threaded hole.

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.

Example 1

Referring to fig. 1-5, a deep well fracturing acidizing packer comprising: a packer body 1; the packer body 1 is connected to a down-hole tubular column and is used for sealing and isolating an oil pipe and an oil gas well casing or an open hole well wall annular space.

The outer side wall of the packer body 1 is provided with a sand prevention assembly 2, and the sand prevention assembly 2 comprises: the ring bodies 21 are symmetrically arranged on the outer side walls of the two ends of the packer body 1; the sliding grooves 22 are symmetrically arranged on the outer side wall of the ring body 21 in pairs; a box 23, one end of which is slidably connected to the inside of the chute 22; an L-shaped plate 29 having one end provided on the outer side wall of the other end of the case 23; a ring-shaped dust screen 28 with holes, through which the other ends of the four L-shaped plates 29 are penetrated; the through holes 26 are symmetrically arranged on the upper surface of the box body 23; a U-shaped rod 25, two ends of which penetrate through the two through holes 26 respectively; the elastic pieces 24 are symmetrically arranged in the box body 23, and two ends of the two elastic pieces 24 are respectively connected with the inner side wall of the box body 23 and the outer side wall of the U-shaped rod 25; the clamping groove 27 is formed in the inner side wall of the ring body 21 and is communicated with the sliding groove 22, one end of the U-shaped rod 25, which is far away from the annular dust screen 28 with holes, is slidably connected in the clamping groove 27, when the annular dust screen 28 with holes on the outer side wall of the packer body 1 needs to be replaced, one end, which is close to the annular dust screen 28 with holes, of the four U-shaped rods 25 is pressed, one end, which is far away from the annular dust screen 28 with holes, of the U-shaped rod 25 is slidably moved out of the clamping groove 27, the elastic piece 24 connected with the U-shaped rod 25 is compressed, when one end, which is completely slidably moved out of the clamping groove 27, of the U-shaped rod 25 is pulled towards one end, which is far away from the annular dust screen 28 with holes, so that the L-shaped plate 29 drives the box body 23 to completely slide out of the sliding groove 22, the annular dust screen 28 with holes on the outer side wall of the packer body 1 is slid along the direction of the annular dust screen 28 with holes, and when the annular dust screen 28 is taken out of one end of the packer body 1 and a new annular dust screen 28 is installed.

Example two

Referring to fig. 1-7, a plate body 3 is disposed at one end of the U-shaped rod 25 near the annular dust-proof net 28 with holes, so as to increase the pressing area of the fingers of the user and facilitate the user to press the U-shaped rod 25. The outer side wall of the plate body 3 is provided with a threaded rod 5, the outer side wall of one end of the U-shaped rod 25, which is close to the annular dust screen 28 with holes, is provided with a threaded hole 6 matched with the threaded rod 5, and the threaded rod 5 is in threaded connection with the threaded hole 6, so that the plate body 3 and the U-shaped rod 25 can be detached, and the plate body 3 can be replaced conveniently. The outer side wall of the plate body 3 is provided with a rubber pad 4, so that the friction force between the hand of a user and the outer side wall of the plate body 3 is increased. The outer side wall of the rubber cushion 4 is provided with anti-skid patterns, so that the friction force between the hand of a user and the outer side wall of the rubber cushion 4 is further increased.

Example III

Referring to fig. 1-3, the end of the U-shaped rod 25 away from the annular dust-proof screen 28 with holes is a cone, so that a user can conveniently clamp the end of the U-shaped rod 25 away from the annular dust-proof screen 28 with the clamping groove 27.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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. A deep well frac acidizing packer comprising:

a packer body (1);

the method is characterized in that: the outer side wall of the packer body (1) is provided with a sand prevention assembly (2), and the sand prevention assembly (2) comprises:

the ring bodies (21) are symmetrically arranged on the outer side walls of the two ends of the packer body (1);

the sliding grooves (22) are symmetrically arranged on the outer side wall of the ring body (21) in pairs;

one end of the box body (23) is connected in the chute (22) in a sliding way;

an L-shaped plate (29) with one end arranged on the outer side wall of the other end of the box body (23);

the annular dustproof net (28) with holes is provided, and the through holes are penetrated by the other ends of the four L-shaped plates (29);

the through holes (26) are symmetrically arranged on the upper surface of the box body (23);

the two ends of the U-shaped rod (25) respectively penetrate through the two through holes (26);

the elastic pieces (24) are symmetrically arranged in the box body (23), and two ends of the two elastic pieces (24) are respectively connected with the inner side wall of the box body (23) and the outer side wall of the U-shaped rod (25);

the clamping groove (27) is formed in the inner side wall of the ring body (21) and communicated with the sliding groove (22), and one end, far away from the annular dust screen (28) with holes, of the U-shaped rod (25) is slidably connected into the clamping groove (27).

2. The deep well fracturing acidizing packer of claim 1, wherein: one end of the U-shaped rod (25) close to the annular dust screen (28) with holes is provided with a plate body (3).

3. The deep well fracturing acidizing packer of claim 2, wherein: the utility model discloses a novel anti-dust device is characterized in that a threaded rod (5) is arranged on the outer side wall of the plate body (3), a threaded hole (6) matched with the threaded rod (5) is formed in the outer side wall of one end of the U-shaped rod (25) close to the annular dust screen (28) with holes, and the threaded rod (5) is in threaded connection with the threaded hole (6).

4. The deep well fracturing acidizing packer of claim 3, wherein: the outer side wall of the plate body (3) is provided with a rubber pad (4).

5. The deep well fracturing acidizing packer of claim 4, wherein: the outer side wall of the rubber pad (4) is provided with anti-skid patterns.

6. The deep well fracturing acidizing packer of claim 1, wherein: one end of the U-shaped rod (25) far away from the annular dust screen (28) with the holes is a cone.