CN208364092U - The hydraulic deblocking packer of hydraulic setting - Google Patents
The hydraulic deblocking packer of hydraulic setting Download PDFInfo
- Publication number
- CN208364092U CN208364092U CN201820586427.8U CN201820586427U CN208364092U CN 208364092 U CN208364092 U CN 208364092U CN 201820586427 U CN201820586427 U CN 201820586427U CN 208364092 U CN208364092 U CN 208364092U
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- Prior art keywords
- valve
- hydraulic
- seat
- deblocking
- axial hole
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Abstract
The utility model relates to a kind of hydraulic deblocking packers of hydraulic setting.Mainly solve the problems, such as that existing packer is shortened ball-and-seat service life, packing element and easily burst due to setting and unsealing by a ball-and-seat completion.It is characterized by: top connection (1) bottom outside is connected with rubber tube seat (8), axial hole A(15 is had on the side wall of the top connection (1)) and axial hole B(16), wherein axial hole A(15) internal be equipped with set valve (2), axial hole B(16) in connect radial hole, radial hole be built-in with deblocking valve (6)；Upper rubber tube seat (8) internal whorl connects iron core (9), and packing element (10) are equipped between iron core (9) and upper rubber tube seat (8).The hydraulic deblocking packer of the hydraulic setting is set and deblocking is divided into two ball-and-seats, the service life of extended ball-and-seat, and packing element sliding expansion avoids packing element from bursting.
Description
Technical field
The utility model relates to oilfield, specifically a kind of hydraulic deblocking packer of hydraulic setting.
Background technique
Common packer setting and deblocking are completed by a ball-and-seat on oil field at present, so that the service life of ball-and-seat contracts
It is short, and packing element expansion is not sliding, makes the easy instant exploding of packing element.
Summary of the invention
In order to overcome existing packer to shorten ball-and-seat service life, glue by a ball-and-seat completion due to setting and unsealing
The deficiency that cylinder easily bursts, the utility model provide a kind of hydraulic deblocking packer of hydraulic setting, the hydraulic deblocking envelope of the hydraulic setting
It is set every device and deblocking is divided into two ball-and-seats, the service life of extended ball-and-seat, packing element sliding expansion avoids packing element quick-fried
It splits.
The technical solution of the utility model is: a kind of hydraulic deblocking packer of hydraulic setting, including top connection, lower contact,
Central tube is connected between top connection and lower contact, the top connection bottom outside is connected with rubber tube seat, the top connection
Axial hole A and axial hole B are had on side wall, is wherein equipped with inside axial hole A and sets valve, and connection is radial in axial hole B
Hole, radial hole are built-in with deblocking valve；The upper rubber tube seat internal whorl connects iron core, is equipped with glue between iron core and upper rubber tube seat
Cylinder；The lower contact is fixed with lower rubber cylinder seat by screw, and the packing element lower end is located in lower rubber cylinder seat.
The valve bottom that sets is fixed by valve is stifled, and valve is stifled and sets between valve equipped with compression spring A.
Pressure spring B is equipped between the deblocking valve and top connection outer wall, and the other end for unsealing valve is consolidated by fixing screws
It is fixed.
The utility model has the following beneficial effects: the packer setting and deblocking are divided into two due to taking above scheme
A ball-and-seat can extend the service life of ball-and-seat；When setting deblocking, packing element sliding expansion, bearing capacity is high, meanwhile, it adopts
It is expanded with sliding extension, packing element can be made in setting moment, alleviate excessively high setting pressure, avoid the impact force mistake to packing element
Height guarantees the sealing performance of packer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional view of the A-A along Fig. 1.
1- top connection in figure, 2- set valve, and 3- compression spring A, 4- valve is stifled, 5- fixing screws, and 6- unseals valve, 7- pressure spring
The upper rubber tube seat of B, 8-, 9- iron core, 10- packing element, 11- central tube, 12- lower rubber cylinder seat, 13- screw, 14- lower contact, 15- axial hole
A, 16- axial hole, 17- inlet opening.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Fig. 1, Fig. 2, a kind of hydraulic deblocking packer of hydraulic setting, including top connection 1, lower contact 14, top connection 1
Central tube 11 is connected between lower contact 14,1 bottom outside of top connection is connected with rubber tube seat 8, the top connection 1
Axial hole A15 and axial hole B16 are had on side wall, is wherein equipped with inside axial hole A15 and sets valve 2, on axial hole A15
Portion by being communicated between inlet opening 17 and 1 inner wall of top connection, it is described set 2 bottom of valve blocked up by valve it is 4 fixed, and valve stifled 4 with
It sets and is equipped with compression spring A 3 between valve 2.In its natural state, valve 2 is set by the tension force effect of pressure spring A3, and top withstands on axial direction
On the hole wall of hole A15, close axial hole A15.A radial hole is connected in the axial hole B16, the radial hole is built-in with
Valve 6 is unsealed, unseals and is equipped with pressure spring B7 between valve 6 and 1 outer wall of top connection, and unseals the other end of valve 6 by fixing screws 5
It is fixed.
8 internal whorl of upper rubber tube seat connects iron core 9, is equipped with packing element 10 between iron core 9 and upper rubber tube seat 8, iron core 9 with
It is matched between packing element 10 by annular groove.The lower contact 14 is fixed with lower rubber cylinder seat 12, lower rubber cylinder seat 12 by screw 13
Internal whorl connects second segment iron core, and 10 lower end of packing element is located in lower rubber cylinder seat 12,10 lower part of packing element and second segment iron core
It is matched by annular groove.
It when setting, is suppressed out of oil pipe, liquid enters by the inlet opening 17 in top connection 1 sets valve 2, sets valve
2 compression press spring A3, open channel, and liquid enters between packing element 10 and central tube 11 through the axial hole A15 where setting valve 2
Gap expands packing element 10.When pressure balance in the fluid pressure and central tube 11 between packing element 10 and central tube 11, set all
That 2 is closed under the action of compression spring A 3, and packer is in running order.
When well-flushing, oil pipe outlet emptying is injected well-flushing pressure fluid in oil, casing annulus, is unsealed under pressure all
That 6 is opened, and packing element 10 restores to the original state under elastic reaction, and flushing fluid passes through step by step, is finally returned by the ball-and-seat of oil pipe bottom
Well-flushing is completed on ground.
It when deblocking, is suppressed by oil, casing annulus, packing element 10 reinstatement state identical as well-flushing principle, completes deblocking.
Claims (3)
1. a kind of hydraulic deblocking packer of hydraulic setting, including top connection (1), lower contact (14), top connection (1) and lower contact
(14) central tube (11) are connected between, it is characterised in that: top connection (1) bottom outside is connected with rubber tube seat (8), institute
State and have axial hole A(15 on the side wall of top connection (1)) and axial hole B(16), wherein axial hole A(15) internal it is equipped with seat
Seal valve (2), axial hole B(16) in connect radial hole, radial hole be built-in with deblocking valve (6)；The upper rubber tube seat (8) is internal
It is threadedly coupled iron core (9), packing element (10) is equipped between iron core (9) and upper rubber tube seat (8)；The lower contact (14) passes through screw
(13) it is fixed with lower rubber cylinder seat (12), packing element (10) lower end is located in lower rubber cylinder seat (12).
2. the hydraulic deblocking packer of hydraulic setting according to claim 1, it is characterised in that: described to set valve (2) bottom
Portion blocks up (4) by valve and fixes, and valve blocks up (4) and sets and is equipped with compression spring A (3) between valve (2).
3. the hydraulic deblocking packer of hydraulic setting according to claim 2, it is characterised in that: the deblocking valve (6) with
Pressure spring B(7 is equipped between top connection (1) outer wall), and the other end for unsealing valve (6) is fixed by fixing screws (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820586427.8U CN208364092U (en) | 2018-04-23 | 2018-04-23 | The hydraulic deblocking packer of hydraulic setting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820586427.8U CN208364092U (en) | 2018-04-23 | 2018-04-23 | The hydraulic deblocking packer of hydraulic setting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208364092U true CN208364092U (en) | 2019-01-11 |
Family
ID=64932454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820586427.8U Active CN208364092U (en) | 2018-04-23 | 2018-04-23 | The hydraulic deblocking packer of hydraulic setting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208364092U (en) |
-
2018
- 2018-04-23 CN CN201820586427.8U patent/CN208364092U/en active Active
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