CN208669263U - A kind of packer protection structure - Google Patents
A kind of packer protection structure Download PDFInfo
- Publication number
- CN208669263U CN208669263U CN201821502079.8U CN201821502079U CN208669263U CN 208669263 U CN208669263 U CN 208669263U CN 201821502079 U CN201821502079 U CN 201821502079U CN 208669263 U CN208669263 U CN 208669263U
- Authority
- CN
- China
- Prior art keywords
- packing element
- packer
- blind hole
- extrusion ring
- inserted link
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to packer technology fields.It is designed to provide a kind of packer protection structure that can be realized stabilized seal.The technical scheme adopted by the utility model is a kind of packer protects structure; including packer body and the packing element being set in outside packer body; it is respectively arranged with extrusion ring and lower extrusion ring above and below the packing element, the anchor ring of the upper extrusion ring and lower extrusion ring is opposite with the end face of packing element；The upper surface of the packing element is evenly arranged with multiple first blind holes, and lower end surface is evenly arranged with multiple second blind holes；The lower surface of the upper extrusion ring is correspondingly arranged on more the first expansion inserted links matched with the first blind hole, and the upper surface of the lower extrusion ring is correspondingly arranged on more the second expansion inserted links matched with the second blind hole.The utility model can greatly improve the sealing performance of packer, and improve the service life of packing element.
Description
Technical field
The utility model relates to packer technology fields, and in particular to protect knot for a kind of packer of packing element
Structure.
Background technique
Packer, which refers to, to be meant with elastic sealing elements, and is insulated between various sizes tubing string and wellbore and managed whereby
Annular space between column, and completely cut off payzone, (note) liquid is produced with control, the packing element of packer is the core that packer works normally
Part, between oil pipe and casing.
Existing diffusion type packing element designs simply mostly, causes cylindrical shape only with rubber system, upper and lower side is set
It is set to scarf.For packing element when packer is set, the extruding of the wedge block by upper and lower forces packing element to expand change
Shape, so that the inner surface of packing element be forced to be close to oil pipe, outer surface knot patch casing realizes sealing.But since the stress of packing element is main
Upper and lower ends are concentrated on, stable deformation occurs for the middle part that not can guarantee packing element, causes poor sealing effect.Simultaneously as long-term
By alternate stress act on, deformation will lead to packing element fever, if the heat cannot obtain even if diverging, be easy to cause packing element old
Change, shortens the service life of packer.
Summary of the invention
The purpose of this utility model is to provide a kind of packers that can be realized stabilized seal to protect structure.
For achieving the above object, the technical scheme adopted by the utility model is a kind of packer protects structure, packet
The packing element for including packer body and being set in outside packer body is respectively arranged with extrusion ring above and below the packing element
With lower extrusion ring, the anchor ring of the upper extrusion ring and lower extrusion ring is opposite with the end face of packing element；The upper surface of the packing element is uniform
Multiple first blind holes are provided with, lower end surface is evenly arranged with multiple second blind holes；First blind hole extends to the lower part of packing element
And from top to bottom gradually become smaller, second blind hole extends to the top of packing element and gradually becomes smaller from the bottom to top, and described first is blind
Hole and the second blind hole are interlaced；The lower surface of the upper extrusion ring be correspondingly arranged on more matched with the first blind hole first
Inserted link is expanded, the upper surface of the lower extrusion ring is correspondingly arranged on more the second expansion inserted links matched with the second blind hole.
Preferably, the quantity of the quantity of first blind hole and the second blind hole is at least 8.
Preferably, the first expansion inserted link and the second expansion inserted link are made of aluminum alloy materials.
Preferably, the lower extrusion ring and packer body are affixed.
The beneficial effects of the utility model embody a concentrated reflection of, and can greatly improve the sealing performance of packer, and improve
The service life of packing element.Specifically, the utility model in use, inserted by the first expansion by the dilatancy of packing element
Bar is inserted into the first blind hole, the second expansion inserted link is inserted into the second blind hole and constitutes；With it is traditional to packing element upper and lower end face pressure
Mode is compared, and can guarantee there is more stable expansion, good airproof performance in the middle part of packing element；Meanwhile the first expansion inserted link and second swollen
Swollen inserted link gos deep into inside packing element, can also play the booster action to packing element, improves the performance that packing element bears alternate stress.Separately
It outside, can be by the heat derives inside packing element, to effectively slow down glue by the first expansion inserted link and the second expansion inserted link
The aging speed of cylinder, improves its service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of packing element；
Fig. 3 is the schematic diagram of internal structure after packing element expansion.
Specific embodiment
A kind of packer in conjunction with shown in Fig. 1-3 protects structure, including packer body 1 and is set in packer body 1
The packer body 1 of market routine can be used in outer packing element 2, the packer body 1, and packing element 2 is made of rubber, this is existing
There is technology, details are not described herein again.
As shown in Figure 1-3, extrusion ring 3 and lower extrusion ring 4 are respectively arranged with above and below the packing element 2, it is described
The anchor ring of upper extrusion ring 3 and lower extrusion ring 4 is opposite with the end face of packing element 2.The upper surface of the packing element 2 is evenly arranged with multiple
One blind hole 5, lower end surface are evenly arranged with multiple second blind holes 6.In order to improve the uniformity of the expansion of packing element 2, first blind hole 5
Quantity and the second blind hole 6 quantity be at least 8.Certainly, quantity is more, more uniform when being squeezed compression swelling.And general institute
It states the first blind hole 5 and the second blind hole 6 is interlaced.
First blind hole 5 extends to the lower part of packing element 2 and from top to bottom gradually becomes smaller, and second blind hole 6 extends to
It the top of packing element 2 and gradually becomes smaller from the bottom to top, the lower surface of the upper extrusion ring 3 is correspondingly arranged on more and the first blind hole 5
The the first expansion inserted link 7 matched, the upper surface of the lower extrusion ring 4 is correspondingly arranged on more and matches with the second blind hole 6
Second expansion inserted link 8.The shape of the first expansion inserted link 7 is identical as the first blind hole 5, and size is slightly larger than the first blind hole 5, together
The shape of reason, the second expansion inserted link 8 is also identical as the second blind hole 6, and size is slightly larger than the second blind hole 6.
In use, the dilatancy of packing element 2 is inserted into the first blind hole 5 by the first expansion inserted link 7 to the utility model
It is constituted in interior, the second second blind hole of the expansion insertion of inserted link 86；Compared with traditional mode to press to 2 upper and lower end face of packing element, energy
Enough guarantee that there is more stable expansion, good airproof performance in the middle part of packing element 2；Meanwhile first expands inserted link 7 and the second expansion inserted link 8 deeply
Enter inside packing element 2, can also play the booster action to packing element 2, improves the performance that packing element 2 bears alternate stress.In addition, logical
It crosses the first expansion inserted link 7 and the second expansion inserted link 9 can be by the heat derives inside packing element 2, to effectively slow down packing element 2
Aging speed, improve its service life.In order to improve the export speed of heat, the first expansion inserted link 7 and second is swollen
Swollen inserted link 8 is preferably made of aluminum alloy materials.Its respectively with upper extrusion ring 3 and the integrated mold casting forming of lower extrusion ring 4.It is general described
Lower extrusion ring 4 and packer body 1 are affixed.
Claims (4)
1. a kind of packer protects structure, including packer body (1) and it is set in the packing element (2) of packer body (1) outside,
It is characterized in that: being respectively arranged with extrusion ring (3) and lower extrusion ring (4), the upper extruding above and below the packing element (2)
The anchor ring of ring (3) and lower extrusion ring (4) is opposite with the end face of packing element (2)；The upper surface of the packing element (2) is evenly arranged with multiple
First blind hole (5), lower end surface are evenly arranged with multiple second blind holes (6)；First blind hole (5) extends under packing element (2)
It portion and from top to bottom gradually becomes smaller, second blind hole (6) extends to the top of packing element (2) and gradually becomes smaller from the bottom to top, institute
It states the first blind hole (5) and the second blind hole (6) is interlaced；The lower surface of the upper extrusion ring (3) is correspondingly arranged on more and the
The first expansion inserted link (7) that one blind hole (5) matches, the upper surface of the lower extrusion ring (4) is correspondingly arranged on more and second
The second expansion inserted link (8) that blind hole (6) matches.
2. packer according to claim 1 protects structure, it is characterised in that: the quantity of first blind hole (5) and the
The quantity of two blind holes (6) is at least 8.
3. packer according to claim 1 protects structure, it is characterised in that: first expansion inserted link (7) and second
Expansion inserted link (8) is made of aluminum alloy materials.
4. packer according to claim 1 protects structure, it is characterised in that: the lower extrusion ring (4) and packer master
Body (1) is affixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821502079.8U CN208669263U (en) | 2018-09-13 | 2018-09-13 | A kind of packer protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821502079.8U CN208669263U (en) | 2018-09-13 | 2018-09-13 | A kind of packer protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208669263U true CN208669263U (en) | 2019-03-29 |
Family
ID=65842568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821502079.8U Expired - Fee Related CN208669263U (en) | 2018-09-13 | 2018-09-13 | A kind of packer protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208669263U (en) |
-
2018
- 2018-09-13 CN CN201821502079.8U patent/CN208669263U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190329 Termination date: 20190913 |