CN205778710U - A kind of packer - Google Patents
A kind of packer Download PDFInfo
- Publication number
- CN205778710U CN205778710U CN201620520454.6U CN201620520454U CN205778710U CN 205778710 U CN205778710 U CN 205778710U CN 201620520454 U CN201620520454 U CN 201620520454U CN 205778710 U CN205778710 U CN 205778710U
- Authority
- CN
- China
- Prior art keywords
- packing element
- central canal
- joint sleeve
- overcoat
- piston
- 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.)
- Active
Links
- 238000012856 packing Methods 0.000 claims abstract description 53
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 239000003292 glue Substances 0.000 claims 1
- 238000005987 sulfurization reaction Methods 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 abstract description 2
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 206010016766 flatulence Diseases 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of packer, comprising: top connection, central canal, limited cap, overcoat, piston, lock dog, hydraulic oil, upper joint sleeve, lock ring, upper support ring, one end and upper joint sleeve abutting contact and the outer packing element outside central canal, interior packing element and the lower joint sleeve of outer packing element other end abutting contact, the lower support ring being at least partially disposed between lower joint sleeve and central canal and the lower contact being connected with central canal bottom being coated with by outer packing element.In in this utility model, the face length of packing element and outer packing element is long, and the adaptation to pit shaft is very competent；There is the function of lossless anchoring string；During going into the well, prevent overcoat play, protection deblocking nail so that it is not by shearing force.
Description
Technical field
This utility model relates to a kind of packer.
Background technology
In recent years, owing to continually developing of high benefit oil gas field and high-grade oil reservoir reduce day by day, countries in the world
Rapidly increasing the demand of oil, exploration and development simultaneously and drilling technology level improve constantly, due to corrosion
Etc. reason, damaging often occurs in oil reservoir upper sleeve.The exploitation in oil field of casing failure well strong influence.
The well that conventional packer damages at set, set becomes, interlayer is thin sets success rate low, easily block during deblocking
Boring, accident rate is high.
Utility model content
For above not enough, the purpose of this utility model is to provide a kind of packer.
The technical solution of the utility model is: a kind of packer, comprising: the top connection of built-in tubing round thread,
Overcoat that the central canal being connected with top connection, the limited cap being loaded in top connection are connected with limited cap, it is loaded on
Piston, the lock dog being loaded between piston and overcoat on central canal and inside overcoat, be loaded on by overcoat,
Upper joint sleeve that hydraulic oil in the cavity that central canal, piston three surround is connected with overcoat, it is loaded on overcoat
In and be close to the lock ring of upper joint sleeve, the upper support ring being at least partially disposed between upper joint sleeve and central canal,
One end and upper joint sleeve abutting contact and the hose lining being positioned at the outer packing element outside central canal, being coated with by outer packing element
Cylinder and the lower joint sleeve of outer packing element other end abutting contact, be at least partially disposed at lower joint sleeve and central canal it
Between lower support ring and the lower contact that is connected with central canal bottom.
On the basis of technique scheme, farther include following attached technical scheme:
Described lock ring and piston are provided with the one-way lock tooth cooperated therewith, it is ensured that piston will not after putting in place
It is reversed phenomenon.
Described upper joint sleeve, upper support ring, interior packing element, outer packing element, lower support ring and lower joint sleeve sulfur
Turning to one, outer packing element hardness described in the hardness ratio of wherein said interior packing element is little, and interior packing element has the closeest
Feng Xing, resistance to ag(e)ing and less permanent deformation；Outer packing element hardness is higher, can limit the outer rim chi of interior packing element
Very little, prevent the undue tympanites of interior packing element, in protection, packing element is from damage；Described outer packing element outer rim circumferential direction sets
There are several grooves, are conducive to the uniform expansion of outer packing element.
Described central canal has several inlet openings, and described outer is arranged with the some grooves coordinated with lock dog,
Wherein said lock dog is placed in groove, and the step and limited cap by piston is spacing.
Described top connection is provided with step, limits the downward storke of limited cap, prevents interior packing element and outer packing element
Overdistension.
Its also include connecting limited cap and top connection deblocking nail, be connected piston and top connection set nail, with
And for the potted component sealed.
Described potted component is set on piston, and seals with inside central canal and overcoat respectively.
Due to the utilization of technique scheme, this utility model compared with prior art has the advantage that
1, the face length of interior packing element and outer packing element is long, and the adaptation to pit shaft is very competent；
2, there is the function of lossless anchoring string；
3, during going into the well, overcoat play, protection deblocking nail so that it is not by shearing force are prevented.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment:
Fig. 1 is sectional view of the present utility model.
Detailed description of the invention
Embodiment: with reference to shown in Fig. 1, this utility model provides the specific embodiment of a kind of packer, its
Including: central canal 14 that the top connection 1 of built-in tubing round thread is connected with top connection 1, it is loaded on top connection 1
On limited cap 2, connect limited cap 2 and top connection 2 unseal the overcoat that nail 3 is connected with limited cap 2
8, the piston 7 that is loaded on central canal 14, setting nail 5, being loaded on piston of piston 7 and top connection 1 is connected
Lock dog 4 between 7 and overcoat 8, it is loaded on and is enclosed by overcoat 8, central canal 14, piston 7, upper support ring 13
On hydraulic oil 9 in the cavity become, blocking overcoat 8, hydraulic oil 9 enters plug 10 and the overcoat 8 of passage
The upper joint sleeve 12 that connects, be loaded on overcoat 8 in and be close to the lock ring 11 of upper joint sleeve 12, at least part of position
Upper support ring 13, one end and upper joint sleeve 12 abutting contact between upper joint sleeve 12 and central canal 14
And it is positioned at the outer packing element 15 outside central canal 14, the packing element 16 being coated with by outer packing element 15 and outer packing element
The lower joint sleeve 18 of 15 other end abutting contact, be at least partially disposed at lower joint sleeve 18 and central canal 14 it
Between the lower contact 19 that is connected with central canal 14 bottom of lower support ring 17 and for the sealing unit sealed
Part 6.
Be machined with the one-way lock tooth cooperated therewith on lock ring 11 and piston 7 respectively, wherein lock ring 11 with
One-way movement between piston 7, it is ensured that piston 7 will not be reversed phenomenon after putting in place.
Upper joint sleeve 12, upper support ring 13, interior packing element 16, outer packing element 15, lower support ring 17, lower company
Female connector 18 all vulcanizes and is integrated.
Interior packing element 16 is different from outer packing element 15 hardness, and interior packing element 16 has better seal, ageing-resistant
Property and less permanent deformation；Outer packing element 15 hardness is higher, can limit the physical dimension of interior packing element 16, anti-
In the undue tympanites of packing element 16 in only, and protection, packing element 16 is from damage, outer packing element 15 outer rim circumferential direction
It is provided with several grooves, is conducive to the uniform expansion of outer packing element 15.
The same depth of central canal 14 has several inlet openings.The same depth of overcoat 8 has some grooves,
Coordinate with lock dog 4.Lock dog 4 is placed in overcoat 8 groove, spacing by piston 7 step and limited cap 2.By
This is during this utility model is gone into the well, and prevents overcoat 8 play, protection deblocking nail 3 so that it is do not sheared
Power.
Top connection 1 is provided with step, limits the downward storke of limited cap 2, prevents interior packing element 16 and outer
The overdistension of packing element 15.
This utility model is connected on tubing string, under enter precalculated position.
Inject highly pressurised liquid from oil pipe, highly pressurised liquid by the inlet opening on central canal 14 enter piston 7 with
Gap between top connection 1.Highly pressurised liquid acts on piston 7, and piston 7 is cut off after setting nail 5 descending,
Lock dog 4 is released.The one-way lock tooth that piston 7 continues traveling downwardly to piston 7 engages with lock ring 11.With this
Meanwhile, packing element 16 and central canal in hydraulic oil enters along the gap between central canal 14 and upper support ring 13
Gap between 14, hydraulic oil 9 acts on interior packing element 16, and interior packing element 16 drives outer packing element 15 footpath simultaneously
To expansion, outer packing element 15 blocks the annular space between oil pipe and sleeve pipe.
Under press joint 1, deblocking nail 3 is cut off.On put on joint 1, top connection 1 drives central canal 14,
And driving limited cap 2, overcoat 8, upper joint sleeve 12 etc. successively, whole instrument unseals.
Certainly above-described embodiment is only for illustrating technology of the present utility model design and feature, its object is to allow ripe
The people knowing technique will appreciate that content of the present utility model and implements according to this, can not limit this reality with this
With novel protection domain.All equivalence changes done according to the spirit of this utility model main technical schemes
Change or modify, all should contain within protection domain of the present utility model.
Claims (7)
1. a packer, it is characterised in that comprising: the top connection of built-in tubing round thread and top connection
Overcoat that the central canal connected, the limited cap that is loaded in top connection are connected with limited cap, it is loaded on central canal
And piston, the lock dog being loaded between piston and overcoat inside overcoat, be loaded on by overcoat, central canal,
Upper joint sleeve that hydraulic oil in the cavity that piston three surrounds is connected with overcoat, be loaded on overcoat in and be close to
The lock ring of upper joint sleeve, the upper support ring being at least partially disposed between upper joint sleeve and central canal, one end are with upper
Adapter sleeve abutting contact and be positioned at the outer packing element outside central canal, the packing element being coated with by outer packing element and outer glue
The lower joint sleeve of cylinder other end abutting contact, the lower support that is at least partially disposed between lower joint sleeve and central canal
Ring and the lower contact being connected with central canal bottom.
2. according to a kind of packer described in claim 1, it is characterised in that: described lock ring and piston
It is provided with the one-way lock tooth cooperated therewith.
3. according to a kind of packer described in claim 1, it is characterised in that: described upper joint sleeve,
Upper support ring, interior packing element, outer packing element, lower support ring and lower joint sleeve sulfuration are integrated, wherein said
Described in the hardness ratio of interior packing element, outer packing element hardness is little.
4. according to a kind of packer described in claim 1, it is characterised in that: described central canal has
Several inlet openings, and described outer it is arranged with the some grooves coordinated with lock dog, wherein said lock dog is placed in recessed
In groove, and the step and limited cap by piston is spacing.
5. according to a kind of packer described in claim 1, it is characterised in that: set in described top connection
There is step.
6. according to a kind of packer described in claim 1 or 2 or 3 or 4 or 5, it is characterised in that also
Including connecting the deblocking nail of limited cap and top connection, being connected piston and follow closely and for close with setting of top connection
The potted component of envelope.
7. according to a kind of packer described in claim 6, it is characterised in that: described potted component is sheathed
On piston, and seal with inside central canal and overcoat respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620520454.6U CN205778710U (en) | 2016-05-31 | 2016-05-31 | A kind of packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620520454.6U CN205778710U (en) | 2016-05-31 | 2016-05-31 | A kind of packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778710U true CN205778710U (en) | 2016-12-07 |
Family
ID=58136608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620520454.6U Active CN205778710U (en) | 2016-05-31 | 2016-05-31 | A kind of packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778710U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043217A (en) * | 2019-05-14 | 2019-07-23 | 淮安市井神钻采机具有限公司 | A kind of more sealings are corrosion-resistant to look for leak stopping one production packer |
-
2016
- 2016-05-31 CN CN201620520454.6U patent/CN205778710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043217A (en) * | 2019-05-14 | 2019-07-23 | 淮安市井神钻采机具有限公司 | A kind of more sealings are corrosion-resistant to look for leak stopping one production packer |
| CN110043217B (en) * | 2019-05-14 | 2021-03-05 | 淮安市井神钻采机具有限公司 | Multi-seal corrosion-resistant finding and plugging integrated oil extraction packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |