CN205382912U - Automatic sliding sleeve device under oil gas development well - Google Patents
Automatic sliding sleeve device under oil gas development well Download PDFInfo
- Publication number
- CN205382912U CN205382912U CN201620136142.5U CN201620136142U CN205382912U CN 205382912 U CN205382912 U CN 205382912U CN 201620136142 U CN201620136142 U CN 201620136142U CN 205382912 U CN205382912 U CN 205382912U
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- China
- Prior art keywords
- outer tube
- piston
- groove
- lid
- interior pipe
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Abstract
The utility model discloses an automatic sliding sleeve device under oil gas development well, it contains outer tube (1), and this outer tube (1) whole be hollow tubular structure, and axial is provided with one inner tube (2) inside it, the both ends of outer tube (1) are provided with preceding sealed lid (3) and rear seal cover (4) rather than seals and docking respectively, the middle part of preceding sealed lid (3) and rear seal cover (4) is seted up confession inner tube (2) respectively and is sealed the jack worn out, preceding sealed lid (3) and inner tube (2) between be provided with one with outer tube (1) inside communicating first cavity a. The utility model discloses simple structure, the gas tightness is better, and whole gas tightness is higher, can realize whole sliding sleeve device switch adjustable purpose simultaneously, need not to be equipped with special mechanical switch instrument, has reduced the complexity and the fault rate of equipment, especially is fit for the the development process of a plurality of different oil gas pressure payzones.
Description
Technical field
The utility model relates to the processing and manufacturing field of oil and gas development relevant device, it is primarily related to the automatic sliding bush apparatus in a kind of oil and gas development down-hole.
Background technology
The automatic sliding bush apparatus in existing oil and gas development down-hole, it it is all the folding realizing automatically adjusting piston by spring and the internal gases at high pressure poured in advance as power, thus the purpose altered mutually of the pressure of the interference and high-low pressure payzone stopping different pressures series of strata, and once internal pre-inflation occurs that leakage or spring follow the string, what lose its entirety often cannot work, thus should have effect.
Utility model content
This utility model purpose is in that to solve above-mentioned technical problem, it is provided that a kind of reasonable in design, and simple in construction, and the method being easily achieved solve the compression fast automatic docking of air and separate.
nullIn order to solve problem existing in background technology，It comprises outer tube 1，The tubular structure of this outer tube 1 generally hollow，An interior pipe 2 axially it is provided with inside it，The two ends of described outer tube 1 are respectively arranged with front sealing theing seal against docking and cover 3 and rear sealing lid 4，The described front middle part sealing lid 3 and rear sealing lid 4 offers respectively and seals, for interior pipe 2, the jack passed，Described front sealing is provided with the first cavity a that communicates internal with outer tube 1 between lid 3 and interior pipe 2，Described rear sealing is provided with the second cavity b that communicates internal with outer tube 1 between lid 4 and interior pipe 2，Described before seal lid 3 side offer one with the first cavity a air inlet 5 communicated，The outer wall of said inner tube 2 offers a piston groove，A piston 6 it has been tightly fastened in this piston groove，The periphery of described piston 6 is in close contact with the inner headed face of outer tube 1，A spring 7 it is arranged with between described interior pipe 2 and outer tube 1，One end of this spring 7 seals the end of lid 3 before withstanding on，Its other end withstands on the end of piston 6，The outside of one end that described outer tube 1 seals lid 4 after being located close to offers first groove 8 identical with its inside，Described interior pipe 2 offers the second groove 9 communicated with the second cavity b.
Described piston 6 is clamped on piston groove by being screwed in the nut 10 at interior pipe 2 periphery place.
The particular location of described first groove 8 is, when sealing the end of lid 4 after one end of piston 6 withstands on completely, the periphery of described piston 6 blocks the first groove 8 completely, and after the venthole of interior pipe 2 is blocked, described piston 6 can fully pass over the first groove 8 under the drive of interior pipe 2, makes the first groove 8 can communicate with the second cavity b.
The beneficial effects of the utility model are mainly reflected in: simple in construction, air-tightness is better, overall air-tightness is higher, whole sliding bush apparatus can be realized simultaneously and switch adjustable purpose, without being equipped with special mechanical switch instrument, reduce complexity and the fault rate of equipment, be especially suitable for the development process of multiple different oil-air pressure payzone.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described.
nullReferring to Fig. 1，This detailed description of the invention is to be achieved by the following technical solutions，It comprises outer tube 1，The tubular structure of this outer tube 1 generally hollow，An interior pipe 2 axially it is provided with inside it，The two ends of described outer tube 1 are respectively arranged with front sealing theing seal against docking and cover 3 and rear sealing lid 4，The described front middle part sealing lid 3 and rear sealing lid 4 offers respectively and seals, for interior pipe 2, the jack passed，Described front sealing is provided with the first cavity a that communicates internal with outer tube 1 between lid 3 and interior pipe 2，Described rear sealing is provided with the second cavity b that communicates internal with outer tube 1 between lid 4 and interior pipe 2，Described before seal lid 3 side offer one with the first cavity a air inlet 5 communicated，The outer wall of said inner tube 2 offers a piston groove，A piston 6 it has been tightly fastened in this piston groove，The periphery of described piston 6 is in close contact with the inner headed face of outer tube 1，A spring 7 it is arranged with between described interior pipe 2 and outer tube 1，One end of this spring 7 seals the end of lid 3 before withstanding on，Its other end withstands on the end of piston 6，The outside of one end that described outer tube 1 seals lid 4 after being located close to offers first groove 8 identical with its inside，Described interior pipe 2 offers the second groove 9 communicated with the second cavity b.
Described piston 6 is clamped on piston groove by being screwed in the nut 10 at interior pipe 2 periphery place.
The particular location of described first groove 8 is, when sealing the end of lid 4 after one end of piston 6 withstands on completely, the periphery of described piston 6 blocks the first groove 8 completely, and after the venthole of interior pipe 2 is blocked, described piston 6 can fully pass over the first groove 8 under the drive of interior pipe 2, makes the first groove 8 can communicate with the second cavity b.
Having the advantages that of this detailed description of the invention: simple in construction, air-tightness is better, overall air-tightness is higher, whole sliding bush apparatus can be realized simultaneously and switch adjustable purpose, without being equipped with special mechanical switch instrument, reduce complexity and the fault rate of equipment, be especially suitable for the development process of multiple different oil-air pressure payzone.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although this utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that, the technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature carries out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of this utility model.
Claims (3)
- null1. the automatic sliding bush apparatus in oil and gas development down-hole，It is characterized in that it comprises outer tube (1)，The tubular structure of this outer tube (1) generally hollow，Axially it is provided with in one inside it and manages (2)，The two ends of described outer tube (1) are respectively arranged with front sealing theing seal against docking and cover (3) and rear sealing lid (4)，The described front middle part sealing lid (3) and rear sealing lid (4) offers respectively and seals, for interior pipe (2), the jack passed，Described front sealing is provided with the first cavity a that communicates internal with outer tube (1) between lid (3) and interior pipe (2)，Described rear sealing is provided with the second cavity b that communicates internal with outer tube (1) between lid (4) and interior pipe (2)，The side sealing lid (3) before described offers an air inlet (5) communicated with the first cavity a，The outer wall of said inner tube (2) offers a piston groove，A piston (6) it has been tightly fastened in this piston groove，The inner headed face of the periphery of described piston (6) and outer tube (1) is in close contact，A spring (7) it is arranged with between described interior pipe (2) and outer tube (1)，One end of this spring (7) seals the end of lid (3) before withstanding on，Its other end withstands on the end of piston (6)，The outside of one end that described outer tube (1) seals lid (4) after being located close to offers first groove (8) identical with its inside，Described interior pipe (2) offers the second groove (9) communicated with the second cavity b.
- 2. the automatic sliding bush apparatus in a kind of oil and gas development down-hole according to claim 1, it is characterised in that described piston (6) is clamped on piston groove by being screwed in the nut (10) at interior pipe (2) periphery place.
- 3. the automatic sliding bush apparatus in a kind of oil and gas development down-hole according to claim 1, it is characterized in that the particular location of described first groove (8) is, when sealing the end of lid (4) after one end of piston (6) withstands on completely, the periphery of described piston (6) blocks the first groove (8) completely, and after the venthole of interior pipe (2) is blocked, described piston (6) can fully pass over the first groove (8) under the drive of interior pipe (2), makes the first groove (8) can communicate with the second cavity b.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136142.5U CN205382912U (en) | 2016-02-21 | 2016-02-21 | Automatic sliding sleeve device under oil gas development well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620136142.5U CN205382912U (en) | 2016-02-21 | 2016-02-21 | Automatic sliding sleeve device under oil gas development well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205382912U true CN205382912U (en) | 2016-07-13 |
Family
ID=56350764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620136142.5U Expired - Fee Related CN205382912U (en) | 2016-02-21 | 2016-02-21 | Automatic sliding sleeve device under oil gas development well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205382912U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441395A (en) * | 2019-01-08 | 2019-03-08 | 成都百胜野牛科技有限公司 | A kind of preventer and oil/gas well |
-
2016
- 2016-02-21 CN CN201620136142.5U patent/CN205382912U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109441395A (en) * | 2019-01-08 | 2019-03-08 | 成都百胜野牛科技有限公司 | A kind of preventer and oil/gas well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20180221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |