CN205330597U - Sealing device for oil recovery - Google Patents
Sealing device for oil recovery Download PDFInfo
- Publication number
- CN205330597U CN205330597U CN201620119936.0U CN201620119936U CN205330597U CN 205330597 U CN205330597 U CN 205330597U CN 201620119936 U CN201620119936 U CN 201620119936U CN 205330597 U CN205330597 U CN 205330597U
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- connector
- sealing washer
- main body
- cavity
- main part
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Abstract
The utility model relates to a sealing device for oil recovery, its technical scheme is: press cover, toper sealing washer, main part including pressing the cap, going up, push down set, O appears sealing washer, sealing washer, connector, the sub -unit connection wellhead assembly of connector, the upper portion of connector be equipped with toroidal cavity, the upper portion connection subject of connector, the polished rod passes main part and connector connection wellhead assembly, the toroidal cavity of connector in be equipped with the sealing washer and push down the cover, push down and be equipped with O shape sealing washer between cover and the connector, the inside of main part be equipped with the toper cavity, be equipped with the toper sealing washer in the toper cavity, the upper portion of main part is equipped with presses the cover and presses the cap, the beneficial effects of the utility model are that: the device simple structure, with low costs has reduced downhole accident's emergence, has improved the oil field production benefit.
Description
Technical field
This utility model relates to a kind of oil production equipment, particularly to one oil recovery sealing device。
Background technology
Current China's major part oil field has been enter into the mechanical oil recovery phase, and capital equipment used in mechanical oil recovery is sucker rod pumping equipment。According to relevant statistics, pumping well with pole accounts for more than the 90% of mechanical oil well sum, and more than the 98% of its well mouth sealing device all adopts conventional polish rod seal device in pumping well with pole。Due to the defect in structure, conventional polish rod seal device exposes many defects in applying at the scene, and the crash rate of sealing ring is higher, and during oil extraction operation, rate is low。
Summary of the invention
The purpose of this utility model is aiming at the drawbacks described above that prior art exists, it is provided that a kind of oil recovery sealing device。
Its technical scheme is: include pressure cap, upper gland, conical seal ring, main body, lower gland, O-ring seals, sealing ring, connector, the bottom of connector connects wellhead assembly, the top of described connector is provided with toroidal cavity, the top of described connector connects main body, polished rod connects wellhead assembly through main body and connector, sealing ring and lower gland it is provided with in the toroidal cavity of described connector, it is provided with O-ring seals between described lower gland and connector, the inside of described main body is provided with conical cavity, conical seal ring it is provided with in conical cavity, the top of main body is provided with gland and pressure cap。
Being provided with volute spring set between above-mentioned lower gland and connector, the inside of volute spring set is provided with volute spring。
The beneficial effects of the utility model are: can effectively prevent the appearance of blowout phenomenon, the timely pressure release when blowout, thus avoiding the waste of oil and the pollution of environment, it is able to ensure that personal security simultaneously, the inside of main body is provided with conical cavity, conical seal ring it is provided with in conical cavity, realize sealing, connector bottom and wellhead assembly clamp connection, body top is cone annular seal space, pressure cap compresses one group of conical seal ring by gland and reaches the purpose of sealing wellhead, by the lower thread extruded cylindrical blowout prevention sealing ring of main body, control blowout, this apparatus structure is simple, cost is low, decrease the generation of down-hole accident, improve oil field productivity effect。
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model；
Accompanying drawing 2 is the structural representation of volute spring set；
In upper figure: pressure cap 1, upper gland 2, conical seal ring 3, main body 4, lower gland 5, O-ring seals 6, sealing ring 7, connector 8, polished rod 9, volute spring set 10。
Detailed description of the invention
In conjunction with accompanying drawing 1-2, the utility model will be further described:
This utility model includes pressure cap 1, upper gland 2, conical seal ring 3, main body 4, lower gland 5, O-ring seals 6, sealing ring 7, connector 8, the bottom of connector 8 connects wellhead assembly, the top of described connector 8 is provided with toroidal cavity, the top of described connector 8 connects main body 4, polished rod 9 connects wellhead assembly through main body 4 and connector 8, sealing ring 7 and lower gland 5 it is provided with in the toroidal cavity of described connector 8, it is provided with O-ring seals 6 between described lower gland 5 and connector 8, the inside of described main body 4 is provided with conical cavity, conical seal ring 3 it is provided with in conical cavity, the top of main body 4 is provided with gland 2 and pressure cap 1。
Being provided with volute spring set 10 between above-mentioned lower gland 5 and connector 8, the inside of volute spring set 10 is provided with volute spring。
Operation principle: connector bottom and wellhead assembly clamp connection, body top is cone annular seal space, pressure cap compresses one group of conical seal ring by gland and reaches the purpose of sealing wellhead, by the lower thread extruded cylindrical blowout prevention sealing ring of main body, control blowout, this apparatus structure is simple, cost is low, decrease the generation of down-hole accident, improve oil field productivity effect, can effectively prevent the appearance of blowout phenomenon, the timely pressure release when blowout, thus avoiding the waste of oil and the pollution of environment, it is able to ensure that personal security simultaneously, the inside of main body is provided with conical cavity, conical seal ring it is provided with in conical cavity, realize sealing。
The above, be only preferred embodiment of the present utility model, and this utility model is all revised possibly also with the technical scheme of above-mentioned elaboration or is revised as equivalent technical scheme by any those of ordinary skill in the art。Therefore, any simple modification carried out according to the technical solution of the utility model or substitute equivalents, belong to the greatest extent the scope that this utility model claims。
Claims (2)
1. an oil recovery sealing device, it is characterized in that: include pressure cap, upper gland, conical seal ring, main body, lower gland, O-ring seals, sealing ring, connector, the bottom of connector connects wellhead assembly, the top of described connector is provided with toroidal cavity, the top of described connector connects main body, polished rod connects wellhead assembly through main body and connector, sealing ring and lower gland it is provided with in the toroidal cavity of described connector, it is provided with O-ring seals between described lower gland and connector, the inside of described main body is provided with conical cavity, conical seal ring it is provided with in conical cavity, the top of main body is provided with gland and pressure cap。
2. oil recovery sealing device according to claim 1, is characterized in that: be provided with volute spring set between described lower gland and connector, and the inside of volute spring set is provided with volute spring。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620119936.0U CN205330597U (en) | 2016-02-15 | 2016-02-15 | Sealing device for oil recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620119936.0U CN205330597U (en) | 2016-02-15 | 2016-02-15 | Sealing device for oil recovery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205330597U true CN205330597U (en) | 2016-06-22 |
Family
ID=56314120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620119936.0U Expired - Fee Related CN205330597U (en) | 2016-02-15 | 2016-02-15 | Sealing device for oil recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205330597U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437600A (en) * | 2016-11-17 | 2017-02-22 | 东营市金亿来石油机械有限公司 | Oil production wellhead sealing device |
| CN113530486A (en) * | 2021-08-10 | 2021-10-22 | 江苏益马机械有限公司 | Oil recovery well head seal structure |
-
2016
- 2016-02-15 CN CN201620119936.0U patent/CN205330597U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437600A (en) * | 2016-11-17 | 2017-02-22 | 东营市金亿来石油机械有限公司 | Oil production wellhead sealing device |
| CN113530486A (en) * | 2021-08-10 | 2021-10-22 | 江苏益马机械有限公司 | Oil recovery well head seal structure |
| CN113530486B (en) * | 2021-08-10 | 2022-11-01 | 江苏益马机械有限公司 | Oil recovery well head seal structure |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20170215 |