CN205330598U - Producing well mouth sealing device - Google Patents
Producing well mouth sealing device Download PDFInfo
- Publication number
- CN205330598U CN205330598U CN201620119937.5U CN201620119937U CN205330598U CN 205330598 U CN205330598 U CN 205330598U CN 201620119937 U CN201620119937 U CN 201620119937U CN 205330598 U CN205330598 U CN 205330598U
- Authority
- CN
- China
- Prior art keywords
- main body
- main part
- toroidal cavity
- upper portion
- annular cavity
- 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
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a producing well mouth sealing device, its technical scheme is: the lower part and the wellhead assembly of main part are connected, and the upper portion of main part is cylindrical sealed chamber, and the centre of main part is toroidal cavity, and the sucker rod passes the cylindrical sealed chamber in upper portion of main part, middle toroidal cavity connects on the wellhead assembly, is equipped with the sealing washer between cylindrical sealed chamber and the sucker rod, press the cap through pressing cover press the sealing circle, and the middle toroidal cavity of main part has two accommodate the lead screw, and accommodate the lead screw's end -to -end connection semicircle seals and fills up, the middle toroidal cavity of main part in be equipped with the pressure release board, the upper portion of pressure release board is equipped with the spring, the middle toroidal cavity upper portion of main part be equipped with the pressure release pipe, 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 recovery equipment, particularly to a kind of oil extraction wellhead 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 extraction wellhead sealing device, this apparatus structure is simple, cost is low, decreases the generation of down-hole accident, improves oil field productivity effect。
Its technical scheme is: include pressure cap, gland, sealing ring, main body, adjusting screw, semicircle sealing gasket, pressure relief plate, spring, relief tube, the bottom of main body is connected with wellhead assembly, the top of main body is cylindrical seal chamber, the centre of main body is toroidal cavity, the upper cylindrical annular seal space of sucker rod traverse main body, intermediate annular cavity is connected on wellhead assembly, it is provided with sealing ring between cylindrical seal chamber and sucker rod, pressure cap compresses sealing ring by gland, the intermediate annular cavity of main body has two adjustment screw mandrels, the end regulating screw mandrel connects semicircle sealing gasket, it is provided with pressure relief plate in the intermediate annular cavity of described main body, the top of pressure relief plate is provided with spring, the intermediate annular cavity top of described main body is provided with relief tube。
The inwall of above-mentioned semicircle sealing gasket is provided with rubber blanket, and rubber blanket is provided with spill adsorption hole。
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, being able to ensure that personal security simultaneously, be provided with pressure relief plate in the intermediate annular cavity of main body, the top of pressure relief plate is provided with spring, slow pressure release is realized by pressure relief plate and relief tube, this apparatus structure is simple, cost is low, decreases the generation of down-hole accident, improves 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 semicircle sealing gasket；
In upper figure: pressure cap 1, gland 2, sealing ring 3, main body 4, adjusting screw 5, semicircle sealing gasket 6, pressure relief plate 7, spring 8, relief tube 9, polished rod 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, gland 2, sealing ring 3, main body 4, adjusting screw 5, semicircle sealing gasket 6, pressure relief plate 7, spring 8, relief tube 9, the bottom of main body 4 is connected with wellhead assembly, the top of main body 4 is cylindrical seal chamber, the centre of main body 4 is toroidal cavity, the upper cylindrical annular seal space of polished rod 10 traverse main body 4, intermediate annular cavity is connected on wellhead assembly, sealing ring 3 it is provided with between cylindrical seal chamber and polished rod 10, pressure cap 1 compresses sealing ring 3 by gland 2, the intermediate annular cavity of main body 4 has two adjustment screw mandrels 5, the end regulating screw mandrel 5 connects semicircle sealing gasket 6, it is provided with pressure relief plate 7 in the intermediate annular cavity of described main body 4, the top of pressure relief plate 7 is provided with spring 8, the intermediate annular cavity top of described main body 4 is provided with relief tube 9。
Wherein, the inwall of semicircle sealing gasket 6 is provided with rubber blanket, and rubber blanket is provided with spill adsorption hole。
Operation principle:
Main body 4 bottom is connected with wellhead assembly, and main body 4 top is cylindrical seal chamber, and pressure cap 1 compresses one group of rectangular seal 3 by gland 2 and reaches the purpose of sealing wellhead；Two adjustment screw mandrels 5 are had in the middle part of main body 4, it is used for regulating two semicircle sealing gaskets 6, it is made to snap on polished rod, in order to control blowout, it is provided with pressure relief plate 7 in the intermediate annular cavity of main body 4, the top of pressure relief plate 7 is provided with spring 8, and the intermediate annular cavity top of described main body 4 is provided with relief tube 9, realizes slow pressure release by pressure relief plate 7 and relief tube 9。
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 extraction wellhead sealing device, it is characterized in that: include pressure cap, gland, sealing ring, main body, adjusting screw, semicircle sealing gasket, pressure relief plate, spring, relief tube, the bottom of main body is connected with wellhead assembly, the top of main body is cylindrical seal chamber, the centre of main body is toroidal cavity, the upper cylindrical annular seal space of sucker rod traverse main body, intermediate annular cavity is connected on wellhead assembly, it is provided with sealing ring between cylindrical seal chamber and sucker rod, pressure cap compresses sealing ring by gland, the intermediate annular cavity of main body has two adjustment screw mandrels, the end regulating screw mandrel connects semicircle sealing gasket, it is provided with pressure relief plate in the intermediate annular cavity of described main body, the top of pressure relief plate is provided with spring, the intermediate annular cavity top of described main body is provided with relief tube。
2. a kind of oil extraction wellhead sealing device according to claim 1, is characterized in that: the inwall of described semicircle sealing gasket is provided with rubber blanket, and rubber blanket is provided with spill adsorption hole。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620119937.5U CN205330598U (en) | 2016-02-15 | 2016-02-15 | Producing well mouth sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620119937.5U CN205330598U (en) | 2016-02-15 | 2016-02-15 | Producing well mouth sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205330598U true CN205330598U (en) | 2016-06-22 |
Family
ID=56314137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620119937.5U Expired - Fee Related CN205330598U (en) | 2016-02-15 | 2016-02-15 | Producing well mouth sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205330598U (en) |
Cited By (1)
| 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 |
-
2016
- 2016-02-15 CN CN201620119937.5U patent/CN205330598U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102213081B (en) | Spindle type metal sealing and metal framework type rubber sealing sleeve hanger | |
| CN205330598U (en) | Producing well mouth sealing device | |
| CN104251125A (en) | Universal follow-up bias adjusting polished rod sealing mechanism | |
| CN205330597U (en) | Sealing device for oil recovery | |
| CN201280908Y (en) | Borehole log wellhead double-sealing blowout preventer | |
| CN203847071U (en) | Downhole safety valve | |
| CN201671585U (en) | Eccentric wear and spray prevention well mouth seal device | |
| CN202673224U (en) | Self-uprighting wellhead sealing energy-saving adjustment device | |
| CN202531080U (en) | Wellhead sealing hanger | |
| CN201972649U (en) | Polish rod screwing pressing sealing device for oil sucking machine | |
| CN202596624U (en) | Metal seal and metal framework type rubber seal casing hanger | |
| CN204060611U (en) | A kind of open hole well squeezes stifled compression long packing element type hydraulic packer | |
| CN204024572U (en) | Pit shaft spraying prevention switch device and oil extraction pump assembly | |
| CN203161152U (en) | Sucker rod self-sealing preventer | |
| CN205400655U (en) | Preventer is proclaimed oneself to high pressure | |
| CN203867510U (en) | Efficient energy-saving wellhead self-sealing blowout preventer | |
| CN202689990U (en) | Rolling polish-rod centering rod-pumped well wellhead packing box | |
| CN205638325U (en) | Universal adjusting deviation device of pumping wellhead | |
| CN208900066U (en) | A kind of wellhead sealing device | |
| CN204457584U (en) | A kind of upper special packer that recovers the oil | |
| CN203962356U (en) | Overcurrent standing valve for oil-well pump | |
| CN205743818U (en) | Wellhead blowout preventer | |
| CN209855740U (en) | Packing box pressing cap for long-stroke pumping unit polished rod | |
| CN203161175U (en) | Downhole vent valve | |
| CN204252945U (en) | Automatic discharge valve |
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 |