CN201486509U - Oil well steam injection blowout preventer - Google Patents
Oil well steam injection blowout preventer Download PDFInfo
- Publication number
- CN201486509U CN201486509U CN2009201733752U CN200920173375U CN201486509U CN 201486509 U CN201486509 U CN 201486509U CN 2009201733752 U CN2009201733752 U CN 2009201733752U CN 200920173375 U CN200920173375 U CN 200920173375U CN 201486509 U CN201486509 U CN 201486509U
- Authority
- CN
- China
- Prior art keywords
- packing box
- box base
- sealing
- oil well
- steam injection
- 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 discloses an oil well steam injection blowout preventer comprising a packing box base and an oil pipe connection flange with a steam injection hole, wherein the packing box base and the connection flange are connected together by a bolt in a sealing manner; the lower part of a central hole of the packing box base is connected with a tubular sealed outer body by threads; the sealed outer body is internally provided with a tubular sealed inner body in a sliding fit and sheathed manner; the upper end of the sealed inner body is connected with the lower end of a polished rod in the central hole of the packing box base, and the lower end thereof is connected with a sucker rod; and one side wall of the lower part of the packing box base, close to the upper end of the sealed outer body, is provided with a vent hole installed with a vent connector. The oil well steam injection blowout preventer changes the pressure-bearing structure for steam injection pressure, and leads to safer and more convenient steam injection with a pump or replacement of a packing box.
Description
Technical field
The utility model belongs to the oil well rig that oil field adopts the individual well cyclic steam stimulation process, relates to a kind of oil well and annotates the vapour blowout hookup.
Background technology
At present, the notes vapour blowout hookup structure that oil well is used is all comparatively simple and crude, steam injection pressure by in the packing box base, the graphite packing that is looped around around the polished rod bears, the high temperature of steam, high pressure usually make the graphite packing lose efficacy to cause blowout to take place.In addition, existing notes vapour blowout hookup is when changing subordinate's packing, and well head opens wide, and belonging to does not have the control operation, and potential safety hazard is big, often pollutes because of crude oil leakage causes well head.Therefore, existing notes vapour blowout hookup is needed badly and is improved.
The utility model content
The purpose of this utility model is to provide a kind of oil well to annotate the vapour blowout hookup, and it is simple and reasonable for structure, can prevent effectively that the packing inefficacy from causing gas blowout accident and well head to pollute, and makes that the operation when changing packing can be carried out on safe ready ground.
The purpose of this utility model is achieved in that a kind of oil well notes vapour blowout hookup, comprise the packing box base and have the oil pipe adpting flange of annotating steam vent, link together by bolt seal between packing box base and the adpting flange, seal ectosome in packing box centre hole of base bottom by the tubulose that is being threaded, a tubulose sealing endosome is being put in the sliding fiting sleeve installing in the sealing ectosome, sealing endosome upper end links to each other with polished rod lower end in the packing box centre hole of base, sealing endosome lower end links to each other with sucker rod, on packing box base bottom one sidewall near sealing ectosome upper end the air vent that vent connection is housed is being set.
The utility model has changed the bearing structure of steam injection pressure, at needs band infusion vapour or when changing the packing box packing, on carry polished rod, the sealing endosome enters in the sealing ectosome, steam injection pressure is born by the inside and outside body metalwork of sealing.When needs are changed packing box subordinate packing, on carry polished rod, enter the sealing ectosome inside and outside the sealing, this moment, the oil well oil pressure was born by the inside and outside body metalwork of sealing, thoroughly eliminate the potential safety hazard that graphite packing and other bearing structure modes cause, thereby made safer convenience when being with infusion vapour or changing packing box.During normal the oil pumping, open vent connection, transfer the polished rod certain distance, seal inside and outside body and throw off, can realize normal oil pumping.The utility model is simple in structure, is easy to make install, and is safe and convenient to use.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a main TV structure schematic diagram of the present utility model.
The specific embodiment
A kind of oil well is annotated the vapour blowout hookup, as shown in drawings, comprises packing box base 2 and has the oil pipe adpting flange 3 of annotating steam vent 4, links together by bolt seal between packing box base 2 and the adpting flange 3.Seal ectosome 8 in packing box base 2 centre bore bottoms by the tubulose that is being threaded, a tubulose sealing endosome 7 is being put in the sliding fiting sleeve installing in the sealing ectosome 8, sealing endosome 7 upper ends link to each other with polished rod 1 lower end in packing box base 2 centre bores, sealing endosome 7 lower ends link to each other with sucker rod 5, on packing box base 2 bottoms one sidewall near sealing ectosome 8 upper ends the air vent that vent connection 9 is housed are being set.Sealing inside and outside body 7,8 constitutes by stainless-steel pipe.
The length that seals inside and outside body 7,8 is respectively 0.2m-1.5m.
The fit clearance that seals between the inside and outside body 7,8 is 0.02mm-0.12mm.
The utility model is annotated the vapour blowout hookup, can realize being with the blowout prevention of infusion vapour, high temperature high voltage resistant, safety and environmental protection; When oil well is normally changed packing, can guarantee fully that safety has the control operation; Annotating vapour changes motionless pumping pipe string when taking out, and in time changes and takes out, and gives full play to the gas injection effect.
Claims (3)
1. an oil well is annotated the vapour blowout hookup, comprise packing box base (2) and have the oil pipe adpting flange (3) of annotating steam vent (4), link together by bolt seal between packing box base (2) and the adpting flange (3), it is characterized in that: seal ectosome (8) by the tubulose that is being threaded in packing box base (2) centre bore bottom, a tubulose sealing endosome (7) is being put in the interior sliding fiting sleeve installing of sealing ectosome (8), interior polished rod (1) lower end of sealing endosome (7) upper end and packing box base (2) centre bore links to each other, sealing endosome (7) lower end links to each other with sucker rod (5), on packing box base (2) bottom one sidewall near sealing ectosome (8) upper end the air vent that vent connection (9) are housed is being set.
2. oil well according to claim 1 is annotated the vapour blowout hookup, and it is characterized in that: the length that seals inside and outside body (7), (8) is respectively 0.2m-1.5m.
3. oil well according to claim 1 is annotated the vapour blowout hookup, and it is characterized in that: the fit clearance that seals between inside and outside body (7), (8) is 0.02mm-0.12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201733752U CN201486509U (en) | 2009-08-21 | 2009-08-21 | Oil well steam injection blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201733752U CN201486509U (en) | 2009-08-21 | 2009-08-21 | Oil well steam injection blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201486509U true CN201486509U (en) | 2010-05-26 |
Family
ID=42425391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201733752U Expired - Fee Related CN201486509U (en) | 2009-08-21 | 2009-08-21 | Oil well steam injection blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201486509U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863548A (en) * | 2016-05-16 | 2016-08-17 | 徐秀 | Blowout preventer of wellhead of well logging instrument |
-
2009
- 2009-08-21 CN CN2009201733752U patent/CN201486509U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863548A (en) * | 2016-05-16 | 2016-08-17 | 徐秀 | Blowout preventer of wellhead of well logging instrument |
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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: 20100526 Termination date: 20180821 |