CN2898274Y - High-temperature-resisting abrasive polish-rod sealer of pump well - Google Patents
High-temperature-resisting abrasive polish-rod sealer of pump well Download PDFInfo
- Publication number
- CN2898274Y CN2898274Y CN 200520145924 CN200520145924U CN2898274Y CN 2898274 Y CN2898274 Y CN 2898274Y CN 200520145924 CN200520145924 CN 200520145924 CN 200520145924 U CN200520145924 U CN 200520145924U CN 2898274 Y CN2898274 Y CN 2898274Y
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- centralizing
- utility
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- casing
- cap
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- Expired - Fee Related
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Abstract
The utility model relates to a pumping well polished rod sealer with high temperature resistance and abrasion resistance used in pumping well, in particular in thermal production thick oil well, comprising a cap 1, an upper centralizing casing 2, a middle centralizing casing 5 and a lower centralizing casing 6, a compound sealing stuffing 3 and a compound sealing stuffing 8, a sealing box 4 and a lower connector 7. The top and the bottom of the sealing box 4 are screwed on the cap 1 and the lower connector 7; two layers of compound sealing stuffing 3 and 8 and the upper centralizing casing 2, the middle centralizing casing 5 and the lower centralizing casings 6 are arranged in the chamber formed by the cap 1, the sealing box 4 and the lower connector 7. The utility model has the advantages of reasonable design, novel structure and reliable performance; the utility model can be used for greatly extending the service life of the sealing stuffing, reducing the workload and labor intensity of the oil exploration workers and bringing benefits for normal pumping well production.
Description
Technical field:
The utility model relates to a kind of particularly parts of the wellhead assembly of heavy oil heat production well production of pumpingh well that are used for.
Background technology:
Polished rod sealer is the vitals of pumpingh well wellhead assembly.At present, the polished rod sealer structure of field by using is various, but because its long-time continuous is worked under the abrasion state, especially the heat extraction by steam injection heavy oil wells is born high temperature again, makes that airtight and watertight padding wearing and tearing wherein are very fast, cause seal failure within a short period of time, the airtight and watertight padding of having to frequently change like this, has not only strengthened oil recovery workman's workload and labour intensity, bring very big inconvenience for simultaneously the oil recovery production management, influence the ordinary production of pumpingh well.
Summary of the invention:
The heat resistant and wear resistant pumpingh well polished rod sealer that the purpose of this utility model is to provide a kind of convenient filling, sealing is reliable and have the works fine performance.
The utility model is to realize like this.This kind polished rod sealer is made up of pressure cap, supporting positive cover, seal box, compound seal filler and lower contact, the seal box upper and lower end is connected with lower contact with pressure cap with screw thread respectively, is provided with three groups of supporting positive covers of two-layer compound seal filler and upper, middle and lower up and down in the chamber that is made of pressure cap, sealing shroud, lower contact.In the pumpingh well manufacturing process, polished rod pumps, three groups of supporting positive covers directly contact with polished rod, play and well set upright positioning action, alleviate the wearing and tearing of polished rod to airtight and watertight padding significantly, special construction and high temperature resistant material have been adopted in upper and lower in addition two-layer airtight and watertight padding, thereby have prolonged the application life of airtight and watertight padding greatly, alleviate the oil recovery workman and changed the workload of filler, and helped the ordinary production of pumpingh well.
The utility model is reasonable in design, novel structure, and reliable operation utilizes it to prolong the application life of airtight and watertight padding greatly, alleviates oil recovery workman's workload and labour intensity, helps the ordinary production of pumpingh well.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model is made up of pressure cap 1, supporting positive cover 2,5,6, compound seal filler 3,8, seal box 4 and lower contact 7, its structure, assembled relation are as follows: seal box 4 upper and lower ends are connected with lower contact 7 with pressure cap 1 with screw thread respectively, are provided with three groups of supporting positive covers of two-layer compound seal filler 3,8 and upper, middle and lower 2,5,6 up and down in the chamber that is made of pressure cap 1, seal box 4, lower contact 7.Wherein, supporting positive cover 2,5,6 is the relative splicing construction of bivalve, adopts the much smaller brass of hardness ratio polished rod to make.Upper strata airtight and watertight padding 3 is made up of the high temperature resistant compounded rubber of multilayer taper, and lower floor's airtight and watertight padding 8 is made up of the high temperature resistant compounded rubber of the concavo-convex special construction that matches.
Claims (1)
1, a kind of heat resistant and wear resistant pumpingh well polished rod sealer, form by pressure cap (1), supporting positive cover (2), (5), (6), compound seal filler (3), (8), seal box (4) and lower contact (7), it is characterized in that: seal box (4) upper and lower end is connected with lower contact (7) with pressure cap (1) with screw thread respectively, is provided with two-layer compound seal filler (3), (8) and the three groups of supporting positive covers in upper, middle and lower (2), (5), (6) up and down in the chamber by pressure cap (1), seal box (4), lower contact (7) formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145924 CN2898274Y (en) | 2005-12-19 | 2005-12-19 | High-temperature-resisting abrasive polish-rod sealer of pump well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520145924 CN2898274Y (en) | 2005-12-19 | 2005-12-19 | High-temperature-resisting abrasive polish-rod sealer of pump well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898274Y true CN2898274Y (en) | 2007-05-09 |
Family
ID=38073610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520145924 Expired - Fee Related CN2898274Y (en) | 2005-12-19 | 2005-12-19 | High-temperature-resisting abrasive polish-rod sealer of pump well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898274Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798083A (en) * | 2019-02-27 | 2019-05-24 | 中国石化江汉油田分公司江汉采油厂 | A kind of rotatable Buddhist nun of flap-type helps wellhead packing box and its application method |
-
2005
- 2005-12-19 CN CN 200520145924 patent/CN2898274Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798083A (en) * | 2019-02-27 | 2019-05-24 | 中国石化江汉油田分公司江汉采油厂 | A kind of rotatable Buddhist nun of flap-type helps wellhead packing box and its application method |
| CN109798083B (en) * | 2019-02-27 | 2021-04-27 | 中国石油化工股份有限公司 | Petal type rotatable damping wellhead packing box and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070509 Termination date: 20100119 |