CN2419365Y - Sealing packing for polish rod of sucker - Google Patents
Sealing packing for polish rod of sucker Download PDFInfo
- Publication number
- CN2419365Y CN2419365Y CN 00203860 CN00203860U CN2419365Y CN 2419365 Y CN2419365 Y CN 2419365Y CN 00203860 CN00203860 CN 00203860 CN 00203860 U CN00203860 U CN 00203860U CN 2419365 Y CN2419365 Y CN 2419365Y
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- CN
- China
- Prior art keywords
- packing
- utility
- model
- rod
- rubber layer
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- 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 a sealing packing for a polish rod of a rod-pumped well, which solves the problems of poor abrasive resistance and temperature resistance, low strength, etc., existing in the rubber solid packing in the past. Namely, the utility model solves the problem that the service life of the rubber solid packing is short. The utility model is characterized in that a polyester line cord is sulfurized in a rubber layer, which causes the abrasive resistance, temperature resistance and strength of the packing to be greatly improved. The service life of the packing is extended, the frequencies of packing replacement are reduced, the pumping stopping time of an individual well is shortened, effective time rate of oil pumping is improved, oil production is increased, and direct benefit is brought.
Description
The utility model relates to a kind of sealed packing, belongs to the packing that is used in sealing oil pumping polish rod on the rod-pumped well.
At present, the polished rod seal packing of oilfield pumping well adopts rubber entity packing mostly.The outstanding shortcoming of this packing is to use the life-span short, and its reason is: (1) rubber entity packing wears no resistance, and particularly in the rod-pumped well oil water mixture during burning into sand, its life-span more shortens dramatically; (2) heat resistance of rubber entity packing is poor, and packing under high temperature action volume expansion takes place, and causes friction aggravation between packing and the polished rod, and shorten application life; (3) intensity of rubber entity packing is low, and when compressing packing with pressure cap, packing will be turned on one's side in wedging packing box pressure cap and the gland, causes damage, loses sealing function.To sum up, three kinds of reasons make the polished rod seal packing lost of life, will cause the rod-pumped well individual well to change the packing increased frequency, have increased workman's workload on the one hand, on the other hand, are increased the individual well stop pumping time, and rate when reducing oil effectively influences oil production.Up to the present, yet there are no longer polished rod seal packing of life-span.
The purpose of this utility model is exactly to provide longer rod-pumped well polished rod seal packing of a kind of life-span for the deficiency that overcomes above-mentioned prior art existence.
The purpose of this utility model reaches by the following technical programs: this kind rod-pumped well polished rod seal packing, form by polyester cotton rope and rubber layer, and be characterized in: the polyester cotton rope is positioned at rubber layer, and the two is fixed with vulcanization.
Above-mentioned rod-pumped well polished rod seal packing, the polyester cotton rope that vulcanizes in rubber layer can be one or more layers.
The utility model compared with prior art has following advantage: this kind packing is owing to sulfuration in rubber layer has the polyester cotton rope, packing hardness height, thereby abrasion resistance greatly improves, behind the sulfuration polyester cotton rope, the overall thermal expansion rate of packing reduces, even it is too big also can not expand in the high-temperature condition lower volume, be unlikely making friction aggravation between packing and polished rod, behind the sulfuration polyester cotton rope, packing intensity also greatly improves, these all make greatly prolong the application life of packing, have reduced workman's workload, make to change the minimizing of packing number of times, the individual well stop pumping time shortens, rate when improving oil effectively increases oil production, brings direct economic benefit.
Accompanying drawing 1 is the structure chart of the utility model sulfuration one deck polyester cotton rope;
Accompanying drawing 2 is structure charts that the utility model vulcanizes two strata fat cotton ropes.
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, individual layer polyester cotton rope 1 is positioned in the middle of the rubber layer 2, and the two is fixed with vulcanization.
By shown in Figure 2, the polyester cotton rope 3 that vulcanizes in rubber layer 4 is two-layer, and polyester cotton rope 3 is symmetric arrangement in rubber layer 4.
During installation, with this packing in the direction of the clock spiral put into packing box, compress with pressure cap again and get final product.
Claims (2)
1, a kind of rod-pumped well polished rod seal packing is made up of polyester cotton rope (1,3) and rubber layer (2,4), and it is characterized in that: polyester cotton rope (1,3) is positioned at rubber layer (2,4), and the two is fixed with vulcanization.
2, rod-pumped well polished rod seal packing according to claim 1 is characterized in that: the polyester cotton rope (1,3) that vulcanizes in rubber layer (2,4) can be one or more layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203860 CN2419365Y (en) | 2000-02-23 | 2000-02-23 | Sealing packing for polish rod of sucker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00203860 CN2419365Y (en) | 2000-02-23 | 2000-02-23 | Sealing packing for polish rod of sucker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2419365Y true CN2419365Y (en) | 2001-02-14 |
Family
ID=33572423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00203860 Expired - Fee Related CN2419365Y (en) | 2000-02-23 | 2000-02-23 | Sealing packing for polish rod of sucker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2419365Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779559A (en) * | 2018-12-11 | 2019-05-21 | 中国石油天然气股份有限公司 | A kind of rod-pumped well packing box sealing particle |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
-
2000
- 2000-02-23 CN CN 00203860 patent/CN2419365Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779559A (en) * | 2018-12-11 | 2019-05-21 | 中国石油天然气股份有限公司 | A kind of rod-pumped well packing box sealing particle |
| CN112709556A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
| CN112709556B (en) * | 2019-10-24 | 2022-12-06 | 中国石油化工股份有限公司 | Rapid well completion pipe string for offshore oilfield water injection well and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |