CN2060473U - Trace type sucker rod sealing device - Google Patents
Trace type sucker rod sealing device Download PDFInfo
- Publication number
- CN2060473U CN2060473U CN 89220279 CN89220279U CN2060473U CN 2060473 U CN2060473 U CN 2060473U CN 89220279 CN89220279 CN 89220279 CN 89220279 U CN89220279 U CN 89220279U CN 2060473 U CN2060473 U CN 2060473U
- Authority
- CN
- China
- Prior art keywords
- polish rod
- oil pumping
- sealing device
- sucker rod
- pumping polish
- 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.)
- Withdrawn
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Abstract
The utility model relates to a trace type sucker rod sealing device, which is characterized in that a flexible pipe (9) and an outer sleeve (10) are arranged; an eyelet is opened on the upper end of the outer sleeve, and an unlading pin (7) is fixed on an upper inner-pipe joint (6) through the eyelet. When the sucker rod moves up and down, a sealing device can generate certain-directional horizontal displacement along with the sucker rod so as to reduce friction between the sealing device and the sucker rod; thus the operating life of the sealing device is prolonged, and the system work efficiency and the economic benefit of the sucking equipment are improved.
Description
The utility model relates to a kind of aboveground oil pumping polish rod sealing device of sucker rod pumping that is used for.
The oil pumping polish rod sealer is mounted in production wellhead.When oil pumping polish rod under the driving of ground pumping unit, when pumping,, load onto the oil pumping polish rod sealer at well head in order to prevent the outside seepage of crude oil.The on-the-spot normally used conventional formula oil pumping polish rod sealer in oil field directly is fixedly mounted on well head with seal box, but because the accuracy of manufacture of underground working factor and ground pumping unit, and the component of the pumping unit influence of behind bearing load, being out of shape, oil pumping polish rod is when moving up and down, also supervene the horizontal movement of certain orientation, i.e. " swing ".When using conventional formula oil pumping polish rod sealer, " swing " makes the frictional resistance increase of polished rod motion, and sealer sharply weares and teares, and causes the outside seepage of crude oil.Therefore, must shut down and change sealer, this makes that the application life of oil pumping polish rod sealer is shorter.
Task of the present utility model provides a kind of tracking mode oil pumping polish rod sealer, make it to have and to follow oil pumping polish rod to produce the horizontal movement of certain orientation, to reduce the friction between oil pumping polish rod and the seal box, the characteristics of the system works efficient of pumping unit are kept the safety in production, are improved in the working life, the assurance that prolong sealer.
Design main points of the present utility model are: be provided with the flexible pipe of being made by flexible material (9) in the oil pumping polish rod sealer, the upper end of flexible pipe and last inner pipe joint (6) and upper exterior tube joint (8) link, and the lower end links with following inner pipe joint (11) and lower outer pipe joint (12); In the outside of flexible pipe, be provided with outer sleeve (10); Have some eyelets in the upper end of outer sleeve, unloading pin (7) is fixed on the inner pipe joint (6) by eyelet, and the unloading pin can be done rocking up and down of certain limit in eyelet.When oil pumping polish rod moves up and down, because the effect of flexible pipe, the seal box on sealer top parts such as (4) produce the horizontal movement of certain orientation along with " swing " of oil pumping polish rod, to reduce the friction between oil pumping polish rod and the seal box, on the other hand, when oil pumping polish rod moved up and down, the load that oil pumping polish rod passes to sealer passed to outer sleeve by the unloading pin, to reduce the stressed of flexible pipe, prolong its application life.
Tracking mode oil pumping polish rod sealer described in the utility model is compared with existing oil pumping polish rod sealer, has long working life, guarantees safety in production, the characteristics that economic benefit is high.
Fig. 1 is a general structure schematic diagram of the present utility model.
Fig. 2 is the structural representation of the utility model unloading pin part.
Among the figure: (1) is slip sleeve; (2) gland; (3) sealing ring; (4) seal box; (5) pad; (6) go up inner pipe joint; (7) unloading pin; (8) upper exterior tube joint; (9) flexible pipe; (10) outer sleeve; (11) inner pipe joint under; (12) lower outer pipe joint; (13) rubber valve; (14) oil pumping polish rod.
Implement the utility model, flexible pipe can adopt rubber tube, nylon tube or metal hose, and three eyelets or four eyelets can be opened in the upper end of outer sleeve, supporting with it should adorn three or four unloadings sell on last inner pipe joint.Can on the basis of former conventional formula oil pumping polish rod sealer, increase (6); (7); (8); (9); (10); (11); (12) transform, also can make new equipment, just can realize the purpose of this utility model according to the utility model.
Claims (4)
1, a kind of tracking mode oil pumping polish rod sealer of forming by oil pumping polish rod (14), sealing ring (3), seal box (4), it is characterized in that being provided with in the sealer flexible pipe (9), its upper end links with last inner pipe joint (6) and upper exterior tube joint (8), and the lower end links with following inner pipe joint (11) and lower outer pipe joint (12).
2, oil pumping polish rod sealer according to claim 1 is characterized in that being provided with outer sleeve (10) in the outside of flexible pipe, has some eyelets in the upper end of outer sleeve, and unloading pin (7) is fixed on the inner pipe joint by eyelet.
3, according to claim 1,2 described oil pumping polish rod sealers, what it is characterized in that the flexible pipe employing is rubber tube.
4,, it is characterized in that the upper end of outer sleeve has three eyelets according to claim 1,2 described oil pumping polish rod sealers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220279 CN2060473U (en) | 1989-11-23 | 1989-11-23 | Trace type sucker rod sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220279 CN2060473U (en) | 1989-11-23 | 1989-11-23 | Trace type sucker rod sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2060473U true CN2060473U (en) | 1990-08-15 |
Family
ID=4874989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89220279 Withdrawn CN2060473U (en) | 1989-11-23 | 1989-11-23 | Trace type sucker rod sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2060473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050179A (en) * | 2016-07-22 | 2016-10-26 | 中煤科工集团西安研究院有限公司 | Tracking-mode well opening sealing device and sealing method for same |
-
1989
- 1989-11-23 CN CN 89220279 patent/CN2060473U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050179A (en) * | 2016-07-22 | 2016-10-26 | 中煤科工集团西安研究院有限公司 | Tracking-mode well opening sealing device and sealing method for same |
| CN106050179B (en) * | 2016-07-22 | 2018-07-20 | 中煤科工集团西安研究院有限公司 | A kind of tracking mode well mouth sealing device and its encapsulating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |