CN201526286U - Sucker rod centralizer - Google Patents
Sucker rod centralizer Download PDFInfo
- Publication number
- CN201526286U CN201526286U CN2009202529103U CN200920252910U CN201526286U CN 201526286 U CN201526286 U CN 201526286U CN 2009202529103 U CN2009202529103 U CN 2009202529103U CN 200920252910 U CN200920252910 U CN 200920252910U CN 201526286 U CN201526286 U CN 201526286U
- Authority
- CN
- China
- Prior art keywords
- rod
- centralizing
- sucker rod
- thread
- collar
- 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
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a sucker rod centralizer comprising a centralizing rod, a centralizing sleeve, a thread off prevention pin and a sucker rod collar. The upper end and the lower end of the centralizing rod are provided with sucker rod pin threads, a large diameter section is arranged below the pin thread at the upper end of the centralizing rod, and a centralizing sleeve is sleeved on the pin thread at the lower end of the centralizing rod; the pin thread at the lower end of the centralizing rod is connected with the sucker rod collar, and the connecting thread position is transversely provided with the thread off prevention pin; and the centralizing sleeve is limited by the large diameter section on the centralizing rod and the sucker rod collar. The centralizing sleeve can rotate along with the motion of a sucker rod, so that the large circular arc surface of the centralizing sleeve is contacted and matched with the internal wall of a matched oil pipe to centralize the sucker rod, the curvature degree is reduced when the sucker rod moves downwards, thereby reducing the abrasion, prolonging the service lives of the oil pipe and the sucker rod as well as the production period of an oil well.
Description
One, technical field:
The utility model is the interior equipment of well that oil field pumping well is used, particularly a kind of oil pumping rod centering device.
Two, background technology:
In the oil pumping system of oil field, R a T has relative contact movement, certainly existing between sucker rod and the oil pipe and rubbing, the problem of sucker rod partial wear oil pipe occurring, behind the generation eccentric wear oil pipe and sucker rod can not used, cause the oil well operation, oil well repair free period is short, increases operating cost, increases rod tube consumption, the oil well off-time is many, reduces crude output.The normal problem that adopts oil pumping rod centering device to solve oil pipe and sucker rod partial wear on the oil recovery technique.
Three, summary of the invention:
The purpose of this utility model provides a kind of oil pumping rod centering device, alleviates line bend under the sucker rod, improves oil pipe, sucker rod application life, prolongs the oil well production cycle.
The utility model is achieved in that by righting rod, supporting positive cover, anticreep pin, rod collar to be formed, the righting rod upper and lower side has the sucker rod male thread, under the male thread of righting rod upper end enlarged diameter section is arranged, suit supporting positive cover on the male thread of righting rod lower end, connect rod collar at righting rod lower end male thread, the anticreep pin is laterally installed at its connecting thread place, and supporting positive cover is spacing by enlarged diameter section on the righting rod and rod collar.
The beneficial effects of the utility model are: supporting positive cover can be with sucker rod motion rotation, its great circle cambered surface is contacted with supporting tube inner wall to match, set upright sucker rod, degree of crook alleviated when sucker rod was descending, can alleviate wearing and tearing, improve oil pipe, sucker rod application life, can prolong the oil well production cycle.
Four, description of drawings:
Accompanying drawing is the assembling drawing of the utility model embodiment.
Five, the specific embodiment:
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Form by righting rod 1, supporting positive cover 2, anticreep pin 3, rod collar 4, righting rod 1 upper and lower side has the sucker rod male thread, under the righting rod 1 upper end male thread enlarged diameter section is arranged, suit supporting positive cover 2 on righting rod 1 lower end male thread, connect rod collar 4 at righting rod 1 lower end male thread, anticreep pin 3 is laterally installed at its connecting thread place, prevent the screw thread dropout, supporting positive cover 2 is spacing by enlarged diameter section on the righting rod 1 and rod collar 4.Supporting positive cover 2 can rotate, can not play.
The utility model is installed between the rod string, is distributed in the oil pipe section of wearing and tearing easily, and sucker rod is played centralizing function, can be not crooked when sucker rod is descending.
Claims (1)
1. oil pumping rod centering device, form by righting rod (1), supporting positive cover (2), anticreep pin (3), rod collar (4), it is characterized in that: righting rod (1) upper and lower side has the sucker rod male thread, under the male thread of righting rod (1) upper end enlarged diameter section is arranged, suit supporting positive cover (2) on the male thread of righting rod (1) lower end, connect rod collar (4) at righting rod (1) lower end male thread, anticreep pin (3) is laterally installed at its connecting thread place, and supporting positive cover (2) is spacing by enlarged diameter section on the righting rod (1) and rod collar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202529103U CN201526286U (en) | 2009-11-06 | 2009-11-06 | Sucker rod centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202529103U CN201526286U (en) | 2009-11-06 | 2009-11-06 | Sucker rod centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201526286U true CN201526286U (en) | 2010-07-14 |
Family
ID=42517574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202529103U Expired - Fee Related CN201526286U (en) | 2009-11-06 | 2009-11-06 | Sucker rod centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201526286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704736A (en) * | 2016-11-29 | 2017-05-24 | 无锡金顶石油管材配件制造有限公司 | Disengagement-preventing coupling used for petroleum pipeline |
-
2009
- 2009-11-06 CN CN2009202529103U patent/CN201526286U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704736A (en) * | 2016-11-29 | 2017-05-24 | 无锡金顶石油管材配件制造有限公司 | Disengagement-preventing coupling used for petroleum pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201526286U (en) | Sucker rod centralizer | |
| CN201507247U (en) | Sucker rod centralizer | |
| CN201377294Y (en) | Righting abrasion-proof sucker-rod coupling | |
| CN201972624U (en) | Pumping rod straightening device | |
| CN201517377U (en) | Centralizer of rod part of sucker rod | |
| CN201818249U (en) | Positioning anti-eccentric wear device | |
| CN201187263Y (en) | Horizontal well stationary type pipe column centralizer | |
| CN201695962U (en) | Centralizer of sucker rod | |
| CN201254956Y (en) | Anti-biasing-wear hollow sucker rod | |
| CN201254961Y (en) | Anti-releasing rotating wax scraping centralizer for sucker rod roller | |
| CN202073508U (en) | Positioning eccentric wear prevention device | |
| CN201306130Y (en) | Automatic righting and anti-abrasion device for pumping rod | |
| CN202073509U (en) | Pumping rod protector | |
| CN201031631Y (en) | Rotary corrector for sucker rod | |
| CN203296714U (en) | Oil pumping well eccentric wearing preventing device | |
| CN201090150Y (en) | Pumping rod double-acting centralizer | |
| CN2646368Y (en) | Eccentric proof grinding pair for oil tube and sucker rod | |
| CN201206441Y (en) | Bolt guiding and righting fittings | |
| CN200971754Y (en) | Partial abrasion protection sucker rod | |
| CN201420511Y (en) | Wear-resistant sucker rod coupling | |
| CN203066896U (en) | Eccentric sucker rod wear preventing centralizer | |
| CN103334705A (en) | Novel sucker rod centering device | |
| CN203188933U (en) | Spiral centralizer for pumping well rod column | |
| CN203161104U (en) | Straightening abrasion-proof hollow sucker rod | |
| CN202990893U (en) | Connector for electric heating hollow oil pumping smooth rod |
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: 20100714 Termination date: 20101106 |