CN2900759Y - Combined anti-bias friction oil pump rod - Google Patents
Combined anti-bias friction oil pump rod Download PDFInfo
- Publication number
- CN2900759Y CN2900759Y CN 200620084885 CN200620084885U CN2900759Y CN 2900759 Y CN2900759 Y CN 2900759Y CN 200620084885 CN200620084885 CN 200620084885 CN 200620084885 U CN200620084885 U CN 200620084885U CN 2900759 Y CN2900759 Y CN 2900759Y
- Authority
- CN
- China
- Prior art keywords
- rod
- centralizer
- scouring
- eccentric wear
- proof
- 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 relates to a combined scouring-proof pumping rod, which comprises a centralizer and a scouring-proof rod. The end of the scouring-proof rod is jacketed with the centralizer, and internal screws of the centralizer are connected with screws of the scouring-proof pumping rod. The end of the scouring-proof pumping rod is centralized by the centralizer, and the couplings on the two ends of the scouring-proof pumping rod can prevent scouring. The service life of the pumping rod is improved, the complex production cycle of oil well is extended, the well site operation is reduced, and the economic benefit of the pumping well is improved.
Description
One, technical field
The utility model belongs to the mechanical device of using in the oil field pumping well, particularly a kind of combined type eccentric wear prevention pumping rod.
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, and the wearing and tearing of sucker rod, oil pipe also just inevitably occurred.Particularly deep-well and inclined shaft, sucker rod is easy to bending in oil pipe, the problem that serious sucker rod partial wear oil pipe occurs, after producing eccentric wear oil pipe and sucker rod can not be used, cause the oil well operation, oil well repair free period is short, increase operating cost, increase rod tube consumption, the oil well off-time is many, reduces crude output.The normal problem that adopts the eccentric wear sucker rod to solve oil pipe and sucker rod partial wear on the oil recovery technique.As the patent No.: 03271902.7 oil pipe, the anti-eccentric wear pair of sucker rod, it is exactly a kind of eccentric wear sucker rod, but this eccentric wear sucker rod can only be prevented eccentric wear to its body of rod, can not play the effect of anti-eccentric wear for the rod collar at two ends, cause the application life of whole pumping rod short, the frequent problem of workover rig service to oil well is not resolved, and the pumpingh well economic benefit is low.
Three, summary of the invention
The purpose of this utility model is a kind of combined type eccentric wear prevention pumping rod of design, makes the box cupling at its eccentric wear prevention pumping rod two ends can prevent eccentric wear, improves the application life of rod string.
The purpose of this utility model is achieved in that by centralizer, anti-eccentric wear bar to be formed, and centralizer is sleeved on the end of anti-eccentric wear bar, the interior external threading of centralizer and anti-thread connection of wilfully grinding sucker rod.
The beneficial effects of the utility model are: can set upright the end of eccentric wear prevention pumping rod, the box cupling at eccentric wear prevention pumping rod two ends can be prevented eccentric wear, in the application life that can improve rod string, prolongs the oil well production cycle, reduce workover rig service to oil well, improve the Ji benefit of pumpingh well.
Four, description of drawings
Accompanying drawing is an assembling drawing of the present utility model.
Five, the specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Embodiment of the present utility model is made up of centralizer 1, anti-eccentric wear bar 2, and centralizer 1 is sleeved on the end of anti-eccentric wear bar 2, the interior external threading of centralizer 1 and anti-thread connection of wilfully grinding sucker rod 2.The end of 1 pair of eccentric wear prevention pumping rod 2 of centralizer is set upright, and the box cupling at eccentric wear prevention pumping rod two ends can be prevented eccentric wear, the long service life of rod string, and the oil well production cycle is long, and workover treatment is few, the Ji high efficiency.
Claims (1)
1, a kind of combined type eccentric wear prevention pumping rod is made up of centralizer (1), anti-eccentric wear bar (2), and it is characterized in that: centralizer (1) is sleeved on the end of anti-eccentric wear bar (2), the interior external threading of centralizer (1) and anti-thread connection of wilfully grinding sucker rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084885 CN2900759Y (en) | 2006-05-25 | 2006-05-25 | Combined anti-bias friction oil pump rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620084885 CN2900759Y (en) | 2006-05-25 | 2006-05-25 | Combined anti-bias friction oil pump rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900759Y true CN2900759Y (en) | 2007-05-16 |
Family
ID=38084924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620084885 Expired - Fee Related CN2900759Y (en) | 2006-05-25 | 2006-05-25 | Combined anti-bias friction oil pump rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900759Y (en) |
-
2006
- 2006-05-25 CN CN 200620084885 patent/CN2900759Y/en not_active Expired - Fee Related
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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: 20070516 Termination date: 20100525 |