CN201460754U - Sucker rod with eccentric wear prevention - Google Patents
Sucker rod with eccentric wear prevention Download PDFInfo
- Publication number
- CN201460754U CN201460754U CN2009200810554U CN200920081055U CN201460754U CN 201460754 U CN201460754 U CN 201460754U CN 2009200810554 U CN2009200810554 U CN 2009200810554U CN 200920081055 U CN200920081055 U CN 200920081055U CN 201460754 U CN201460754 U CN 201460754U
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- CN
- China
- Prior art keywords
- sucker rod
- rod
- oil
- coupling
- eccentric wear
- 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 discloses a sucker rod with eccentric wear prevention comprising a sucker rod coupling and a sucker rod, wherein the sucker rod coupling has a structure with large outer diameter in the middle and small outer diameter at both ends, the generatrix is an arc-shaped surface, the large and small outer diameters are in smooth transition, and a wear-resistant pipe is cast on a rod body of the sucker rod. The sucker rod with eccentric wear prevention has the beneficial effects that by adopting the coupling with large outer diameter in the middle and small outer diameter at both ends, the radial force is reduced when the sucker rod coupling is in contact with an oil pipe port and the sucker rod coupling passes through the clearance at the connecting part of the oil pipes in oil pumping, the collision is greatly reduced and the damage of the sucker rod coupling and the oil pipe port is avoided. The wear-resistant pipe is cast on the rod body of the sucker rod, and the rod body of the sucker rod also can prevent eccentric wear, therefore the service life of the sucker rod is improved, the production cycle of an oil well is prolonged, the workover operation of the oil well is reduced, and the economic benefits of the pumping well are improved.
Description
Technical field
The utility model relates to instrument used in the oilfield exploitation field, particularly a kind of eccentric wear prevention pumping rod.
Background technology
In oilfield exploitation, in sucker rod and the oil pipe relative contact movement is arranged, certainly exist friction between the two, also just inevitably produced wearing and tearing.Particularly deep-well and inclined shaft, sucker rod is flexible in the oil pipe content, the problem of serious sucker rod partial wear oil pipe occurs, thereby causes oil pipe and sucker rod not to use.This situation will cause oil well repair free period short, increases operating cost, increases devices consume, finally causes cost to increase.
The utility model content
The utility model discloses a kind of eccentric wear prevention pumping rod, be made up of rod collar, sucker rod, this rod collar is that the middle part external diameter is big, the structure that the two ends external diameter is little, bus is an arcuate surface, the mild transition of big or small external diameter, and the body of rod direct casting of sucker rod is equipped with the abrasionproof pipe in addition.
Described abrasionproof pipe is made by high-abrasive material, and length surpasses 1000mm.
The beneficial effects of the utility model are: adopt the middle part external diameter big, the box cupling that the two ends external diameter is little, make it in oil pumping, when rod collar is crossed the gap of oil pipe and oil pipe connection place, radial load when rod collar contacts with the oil pipe port diminishes, reduce collision greatly, thereby avoid rod collar and oil pipe port to damage.And the body of rod direct casting of sucker rod dress abrasionproof pipe makes the sucker rod body of rod also can prevent eccentric wear.Improve sucker rod application life thereby reach, prolong the oil well production cycle, reduce workover rig service to oil well, improve the economic benefit of pumpingh well.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with accompanying drawing the utility model specific embodiment is done and to be described in more detail.
A kind of eccentric wear prevention pumping rod is made up of rod collar 3, sucker rod 1, and this rod collar 3 is that the middle part external diameter is big, the structure that the two ends external diameter is little, and bus is an arcuate surface, the mild transition of big or small external diameter, the body of rod direct casting of sucker rod 1 is equipped with abrasionproof pipe 2 in addition.Described abrasionproof pipe is made by high-abrasive material, and rule of thumb, length will surpass 1000mm.
During use, the design of box cupling 3 and abrasionproof pipe 2 makes sucker rod prolong application life, thereby prolongs the oil well production cycle, prolongs oil well repair free period, improves the economic benefit of oil well.
Claims (2)
1. an eccentric wear prevention pumping rod is made up of rod collar, sucker rod, it is characterized in that: this rod collar is that the middle part external diameter is big, the structure that the two ends external diameter is little, bus is an arcuate surface, the mild transition of big or small external diameter, and the body of rod direct casting of sucker rod is equipped with the abrasionproof pipe in addition.
2. according to the described a kind of anti-inclined to one side oil pick-up tube of claim 1, it is characterized in that: described abrasionproof pipe is made by high-abrasive material, and length surpasses 1000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200810554U CN201460754U (en) | 2009-05-21 | 2009-05-21 | Sucker rod with eccentric wear prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200810554U CN201460754U (en) | 2009-05-21 | 2009-05-21 | Sucker rod with eccentric wear prevention |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201460754U true CN201460754U (en) | 2010-05-12 |
Family
ID=42388108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200810554U Expired - Fee Related CN201460754U (en) | 2009-05-21 | 2009-05-21 | Sucker rod with eccentric wear prevention |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201460754U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670288A (en) * | 2013-09-18 | 2014-03-26 | 陈伟琛 | Internal surface local hardening (alloying) eccentric wear prevention oil pipe |
| CN104295244A (en) * | 2014-09-30 | 2015-01-21 | 胜利油田胜机石油装备有限公司 | Combined antiseptic and wear-resistant sucker rod |
| CN110130858A (en) * | 2019-06-12 | 2019-08-16 | 克拉玛依胜利高原机械有限公司 | A kind of bridge-type note takes out wear-and corrosion-resistant drop and joins integrated lifting technology and computer collecting system |
-
2009
- 2009-05-21 CN CN2009200810554U patent/CN201460754U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670288A (en) * | 2013-09-18 | 2014-03-26 | 陈伟琛 | Internal surface local hardening (alloying) eccentric wear prevention oil pipe |
| CN104295244A (en) * | 2014-09-30 | 2015-01-21 | 胜利油田胜机石油装备有限公司 | Combined antiseptic and wear-resistant sucker rod |
| CN110130858A (en) * | 2019-06-12 | 2019-08-16 | 克拉玛依胜利高原机械有限公司 | A kind of bridge-type note takes out wear-and corrosion-resistant drop and joins integrated lifting technology and computer collecting system |
| CN110130858B (en) * | 2019-06-12 | 2023-09-22 | 克拉玛依胜利高原机械有限公司 | Bridge type injection-extraction wear-resistant corrosion-resistant ginseng-lowering integrated lifting process and mechanical system |
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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: 20100512 Termination date: 20100521 |