CN103334705A - Novel sucker rod centering device - Google Patents
Novel sucker rod centering device Download PDFInfo
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- CN103334705A CN103334705A CN2013103308842A CN201310330884A CN103334705A CN 103334705 A CN103334705 A CN 103334705A CN 2013103308842 A CN2013103308842 A CN 2013103308842A CN 201310330884 A CN201310330884 A CN 201310330884A CN 103334705 A CN103334705 A CN 103334705A
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- rod
- centering
- centering device
- righting rod
- supporting positive
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Abstract
The invention relates to the technical field of a centering device for petroleum drilling, and in particular to a novel sucker rod centering device, which comprises a centering rod, an upper connector which is arranged on the upper part of the centering rod, a lower connector which is arranged on the lower part of the centering rod and a centering sleeve which is sleeved outside the middle part of the centering rod, wherein the outer diameter of the centering sleeve is greater than that of the centering rod. By adopting the structure, the centering sleeve which is made of a high-strength wear-resistant material is contacted with an oil pipe, a centering body is worn, the abrasion of the oil pipe is reduced, and the eccentric wear can be prevented. Moreover, the novel sucker rod centering device is strong in flexibility and is contacted with the inner wall of the oil pipe, the friction between the rod and the pipe can be reduced, and the oil recovery service life of an oil sucker can be prolonged.
Description
Technical field
The present invention relates to oil drilling erection device technical field, be specifically related to novel oil pumping rod centering device.
Background technology
Nowadays, the conventional oil pumping rod centering device of oil field extensive use has types such as rolling wheel centralizer, nylon centralizer.The roller oil pumping rod centering device is to rely on device upper roller and tube inner wall to form rolling friction pair to play the anti-attrition effect, in process of production, easily because the foreign material in the well liquid block roller, makes original rolling friction be transformed into sliding friction; And the nylon oil pumping rod centering device of prior art is up and down in oil pipe, because the elastic deformation of sucker rod, bar and tubing wall are easy to generate friction, is prone to sucker rod disconnected phenomenon of taking off easily.
Summary of the invention
The purpose of this invention is to provide a kind of supporting positive cover of high-strength abrasion-proof material that utilizes and contact, make the centralizer body wearing and tearing with oil pipe, and reduce the wearing and tearing of oil pipe, to reach the novel oil pumping rod centering device of purpose of anti-eccentric wear.
In order to solve the existing problem of background technology, the present invention is by the following technical solutions: novel oil pumping rod centering device, comprise righting rod, be located at the top connection on described righting rod top, the supporting positive cover of being located at the lower contact of described righting rod bottom and being socketed in the outside, described righting rod middle part, the external diameter of described supporting positive cover is greater than the external diameter of righting rod.
Further, described righting rod is the nylon righting rod.
Further, described supporting positive cover is nanometer polymerization engineering plastics supporting positive covers.
The present invention has following beneficial effect: novel oil pumping rod centering device of the present invention, mainly comprise righting rod, be located at the top connection on righting rod top, the supporting positive cover of being located at the lower contact of righting rod bottom and being socketed in the righting rod middle part outside, and the external diameter of supporting positive cover is greater than the external diameter of righting rod; The present invention adopts said structure, utilize the supporting positive cover of high-strength abrasion-proof material to contact, make the centralizer body wearing and tearing with oil pipe, and the wearing and tearing of minimizing oil pipe, to reach the purpose of anti-eccentric wear, and the present invention have pliability strong, contact with tube inner wall, can reduce the friction of bar and pipe, strengthen the oil recovery life-span of oil pumper.In addition, the present invention has characteristics such as reasonable in design, simple in structure, is applicable to the rod-pumped well of eccentric wear, the rod-pumped well and the deviated directional drilling that are particularly useful for the above eccentric wear of the sucker rod point of neutralization, below the sucker rod point of neutralization, cooperates with the nylon centralizer of oil pumping on the body of rod, prevent that the eccentric wear effect is better.
Description of drawings
Fig. 1 is structural representation of the present invention.
The specific embodiment
The present invention will be further described in detail below in conjunction with accompanying drawing.
As shown in Figure 1, novel oil pumping rod centering device, it is characterized in that, comprise righting rod 1, be located at the top connection 2 on described righting rod 1 top, the supporting positive cover 4 of being located at the lower contact 3 of described righting rod 1 bottom and being socketed in the described righting rod 1 middle part outside, the external diameter of described supporting positive cover 4 is greater than the external diameter of righting rod 1; In the present embodiment, can on righting rod, have helicla flute vertically, design like this, thus utilize liquid flow to reach the anticipation effect; In addition, but this righting rod, top connection and lower contact one-shot forming are convenient to easy to process like this; Present embodiment uses by on-the-spot, and is easy for operation, can effectively slow down eccentric wear, and the protection oil pipe prolongs pump detection period.
Wherein, described righting rod 1 is the nylon righting rod; Described supporting positive cover 4 is nanometer polymerization engineering plastics supporting positive covers, design like this, and it contacts with oil pipe and makes the centralizer body wearing and tearing, and reduces the wearing and tearing of oil pipe, to reach the purpose of anti-eccentric wear.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. novel oil pumping rod centering device, it is characterized in that, comprise righting rod (1), be located at the top connection (2) on described righting rod (1) top, the supporting positive cover (4) of being located at the lower contact (3) of described righting rod (1) bottom and being socketed in described righting rod (1) the middle part outside, the external diameter of described supporting positive cover (4) is greater than the external diameter of righting rod (1).
2. novel oil pumping rod centering device according to claim 1 is characterized in that, described righting rod (1) is the nylon righting rod.
3. novel oil pumping rod centering device according to claim 1 is characterized in that, described supporting positive cover (4) is nanometer polymerization engineering plastics supporting positive covers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103308842A CN103334705A (en) | 2013-08-01 | 2013-08-01 | Novel sucker rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103308842A CN103334705A (en) | 2013-08-01 | 2013-08-01 | Novel sucker rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103334705A true CN103334705A (en) | 2013-10-02 |
Family
ID=49242909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103308842A Pending CN103334705A (en) | 2013-08-01 | 2013-08-01 | Novel sucker rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103334705A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727758A (en) * | 2013-12-20 | 2015-06-24 | 盐城市华谊石油机械有限公司 | Nano-metal centralizer |
| CN108442889A (en) * | 2017-12-19 | 2018-08-24 | 中国石油天然气股份有限公司 | Rotating wear-resistant resistance absorber |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2315730A1 (en) * | 1999-08-06 | 2001-02-06 | Kudu Industries Inc. | Centralizer for sucker rod strings |
| CN2630471Y (en) * | 2003-05-01 | 2004-08-04 | 关志文 | Rapid-mounted paraffin-scraping type nylon sucker rod centralising device |
| CN200949451Y (en) * | 2006-08-30 | 2007-09-19 | 巴奥欢 | Multifunctional centering paraffin scraper fluid increasing device |
| CN200989171Y (en) * | 2006-02-07 | 2007-12-12 | 李永安 | Friction reducing and wear resisting sucker rod centralising casing |
| CN201972624U (en) * | 2011-01-21 | 2011-09-14 | 张海龙 | Pumping rod straightening device |
| CN202325298U (en) * | 2011-11-25 | 2012-07-11 | 大庆宏富来电气设备制造有限公司 | Screw pump sucker rod wear-resisting centering device |
-
2013
- 2013-08-01 CN CN2013103308842A patent/CN103334705A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2315730A1 (en) * | 1999-08-06 | 2001-02-06 | Kudu Industries Inc. | Centralizer for sucker rod strings |
| CN2630471Y (en) * | 2003-05-01 | 2004-08-04 | 关志文 | Rapid-mounted paraffin-scraping type nylon sucker rod centralising device |
| CN200989171Y (en) * | 2006-02-07 | 2007-12-12 | 李永安 | Friction reducing and wear resisting sucker rod centralising casing |
| CN200949451Y (en) * | 2006-08-30 | 2007-09-19 | 巴奥欢 | Multifunctional centering paraffin scraper fluid increasing device |
| CN201972624U (en) * | 2011-01-21 | 2011-09-14 | 张海龙 | Pumping rod straightening device |
| CN202325298U (en) * | 2011-11-25 | 2012-07-11 | 大庆宏富来电气设备制造有限公司 | Screw pump sucker rod wear-resisting centering device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104727758A (en) * | 2013-12-20 | 2015-06-24 | 盐城市华谊石油机械有限公司 | Nano-metal centralizer |
| CN108442889A (en) * | 2017-12-19 | 2018-08-24 | 中国石油天然气股份有限公司 | Rotating wear-resistant resistance absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131002 |