CN102720442A - Sucker rod centralizer - Google Patents
Sucker rod centralizer Download PDFInfo
- Publication number
- CN102720442A CN102720442A CN2012102322871A CN201210232287A CN102720442A CN 102720442 A CN102720442 A CN 102720442A CN 2012102322871 A CN2012102322871 A CN 2012102322871A CN 201210232287 A CN201210232287 A CN 201210232287A CN 102720442 A CN102720442 A CN 102720442A
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- China
- Prior art keywords
- rod
- paraffin scraper
- oil pumping
- centering
- sucker rod
- 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.)
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Abstract
The invention discloses a sucker rod centralizer, which comprises a rod body, a positioning sleeve and a centralizing wax scraper, wherein one end of the rod body is in a male buckle structure, the other end of the rod body is in a female buckle structure, the centralizing wax scraper is sleeved in from the end with the male buckle structure, axial positioning is realized through screwing the positioning sleeve, the centralizing wax scraper is designed in a hollow-out structure, and the structure helps to improve the de-waxing effect and reduce the resistance produced when the sucker rod is moved up and down. The invention discloses the sucker rod centralizer which is reasonable in structural design and has an outstanding effect, the main body of the centralizing wax scraper on the sucker rod centralizer is designed in the hollow-out structure, the de-waxing performance is effectively improved while the good wax scraping effect is guaranteed by the structure, the working state of the sucker rod is more stable, and the long service life of a pumping unit is guaranteed.
Description
Technical field
The present invention relates to a kind of oil pumping rod centering device, relate in particular to that a kind of de-waxing effect is good, the oil pumping rod centering device of stable mechanical property, belong to oil accessory technical field.
Background technology
Sucker rod is up and down in oil pipe, because the elastic deformation of sucker rod, the R a T wall is easy to generate friction, and sucker rod is disconnected easily to be taken off, and is difficult for salvaging behind the entering oil pipe, influences production efficiency.For this reason, people have connected oil pumping rod centering device on sucker rod, and oil pumping rod centering device has that pliability is strong, rub resistance, characteristics such as corrosion-resistant, and it contacts with tube inner wall, can reduce the friction of sucker rod and oil pipe, the oil recovery life-span of enhancing oil pumper.
Along with the fast development of national economy, huge variation is also taking place in oil exploration industry on equipment and accessory.The structure of oil pumping rod centering device is also more and more various, is fit to the needs of various oil minings.But the performance of the sucker rod of existing oil pumping rod centering device aspect job stability and de-waxing is desirable not enough, remains further to be improved and perfect.
Summary of the invention
To the demand, the invention provides a kind of oil pumping rod centering device, the main body of the centering paraffin scraper on this oil pumping rod centering device adopts the engraved structure design, can give centering paraffin scraper good de-waxing performance, makes the duty of sucker rod more stable.
The present invention is a kind of oil pumping rod centering device; This oil pumping rod centering device comprises the body of rod, positioning sleeve and centering paraffin scraper; The described body of rod one end is the pin thread structure, and the other end is the box structure, and described centering paraffin scraper is inserted in from pin thread one end; Through screwing positioning sleeve to realize axial location, described centering paraffin scraper adopts the engraved structure design.
In the present invention's one preferred embodiment, described centering paraffin scraper main body is cylindric, is made up of left and right link and stack shell.
In the present invention's one preferred embodiment, around forming, there be gap in the stack shell of described centering paraffin scraper between the helix and the body of rod by many helixes.
In the present invention's one preferred embodiment, adopt matched in clearance between the left and right link of described centering paraffin scraper and the body of rod.
In the present invention's one preferred embodiment, the material of described centering paraffin scraper is the ceramic materials of high-wear resistance, and its preparation technology is a powder metallurgy.
The present invention has disclosed a kind of oil pumping rod centering device; This sucker rod reasonable in design; Effect is outstanding, and the main body of the centering paraffin scraper on it adopts the engraved structure design, and this structure has effectively improved the de-waxing performance when guaranteeing good paraffin cutting effect; Make the duty of sucker rod more stable, guaranteed the application life that oil pumper is good.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation:
Fig. 1 is an embodiment of the invention oil pumping rod centering device structural representation;
Fig. 2 is the structural representation of centering paraffin scraper in the embodiment of the invention oil pumping rod centering device;
The mark of each parts is following in the accompanying drawing: 1, the body of rod, 2, positioning sleeve, 3, centering paraffin scraper, 4, pin thread, 5, box, 6, left and right link, 7, stack shell.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
Fig. 1 is an embodiment of the invention oil pumping rod centering device structural representation; Fig. 2 is the structural representation of centering paraffin scraper in the embodiment of the invention oil pumping rod centering device; This oil pumping rod centering device comprises the body of rod 1, positioning sleeve 2 and centering paraffin scraper 3; The described body of rod 1 one ends are pin thread 4 structures, and the other end is box 5 structures, and described centering paraffin scraper 3 is inserted in from pin thread 4 one ends; Through screwing positioning sleeve 2 to realize axial location; Described centering paraffin scraper 3 adopts the engraved structure design, and this structure helps improving the de-waxing effect, the resistance when the reduction sucker rod moves up and down.
Centering paraffin scraper 3 main bodys of the oil pumping rod centering device of mentioning among the present invention are cylindric, are made up of with stack shell 7 left and right link 6; Wherein, around forming, there be gap in the stack shell 7 of centering paraffin scraper 3 between the helix and the body of rod 1 by many helixes, can effectively improve the de-waxing effect; Adopt matched in clearance between the left and right link 6 of centering paraffin scraper 3 and the body of rod 1, simultaneously, cooperate the use of positioning sleeve 2 can realize good circumferential fixed effect, prevent that centering paraffin scraper 3 under the drag effect transfer phenomenon taking place outside, reduce the paraffin cutting effect.
The material of the centering paraffin scraper 3 that the present invention mentions is the ceramic materials of high-wear resistance, and its preparation technology is a powder metallurgy; This material is also given its excellent abrasive ability and corrosion resisting property when effectively guaranteeing centering paraffin scraper 5 intensity and hardness, make its application life more lasting, has reduced the cost of production of oil exploration industry to a certain extent, has improved production efficiency.
The present invention has disclosed a kind of oil pumping rod centering device; Be characterized in: this sucker rod reasonable in design; Effect is outstanding, and the main body of the centering paraffin scraper on it adopts the engraved structure design, and this structure has effectively improved the de-waxing performance when guaranteeing good paraffin cutting effect; Make the duty of sucker rod more stable, guaranteed the application life that oil pumper is good.
The above; Be merely the specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any those of ordinary skill in the art are in the technical scope that the present invention disclosed, and variation or the replacement that can expect without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. oil pumping rod centering device; This oil pumping rod centering device comprises the body of rod, positioning sleeve and centering paraffin scraper, it is characterized in that, the described body of rod one end is the pin thread structure; The other end is the box structure; Described centering paraffin scraper is inserted in from pin thread one end, and through screwing positioning sleeve to realize axial location, described centering paraffin scraper adopts the engraved structure design.
2. oil pumping rod centering device according to claim 1 is characterized in that, described centering paraffin scraper main body is cylindric, is made up of left and right link and stack shell.
3. oil pumping rod centering device according to claim 2 is characterized in that, around forming, there be gap in the stack shell of described centering paraffin scraper between the helix and the body of rod by many helixes.
4. oil pumping rod centering device according to claim 2 is characterized in that, adopts matched in clearance between the left and right link of described centering paraffin scraper and the body of rod.
5. oil pumping rod centering device according to claim 1 is characterized in that, the material of described centering paraffin scraper is the ceramic materials of high-wear resistance, and its preparation technology is a powder metallurgy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102322871A CN102720442A (en) | 2012-07-06 | 2012-07-06 | Sucker rod centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102322871A CN102720442A (en) | 2012-07-06 | 2012-07-06 | Sucker rod centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102720442A true CN102720442A (en) | 2012-10-10 |
Family
ID=46946291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102322871A Pending CN102720442A (en) | 2012-07-06 | 2012-07-06 | Sucker rod centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102720442A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539037A (en) * | 2020-12-29 | 2021-03-23 | 田飞 | Sucker rod centralizer in oil recovery well |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376529Y (en) * | 1999-05-14 | 2000-05-03 | 胜利石油管理局临盘采油厂 | Rotatable stabilizing wax scraper |
| CN2670582Y (en) * | 2003-12-02 | 2005-01-12 | 杨金泽 | Stabilizer with rotary nylon remover of wax to nicrease yield |
| CN2864074Y (en) * | 2006-01-23 | 2007-01-31 | 谷鹏飞 | Two-side wax scraping centralizer |
| CN200949451Y (en) * | 2006-08-30 | 2007-09-19 | 巴奥欢 | Multifunctional centering paraffin scraper fluid increasing device |
| CN201236639Y (en) * | 2008-03-24 | 2009-05-13 | 程佑富 | Helical fixed pumping rod bias-wearing preventer |
-
2012
- 2012-07-06 CN CN2012102322871A patent/CN102720442A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2376529Y (en) * | 1999-05-14 | 2000-05-03 | 胜利石油管理局临盘采油厂 | Rotatable stabilizing wax scraper |
| CN2670582Y (en) * | 2003-12-02 | 2005-01-12 | 杨金泽 | Stabilizer with rotary nylon remover of wax to nicrease yield |
| CN2864074Y (en) * | 2006-01-23 | 2007-01-31 | 谷鹏飞 | Two-side wax scraping centralizer |
| CN200949451Y (en) * | 2006-08-30 | 2007-09-19 | 巴奥欢 | Multifunctional centering paraffin scraper fluid increasing device |
| CN201236639Y (en) * | 2008-03-24 | 2009-05-13 | 程佑富 | Helical fixed pumping rod bias-wearing preventer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112539037A (en) * | 2020-12-29 | 2021-03-23 | 田飞 | Sucker rod centralizer in oil recovery well |
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| 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: 20121010 |