CN103510882A - Pumping rod centralizer - Google Patents
Pumping rod centralizer Download PDFInfo
- Publication number
- CN103510882A CN103510882A CN201310501938.7A CN201310501938A CN103510882A CN 103510882 A CN103510882 A CN 103510882A CN 201310501938 A CN201310501938 A CN 201310501938A CN 103510882 A CN103510882 A CN 103510882A
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- CN
- China
- Prior art keywords
- pumping rod
- main body
- rod centralizer
- horn
- wrapped
- 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.)
- Pending
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- Earth Drilling (AREA)
Abstract
The invention relates to a pumping rod centralizer used in an oil well. An upper joint is arranged at the upper of a main body; a trumpet-shaped liquid channel is formed in the main body; a lower joint is arranged at the opening of the liquid channel; the main body is wrapped up in an elastic seal body. According to the pumping rod centralizer, the main body is wrapped up in the elastic seal body, positions tending to generate stress are subjected to treatment in a centralized manner, the phenomenon of stress concentration is reduced, and the service life of the oil pipe is prolonged.
Description
Technical field
The present invention relates to a kind of oil well oil pumping rod centering device.
Background technology
Along with the appearance of deep-well and ultradeep well, sucker rod constantly lengthens, so that its eccentric wear degree is even more serious, and bar is disconnected, the de-phenomenon of bar occurs often, has had a strong impact on the normal production of oil well; Existing outer flow passage formula pumping-improvement centralizer of pumping rod is all without supporting the anti-bias heart function of seal receptacle, because sucker rod stressing conditions in reality use is complicated, very likely cause device deflection, cause the sealing of movable sealing body and support seal receptacle not tight, miss excessively, have a strong impact on production fluid amount.
Summary of the invention
The present invention is intended to propose.
Oil pumping rod centering device of the present invention, comprises body, and body top is provided with top connection, and body interior is provided with horn-like fluid passage, and the opening part of horn-like fluid passage connects lower contact, described external surface parcel elastic sealed body.
Oil pumping rod centering device of the present invention, has wrapped up in body exterior place that elastic sealed body easily produces stress to centralizer and has carried out concentrated place and handle accordingly, and reduces stress concentration phenomenon, has increased the application life of oil pipe.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
1-body in figure; 2-top connection; The horn-like fluid passage of 3-; 4-lower contact; 5-elastic sealed body.
The specific embodiment
Oil pumping rod centering device of the present invention, comprise body 1, body 1 top is provided with top connection 2, body 1 inside is provided with horn-like fluid passage 3, the opening part of horn-like fluid passage 3 connects lower contact 4, described body 1 external surface parcel elastic sealed body 5, and the place that centralizer is easily produced to stress has been carried out concentrated place and has been handled accordingly, reduce stress concentration phenomenon, increased the application life of oil pipe.
Claims (1)
1. oil pumping rod centering device, comprise body (1), body (1) top is provided with top connection (2), body (1) inside is provided with horn-like fluid passage (3), the opening part of horn-like fluid passage (3) connects lower contact (4), it is characterized in that: described body (1) external surface parcel elastic sealed body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501938.7A CN103510882A (en) | 2013-10-23 | 2013-10-23 | Pumping rod centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310501938.7A CN103510882A (en) | 2013-10-23 | 2013-10-23 | Pumping rod centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103510882A true CN103510882A (en) | 2014-01-15 |
Family
ID=49894247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310501938.7A Pending CN103510882A (en) | 2013-10-23 | 2013-10-23 | Pumping rod centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103510882A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727380A (en) * | 2019-10-14 | 2021-04-30 | 航天科工惯性技术有限公司 | Sealing centralizer for high-temperature wireless while-drilling system and high-temperature wireless while-drilling system |
-
2013
- 2013-10-23 CN CN201310501938.7A patent/CN103510882A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727380A (en) * | 2019-10-14 | 2021-04-30 | 航天科工惯性技术有限公司 | Sealing centralizer for high-temperature wireless while-drilling system and high-temperature wireless while-drilling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1193143 Country of ref document: HK |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |
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| REG | Reference to a national code |
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