CN202194584U - Eccentric-wear-preventing steel ball stabilizer - Google Patents
Eccentric-wear-preventing steel ball stabilizer Download PDFInfo
- Publication number
- CN202194584U CN202194584U CN2011202555891U CN201120255589U CN202194584U CN 202194584 U CN202194584 U CN 202194584U CN 2011202555891 U CN2011202555891 U CN 2011202555891U CN 201120255589 U CN201120255589 U CN 201120255589U CN 202194584 U CN202194584 U CN 202194584U
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- ball
- steel balls
- steel
- stabilizer
- phi
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Abstract
The utility model provides an eccentric-wear-preventing steel ball stabilizer. The technical scheme adopted by the stabilizer is that 12 phi 18 steel balls are arranged inside hemispheric holes on the external surface of the eccentric-wear-preventing steel ball stabilizer rod body in a regular way; two phi 10 steel beads are equipped inside a communicating hole between two opposed hemispheric holes; the phi 18 steel balls are covered by ball cover joints; the ball cover joints and the rod body are welded through advanced technologies to prevent the steel balls from coming out of the ball covers; and meanwhile the steel balls can freely rotate inside the ball cover joints and the rod body. By adopting the above-mentioned technical scheme, the stabilizer in the utility model is enabled to generate rolling friction between the 12 phi 18 steel balls and the inner wall of an oil pipe due to the rotation of the steel balls when a sucker rod performs reciprocating vertical motion for pumping oil. The problem existing in the prior art and characterized by strong sliding friction resistance between a nylon sleeve and an oil pipe inner wall is solved. Furthermore, the aim of improving working efficiency and reducing energy consumption is achieved.
Description
Technical field
The utility model is the sliding friction that a kind of rolling friction with steel ball replaces conventional nylon body, significantly reduces the frictional resistance between sucker rod and the tube inner wall, reduces the pulling force that sucker rod carries, thereby makes sucker rod more permanent, durable; And tube inner wall frictional resistance is reduced, prolonged the application life of oil pipe.
Technical background
At present, the oil pumping rod centering device that many oil field units use is the nylon body centralizer, in oil pumping process; Crude oil sticks on the nylon body, and the force of sliding friction between nylon body and tube inner wall is increased greatly, influence oil pumping benefit; Particularly in the horizontal well, because the weight of sucker rod self, the more moving sucker rod of hard-pumped; One side of oily wall inwall is galled more easily simultaneously, significantly reduces oil yield efficiency.
It is higher that the utility model purpose is to innovate a kind of efficient, and durable in use, and moderate product more can be fit to the use of horizontal well, thereby realize safety operation, reduces labour intensity, enhances productivity the purpose that energy conservation consumes.
The utility model content
In order to solve the problem in the background technology, the utility model provides a kind of anti-eccentric wear steel ball centralizer, replaces the sliding friction of nylon body with the rolling friction of steel ball, enhances productivity, and increases the service life.The utility model solves the technical scheme that its technical problem adopted: on the external surface of the centralizer body of rod, and 12 hemispherical aperture that distribute regularly, per two holes are relative; And two relative hole intermediate connections, the steel ball of 2 φ 10 of installation is respectively settled φ 18 steel balls in the intercommunicating pore in hemispherical aperture; Cover φ 18 steel balls with the ball cover joint, adopt advanced welding procedure between the ball cover joint and the body of rod, steel ball can not be scurried out from ball cover; When two relative steel balls were stressed, steel ball was passed to pressure on the steel ball, rather than acts directly in the hemispherical aperture; Change the sliding friction between steel ball and the hemispherical aperture into rolling friction, sucker rod is on back and forth
In the following oil pumping process, a plurality of steel balls and the tube inner wall generation rolling friction of anti-eccentric wear steel ball centralizer replace the sliding friction of conventional nylon body; Reducing of frictional resistance; Alleviate the load of sucker rod and oil pumper, improved the operating efficiency of oil pumper, reduced energy consumption.
The utlity model has following beneficial effect: the distributing evenly, regularly of a plurality of steel balls; Reach the purpose of anti-eccentric wear, rolling friction simultaneously replaces sliding friction, the reducing of frictional resistance; Alleviate the load of oil pumper and reduce wearing and tearing, thereby reduce production costs tube inner wall.Reach the purpose of cost efficiency.
Description of drawings
Accompanying drawing is the half sectional view of the utility model:
Among the figure: 1, the body of rod 2, φ 18 steel balls 3, ball cover joint 4, φ 10 steel balls
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further: shown in accompanying drawing, this anti-eccentric wear steel ball centralizer comprises the body of rod 1, presses pattern requirement on the body of rod 1; 12 hemispherical aperture that distribute regularly, and relative two hole intermediate connections, steel ball 4 is installed in two pairs of hole center-aisles; And steel ball 2 is installed in 12 hemispherical aperture, and ball cover joint 3 is welded direct on the body of rod 1 after blocking steel ball 2, and steel ball 2 can rotate freely in ball cover joint 3; During reality oil pumping operation, the body of rod 1 is connected with sucker rod, is connected in the down-hole oil tube; Gap between steel ball 2 and the tube inner wall will be balanced, reaches anti-eccentric wear purpose, and the frictional resistance between steel ball 2 and the tube inner wall; Rotate in the time of invar ball 2 and steel ball 4 and reduce greatly, improved operating efficiency.
Claims (1)
1. anti-eccentric wear steel ball centralizer; It is characterized in that: the external surface that is arranged in anti-eccentric wear steel ball centralizer body with 12 φ 18 steel balls regularly; Cover φ 18 steel balls with the ball cover joint; Adopt advanced welding procedure welding between the ball cover joint and the body of rod, steel ball can not be scurried out from ball cover, and steel ball rotates freely in the ball cover joint and the body of rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202555891U CN202194584U (en) | 2011-07-11 | 2011-07-11 | Eccentric-wear-preventing steel ball stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202555891U CN202194584U (en) | 2011-07-11 | 2011-07-11 | Eccentric-wear-preventing steel ball stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202194584U true CN202194584U (en) | 2012-04-18 |
Family
ID=45949501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202555891U Expired - Fee Related CN202194584U (en) | 2011-07-11 | 2011-07-11 | Eccentric-wear-preventing steel ball stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202194584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670295A (en) * | 2012-09-03 | 2014-03-26 | 盐城市华谊石油机械有限公司 | Anti-eccentric steel ball centering device |
-
2011
- 2011-07-11 CN CN2011202555891U patent/CN202194584U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670295A (en) * | 2012-09-03 | 2014-03-26 | 盐城市华谊石油机械有限公司 | Anti-eccentric steel ball centering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20170711 |