CN103670298A - Sucker rod centering device - Google Patents
Sucker rod centering device Download PDFInfo
- Publication number
- CN103670298A CN103670298A CN201310494308.1A CN201310494308A CN103670298A CN 103670298 A CN103670298 A CN 103670298A CN 201310494308 A CN201310494308 A CN 201310494308A CN 103670298 A CN103670298 A CN 103670298A
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- CN
- China
- Prior art keywords
- valve
- centering device
- valve seat
- rod 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 relates to a sucker rod centering device for oil wells. The sucker rod centering device comprises a body. A liquid channel is arranged in the body, a valve body is further arranged in the body and divides the liquid channel into two parts, the valve body comprises a valve seat and a valve ball matched with the valve seat, the valve seat is fixed inside the body, a through hole communicated with the liquid channel is formed in the valve seat, the valve ball is movably arranged on the upper portion of the valve body, and the diameter of the valve ball is larger than or equal to that of the through hole of the liquid channel. The sucker rod centering device is simple in structure and strong in practicability.
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; In addition, in the later stage of oilfield exploitation, water content in crude oil rolls up, and the working environment of sucker-rod pumping system progressively worsens, side-abrasion of rod string aggravation, and pump efficiency reduces, thereby has caused a series of adverse consequences.
Summary of the invention
The present invention is intended to propose a kind of simple in structure, the oil pumping rod centering device that righting is effective.
Oil pumping rod centering device of the present invention, comprise body, in body, be provided with fluid passage, in body, be also provided with valve body, fluid passage is divided into two parts, described valve body comprises valve seat and the valve ball matching with it, valve seat is fixed on body interior, valve seat is provided with the through hole being connected with fluid passage, and valve ball is movably arranged on valve body top, and its diameter is more than or equal to the through hole of fluid passage.
Oil pumping rod centering device of the present invention, simple in structure, practicality is stronger.
Accompanying drawing explanation
Fig. 1 is sectional view of the present invention.
1-body in figure; 2-fluid passage; 3-valve seat; 4-valve ball.
The specific embodiment
Oil pumping rod centering device of the present invention, comprise body 1, in body 1, be provided with fluid passage 2, in body 1, be also provided with valve body, fluid passage 2 is divided into two parts, the valve ball 4 that described valve body comprises valve seat 3 and matches with it, valve seat 3 is fixed on body 1 inside, valve seat 3 is provided with the through hole being connected with fluid passage 2, and valve ball 4 is movably arranged on valve body top, and its diameter is more than or equal to the through hole of fluid passage 2.During use, body 1 is sealedly connected in oil pick-up tube, during down stroke, fluid enters the internal cavities of pumping-improvement centralizer of pumping rod from oil-in, by liquid stream lifting force, opens valve ball 4, is communicated with fluid course, and fluid is discharged from oil-out; During upstroke, valve ball 4 is pressed at oil column.Under the effect of power, close, block fluid course, realize improvement centralizer of pumping with the up of rod string and carry oil.Meanwhile, due to the sealing function of pumping-improvement centralizer of pumping rod and tubing wall, share part fluid column load, thereby improved the stressing conditions of rod string and oil pump plunger piston, effectively prevented that bar is disconnected, the de-phenomenon of bar, contributed to the raising of pump efficiency.
Claims (1)
1. oil pumping rod centering device, it is characterized in that: comprise body (1), in body (1), be provided with fluid passage (2), body is also provided with valve body in (1), fluid passage (2) is divided into two parts, the valve ball (4) that described valve body comprises valve seat (3) and matches with it, valve seat (3) is fixed on body (1) inside, valve seat (3) is provided with the through hole being connected with fluid passage (2), valve ball (4) is movably arranged on valve body top, and its diameter is more than or equal to the through hole of fluid passage (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310494308.1A CN103670298A (en) | 2013-10-21 | 2013-10-21 | Sucker rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310494308.1A CN103670298A (en) | 2013-10-21 | 2013-10-21 | Sucker rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103670298A true CN103670298A (en) | 2014-03-26 |
Family
ID=50308988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310494308.1A Pending CN103670298A (en) | 2013-10-21 | 2013-10-21 | Sucker rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103670298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952392A (en) * | 2016-05-17 | 2016-09-21 | 铁岭米勒石油新材料有限公司 | Auxiliary oil pumping amplifier |
-
2013
- 2013-10-21 CN CN201310494308.1A patent/CN103670298A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952392A (en) * | 2016-05-17 | 2016-09-21 | 铁岭米勒石油新材料有限公司 | Auxiliary oil pumping amplifier |
| CN105952392B (en) * | 2016-05-17 | 2019-01-25 | 铁岭米勒石油新材料有限公司 | A kind of auxiliary oil pumping synergistic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |
|
| WD01 | Invention patent application deemed withdrawn after publication |