CN2779040Y - Partial abrasion proof centralizer of pumping rod - Google Patents
Partial abrasion proof centralizer of pumping rod Download PDFInfo
- Publication number
- CN2779040Y CN2779040Y CN 200520023387 CN200520023387U CN2779040Y CN 2779040 Y CN2779040 Y CN 2779040Y CN 200520023387 CN200520023387 CN 200520023387 CN 200520023387 U CN200520023387 U CN 200520023387U CN 2779040 Y CN2779040 Y CN 2779040Y
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- CN
- China
- Prior art keywords
- sucker rod
- roller
- centralizing
- oil
- upright
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Abstract
The utility model relates to a technique of oil field oil production technology, particularly an eccentric wear preventing centralizer for a sucker rod in an oil pumping well. The utility model comprises a nylon centralizing sleeve and centralizing rollers, wherein the four bearing type centralizing rollers which are spirally arranged and orderly form 90 DEG angles are arranged in the nylon centralizing sleeve from top to bottom, the external round surfaces of the centralizing rollers form a concave arc shape which is the same as the radian of a rod body of a sucker rod, the rollers are installed in an upper oil inlet pipe and a lower oil inlet pipe of the sucker rod in a closed way, and the four centralizing rollers cause the sucker rod to be centered and have a supporting point from any angle on the axial elevation view; a body of the centralizing sleeve is a two-valve type composite structure, and fixing magnetic nail which cause the body of the centralizing sleeve to be adsorbed on the internal walls of the oil pipes are installed on the body of the centralizing sleeve. The eccentric wear preventing centralizer for the sucker rod can cause the sucker rod to be positioned at the center of the oil pipes all the time and not contacted with the internal walls of the oil pipes, and the oil pipes are ensured not to be eccentrically worn.
Description
Technical field:
The utility model relates to oil field oil production technology technology, the sucker rod deflection abrasion preventing centralizer in particularly a kind of rod-pumped well.
Background technology:
Sucker rod in the rod-pumped well is a polished rod, in oil pipe, do and pump, because the influence of factors such as hole deviation, lower curved section and body of rod bending, when not having erection device, can cause the sucker rod body of rod and tube inner wall generation eccentric wear phenomenon, the R a T that is worn can only be eliminated and change, the R a T of serious wear very easily causes rod parting and pipeline leak accident, need stop to produce and carry out pump detection and workover, behind the sucker rod or oil pipe that more renews, could continue to produce, thereby influence crude oil production.Oil pumping rod centering device designs for these reasons, present known oil pumping rod centering device mainly is divided into interconnection system and body adds the wiper block dual mode, adopt high-abrasive material to make centralizer body with sucker rod is synchronized with the movement, and with oil duct in wall friction or rolling play the effect of setting upright sucker rod.Facts have proved that there is following defective in the centralizer of said structure: one, the high-abrasive material of centralizer body, actual wear is bigger than its theoretical value, long-term rub relative with oil pipe, the centralizer body wearing and tearing more still can cause eccentric wear; Its two, it is many more to add centralizer, oil pumper load increases big more, causes electric current to increase, sucker rod fatigue very easily has an accident; Its three, be difficult for to install, increase labor strength.
Summary of the invention:
Goal of the invention of the present utility model is intended to solve the above-mentioned defective that known oil pumping rod centering device exists, and makes sucker rod be in the oil pipe center all the time and does not contact with tube inner wall and provide a kind of, guarantees that oil pipe is not by the sucker rod deflection abrasion preventing centralizer of eccentric wear.
The technical scheme that realizes the foregoing invention purpose is: this sucker rod deflection abrasion preventing centralizer comprises the nylon supporting positive cover, sets upright roller, be provided with from top to bottom formula arrangement in the shape of a spiral in this nylon supporting positive cover, become four bearing-types of an angle of 90 degrees to set upright roller successively, this is set upright the roller outer round surface and is concave arc shape and identical with sucker rod body of rod radian, closure is installed in and is lowered in the oil pipe on the sucker rod, on axial upright projection, set upright roller for four and make sucker rod between two parties and at unspecified angle one strong point be arranged all; This sets upright body is two lobe formula combining structures, and the fixedly magnetic nail that makes it to be adsorbed on the tube inner wall is housed on it.
According to described this sucker rod deflection abrasion preventing centralizer of this case, when sucker rod moves up and down, must there be one or more bearing-types to set upright roller and can make relative rotary motion with it.Adopt bearing-type to set upright roller structure, make sucker rod pump to drive that setting upright roller rotatablely moves as ball on axostylus axostyle, and lubricating fluid is arranged, wearing and tearing can be reduced to minimum, and can not drive centralizer body and be synchronized with the movement with it, therefore can not increase load.From top to bottom in the shape of a spiral formula install set upright roller, can guarantee that oil well liquid is flowing through the unit cross-sectional area maximum of centralizer, and be far longer than the sectional area that the joint hoop place fluid of sucker rod passes through, can not hinder fluid and pass through centralizer body.
In sum, the utility model is compared background technology, has following good effect: one, and can make sucker rod be in the oil pipe center, the eccentric wear phenomenon can not take place; Its two, the load of oil pumper does not increase because of increasing of centralizer, is far longer than pump detection period the application life of centralizer, reduces cost of crude oil production, increases economic efficiency; Its three, install and dismounting easily simple, alleviated working strength of workers.
Description of drawings:
Fig. 1 is the structural representation under the projection of the utility model C-D section.
Fig. 2 is the structural representation under the projection of the utility model E-F section.
The specific embodiment:
Provide a specific embodiment of the present utility model below in conjunction with accompanying drawing.
The described sucker rod deflection abrasion preventing centralizer of present embodiment is by nylon supporting positive cover 1, fixedly the magnetic nail 2, rolling wheel support 3, axostylus axostyle 4, roller 5, bowl ring 6, roller bearing 7, draining passage 8 is formed, be provided with from top to bottom formula arrangement in the shape of a spiral in this nylon supporting positive cover 1, become four bearing-types of an angle of 90 degrees to set upright roller successively, this bearing-type is set upright roller by roller 5, rolling wheel support 3, axostylus axostyle 4, roller bearing 7, bowl ring 6 is formed, these rolling wheel support 3 bottoms are fixed with setting upright body 1, and this bowl ring 6 of shutoff roller bearing 7 is housed on the axostylus axostyle 4 at these roller 5 two ends.Described roller 5 outer round surface of setting upright are concave arc shape and identical with the sucker rod body of rod 9 radians, and closure is installed on the sucker rod 9 and is lowered in the oil pipe, on axial upright projection, set upright roller 5 for four and make sucker rod 9 between two parties and at unspecified angle one strong point be arranged all; This supporting positive cover 1 body is two lobe formula combining structures, two lobes about being divided into by the AB line, and its main part is tubular, and two ends are the tapered box frame structure with draining passage 8, and the fixedly magnetic nail 2 that makes it to be adsorbed on the tube inner wall is housed on its cylindrical body.
During practical application, this sucker rod deflection abrasion preventing centralizer is to install and use on one or a few sucker rod of eccentric wear section.Be lowered in the oil pipe, because the fixedly effect of magnetic nail 2, supporting positive cover 1 body is adsorbed on the tube inner wall, sucker rod 9 is under the effect of lateral force, and one or several bearing-type that is attached to centralizer is set upright and done on the roller when pumping, and bearing-type is set upright roller and done corresponding rotation with it, like this, all can form the effect of rolling and supporting in any orientation, remain sucker rod 9 and do not contact, guarantee that oil pipe is not by eccentric wear with tube inner wall.
Claims (3)
1, a kind of sucker rod deflection abrasion preventing centralizer, comprise the nylon supporting positive cover, set upright roller, it is characterized in that being provided with from top to bottom in this nylon supporting positive cover formula arrangement in the shape of a spiral, become four bearing-types of an angle of 90 degrees to set upright roller successively, this is set upright the roller outer round surface and is concave arc shape and identical with sucker rod body of rod radian, closure is installed in and is lowered in the oil pipe on the sucker rod, on axial upright projection, set upright roller for four and make sucker rod between two parties and at unspecified angle one strong point be arranged all; This sets upright body is two lobe formula combining structures, and the fixedly magnetic nail that makes it to be adsorbed on the tube inner wall is housed on it.
2, sucker rod deflection abrasion preventing centralizer according to claim 1, it is characterized in that this bearing-type sets upright roller and be made up of roller, rolling wheel support, axostylus axostyle, roller bearing, bowl ring, this rolling wheel support bottom with set upright body and fix, this bowl ring of shutoff roller bearing is housed on the axostylus axostyle at these roller two ends.
3, sucker rod deflection abrasion preventing centralizer according to claim 1 is characterized in that this sets upright its main part of body and be tubular, and two ends are the tapered box frame structure with draining passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520023387 CN2779040Y (en) | 2005-01-18 | 2005-01-18 | Partial abrasion proof centralizer of pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520023387 CN2779040Y (en) | 2005-01-18 | 2005-01-18 | Partial abrasion proof centralizer of pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779040Y true CN2779040Y (en) | 2006-05-10 |
Family
ID=36753129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520023387 Expired - Fee Related CN2779040Y (en) | 2005-01-18 | 2005-01-18 | Partial abrasion proof centralizer of pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779040Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968614A (en) * | 2017-05-04 | 2017-07-21 | 陈建军 | The identification method of sucker rod and centralizer |
| CN108397140A (en) * | 2018-03-26 | 2018-08-14 | 杨颖辉 | Oil pipe righting mechanism and application its closed oil pipe outside cut device |
| CN108491672A (en) * | 2018-04-19 | 2018-09-04 | 西南石油大学 | A kind of oil pumping in oil fields bar eccentric wear-proof process scheme |
| CN112145078A (en) * | 2020-09-03 | 2020-12-29 | 福建亿钻机械有限公司 | Drill rod guiding device of horizontal directional drilling machine |
| CN112211571A (en) * | 2020-10-11 | 2021-01-12 | 德州元昊石油装备有限公司 | Rotary wear-resistant and corrosion-resistant three-cambered-surface sucker rod centralizer |
| CN112459731A (en) * | 2020-12-21 | 2021-03-09 | 青岛泰众能源技术有限公司 | Automatic centering stabilizer for oil rod |
-
2005
- 2005-01-18 CN CN 200520023387 patent/CN2779040Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968614A (en) * | 2017-05-04 | 2017-07-21 | 陈建军 | The identification method of sucker rod and centralizer |
| CN108397140A (en) * | 2018-03-26 | 2018-08-14 | 杨颖辉 | Oil pipe righting mechanism and application its closed oil pipe outside cut device |
| CN108397140B (en) * | 2018-03-26 | 2023-06-16 | 牡丹江市新安石油钻采工具配件厂 | Oil pipe righting mechanism and closed oil pipe external cutting device applying same |
| CN108491672A (en) * | 2018-04-19 | 2018-09-04 | 西南石油大学 | A kind of oil pumping in oil fields bar eccentric wear-proof process scheme |
| CN112145078A (en) * | 2020-09-03 | 2020-12-29 | 福建亿钻机械有限公司 | Drill rod guiding device of horizontal directional drilling machine |
| CN112211571A (en) * | 2020-10-11 | 2021-01-12 | 德州元昊石油装备有限公司 | Rotary wear-resistant and corrosion-resistant three-cambered-surface sucker rod centralizer |
| CN112459731A (en) * | 2020-12-21 | 2021-03-09 | 青岛泰众能源技术有限公司 | Automatic centering stabilizer for oil rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |