CN201650151U - Sucker rod centralizer - Google Patents
Sucker rod centralizer Download PDFInfo
- Publication number
- CN201650151U CN201650151U CN2010201385973U CN201020138597U CN201650151U CN 201650151 U CN201650151 U CN 201650151U CN 2010201385973 U CN2010201385973 U CN 2010201385973U CN 201020138597 U CN201020138597 U CN 201020138597U CN 201650151 U CN201650151 U CN 201650151U
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- roller
- centralizer
- sucker rod
- bearing
- rolling wheel
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Abstract
The utility model discloses a sucker rod centralizer, which is used for petroleum industry and is applicable to rod reciprocating pump oil extraction wells. The sucker rod centralizer of the utility model comprises a centralizer body and a rolling wheel assembly, wherein a rolling wheel shaft is arranged in the rolling wheel assembly, and a bearing is arranged between a rolling wheel and the rolling wheel shaft of the rolling wheel assembly, so the operation of the centralizer in an oil pipe is more smooth. Because the utility model reasonably utilizes the bearing, the operation of the centralizer is more smooth, the descending resistance of a sucker rod is smaller, and the goals of energy saving and consumption reduction can be realized. At the same time, the problem of upward moving of camber wearing points after the existing slide type sucker rod centralizer is used is perfectly solved, and the utility model has the effects of sucker rod centralization, oil pipe protection, energy saving and service life prolonging.
Description
Technical field
The utility model belongs to the oil recovery auxiliary equipment of petroleum industry sucker rod pump, and particularly a kind of oil pumping rod centering device has been applicable to bar reciprocating pump producing well.
Background technology
Along with oil field development, the particularly continuity of waterflooding extraction time, well water constantly rises, produced liquid in oil well is also progressively changed to Water-In-Oil, oil-in-water, water band oil by full oil, make in the sucker rod pumping process lubricant medium between pipe, the bar that the variation of essence has taken place, latter period of oilfield development sand production in oil has in addition further been aggravated the eccentric wear of pipe, bar.In recent years, each elephant has become the major issue of the efficient exploitation in restriction oil field because of the failed well number amount that pipe, bar eccentric wear cause rises year by year.Sucker rod is set upright the main means that then become present improvement pipe, bar eccentric wear, is extensive use of by each oil field development unit.
At the sucker rod pumping well, the method for administering pipe, the employing of bar eccentric wear mainly contains: 1, common roller type centralizer is set upright at present; 2, woollen goods centralizer is set upright; 3, the eccentric wear pair is set upright; 4, high density polyethylene (HDPE) oil pipe liner etc.Though said method has been obtained certain regulation effect, has the following disadvantages: 1, common roller type centralizer fails to solve the self-wear problem between roller and the roller shaft.Particularly high salinity, contain the existence of media such as sand, quickened the oneself's wearing and tearing between roller and the roller shaft; 2, woollen goods centralizer, eccentric wear pair, high density polyethylene (HDPE) oil pipe liner all wear and tear to replace tubes, bar with oneself's wearing and tearing, and oneself's wearing and tearing have aggravated the corrosion of centralizer, and application life is shorter.3, there is the problem of moving on the eccentric wear point in the slidingtype oil pumping rod centering device after using.
Summary of the invention
The purpose of this utility model provides a kind of oil pumping rod centering device, remedies prior art with the wear and tear deficiency of replace tubes, bar wearing and tearing of oneself, prolongs the application life of oil pumping rod centering device, solves sucker rod oil production well casing, bar eccentric wear problem effectively.
The present technique solution can reach above-mentioned purpose: a kind of oil pumping rod centering device comprises sets upright body and roller assembly, in the roller assembly roller shaft is housed, and between the roller of roller assembly and roller shaft bearing is housed, and makes the operation of centralizer in oil pipe more smooth and easy.
The utility model compared with prior art has following useful effect: because the utility model has rationally used bearing, make the centralizer operation more smooth and easy, the descending resistance of sucker rod is littler, has realized energy saving purposes.Simultaneously, solved existing slidingtype oil pumping rod centering device well and used the problem of moving on the eccentric wear point of back, had sucker rod and set upright, protect oil pipe, energy-conservation, the effect that increases the service life, specifically characteristics are as follows:
1, realized sucker rod setting upright in oil pipe, and reliable;
2, owing in the roller assembly bearing is housed, realized the effective conversion of sliding friction, effectively reduced friction factor, made its operation in oil pipe more smooth and easy to rolling friction;
3, since the utility model in oil pipe, move smooth and easy, solved existing centralizer with oneself wearing and tearing to the present situation that replace tubes, bar wear and tear, alleviated the etching problem of centralizer, obviously improved application life, prolonged oil well repair free period, can reduce production costs.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the schematic diagram that the roller assembly of waterproof roller bearing is housed.
Fig. 3 is the schematic diagram that the roller assembly of roller bearing is housed.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to Fig. 1, a kind of oil pumping rod centering device comprises sets upright body 1 and roller assembly 2, and roller shaft 3 is housed in the roller assembly 2, between the roller of roller assembly 2 and roller shaft 3 bearing is housed.The roller of roller assembly 2 comprises nonmetals 4 and roller skeleton 6, and roller skeleton 6 is arranged in the nonmetals 4, and the outside of roller is nonmetals 4.Roller assembly 2 of the present utility model has following two kinds of structures.
Embodiment 1: referring to Fig. 2, the bearing of installing between the roller of roller assembly 2 and roller shaft 3 is a waterproof roller bearing 5, sealing ring is equipped with at two ends at waterproof roller bearing 5, roller bearing has been played the effect of waterproof, sand prevention, effectively reduce the oneself's wearing and tearing and the corrosion of roller bearing and roller shaft 3, prolonged the application life of oil pumping rod centering device.The outside nonmetals 4 that adopt of the roller of roller assembly 2 are manufactured, and on the one hand, have increased the frictional resistance of roller assembly 2 with tube wall, make the rotation of roller assembly 2 in the centralizer running more smooth and easy; On the other hand, having reduced roller assembly 2 is in operation to damage and the oneself's wearing and tearing and the etching problem of oil pipe.
Embodiment 2: referring to Fig. 3, the bearing of installing between the roller of roller assembly 2 and roller shaft 3 is a roller bearing 7, is tight fit between roller bearing 7, nonmetals 4 and the roller skeleton 6.Roller skeleton 6 is inlaid in the nonmetals 4 in the present embodiment, the inner edge of nonmetals 4 has sealed the two ends of roller bearing 7, played the effect of waterproof, sand prevention, reduce the oneself's wearing and tearing and the etching problem of roller bearing 7 and roller shaft 3 effectively, prolonged the application life of oil pumping rod centering device.
Claims (4)
1. an oil pumping rod centering device comprises and sets upright body (1) and roller assembly (2), and roller shaft (3) is housed in the roller assembly (2), it is characterized in that between the roller of roller assembly (2) and roller shaft (3) bearing being housed.
2. a kind of oil pumping rod centering device according to claim 1, the roller that it is characterized in that roller assembly (2) comprises nonmetals (4) and roller skeleton (6), roller skeleton (6) is arranged in the nonmetals (4), and the outside of roller is nonmetals (4).
3. a kind of oil pumping rod centering device according to claim 1 and 2 is characterized in that the bearing of installing between the roller of roller assembly (2) and the roller shaft (3) is waterproof roller bearing (5), at the two ends of waterproof roller bearing (5) sealing ring is housed.
4. a kind of oil pumping rod centering device according to claim 1 and 2, it is characterized in that the bearing of installing between the roller of roller assembly (2) and the roller shaft (3) is roller bearing (7), be tight fit between roller bearing (7), nonmetals (4) and the roller skeleton (6), the inner edge of nonmetals (4) has sealed the two ends of roller bearing (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201385973U CN201650151U (en) | 2010-03-20 | 2010-03-20 | Sucker rod centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201385973U CN201650151U (en) | 2010-03-20 | 2010-03-20 | Sucker rod centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201650151U true CN201650151U (en) | 2010-11-24 |
Family
ID=43115383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201385973U Expired - Fee Related CN201650151U (en) | 2010-03-20 | 2010-03-20 | Sucker rod centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201650151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370899A (en) * | 2015-11-23 | 2016-03-02 | 佛山高富中石油燃料沥青有限责任公司 | Butterfly valve rod lengthening structure |
-
2010
- 2010-03-20 CN CN2010201385973U patent/CN201650151U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370899A (en) * | 2015-11-23 | 2016-03-02 | 佛山高富中石油燃料沥青有限责任公司 | Butterfly valve rod lengthening structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20120320 |