CN201386517Y - Clamp type centralizer - Google Patents
Clamp type centralizer Download PDFInfo
- Publication number
- CN201386517Y CN201386517Y CN200920095703U CN200920095703U CN201386517Y CN 201386517 Y CN201386517 Y CN 201386517Y CN 200920095703 U CN200920095703 U CN 200920095703U CN 200920095703 U CN200920095703 U CN 200920095703U CN 201386517 Y CN201386517 Y CN 201386517Y
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- CN
- China
- Prior art keywords
- centralizer
- clamp type
- sucker rod
- angle
- utility
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a clamp type centralizer which comprises a centralizer body with the outer surface longitudinally provided with a positioning support rod and a through groove. The clamp type centralizer is characterized in that the centralizer body takes the shape of a jujube pit and two ends thereof are provided with guiding angles of 60-68 degrees. The clamp type centralizer has the beneficial effects: an upper centralizer and a lower centralizer are adopted to form a group and are fixed on a sucker rod with the included angle thereof being 90 degrees, thus playing the role of directional diversion to the liquid in a pipe column; and two ends of the centralizer body are provided with the guiding angles, thus reducing the impact load of the liquid column to the end face of the centralizer and better protecting the sucker rod.
Description
Technical field
The utility model belongs to the erection device of oil pumper and the supporting anti-eccentric wear of sucker rod, relates in particular to a kind of clamping hoop type centralizer that sucker rod and oil pipe body is gone to have protective effect.
Background technology
The oil pumping rod centering device of oil pumper and the supporting anti-eccentric wear of sucker rod has a variety of in the petroleum industry.Centralizer commonly used is the purpose that reaches the centralizer that is locked by its endoporus and the mutual interference size of sucker rod external diameter, because it does not axially produce power, so axial locking power does not reach the ministry standard more than or equal to 3KN at all.Traditional centralizer is easily play and displacement even come off significantly on sucker rod, causes the oil pumper oil circuit to stop up or stuck serious problems generation.In order to address the above problem, there is technology to adopt a kind of method that strengthens nylon 66-120 millimeter casting type centralizer that adopts, because it is 230 degree-280 degree that casting needs the cast temperature of technology, then cause the local gold picture of sucker rod body of rod tissue to change, reduce the intensity of original steel body, in use easily caused rod broken or disconnected bar; Simultaneously because the end face of this centralizer is that the plane adds 45 ° of chamferings, it is up and down with oil pumper jig frequency (3～9 times/minute) in oil pipe, because end face is the plane, be subjected to that liquid influences in the tubing string, the per minute fluid column is the several times of jig frequency to the impact number of times of upper and lower end face, owing to causing disconnected bar phenomenon, the sucker rod discontinuity equalization happens occasionally, and be example only with the Dagang Oilfield oil extraction No.1 Factory, more than annual nearly 15 wells of this type of disconnected bar accident were inferior, the economic loss that causes reached more than 3,000,000 yuan.
The utility model content
The purpose of this utility model is intended to solve above-mentioned technical barrier, and a kind of clamping hoop type centralizer is provided, and it makes, and liquid plays guide functions in the tubing string, has reduced fluid column the shock loading of centralizer end face and sucker rod is fallen, and reduces the incidence of disconnected bar.
For realizing the purpose of this utility model, the technical scheme that is adopted is a kind of clamping hoop type centralizer, comprises centralizer body, and the centralizer body external surface vertically is provided with the positioning supports muscle and crosses oil groove, it is characterized in that: the centralizer body shape is jujube nuclear shape, and it is 60～68 channelization angle that two ends are provided with angle.
Described centralizer is formed one group by two centralizers up and down, and two centralizers are 90 ° of angle cross fixation mutually along its axis on the same group.
The beneficial effects of the utility model are: two centralizers are formed one group about adopting, and every group of two centralizers are 90 ° and are fixed on the sucker rod, can play the effect of branch to water conservancy diversion to liquid in the tubing string; The centralizer body two ends are provided with channelization angle, can reduce the shock loading of fluid column to the centralizer end face, and sucker rod is played a good protection.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is one group of the utility model scheme of installation;
Fig. 4 is that the A of Fig. 3 is to view.
The specific embodiment
Accompanying drawing is embodiment of the present utility model, describes the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing.
A kind of clamping hoop type centralizer comprises centralizer body 1, and the centralizer body external surface vertically is provided with positioning supports muscle 2 and crosses oil groove 3, and the centralizer body shape is jujube nuclear shape, and it is 60～68 channelization angle 4 that two ends are provided with angle.Described centralizer is formed one group by two centralizers up and down, and two centralizers are 90 ° of angle cross fixation on sucker rod 5 mutually along its axis on the same group.Centralizer body adopts novel enhanced nylon 66.
Operating principle: two centralizers are 90 ° of angle cross fixation on sucker rod mutually along its axis on the same group, make the brace rod on the centralizer body and cross the oil guide groove that oil groove forms several large helix angles, can play the effect of branch to water conservancy diversion to liquid in the tubing string; This centralizer adopts 3～4 groups at sucker rod and evenly distributes.It is 60～68 channelization angle that two ends are provided with angle, can reduce the shock loading of fluid column to the centralizer end face, and sucker rod is played a good protection.
Result of use:
This centralizer uses nearly 200 wells to use in Dagang Oilfield oil extraction No.1 Factory, five factories and six factories, prolongs the average pump detection period of oil well more than 1.5 times, and accumulative total is nearly 1,000 ten thousand yuan of above-mentioned three oil recovery factory's save operation expenses.With 10-45 well in the oil extraction No.1 Factory is example, it is 45 days that this well uses the average pump detection period of old-fashioned centralizer, use novel centralizer, produced at present 245 days, save 22.5 ten thousand yuan of inspection pump expenses, reduce 135 tons of production losses, by 2000 yuan of calculating of crude oil per ton, the cost that the minimizing production loss causes is a 225000+135*2000=495000 unit.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1, a kind of clamping hoop type centralizer comprises centralizer body, and the centralizer body external surface vertically is provided with the positioning supports muscle and crosses oil groove, it is characterized in that: the centralizer body shape is jujube nuclear shape, and it is 60～68 channelization angle that two ends are provided with angle.
2, clamping hoop type centralizer according to claim 1 is characterized in that: described centralizer is formed one group by two centralizers up and down, and two centralizers are 90 ° of angle cross fixation mutually along its axis on the same group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920095703U CN201386517Y (en) | 2009-02-27 | 2009-02-27 | Clamp type centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920095703U CN201386517Y (en) | 2009-02-27 | 2009-02-27 | Clamp type centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201386517Y true CN201386517Y (en) | 2010-01-20 |
Family
ID=41579050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920095703U Expired - Fee Related CN201386517Y (en) | 2009-02-27 | 2009-02-27 | Clamp type centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201386517Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541665A (en) * | 2013-10-28 | 2014-01-29 | 天津市伯乔工贸有限公司 | Casting type sucker rod centralizer |
-
2009
- 2009-02-27 CN CN200920095703U patent/CN201386517Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103541665A (en) * | 2013-10-28 | 2014-01-29 | 天津市伯乔工贸有限公司 | Casting type sucker rod centralizer |
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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: 20100120 Termination date: 20140227 |