CN204571875U - Large through-current capacity oil pumping rod centering device - Google Patents
Large through-current capacity oil pumping rod centering device Download PDFInfo
- Publication number
- CN204571875U CN204571875U CN201520251209.5U CN201520251209U CN204571875U CN 204571875 U CN204571875 U CN 204571875U CN 201520251209 U CN201520251209 U CN 201520251209U CN 204571875 U CN204571875 U CN 204571875U
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- CN
- China
- Prior art keywords
- rod
- oil
- oil pumping
- centering device
- pumping rod
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- 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
A kind of large through-current capacity oil pumping rod centering device, comprise body, oil through and oil pumping rod aperture, it is characterized in that: body is set to crux, center is provided with oil pumping rod aperture or rod collar hole, pumping, rod aperture or the front and back support in rod collar hole and the middle part of left and right support are provided with oil through, the outer end edges of front and back support and left and right support is along being set to arc, and the center of circle of arc is the same center of circle with the center of circle in oil pumping rod aperture or rod collar hole.The utility model has the advantages that: oil through and angle space form large discharge passage, little to oil flow resistance, can not by the bonding blocking of wax gum asphalt.The large logical oil mass oil pumping rod centering device be enclosed within sucker rod can float on sucker rod, and in the local righting of rod sag, the stressed time is short, long service life.
Description
Technical field
The utility model relates to oil development technical field, and be specially a kind of large through-current capacity oil pumping rod centering device, solution sucker rod partial wear penetrates oil pipe and causes taken out crude oil to reflux, and makes the problem that oil pumper flogs a dead horse.
Background technology
At present, there is bar mechanical oil well in oil field, because the well depth nature gradient caused during well-digging makes tubing string not straight, in addition well head not just or thick the generation when pumping rod is moved back and forth of oil bend, cause sucker rod partial wear to penetrate oil pipe, cause taken out crude oil to produce backflow, oil pumper is flogged a dead horse.Bending large tubing string, sucker rod is also easily threaded off or is broken de-under the effect of pulling force, has a strong impact on the normal production of oil well.In order to address this problem, scientific and technical personnel have studied and multiplely drain centralizer, substantially solve the problem of sucker rod stabilizing, but also create new problem, most crucial problem is exactly that logical oil mass is little, the well that some content of wax are high or the high well of gum asphalt, time blocks oil canal once long, oil is taken out to come up, does not go under sucker rod, exacerbate the bending or disconnected de-of sucker rod, affect the normal production of oil well especially.
Summary of the invention
The purpose of this utility model is to provide a kind of large through-current capacity oil pumping rod centering device, overcomes the defect that above-mentioned prior art exists.
The technical solution of the utility model realizes with under type:
The utility model comprises body, oil through and oil pumping rod aperture, body is set to crux, center is provided with oil pumping rod aperture or rod collar hole, pumping, rod aperture or the front and back support in rod collar hole and the middle part of left and right support are provided with oil through, the outer end edges of front and back support and left and right support is along being set to arc, and the center of circle of arc is the same center of circle with the center of circle in oil pumping rod aperture or rod collar hole.
Described oil pumping rod aperture is enclosed within sucker rod, and every root sucker rod arranges a large through-current capacity oil pumping rod centering device.
Described pumping rod box cupling hole is enclosed within rod collar, inlays or be bonded with rod collar, and each rod collar arranges a large through-current capacity oil pumping rod centering device.
Described oil through is set to circle or oval or rectangle.
Described large through-current capacity oil pumping rod centering device stainless steel or polytetrafluoroethylene (PTFE) or nylon material mold pressing are made.
Compared with the prior art the utility model has the following advantages:
1, oil through and angle space form large discharge passage, little to oil flow resistance, can not by the bonding blocking of wax gum asphalt.
2, the large through-current capacity oil pumping rod centering device be enclosed within sucker rod can float on sucker rod, and in the local righting of rod sag, the stressed time is short, long service life.
Accompanying drawing explanation
Fig. 1-plane structure schematic diagram of the present utility model
1-body in figure, 2-oil through, 3-pump rod aperture.
Detailed description of the invention
For disclosing technical scheme of the present invention further, elaborated by embodiment below in conjunction with Figure of description:
As shown in Figure 1, the utility model comprises body 1, oil through 2 and oil pumping rod aperture 3, body is set to crux, center is provided with oil pumping rod aperture or rod collar hole, pumping, rod aperture or the front and back support in rod collar hole and the middle part of left and right support are provided with oil through, the outer end edges of front and back support and left and right support is along being set to arc, and the center of circle of arc is the same center of circle with the center of circle in oil pumping rod aperture or rod collar hole.
When practical application by sucker rod borehole jack on sucker rod, every root sucker rod arranges a large through-current capacity oil pumping rod centering device.Large logical oil mass oil pumping rod centering device can float on sucker rod, and in the local righting of rod sag, the stressed time is short, long service life.By pumping rod box cupling borehole jack on rod collar, inlay or be bonded with rod collar, each rod collar arranges a large through-current capacity oil pumping rod centering device.Be arranged on like this while preventing sucker rod partial wear oil pipe and also prevent rod collar eccentrically worn tubing.
Claims (5)
1. a large through-current capacity oil pumping rod centering device, comprise body, oil through and oil pumping rod aperture, it is characterized in that: body is set to crux, center is provided with oil pumping rod aperture or rod collar hole, pumping, rod aperture or the front and back support in rod collar hole and the middle part of left and right support are provided with oil through, the outer end edges of front and back support and left and right support is along being set to arc, and the center of circle of arc is the same center of circle with the center of circle in oil pumping rod aperture or rod collar hole.
2. large through-current capacity oil pumping rod centering device according to claim 1, is characterized in that: described oil pumping rod aperture is enclosed within sucker rod, every root sucker rod arranges a large through-current capacity oil pumping rod centering device.
3. large through-current capacity oil pumping rod centering device according to claim 1, it is characterized in that: described rod collar hole is enclosed within rod collar, inlay with rod collar or be bonded, each rod collar arranges a large through-current capacity oil pumping rod centering device.
4. large through-current capacity oil pumping rod centering device according to claim 1, is characterized in that: described oil through is set to circle or oval or rectangle.
5. large through-current capacity oil pumping rod centering device according to claim 1, is characterized in that: described large through-current capacity oil pumping rod centering device stainless steel or polytetrafluoroethylene (PTFE) or nylon material mold pressing are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251209.5U CN204571875U (en) | 2015-04-16 | 2015-04-16 | Large through-current capacity oil pumping rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520251209.5U CN204571875U (en) | 2015-04-16 | 2015-04-16 | Large through-current capacity oil pumping rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204571875U true CN204571875U (en) | 2015-08-19 |
Family
ID=53864529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520251209.5U Expired - Fee Related CN204571875U (en) | 2015-04-16 | 2015-04-16 | Large through-current capacity oil pumping rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204571875U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612488A (en) * | 2016-12-12 | 2018-10-02 | 四川煜天石油机械设备有限公司 | A kind of automatic rotary centralizer of oil pipe |
-
2015
- 2015-04-16 CN CN201520251209.5U patent/CN204571875U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108612488A (en) * | 2016-12-12 | 2018-10-02 | 四川煜天石油机械设备有限公司 | A kind of automatic rotary centralizer of oil pipe |
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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 |
Granted publication date: 20150819 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |