CN201865595U - Damage-free oil tube centralizer - Google Patents
Damage-free oil tube centralizer Download PDFInfo
- Publication number
- CN201865595U CN201865595U CN2010206051362U CN201020605136U CN201865595U CN 201865595 U CN201865595 U CN 201865595U CN 2010206051362 U CN2010206051362 U CN 2010206051362U CN 201020605136 U CN201020605136 U CN 201020605136U CN 201865595 U CN201865595 U CN 201865595U
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- CN
- China
- Prior art keywords
- oil tube
- damage
- centralizer
- injury
- centralizing
- 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 discloses a damage-free oil tube centralizer for petroleum industry, which has the effect of centralizing pumping well production strings without damage to sleeves, and is a tool for reducing accidents of break of sleeves and break and leakage of an oil tube during the process of producing well production. The centralizer comprises an oil tube pup joint; a damage-free centralizing block is arranged on the circumcircle of the oil tube pup joint, so as to form the centralizer; and a spiral guiding groove at any angle from 42 to 48 degrees is arranged on the outer surface of the centralizing block, so as to ensure that liquid flow is smooth. The spiral guiding groove of the centralizing block adopts arc groove design, so that the contact area is increased, and liquid flow is smoother. The effect of sleeve protection is achieved through the centralizing block made of wear superstrong nylon material while the oil tube is centralized, and the protection effect on inclined section oil tube is also achieved. In addition to the performances of the original centralizing block, the damage-free oil tube centralizer also solves the problem of damage to sleeve, has reasonable performance, and is suitable for application.
Description
Technical field
The utility model belongs to the down-hole oil production aid of petroleum industry.Especially a kind of nothing injury tubing centrilizer can play a part to set upright to the pumpingh well flow string under the situation of not damaging sleeve pipe, is the important tool that reduces the accident that cover is broken, oil pipe is disconnected, leak in the Production Wells process.
Background technology
Because of drilling well hole deviation reason, the pumpingh well flow string bears the fluctuating load of wriggling up and down for a long time, and the easy and sleeve pipe generation eccentric wear of flow string causes sleeve pipe to damage and disconnected, leakage accident take place flow string.At present result of the above problems is that the metal oil conduit centralizer is installed, though the direct friction that this product can prevent oil pipe and sleeve pipe is installed, can not alleviate metal wiper block on the tubing centrilizer to the damage of sleeve pipe.
Summary of the invention
The purpose of this utility model provides a kind of nothing injury tubing centrilizer, overcomes the problem of existing conventional tubing centrilizer damage sleeve pipe, in protective casing, the pumpingh well flow string is play a part to set upright.
Technical solution of the present utility model is: a kind of nothing injury tubing centrilizer comprises tubing nipple, cylindrical at tubing nipple is provided with nothing injury wiper block, constitute centralizer, wiper block external surface be provided with between 42 °-48 ° spiral stream guidance groove at any angle, make liquid smooth logical.
Compared with prior art the utlity model has following useful effect: the wiper block that the utility model is made superpower nylon material adopts the processing technology of injection moulding thermosetting to be fixed on the tubing nipple, makes the distortion of wiper block difficult drop-off, and high temperature resistant, wear-resisting.The set spiral stream guidance groove of wiper block adopts the trench design of arc line type, and contact surface is increased, and liquid stream is more unimpeded.When setting upright oil pipe, the wiper block by the superpower nylon material that weares and teares is made reaches the effect of protective casing, again the lower curved section oil pipe is played a protective role.The utility model has solved the problem of damage sleeve pipe except the performance that possesses original centralizer, dependable performance is suitable for using.
Description of drawings
Accompanying drawing is the structural representation that the utility model does not have the injury wiper block.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to accompanying drawing, a kind of nothing injury tubing centrilizer comprises tubing nipple, cylindrical at tubing nipple is provided with nothing injury wiper block 1, the processing technology of employing injection moulding thermosetting will not have injury wiper block 1 and will be fixed on the plain tubing pipe nipple by centre bore 3, making does not have the distortion of injury wiper block 1 difficult drop-off, and high temperature resistant, wear-resisting.Not having injury wiper block 1 two ends end face and be provided with between 28 °-33 ° chamfering 2 at any angle, as 29 °, 30 °, 31 °, is optimal selection with 30 ° of angles, makes things convenient for connection.The external surface that does not have an injury wiper block 1 is provided with between 42 °-48 ° spiral stream guidance groove 4 at any angle, as 43 °, 45 °, 46 °, 47 °, is optimal selection with the 45.Spiral stream guidance groove 4 increases contact surface, and liquid stream is more unimpeded.The utility model is connected in the flow string of pumpingh well, the lighter well section of wearing and tearing, per 3 oil pipes are installed a cover; The heavier well section of wearing and tearing, per 2 oil pipes are installed a cover; The well section of serious wear, per 1 oil pipe is installed a cover.
Claims (4)
1. one kind is not had the injury tubing centrilizer, comprises tubing nipple, it is characterized in that cylindrical at tubing nipple is provided with and does not have injury wiper block (1), and the external surface that does not have an injury wiper block (1) is provided with between 42 °-48 ° spiral stream guidance groove (4) at any angle.
2. a kind of nothing injury tubing centrilizer according to claim 1 is characterized in that not having injury wiper block (1) two ends end face and is provided with between 28 °-33 ° chamfering (2) at any angle.
3. a kind of nothing injury tubing centrilizer according to claim 1 and 2, it is characterized in that not having the set chamfering (2) of injury wiper block (1) two ends end face is optimal selection with 30 ° of angles.
4. a kind of nothing injury tubing centrilizer according to claim 1 and 2 is characterized in that not having the set spiral stream guidance groove (4) of external surface that injures wiper block (1) is optimal selection with the 45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206051362U CN201865595U (en) | 2010-11-02 | 2010-11-02 | Damage-free oil tube centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206051362U CN201865595U (en) | 2010-11-02 | 2010-11-02 | Damage-free oil tube centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865595U true CN201865595U (en) | 2011-06-15 |
Family
ID=44136752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206051362U Expired - Fee Related CN201865595U (en) | 2010-11-02 | 2010-11-02 | Damage-free oil tube centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865595U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331537A (en) * | 2018-03-19 | 2018-07-27 | 山东博诺利石油装备有限公司 | A kind of tubing centrilizer |
| CN114482893A (en) * | 2022-01-26 | 2022-05-13 | 北京奥瑞安能源技术开发有限公司 | Directional cave well sand bailing device and sand bailing method |
-
2010
- 2010-11-02 CN CN2010206051362U patent/CN201865595U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331537A (en) * | 2018-03-19 | 2018-07-27 | 山东博诺利石油装备有限公司 | A kind of tubing centrilizer |
| CN114482893A (en) * | 2022-01-26 | 2022-05-13 | 北京奥瑞安能源技术开发有限公司 | Directional cave well sand bailing device and sand bailing method |
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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: 20110615 Termination date: 20111102 |