CN204163650U - A kind of tubing centrilizer - Google Patents
A kind of tubing centrilizer Download PDFInfo
- Publication number
- CN204163650U CN204163650U CN201420617082.XU CN201420617082U CN204163650U CN 204163650 U CN204163650 U CN 204163650U CN 201420617082 U CN201420617082 U CN 201420617082U CN 204163650 U CN204163650 U CN 204163650U
- Authority
- CN
- China
- Prior art keywords
- central tube
- tubing
- tubing coupling
- centrilizer
- lateral surface
- 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 kind of tubing centrilizer, it is characterized in that: comprise central tube, the two ends of central tube are connected with tubing coupling; The lateral wall of described central tube is provided with some centralizer body assemblies, the lateral surface of described tubing coupling is provided with some roll wheel assemblies.As a kind of technical scheme of optimization, the two ends mouth of pipe of described central tube goes out to be provided with internal thread, and one end of tubing coupling is provided with external screw thread, and central tube is threaded with tubing coupling.The utility model is for convenience detach and safeguard.In addition, wiper block can compress outer spring and inner spring, and external diameter is reduced to spend the section of being hampered, and meanwhile, the rolling utilizing roller to realize upon compression connects, and decreases the friction of oil pipe, ensures that oil pipe trips out smoothly.
Description
Technical field
The utility model belongs to the downhole tool of oil field deep well, inclined shaft or horizontal well, particularly a kind of tubing centrilizer.
Background technology
In oilfield development process, along with going deep into of exploitation, the degree of depth of oil well is in continuous intensification.What oil well had reaches thousands of rice deeply, and what have becomes inclined shaft or horizontal well.During workover treatment, oil pipe will trip out from deep-well, inclined shaft or horizontal well, and oil-pipe external wall and internal surface of sleeve pipe easily contact and produce and rub, and this friction easily damages oil pipe and sleeve pipe.Tubing failure needs to change, and can increase oil well fund input like this; Casing failure causes oil well leakage of oil and affects use, even makes oil well entirety scrap, brings about great losses to the economy in oil field.
The use of tubing centrilizer, can make the oil pipe of down-hole be in the middle of sleeve pipe, prevent sleeve pipe from rubbing mutually with oil pipe, and then protection oil pipe is not damaged.Current tubing centrilizer comprises the structures such as interior pipe, centralizer body, roller, and said structure is all rigid structures, not yielding.Sleeve pipe is in underground work process, especially larger deformation can be produced after the operations such as steam injection, stewing well, and the casing inner diameter of described tubing centrilizer present position cannot shrink due to the support of tubing centrilizer, and the sleeve pipe at its two ends is as shunk, be easy to cannot move stuck for described tubing centrilizer in present position, affect normally tripping out of oil pipe.
In addition, existing tubing centrilizer is integrated design, easily occurs the situations such as wearing and tearing after a long time use, like this just needs the centralizer again more renewed.Whole centralizer replacing can waste a large amount of raw material, causes the rising of use cost.
Utility model content
In order to solve the problem, the utility model provides a kind of tubing centrilizer, and wiper block can compress outer spring and inner spring, external diameter is reduced to spend the section of being hampered, and meanwhile, the rolling utilizing roller to realize upon compression connects, decrease the friction of oil pipe, ensure that oil pipe trips out smoothly.
For solving the problem, the technical scheme that the utility model adopts is:
A kind of tubing centrilizer, it is characterized in that: comprise central tube, the two ends of central tube are connected with tubing coupling; The lateral wall of described central tube is provided with some centralizer body assemblies, the lateral surface of described tubing coupling is provided with some roll wheel assemblies.
As a kind of technical scheme of optimization, the two ends mouth of pipe of described central tube goes out to be provided with internal thread, and one end of tubing coupling is provided with external screw thread, and central tube is threaded with tubing coupling.
As a kind of technical scheme of optimization, the arranged outside of described tubing coupling has centrosymmetric four rolling assembly; Each roll wheel assembly comprises the roller be arranged on by connection bracket on tubing coupling lateral surface.
As a kind of technical scheme of optimization, the lateral surface of described tubing coupling is provided with one deck protective jacket, described protective jacket is the flexible shroud be made up of resistant material.
As a kind of technical scheme of optimization, described central tube arranged outside has centrosymmetric four centralizer body assemblies, and has one deck protective jacket on the lateral surface of central tube, and described protective jacket is the flexible shroud be made up of resistant material.
As a kind of technical scheme of optimization, described centralizer body assembly comprises the supporting positive cover be arranged on central tube lateral surface, and supporting positive cover is spill, and its inner elastomeric is connected with wiper block.
As a kind of technical scheme of optimization, the medial surface of described wiper block is provided with some grooves, is provided with spring fastenings between groove and supporting positive cover.
As a kind of technical scheme of optimization, described spring fastenings comprises and is connected to outer spring between groove and supporting positive cover and inner spring, and inner spring is socketed in outer spring.
Owing to have employed technique scheme, compared with prior art, the utility model comprises central tube and tubing coupling, is threaded between three, for convenience detach and maintenance.In addition, wiper block can compress outer spring and inner spring, and external diameter is reduced to spend the section of being hampered, and meanwhile, the rolling utilizing roller to realize upon compression connects, and decreases the friction of oil pipe, ensures that oil pipe trips out smoothly.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the cross section structure schematic diagram of centralizer body assembly side in Fig. 1.
Detailed description of the invention
Embodiment:
As shown in Figure 1 and Figure 2, a kind of tubing centrilizer, comprises central tube 4, and the two ends of central tube 4 are connected with tubing coupling 1.The lateral wall of described central tube 4 is provided with some centralizer body assemblies 5, the lateral surface of described tubing coupling 1 is provided with some roll wheel assemblies.
In the present embodiment, the two ends mouth of pipe of described central tube 4 goes out to be provided with internal thread, and one end of tubing coupling 1 is provided with external screw thread, and central tube is threaded with tubing coupling.
The arranged outside of described tubing coupling 1 has centrosymmetric four rolling assembly.Each roll wheel assembly comprises the roller 3 be arranged on by connection bracket on tubing coupling lateral surface.
The lateral surface of described tubing coupling 1 is provided with one deck protective jacket 2, and described protective jacket 2 is the flexible shrouds be made up of resistant material.
In the present embodiment, described central tube 4 arranged outside has centrosymmetric four centralizer body assemblies 5, and on the lateral surface of central tube 5, have one deck protective jacket 51, and described protective jacket 51 is the flexible shrouds be made up of resistant material.
Described centralizer body assembly comprises the supporting positive cover 56 be arranged on central tube lateral surface, and supporting positive cover 56 is in spill, and its inner elastomeric is connected with wiper block 52.The medial surface of described wiper block 52 is provided with some grooves 55, is provided with spring fastenings between groove 55 and supporting positive cover 56.
Described spring fastenings comprises and is connected to outer spring 54 between groove 55 and supporting positive cover 56 and inner spring 53, and inner spring 53 is socketed in outer spring 54.
First be installed on central tube by tubing coupling before using, simultaneously tubing coupling connects two oil pipes, so just achieves the object be connected to by tubing centrilizer between two oil pipes, and in stage lower going-into-well gone into the well by oil pipe and oil pipe trip out the stage and trip out with oil pipe.Be hampered in stage of going into the well and tripping out in phase process, the situations such as such as sleeve pipe caliber reduces, sleeve pipe local crowning, wiper block compression cluster spring, roller achieves a fixed connection in addition, so just can realize the reduction of centralizer external diameter, frictional resistance is minimum, to spend obstruction, oil pipe is made to go into the well smoothly and trip out.
The utility model comprises central tube and tubing coupling, is threaded between three, for convenience detach and maintenance.In addition, wiper block can compress outer spring and inner spring, and external diameter is reduced to spend the section of being hampered, and meanwhile, the rolling utilizing roller to realize upon compression connects, and decreases the friction of oil pipe, ensures that oil pipe trips out smoothly.
The utility model is not limited to above-mentioned preferred embodiment, and anyone should learn the structure change made under enlightenment of the present utility model, and every have identical or akin technical scheme with the utility model, all belongs to protection domain of the present utility model.
Claims (8)
1. a tubing centrilizer, is characterized in that: comprise central tube, and the two ends of central tube are connected with tubing coupling; The lateral wall of described central tube is provided with some centralizer body assemblies, the lateral surface of described tubing coupling is provided with some roll wheel assemblies.
2. tubing centrilizer according to claim 1, is characterized in that: the two ends mouth of pipe of described central tube goes out to be provided with internal thread, and one end of tubing coupling is provided with external screw thread, and central tube is threaded with tubing coupling.
3. tubing centrilizer according to claim 2, is characterized in that: the arranged outside of described tubing coupling has centrosymmetric four rolling assembly; Each roll wheel assembly comprises the roller be arranged on by connection bracket on tubing coupling lateral surface.
4. tubing centrilizer according to claim 3, is characterized in that: the lateral surface of described tubing coupling is provided with one deck protective jacket, and described protective jacket is the flexible shroud be made up of resistant material.
5. tubing centrilizer according to claim 2, it is characterized in that: described central tube arranged outside has centrosymmetric four centralizer body assemblies, and have one deck protective jacket on the lateral surface of central tube, described protective jacket is the flexible shroud be made up of resistant material.
6. tubing centrilizer according to claim 5, is characterized in that: described centralizer body assembly comprises the supporting positive cover be arranged on central tube lateral surface, and supporting positive cover is spill, and its inner elastomeric is connected with wiper block.
7. tubing centrilizer according to claim 6, is characterized in that: the medial surface of described wiper block is provided with some grooves, is provided with spring fastenings between groove and supporting positive cover.
8. tubing centrilizer according to claim 7, is characterized in that: described spring fastenings comprises and is connected to outer spring between groove and supporting positive cover and inner spring, and inner spring is socketed in outer spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617082.XU CN204163650U (en) | 2014-10-23 | 2014-10-23 | A kind of tubing centrilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420617082.XU CN204163650U (en) | 2014-10-23 | 2014-10-23 | A kind of tubing centrilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204163650U true CN204163650U (en) | 2015-02-18 |
Family
ID=52537349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420617082.XU Expired - Fee Related CN204163650U (en) | 2014-10-23 | 2014-10-23 | A kind of tubing centrilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204163650U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988688A (en) * | 2017-06-08 | 2017-07-28 | 广汉川亿石油科技有限公司 | Well cementation eddy flow rigid, hard centralizer |
| CN108661575A (en) * | 2018-04-27 | 2018-10-16 | 赖彦林 | A kind of oil exploitation oil pipe swing pipe bracket |
-
2014
- 2014-10-23 CN CN201420617082.XU patent/CN204163650U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988688A (en) * | 2017-06-08 | 2017-07-28 | 广汉川亿石油科技有限公司 | Well cementation eddy flow rigid, hard centralizer |
| CN108661575A (en) * | 2018-04-27 | 2018-10-16 | 赖彦林 | A kind of oil exploitation oil pipe swing pipe bracket |
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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: 20150218 Termination date: 20151023 |
|
| EXPY | Termination of patent right or utility model |