CN208184682U - Tubing centrilizer - Google Patents
Tubing centrilizer Download PDFInfo
- Publication number
- CN208184682U CN208184682U CN201820661052.7U CN201820661052U CN208184682U CN 208184682 U CN208184682 U CN 208184682U CN 201820661052 U CN201820661052 U CN 201820661052U CN 208184682 U CN208184682 U CN 208184682U
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- CN
- China
- Prior art keywords
- annular groove
- sleeve
- outer rim
- rotating cylinder
- centralizer body
- Prior art date
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Abstract
The utility model relates to arrive oil equipment field of accessories, and in particular to arrive tubing centrilizer.Including centralizer body, centralizer body upper end has been provided with box cupling, sleeve is fixedly installed in the second annular groove on centralizer body below box cupling, sleeve outer rim is provided with rotating cylinder, sleeve outer rim is arranged in the first annular groove of rotating cylinder inner edge, corresponding third annular groove is provided on the cell wall and sleeve outer rim of first annular groove, ball is provided in two corresponding third annular grooves, rotating cylinder outer rim is uniformly arranged multiple vertical wiper blocks, rotating cylinder is provided with multi-directional ball on upper surface, connects lower end surface and contacts with multi-directional ball.The utility model; structure is simple; rotation is flexible, frictional force is small; righting effect is good, it is ensured that oil pipe is placed in the middle, and reduction friction phenomenon, which occurs that, effectively prevents oil-pipe external wall and internal surface of sleeve pipe friction; effectively protect casing and oil pipe; wiper block can rotate simultaneously, reduce its contact stress with internal surface of sleeve pipe, and service life increases.
Description
Technical field
The utility model relates to arrive oil equipment field of accessories, and in particular to arrive tubing centrilizer.
Background technique
In oilfield development process, with going deep into for exploitation, the depth of oil well is constantly being deepened.Oil well some is as deep as thousands of
Rice, some become inclined shaft or horizontal well.Oil pipe will be from deep-well, inclined shaft or horizontal well out when workover treatment, oil-pipe external wall and set
Inside pipe wall is easy to contact and generates friction, and this friction is easily damaged oil pipe and casing.Tubing failure needs replacing, and can increase in this way
Oiling well capital investment；Casing damage causes oil well oil leak and influences to use, or even scraps oil well integrally, to the economy in oil field
It brings about great losses.The use of tubing centrilizer can be such that the oil pipe of underground is among casing, prevent casing from mutually rubbing with oil pipe
It wipes, and then oil pipe is protected not to be damaged.
Utility model content
The technical problem to be solved by the utility model is to one kind can prevent oil-pipe external wall from having with internal surface of sleeve pipe friction
The tubing centrilizer for protecting oil pipe and casing of effect.
To achieve the goals above, technical solution provided by the utility model is:
Tubing centrilizer, including centralizer body, centralizer body upper end are provided with box cupling, the centralizer sheet below box cupling
Sleeve is fixedly installed in the second annular groove on body, sleeve outer rim is provided with rotating cylinder, and the of rotating cylinder inner edge is arranged in sleeve outer rim
In one annular groove, corresponding third annular groove, two corresponding third rings are provided on the cell wall and sleeve outer rim of the first annular groove
Ball is provided in slot, rotating cylinder outer rim is uniformly arranged multiple vertical wiper blocks, and rotating cylinder is provided with multi-directional ball on upper surface, connects
Lower end surface is contacted with multi-directional ball.
Specifically, the wiper block is nylon wiper block.
Specifically, the centralizer body is threadedly coupled with box cupling.
Specifically, the third annular groove is arc-shaped ring groove.
Compared with prior art, the utility model has the following beneficial effects:
The utility model, structure is simple, and rotation is flexible, frictional force is small, and righting effect is good, it is ensured that oil pipe is placed in the middle, reduces inclined
Mill phenomenon, which occurs that, effectively prevents oil-pipe external wall and internal surface of sleeve pipe friction, effectively protects casing and oil pipe, helps simultaneously
Positive block can rotate, and reduce its contact stress with internal surface of sleeve pipe, and service life increases.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Parts title in attached drawing are as follows:
1, centralizer body, 2, box cupling, 3, sleeve, 4, rotating cylinder, 5, wiper block, 6, multi-directional ball, 7, third annular groove, 8, rolling
Pearl, the 9, first annular groove, 10 second annular grooves.
Specific embodiment
As shown in Figure 1, tubing centrilizer, including centralizer body 1,1 threaded upper ends of centralizer body are connected with box cupling 2,
10 are fixedly installed sleeve 3 in the second annular groove on the centralizer body 1 of 2 lower section of box cupling, and 3 outer rim of sleeve is provided with rotating cylinder 4, set
3 outer rims of cylinder are arranged in the first annular groove 9 of 4 inner edge of rotating cylinder, are provided in 3 outer rim of cell wall and sleeve of the first annular groove 9 opposite
The third annular groove 7 answered, the third annular groove 7 are arc-shaped ring groove.Ball 8, rotating cylinder 4 are provided in two corresponding third annular grooves 7
Outer rim is uniformly arranged multiple vertical wiper blocks 5, and the wiper block 5 is nylon wiper block.Rotating cylinder is provided with ten thousand on 4 upper surface
To ball 6,2 lower end surface of box cupling is contacted with multi-directional ball 6.
The utility model is connected on oil pipe when use, and together with oil pipe in tripping in casing, wiper block 5 can revolve
Turn, reduce its contact stress with internal surface of sleeve pipe, rotation is flexible, frictional force is small, increases service life.It can also incite somebody to action simultaneously
Two the utility model are connected to the upper and lower ends of packer, can reduce the borehole wall in this way to the frictionally damage of packing element,
Extend the service life of packer
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (4)
1. tubing centrilizer, including centralizer body (1), which is characterized in that centralizer body (1) upper end is provided with box cupling (2),
(10) are fixedly installed sleeve (3) in the second annular groove on centralizer body (1) below box cupling (2), the setting of sleeve (3) outer rim
Have rotating cylinder (4), sleeve (3) outer rim is arranged in first annular groove (9) of rotating cylinder (4) inner edge, the cell wall and sleeve of the first annular groove (9)
(3) it is provided with corresponding third annular groove (7) in outer rim, is provided with ball (8) in two corresponding third annular grooves (7), turns
Cylinder (4) outer rim is uniformly arranged multiple vertical wiper blocks (5), is provided with multi-directional ball (6) on rotating cylinder (4) upper surface, box cupling (2)
Lower end surface is contacted with multi-directional ball (6).
2. tubing centrilizer according to claim 1, which is characterized in that the wiper block (5) is nylon wiper block.
3. tubing centrilizer according to claim 1, which is characterized in that the centralizer body (1) and box cupling (2) screw thread connect
It connects.
4. tubing centrilizer according to claim 1, which is characterized in that the third annular groove (7) is arc-shaped ring groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820661052.7U CN208184682U (en) | 2018-05-05 | 2018-05-05 | Tubing centrilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820661052.7U CN208184682U (en) | 2018-05-05 | 2018-05-05 | Tubing centrilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184682U true CN208184682U (en) | 2018-12-04 |
Family
ID=64432395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820661052.7U Active CN208184682U (en) | 2018-05-05 | 2018-05-05 | Tubing centrilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208184682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575872A (en) * | 2023-07-11 | 2023-08-11 | 四川尔零石油科技有限公司 | Casing centralizer and production method thereof |
-
2018
- 2018-05-05 CN CN201820661052.7U patent/CN208184682U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116575872A (en) * | 2023-07-11 | 2023-08-11 | 四川尔零石油科技有限公司 | Casing centralizer and production method thereof |
| CN116575872B (en) * | 2023-07-11 | 2023-09-12 | 四川尔零石油科技有限公司 | Casing centralizer and production method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |