CN206668173U - A kind of casing centralizer for directional well - Google Patents
A kind of casing centralizer for directional well Download PDFInfo
- Publication number
- CN206668173U CN206668173U CN201720386739.XU CN201720386739U CN206668173U CN 206668173 U CN206668173 U CN 206668173U CN 201720386739 U CN201720386739 U CN 201720386739U CN 206668173 U CN206668173 U CN 206668173U
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- CN
- China
- Prior art keywords
- spring leaf
- rigid body
- strengthening tablets
- body resistance
- directional well
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Abstract
The utility model discloses a kind of casing centralizer for directional well, including stationary body and the first rigid body resistance-strengthening tablets, centralizer cavity is provided with the inside of the stationary body, stationary body is fixed with the inside of the first rigid body resistance-strengthening tablets, spring leaf is connected with the sliding groove, the lower end of the spring leaf is connected with the second rigid body resistance-strengthening tablets, main body is provided with the stationary body and leads to window, hold-open catch is installed in the second rigid body resistance-strengthening tablets, stationary body is fixed with the inside of the second rigid body resistance-strengthening tablets.The spring leaf of the casing centralizer for directional well is " Ω " type structure, to increase the elastic performance of spring leaf, spring leaf is provided with four, improve the righting effect of casing centralizer for directional well, increase the operating efficiency of casing centralizer for directional well, first rigid body resistance-strengthening tablets, spring leaf and the second rigid body resistance-strengthening tablets are aluminum alloy materials, add the wearability of casing centralizer for directional well, to improve the service life of casing centralizer for directional well.
Description
Technical field
Drilling equipment technical field is the utility model is related to, specially a kind of casing centralizer for directional well.
Background technology
Centralizer is a kind of cementing tool that can guarantee that well drilling and cementing quality, and centralizer species is various, can be divided into by structure
Roller type, slide block type, automatic reverse formula etc..The centralizer of different structure and material, suitable for the oil well of different type eccentric wear.With
The fast development of social economy, the development of petroleum industry also more it is with rapid changepl. never-ending changes and improvements, in petroleum industry process, it is most important just
It is the development of drilling technology, it is a kind of to stablize excellent drilling technology and largely effect on the yield of petroleum industry, and set in drilling well
Standby central, the effect of centralizer is also quite important, but some centralizers that currently there are often have some shortcomings,
Such as some centralizers cause to wear no resistance to be flexible, service life is low, also has some rigid centralizers righting to be present
It is small, cause righting DeGrain, so a kind of technology for improving centralizer, is necessary at present.
Utility model content
The purpose of this utility model is to provide a kind of casing centralizer for directional well, to solve above-mentioned background technology proposition
Centralizer in the market wears no resistance, and service life is low, the problems such as righting DeGrain.
To achieve the above object, the utility model provides following technical scheme：A kind of casing centralizer for directional well, including it is solid
Determine main body and the first rigid body resistance-strengthening tablets, centralizer cavity, the first rigid body resistance-strengthening tablets are provided with the inside of the stationary body
Inner side be fixed with stationary body, and be provided with sliding groove on the first rigid body resistance-strengthening tablets, spring leaf be connected with the sliding groove,
And the upper end of spring leaf is connected by sliding groove with the first rigid body resistance-strengthening tablets, the lower end of the spring leaf is connected with the second rigidity
Body resistance-strengthening tablets, main body is provided with the stationary body and leads to window, hold-open catch, and spring are installed in the second rigid body resistance-strengthening tablets
The lower end of piece is connected by hold-open catch with the second rigid body resistance-strengthening tablets, and fixation is fixed with the inside of the second rigid body resistance-strengthening tablets
Main body, and fixing threaded hole is provided with below stationary body.
Preferably, the upper and lower ends of the spring leaf are led by the first rigid body resistance-strengthening tablets and the second rigid body resistance-strengthening tablets with fixed
Body phase connects, and the connected mode of the first rigid body resistance-strengthening tablets and the second rigid body resistance-strengthening tablets and stationary body is to be welded to connect.
Preferably, the spring leaf is provided with four, and spring leaf is " Ω " type structure.
Preferably, the spring leaf and main body are led to window and corresponded, and spring leaf and main body lead to window and be evenly distributed on fixation
The outside of main body.
Preferably, the spring leaf is structure as a whole with hold-open catch.
Preferably, the described first rigid body resistance-strengthening tablets, spring leaf and the second rigid body resistance-strengthening tablets are aluminum alloy materials.
Compared with prior art, the beneficial effects of the utility model are：The spring leaf of the casing centralizer for directional well is
" Ω " type structure, to increase the elastic performance of spring leaf, spring leaf is provided with four, and spring leaf and main body are led to window and be uniformly distributed
In the outside of stationary body, the righting effect of casing centralizer for directional well is improved, increases the work of casing centralizer for directional well
Efficiency, while also reduce the making material of casing centralizer for directional well, cost of manufacture is saved, up and down the two of stationary body
End is also provided with the first rigid body resistance-strengthening tablets and the second rigid body resistance-strengthening tablets, and the first rigid body resistance-strengthening tablets, spring leaf and the second rigidity are helped
Positive is aluminum alloy materials, adds the wearability of casing centralizer for directional well, to improve making for casing centralizer for directional well
Use the life-span.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model main structure diagram；
Fig. 3 is the utility model overlooking the structure diagram.
In figure：1st, centralizer cavity, 2, stationary body, the 3, first rigid body resistance-strengthening tablets, 4, sliding groove, 5, spring leaf, 6,
Two rigid body resistance-strengthening tablets, 7, main body lead to window, 8, hold-open catch, 9, fixing threaded hole.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of casing centralizer for directional well, including fixation
2 and first rigid body resistance-strengthening tablets 3 of main body, the inner side of stationary body 2 are provided with centralizer cavity 1, the inner side of the first rigid body resistance-strengthening tablets 3
Stationary body 2 is fixed with, and sliding groove 4 is provided with the first rigid body resistance-strengthening tablets 3, the first rigid body resistance-strengthening tablets 3, spring leaf 5 and
Two rigid body resistance-strengthening tablets 6 are aluminum alloy materials, add the wearability of casing centralizer for directional well, are helped with improving orientation casing
The service life of positive device, spring leaf 5 is connected with sliding groove 4, spring leaf 5 is provided with four, and spring leaf 5 is " Ω " type knot
Structure, the elastic performance of spring leaf 5 is added, so as to improve the service behaviour of centralizer, and the upper end of spring leaf 5 passes through sliding groove
4 are connected with the first rigid body resistance-strengthening tablets 3, and the upper and lower ends of spring leaf 5 pass through the first rigid 3 and second rigid body resistance-strengthening tablets of body resistance-strengthening tablets
6 are connected with stationary body 2, and the connected mode of the first rigid 3 and second rigid body resistance-strengthening tablets 6 of body resistance-strengthening tablets and stationary body 2 is
Be welded to connect, can effective stationary spring 5, to improve the operating efficiency of spring leaf 5, it is firm that the lower end of spring leaf 5 is connected with second
Property body resistance-strengthening tablets 6, main body is provided with stationary body 2 leads to window 7, and spring leaf 5 and main body are led to window 7 and corresponded, and spring leaf 5 and main
Body leads to the outside that window 7 is evenly distributed on stationary body 2, improves the righting effect of casing centralizer for directional well, increases directional well
The operating efficiency of casing stabbing board, while the making material of casing centralizer for directional well is also reduced, cost of manufacture is saved, the
Hold-open catch 8 is installed, and the lower end of spring leaf 5 passes through 8 and second rigid body resistance-strengthening tablets 6 of hold-open catch in two rigid body resistance-strengthening tablets 6
It is connected, spring leaf 5 is structure as a whole with hold-open catch 8, prevents the lower slide of spring leaf 5, to improve the righting energy of spring leaf 5
Power, the inner side of the second rigid body resistance-strengthening tablets 6 is fixed with stationary body 2, and the lower section of stationary body 2 is provided with fixing threaded hole 9.
Operation principle：When using the casing centralizer for directional well, casing centralizer for directional well is enclosed on sleeve pipe first,
Casing centralizer for directional well is fixed by fixing threaded hole 9, when orienting casing work, the meeting stress of spring leaf 5, spring leaf 5
Be provided with four, can effective stress, to increase the righting effect of centralizer, and spring leaf 5 is " Ω " type structure, adds bullet
The elastic performance of reed 5, so as to improve the service behaviour of centralizer, when 5 stress of spring leaf, the upper end of spring leaf 5 can pass through
Sliding groove 4 is upper forward to be slided, and the lower end of spring leaf 5 is fixed in the presence of hold-open catch 8, to improve helping for spring leaf 5
Positive ability, main body is additionally provided with stationary body 2 and leads to window 7, reduces the making material of casing centralizer for directional well, saves and makes
Cost, the first rigid body resistance-strengthening tablets 3,5 and second rigid body resistance-strengthening tablets 6 of spring leaf on centralizer are aluminum alloy materials, are added
The wearability of casing centralizer for directional well, a series of activities is completed under the cooperation of rigidity and elasticity.
Although the utility model is described in detail with reference to the foregoing embodiments, come for those skilled in the art
Say, it can still be modified to the technical scheme described in foregoing embodiments, or which part technical characteristic is entered
Row equivalent substitution, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made etc., all should
Within the scope of protection of the utility model.
Claims (6)
1. a kind of casing centralizer for directional well, including stationary body（2）With the first rigid body resistance-strengthening tablets（3）, it is characterised in that：It is described
Stationary body（2）Inner side be provided with centralizer cavity（1）, the first rigid body resistance-strengthening tablets（3）Inner side be fixed with fixed master
Body（2）, and the first rigid body resistance-strengthening tablets（3）On be provided with sliding groove（4）, the sliding groove（4）Inside it is connected with spring leaf（5）, and
Spring leaf（5）Upper end pass through sliding groove（4）With the first rigid body resistance-strengthening tablets（3）It is connected, the spring leaf（5）Lower end connection
There are the second rigid body resistance-strengthening tablets（6）, the stationary body（2）On be provided with main body lead to window（7）, the second rigid body resistance-strengthening tablets（6）
Hold-open catch is inside installed（8）, and spring leaf（5）Lower end pass through hold-open catch（8）With the second rigid body resistance-strengthening tablets（6）It is connected
Connect, the second rigid body resistance-strengthening tablets（6）Inner side be fixed with stationary body（2）, and stationary body（2）Lower section be provided with fixation
Screw（9）.
A kind of 2. casing centralizer for directional well according to claim 1, it is characterised in that：The spring leaf（5）Up and down
Both ends pass through the first rigid body resistance-strengthening tablets（3）With the second rigid body resistance-strengthening tablets（6）With stationary body（2）It is connected, and the first rigidity is helped
Positive（3）With the second rigid body resistance-strengthening tablets（6）With stationary body（2）Connected mode to be welded to connect.
A kind of 3. casing centralizer for directional well according to claim 1, it is characterised in that：The spring leaf（5）It is provided with
Four, and spring leaf（5）For " Ω " type structure.
A kind of 4. casing centralizer for directional well according to claim 1, it is characterised in that：The spring leaf（5）And main body
Logical window（7）Correspond, and spring leaf（5）Lead to window with main body（7）It is evenly distributed on stationary body（2）Outside.
A kind of 5. casing centralizer for directional well according to claim 1, it is characterised in that：The spring leaf（5）With fixation
Bayonet lock（8）It is structure as a whole.
A kind of 6. casing centralizer for directional well according to claim 1, it is characterised in that：The first rigid body resistance-strengthening tablets
（3）, spring leaf（5）With the second rigid body resistance-strengthening tablets（6）It is aluminum alloy materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386739.XU CN206668173U (en) | 2017-04-13 | 2017-04-13 | A kind of casing centralizer for directional well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720386739.XU CN206668173U (en) | 2017-04-13 | 2017-04-13 | A kind of casing centralizer for directional well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668173U true CN206668173U (en) | 2017-11-24 |
Family
ID=60381431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720386739.XU Expired - Fee Related CN206668173U (en) | 2017-04-13 | 2017-04-13 | A kind of casing centralizer for directional well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668173U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530471A (en) * | 2020-04-15 | 2021-10-22 | 扬州市江都区人和机械有限公司 | Spring steel centralizer |
| RU2818221C1 (en) * | 2023-08-03 | 2024-04-25 | Акционерное общество "Новомет-Пермь" | Borehole centralizer for lowering of electric submersible pump unit |
-
2017
- 2017-04-13 CN CN201720386739.XU patent/CN206668173U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530471A (en) * | 2020-04-15 | 2021-10-22 | 扬州市江都区人和机械有限公司 | Spring steel centralizer |
| RU2818221C1 (en) * | 2023-08-03 | 2024-04-25 | Акционерное общество "Новомет-Пермь" | Borehole centralizer for lowering of electric submersible pump unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 Termination date: 20180413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |