CN204002618U - Semi-rigid centralizer - Google Patents
Semi-rigid centralizer Download PDFInfo
- Publication number
- CN204002618U CN204002618U CN201420095175.0U CN201420095175U CN204002618U CN 204002618 U CN204002618 U CN 204002618U CN 201420095175 U CN201420095175 U CN 201420095175U CN 204002618 U CN204002618 U CN 204002618U
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- CN
- China
- Prior art keywords
- semi
- projection
- centralizer
- sleeve pipe
- completion
- 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 semi-rigid centralizer, it is characterized in that: comprise the body of circular tube shaped, in the inside of body, be processed with screw thread, the outside of body has a plurality of projections that longitudinally distribute, and between each projection and the axle center of body, forms an inclination angle.A kind of semi-rigid centralizer of the utility model, the guarantee that while being completion, sleeve pipe is transferred smoothly, processing technology is simple, easy to install, and construction stability is good.Projection can guarantee that sleeve pipe transfers smoothly, once and meet with obstruction, centralizer projection generation deformation, can not block or damage the phenomenon of sleeve pipe.Thereby improve completion quality the duty cycle of completion interval of well, and there is clear superiority in manufacturing process and mounting or dismounting.
Description
Technical field
The utility model relates to oil well completion field, specifically a kind of floating completion system.
Background technology
Increase along with the large horizontal well quantity in China some areas, to the innovation of the completion mode of advantages of simple, be extremely urgent, and original completion tool can not be best complete completion, cause constructional difficulties, completion is of poor quality etc., can not meet the demand of engineering, this just requires us to need more advanced technology and equipment to solve this difficult problem.
Utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of semi-rigid centralizer, and it is smooth that this device effectively guarantees that sleeve pipe is transferred, and prevents that underground equipment from damaging, and ensures normally carrying out of construction.
The purpose of this utility model is carried out specific implementation by the following technical programs:
A semi-rigid centralizer, is characterized in that: comprise the body of circular tube shaped, in the inside of body, be processed with screw thread, the outside of body has a plurality of projections that longitudinally distribute, and between each projection and the axle center of body, forms an inclination angle.
The angle of inclination at preferred described inclination angle is 5-30 degree, is preferably 7 degree.
The two ends of described projection are convex structure, make gradual being connected with body of described projection.
Described projection is strip, and projection two ends and in the two ends of body.
Between described projection and body, adopt welding fabrication.
Described body adopts hollow structure.
Described projection has 3-6.
After described body and protruding moulding, outside scribbles paint.
A kind of semi-rigid centralizer of the utility model, the guarantee that while being completion, sleeve pipe is transferred smoothly, processing technology is simple, easy to install, and construction stability is good.Projection can guarantee that sleeve pipe transfers smoothly, once and meet with obstruction, centralizer projection generation deformation, can not block or damage the phenomenon of sleeve pipe.Thereby improve completion quality the duty cycle of completion interval of well, and there is clear superiority in manufacturing process and mounting or dismounting.
Accompanying drawing explanation
According to drawings and embodiments the utility model is described in further detail below.
Fig. 1 is the structural representation of a kind of semi-rigid centralizer of the utility model;
Fig. 2 is lateral view.
The specific embodiment
As shown in Figure 1-2, a kind of semi-rigid centralizer described in the utility model embodiment, mainly comprises tube wall, projection and three features of screwed hole.There is certain angle prominence and tube wall axis, while guaranteeing that centralizer meets with obstruction, can pass through by self rotation.Soket head cap screw is installed on screwed hole, during construction, can centralizer be fixed on sleeve pipe by screw.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model; be not limited to the utility model; for a person skilled in the art; its technical scheme that still can record aforementioned each embodiment regulates; or part technical characterictic is wherein equal to replacement; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a semi-rigid centralizer, is characterized in that: comprise the body of circular tube shaped, in the inside of body, be processed with screw thread, the outside of body has a plurality of projections that longitudinally distribute, and between each projection and the axle center of body, forms an inclination angle; Described projection is strip, and projection two ends and in the two ends of body; After described body and protruding moulding, outside scribbles paint.
2. semi-rigid centralizer as claimed in claim 1, is characterized in that, between described projection and body, adopts welding fabrication.
3. semi-rigid centralizer as claimed in claim 1, is characterized in that, described body adopts hollow structure.
4. semi-rigid centralizer as claimed in claim 1, is characterized in that, described projection has 3-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095175.0U CN204002618U (en) | 2014-03-04 | 2014-03-04 | Semi-rigid centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420095175.0U CN204002618U (en) | 2014-03-04 | 2014-03-04 | Semi-rigid centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002618U true CN204002618U (en) | 2014-12-10 |
Family
ID=52042638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420095175.0U Expired - Fee Related CN204002618U (en) | 2014-03-04 | 2014-03-04 | Semi-rigid centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204002618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041234A (en) * | 2015-06-29 | 2015-11-11 | 中国石油集团渤海钻探工程有限公司 | Spiral semi-rigid centralizer |
| US12129718B1 (en) | 2023-06-02 | 2024-10-29 | Weatherford Technology Holdings, Llc | Apparatus and method to form centralizer blades on wellbore tubular |
-
2014
- 2014-03-04 CN CN201420095175.0U patent/CN204002618U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041234A (en) * | 2015-06-29 | 2015-11-11 | 中国石油集团渤海钻探工程有限公司 | Spiral semi-rigid centralizer |
| US12129718B1 (en) | 2023-06-02 | 2024-10-29 | Weatherford Technology Holdings, Llc | Apparatus and method to form centralizer blades on wellbore tubular |
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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: 20141210 Termination date: 20210304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |