CN204436282U - Ball centralizer - Google Patents
Ball centralizer Download PDFInfo
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- CN204436282U CN204436282U CN201520075393.2U CN201520075393U CN204436282U CN 204436282 U CN204436282 U CN 204436282U CN 201520075393 U CN201520075393 U CN 201520075393U CN 204436282 U CN204436282 U CN 204436282U
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- ball
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- prism
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Abstract
The utility model discloses ball centralizer, comprise centralizer main body, this centralizer main body is the hollow drum of upper and lower both ends open, the outer wall of centralizer main body is also provided with prism, prism is also provided with ball.Described prism is vertical or be inclined on the outer wall of centralizer main body.Above-mentioned ball is arranged on the sidewall of outside side of prism, and every root prism is provided with 5-6 ball.The position above-mentioned prism being arranged ball is provided with hole, a hole, and the diameter in this hole, hole and bottom radian and ball match, and the degree of depth in this hole, hole is the 2/3-3/4 of ball diameter, and this hole, hole is also provided with plug.The utility model provides ball centralizer, solve existing sleeve pipe in wellbore construction under enter difficulty problem, the difficulty entered under reducing sleeve pipe, enters efficiency under improve sleeve pipe, the safety entered under simultaneously improve sleeve pipe.
Description
Technical field
The utility model relates to a kind of cementing tool, is specifically related to a kind of ball centralizer used when casing operation.
Background technology
Currently to increase due to horizontal well in wellbore construction, and horizontal segment is longer, what have even reaches more than 1600 meters, when carrying out down-hole casing operation, due to horizontal segment length, sleeve pipe under the resistance that is subject in the process that enters larger, often cause sleeve pipe can not smoothly down to shaft bottom, especially in the end during hundreds of rice, sleeve pipe is easy to block, enter under needing the mechanical system of pounding under adopting to help sleeve pipe, but which potential safety hazard is large, be easy to damage sleeve pipe or the borehole wall, sometimes sleeve pipe can not be pounded to shaft bottom by the method completely.
Utility model content
The purpose of this utility model is to provide ball centralizer, solve existing sleeve pipe in wellbore construction under enter difficulty problem, the difficulty entered under reducing sleeve pipe, enters efficiency under improve sleeve pipe, the safety entered under simultaneously improve sleeve pipe.
To achieve these goals, the technical solution adopted in the utility model is as follows:
Ball centralizer, comprises centralizer main body, and this centralizer main body is the hollow drum of upper and lower both ends open, the outer wall of centralizer main body is also provided with prism, prism is also provided with ball.
As preferably, described prism and centralizer main body are solidified as a whole, and the quantity of this prism is six, and six prisms are evenly distributed on the outer wall of centralizer main body.
As preferably, described prism vertically or be inclined on the outer wall of centralizer main body.
Further, above-mentioned ball is arranged on the sidewall of outside side of prism, and every root prism is provided with 5-6 ball, and the line of the ball on every root prism is straight line, and the ball on every root prism is by this prism decile.
Further, the position above-mentioned prism being arranged ball is provided with hole, a hole, and the diameter in this hole, hole and bottom radian and ball match, and the degree of depth in this hole, hole is the 2/3-3/4 of ball diameter, and this hole, hole is also provided with plug.
In addition, the centre position of described plug is provided with the through hole that a diameter is less than ball, and this plug is fixed on the aperture position in hole, hole by welding or screw thread, and ball is arranged on the below of plug.
The utility model compared with prior art, has the following advantages and beneficial effect:
(1) the utility model is provided with prism on centralizer body outer wall, defines the gap that fluid can be allowed to pass through between prism and prism, makes product can better reduce the resistance received in the process used, improves the practicality of product;
(2) the utility model is provided with ball, ball is arranged in hole, hole, front end is through the through hole at plug center, sliding friction of the prior art can be become the mode of rolling, ball can run to arbitrary direction when rolling simultaneously, make product in use more flexible, reduce difficulty when product uses;
(3) the utility model greatly reduces the frictional force between centralizer and the borehole wall, and then enter difficulty under reducing sleeve pipe, enter in process to meet with obstruction under sleeve pipe thing time can also bar be passed through rotating casing between two prisms easily, thus reduce sleeve pipe under enter the probability be obstructed in process, better reduce the use difficulty of product, the efficiency entered under improve sleeve pipe, avoids under adopting mechanical system and pounds the safety that better improve use.
Accompanying drawing explanation
Fig. 1 is lateral view of the present utility model.
Fig. 2 is top view of the present utility model.
Fig. 3 is the sectional drawing of the utility model ball part.
Description of reference numerals: 1, centralizer main body; 2, prism; 3, ball; 4, plug.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail, and embodiment of the present utility model includes but not limited to the following example.
Embodiment 1
As shown in Figure 1, 2, 3, ball centralizer, comprises centralizer main body 1, and this centralizer main body 1 is the hollow drum of upper and lower both ends open, and the outer wall of centralizer main body 1 is also provided with prism 2, and prism 2 is also provided with ball 3.Described prism 2 is solidified as a whole with centralizer main body 1, and the quantity of this prism 2 is six, and six prisms 2 are evenly distributed on the outer wall of centralizer main body 1.Described prism 2 is vertical or be inclined on the outer wall of centralizer main body 1.Above-mentioned ball 3 is arranged on the sidewall of outside side of prism 2, and every root prism 2 is provided with 5 balls 3, and the line of the ball 3 on every root prism 2 is straight line, and the ball 3 on every root prism 2 is by this prism 2 decile.The position above-mentioned prism 2 being arranged ball 3 is provided with hole, a hole, and the diameter in this hole, hole and bottom radian and ball 3 match, and the degree of depth in this hole, hole is the 2/3-3/4 of ball 3 diameter, and this hole, hole is also provided with plug 4.The centre position of described plug 4 is provided with the through hole that a diameter is less than ball 3, and this plug 4 is fixed on the aperture position in hole, hole by welding or screw thread, and ball 3 is arranged on the below of plug 4.
Ball is arranged in hole, hole, sliding friction of the prior art, through the through hole at plug center, can be become the mode of rolling by front end, and ball can run to arbitrary direction when rolling simultaneously, make product in use more flexible, reduce difficulty when product uses.In addition, have gap between prism and prism, this gap can be good at fluid is passed through, and improves the convenience that product uses.
During use, first centralizer main body is enclosed within the outside of sleeve pipe, then this sleeve pipe is put into well, centralizer main body contacts with the borehole wall only by the ball being arranged on outside, greatly reduce the frictional force between centralizer and the borehole wall, and then enter difficulty under reducing sleeve pipe, enter in process to meet with obstruction under sleeve pipe thing time can also bar be passed through rotating casing between two prisms easily, thus reduce sleeve pipe under enter the probability be obstructed in process, better reduce the use difficulty of product, the efficiency entered under improve sleeve pipe, avoid under adopting mechanical system and pound the safety that better improve use.
Embodiment 2
The difference of the present embodiment and embodiment 1 is that prism is inclined on the outer wall of centralizer main body.The prism be obliquely installed can drive centralizer main body to rotate voluntarily when encountering bar, enter difficulty under reduce further sleeve pipe.
Embodiment 3
The difference of the present embodiment and embodiment 1 or 2 is that the quantity of the ball that every root prism is arranged is six.
Embodiment 4
The difference of the present embodiment and embodiment 1-4 is, be also provided with one piece of elasticity shell fragment in the bottom in hole, hole, ball is arranged on this elasticity shell fragment.This elasticity shell fragment makes ball can inwardly shrink when meeting with obstruction, and enters efficiency under further increasing sleeve pipe.
According to above-described embodiment, just the utility model can be realized well.What deserves to be explained is; under prerequisite based on said structure design; for solving same technical problem; even if some making on the utility model are without substantial change or polishing; the essence of the technical scheme adopted is still the same with the utility model, therefore it also should in protection domain of the present utility model.
Claims (6)
1. ball centralizer, comprise centralizer main body (1), it is characterized in that, the hollow drum that this centralizer main body (1) is upper and lower both ends open, the outer wall of centralizer main body (1) is also provided with prism (2), prism (2) is also provided with ball (3).
2. ball centralizer according to claim 1, is characterized in that, described prism (2) and centralizer main body (1) are solidified as a whole, and the quantity of this prism (2) is six, and six prisms (2) are evenly distributed on the outer wall of centralizer main body (1).
3. ball centralizer according to claim 2, is characterized in that, described prism (2) is vertical or be inclined on the outer wall of centralizer main body (1).
4. ball centralizer according to claim 3, it is characterized in that, described ball (3) is arranged on the sidewall of the outside side of prism (2), every root prism (2) is provided with 5-6 ball (3), the line of the ball (3) on every root prism (2) is straight line, and the ball (3) on every root prism (2) is by this prism (2) decile.
5. ball centralizer according to claim 4, it is characterized in that, the position described prism (2) being arranged ball (3) is provided with hole, a hole, the diameter in this hole, hole and bottom radian and ball (3) match, and the degree of depth in this hole, hole is the 2/3-3/4 of ball (3) diameter, and this hole, hole is also provided with plug (4).
6. ball centralizer according to claim 5, it is characterized in that, the centre position of described plug (4) is provided with the through hole that a diameter is less than ball (3), this plug (4) is fixed on the aperture position in hole, hole by welding or screw thread, and ball (3) is arranged on the below of plug (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075393.2U CN204436282U (en) | 2015-02-03 | 2015-02-03 | Ball centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075393.2U CN204436282U (en) | 2015-02-03 | 2015-02-03 | Ball centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436282U true CN204436282U (en) | 2015-07-01 |
Family
ID=53604160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520075393.2U Active CN204436282U (en) | 2015-02-03 | 2015-02-03 | Ball centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436282U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345475A (en) * | 2017-06-14 | 2017-11-14 | 西南石油大学 | Resilient balls centralizer |
-
2015
- 2015-02-03 CN CN201520075393.2U patent/CN204436282U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345475A (en) * | 2017-06-14 | 2017-11-14 | 西南石油大学 | Resilient balls centralizer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |