CN203822160U - Grouting anti-overflow device for bushing - Google Patents
Grouting anti-overflow device for bushing Download PDFInfo
- Publication number
- CN203822160U CN203822160U CN201420209647.0U CN201420209647U CN203822160U CN 203822160 U CN203822160 U CN 203822160U CN 201420209647 U CN201420209647 U CN 201420209647U CN 203822160 U CN203822160 U CN 203822160U
- Authority
- CN
- China
- Prior art keywords
- outer sleeve
- sleeve
- overflow device
- bushing
- grouting
- 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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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model discloses a grouting anti-overflow device for a bushing, which comprises an outer sleeve and an inner sleeve arranged in the outer sleeve. The upper part of the outer sleeve is connected with a slurry pipe through a union. An annular hollow space is formed between the outer sleeve and the inner sleeve. A movable spiral flow-guiding groove is arranged in the annular hollow space. The movable spiral flow-guiding groove is fixed through a bushing. The bottom of the bushing is provided with a fixed clamping block. The lower end of the fixed clamping block is provided with a rubber cushion. The bottom of the outer sleeve is communicated with a central vent hole in the inner sleeve. The cross-sectional area of the movable spiral flow-guiding groove is varied from large to small. The outside of the outer sleeve is provided with a fixed bilateral plate. The fixed bilateral plate is in the form of a circular shielding plate formed through buckling two semi-circular plates as a whole. The grouting anti-overflow device for the bushing has the advantages of simple structure, light weight and convenient operation, and can be applied to various types of drilling machines. By means of the device, the continuous grouting operation is realized, and the grouting-pausing time for venting purpose is saved.
Description
Technical field
The utility model relates to a kind of oil drilling device, particularly relates to a kind of non-Self-filling casing grouting anti-overflow device.
Background technology
In current domestic casing job process, regulation is often lowered to 5-10 root sleeve pipe and will fills drilling fluid one time, still rest on well cementation pipeline interpolation for the grouting pattern of this type of non-Self-filling casing and enter the way in sleeve pipe, because slurry fluid is subject to the impact of air resistance in sleeve pipe in decline process, fluid column is disperseed, under long time integration, form liquid interlayer, cause air effectively outside discharge pipe, cause mud to gush out, therefore need often to stop to fill with exhaust, moving casing, length consuming time and easily occur cutting ferrule run affairs therefore.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of easy to operate, simple in structure, non-Self-filling casing grouting anti-overflow device of being suitable for all kinds rig.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the effective grouting anti-overflow device of a kind of cover, comprise outer sleeve and be arranged on the inner sleeve in outer sleeve, the upside of described outer sleeve connects mud tube by union, in the middle of described outer sleeve and inner sleeve, form annular space, in this annular space, be provided with movable spiral guiding gutter, described movable spiral guiding gutter is fixed by sleeve pipe; Described sleeve pipe top is tube head, and bottom is the semicanal of cutting open, supports by fixture block, and described fixture block lower end is provided with rubber mat; Outer sleeve communicates with the central row pore of inner sleeve in bottom.
Cross-sectional area is from large to small from top to bottom for described spiral stream guidance groove.
The outside of described outer sleeve is provided with dual-sided board and fixes.
The beneficial effects of the utility model are: simple in structure, lightweight, easy to operate, be suitable for all kinds rig, and realize continuous grouting operation, save the time that stops filling with exhaust.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model overlaps effective grouting anti-overflow device.
Wherein:
1, connect union 2, spiral stream guidance groove 3, sleeve pipe
4, dual-sided board 5, fixture block 6, rubber mat
7, central row pore 8, outer sleeve 9, inner sleeve
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1, the effective grouting anti-overflow device of a kind of cover, comprise outer sleeve 9 and be arranged on the inner sleeve 8 in outer sleeve 9, the upside of described outer sleeve 9 connects mud tube by union 1, in the middle of described outer sleeve 9 and inner sleeve 8, form annular space, in annular space, add movable spiral guiding gutter 2, slurry fluid changes eddy flow by direct current into through spiral stream guidance groove, described movable spiral guiding gutter 2 is fixing by sleeve pipe 3, described sleeve pipe 3 is provided with fixture block 5 in bottom fixing, described sleeve pipe 3 tops are tube head 31, bottom is the semicanal 32 of cutting open, support by fixture block 5, described fixing fixture block 5 lower ends are rubber mats 6, outer sleeve 9 communicates with the central row pore 7 of inner sleeve 8 in bottom.When mud is moved downward by spiral stream guidance groove 2, inner gas being brought into Hou Cong center, bottom steam vent 7 upwards discharges.Described spiral stream guidance groove cross-sectional area from large to small, effectively increases the flow velocity of mud in guiding gutter, and centrifugal force also increases thereupon, decline via casing wall rotation again, can reduce the air resistance in decline process middle sleeve, prevent that mud from disperseing, and ensures outside gas drain sleeve.The outside of described outer sleeve 9 is provided with fixing dual-sided board 4, and described fixing dual-sided board 4 is that two semi-circular plates close the circular backplate that is buckled together formation.
The operating principle of this device
On device annular space, be covered with spiral stream guidance groove, cross-sectional area, helical pitch and the angle of outlet of guiding gutter is to affect the parameter that eddy flow forms.Slurry fluid enters rotary body chute through union joint and puts english, and carries out as enforceable cylindrical screw motion, and the fluid that adds supination produces axial velocity, tangential velocity forms centrifugal force.And spiral stream guidance groove cross-sectional area from large to small, and flow velocity is increased progressively, centrifugal force also increases thereupon, then declines via casing wall rotation.
In an embodiment of the present utility model, coiled tubing is Ф 60mm with the maximum gauge of the central row pore of self-rotating nozzle, and device top maximum outside diameter is Ф 200mm.
This structure all adopts parts interpolation type to install, and outside fixed housing adopts and closes button bilateral fixed head, simple to operate.
Claims (4)
1. the effective grouting anti-overflow device of cover, comprise outer sleeve (9) and be arranged on the inner sleeve (8) in outer sleeve (9), the upside of described outer sleeve (9) connects mud tube by union (1), it is characterized in that: in the middle of described outer sleeve (9) and inner sleeve (8), form annular space, in this annular space, be provided with movable spiral guiding gutter (2), described movable spiral guiding gutter (2) is fixing by sleeve pipe (3); Described sleeve pipe (3) top is tube head (31), and bottom is the semicanal (32) of cutting open, supports by fixture block (5), and described fixture block (5) lower end is provided with rubber mat (6); Outer sleeve (9) communicates with the central row pore (7) of inner sleeve (8) in bottom.
2. the effective grouting anti-overflow device of cover according to claim 1, is characterized in that: cross-sectional area is from large to small from top to bottom for described spiral stream guidance groove.
3. the effective grouting anti-overflow device of cover according to claim 1, is characterized in that: it is fixing that the outside of described outer sleeve (9) is provided with dual-sided board (4).
4. the effective grouting anti-overflow device of cover according to claim 3, is characterized in that: described fixing dual-sided board (4) is to be closed and be buckled together the cylindrical shape backplate forming by two semi-cylindrical shaped plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209647.0U CN203822160U (en) | 2014-04-25 | 2014-04-25 | Grouting anti-overflow device for bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420209647.0U CN203822160U (en) | 2014-04-25 | 2014-04-25 | Grouting anti-overflow device for bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822160U true CN203822160U (en) | 2014-09-10 |
Family
ID=51477673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420209647.0U Expired - Fee Related CN203822160U (en) | 2014-04-25 | 2014-04-25 | Grouting anti-overflow device for bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201641A (en) * | 2018-09-20 | 2019-01-15 | 迈克医疗电子有限公司 | Anti-overflow device for cleaning device |
-
2014
- 2014-04-25 CN CN201420209647.0U patent/CN203822160U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109201641A (en) * | 2018-09-20 | 2019-01-15 | 迈克医疗电子有限公司 | Anti-overflow device for cleaning device |
| CN109201641B (en) * | 2018-09-20 | 2024-03-15 | 迈克医疗电子有限公司 | Anti-overflow device for cleaning device |
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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: 20140910 Termination date: 20170425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |