CN206816227U - A kind of fracturing sliding bush - Google Patents
A kind of fracturing sliding bush Download PDFInfo
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- CN206816227U CN206816227U CN201720743093.6U CN201720743093U CN206816227U CN 206816227 U CN206816227 U CN 206816227U CN 201720743093 U CN201720743093 U CN 201720743093U CN 206816227 U CN206816227 U CN 206816227U
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- Prior art keywords
- sliding sleeve
- hole
- sleeve body
- sealing
- additionally provided
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Abstract
The utility model discloses a kind of fracturing sliding bush, including top connection, sliding sleeve body, inner sliding sleeve, ball and lower contact, top connection is fixedly installed on the top of sliding sleeve body, lower contact is fixedly installed on the bottom of sliding sleeve body, the inside of sliding sleeve body is additionally provided with annular housing, the sealing that inner sliding sleeve can move up and down is matched with annular housing, the inside of sliding sleeve body is additionally provided with the first hemisphere hole, the second hemisphere hole is additionally provided with inner sliding sleeve, gear pressure wall extension is additionally provided with the top of inner sliding sleeve, the first hemisphere hole on sliding sleeve body is matched with the second hemisphere hole on inner sliding sleeve, wherein, ball is sealingly disposed in the spherical hole that the first hemisphere hole and the second hemisphere hole cooperatively form, pressure break hole is further opened with sliding sleeve body.Fracturing sliding bush described in the utility model can make inner sliding sleeve produce relative motion with sliding sleeve body by building the pressure with two kinds of different modes of pitching, expose pressure break hole.
Description
Technical field
The utility model belongs to cementing operation engineering equipment facility technology field, and in particular to a kind of fracturing sliding bush.
Background technology
Fracturing technology is oil-gas Layer is formed the oil output technique in crack by hydraulic action, passes through fracturing technology, energy
Enough flowing environments and oil well shaft bottom flox condition for improving oil in underground, slow down interlayer and improve reservoir producing situation, it is most important
Be that can increase oil well output.
For example, the patent document that Chinese invention patent application number is 201510618259.7 discloses a kind of fracturing sliding bush,
Characterized in that, the fracturing sliding bush includes：Top connection (1), upper tube body (3), lower tube body (12), transition duct bodies (20), under connect
Head (22), sliding sleeve (4), sliding sleeve mandrel (8) are counted, ball bullet pawl (14) is received, plays pawl seat (18) and stifled ball (5)；The top connection
(1), upper tube body (3), lower tube body (12), transition duct bodies (20) and lower contact (22) are sequentially connected with；Described counting sliding sleeve (4) position
In the upper tube body (3) inside and it is axially movable；Upper tube body (3) inner surface is in axial direction provided with multiple first
Detent (301), described counting sliding sleeve (4) outer surface are provided with first be engaged with first detent (301)
Positioning plays pawl (401)；Lower tube body (12) upper end is provided with spray-hole (1201)；The sliding sleeve mandrel (8) is under described
Body (12) inner upper end, and it is fixed by shear pin (9) between the lower tube body (12)；The sliding sleeve mandrel (8)
Upper end be higher than the spray-hole (1201) upper end；It is internal that the upper end for receiving ball bullet pawl (14) is located at the lower tube body (12)
Lower end, lower end is located at the transition duct bodies (20) inner upper end, and is axially movable；The bullet pawl seat (18) is located at the receipts
Below ball bullet pawl (14), the receipts ball bullet pawl (14) can enter the bullet pawl seat (18)；The internal diameter for counting sliding sleeve (4) and institute
The diameter for stating stifled ball (5) is engaged；The initial inside diameter for receiving ball bullet pawl (14) is more than the diameter of the stifled ball (5), the receipts
Ball bullet pawl (14) is less than the diameter of the stifled ball (5) into the internal diameter after the bullet pawl seat (18).
Above-mentioned prior art provides a kind of fracturing sliding bush, but the prior art exist in daily production operation it is following
Technical problem：
Sliding sleeve mandrel is temporarily fixedly connected with lower tube body using shear pin, the inertia force of pitching is insufficient to allow sliding sleeve core
Axle and lower tube body separation, cause spray-hole to expose.
Based on as above technical problem, the utility model provide a kind of fracturing sliding bush existing for prior art.
Utility model content
The utility model provides a kind of fracturing sliding bush, and the fracturing sliding bush can be by building the pressure and two kinds of different sides of pitching
Formula makes inner sliding sleeve produce relative motion with sliding sleeve body, exposes pressure break hole.
A kind of fracturing sliding bush, including top connection, sliding sleeve body, inner sliding sleeve, ball and lower contact, the top connection are fixed
The top of the sliding sleeve body is arranged on, the lower contact is fixedly installed on the bottom of the sliding sleeve body, the sliding sleeve body
Inside be additionally provided with annular housing, the sealing that the inner sliding sleeve can move up and down is matched with the annular housing, the cunning
The inside of set body is additionally provided with the first hemisphere hole, and the second hemisphere hole, the inner sliding sleeve are additionally provided with the inner sliding sleeve
Top be additionally provided with gear pressure wall extension, the first hemisphere hole on the sliding sleeve body is matched with second on the inner sliding sleeve
Hemisphere hole, wherein, the ball is sealingly disposed in the first hemisphere hole and the second hemisphere hole cooperatively forms
Spherical hole in, pressure break hole is further opened with the sliding sleeve body, sealing closure plate is additionally provided with the pressure break hole, it is described close
Plugging plate sealing is matched with the pressure break hole, and the gear pressure wall extension, which can be stressed, makes the first hemisphere hole and described the
Two hemisphere holes mutually stagger, and the inner sliding sleeve moves down along the annular housing exposes pressure break hole, the sealing closure plate
It can be stressed and depart from the pressure break hole.
Further, 3-6 pressure break hole is offered on the sliding sleeve body, the pressure break hole uniform array formula is arranged in institute
State on sliding sleeve body.
Further, poly- pressure annular groove is additionally provided with the gear pressure wall extension.
Further, sealing strip is also included on the sealing closure plate, the sealing closure plate is matched somebody with somebody by sealing strip sealing
Together in the pressure break hole.
Further, the first sealing ring, the second sealing ring and the 3rd sealing ring are also included on the inner sliding sleeve, described first
Sealing ring is arranged between the top of the inner sliding sleeve and the inwall of the sliding sleeve body, and the bottom of the inner sliding sleeve passes through described
Second sealing ring and the 3rd sealing ring coordinate with annular housing sealing.
Further, handle of blocking is further fixedly arranged on the inner sliding sleeve, handle of blocking is additionally provided with the sliding sleeve body
Chute, the handle of blocking can be moved up and down in the handle chute of blocking, and the handle of blocking can be made by the inertia force of pitching
The inner sliding sleeve moves down along the annular housing exposes the pressure break hole.
Further, the bottom of the annular housing is additionally provided with relief hole, the relief hole be communicated in annular housing and
Between the inner chamber of sliding sleeve body.
Further, the handle of blocking is provided with 4, and the handle chute of blocking opens up quantity and the handle phase of blocking
Together.
Further, the relief hole is provided with 2, and 2 relief holes are arranged on the different positions of the annular housing bottom
Put.
Compared with prior art, superior effect of the present utility model is：
Fracturing sliding bush described in the utility model, by being equipped with the first hemisphere hole, the second hemisphere hole and rubber
Ball, enable the fracturing sliding bush inner sliding sleeve is produced relative motion with sliding sleeve body by way of building the pressure, reveal pressure break hole
Go out；Handle and blocked handle chute by being equipped with to block, enable the fracturing sliding bush made by way of pitching inner sliding sleeve with
Sliding sleeve body produces relative motion, exposes pressure break hole.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of fracturing sliding bush described in the utility model；
Fig. 2 is the schematic diagram of the first hemisphere hole described in the utility model, the second hemisphere hole and ball；
Fig. 3 is the schematic diagram that gear described in the utility model presses wall extension.
Reference is as follows：
1- top connections, 2- sliding sleeves body, 21- annular housings, 211- relief holes, the first hemisphere of 22- hole, 23- pressure breaks hole,
Block handle chute, 3- inner sliding sleeves, the second hemisphere of 31- hole, the 32- gear calenderings of 231- sealings closure plate, 2311- sealing strips, 24- is stretched
The poly- pressure annular groove of wall, 321-, the sealing rings of 33- first, the sealing rings of 34- second, the sealing rings of 35- the 3rd, 36- block handle, 4- rubber
Ball, 5- lower contacts.
Embodiment
The utility model embodiment is elaborated below.
Embodiment 1
As illustrated in the accompanying drawings from 1 to 3, a kind of fracturing sliding bush, including top connection 1, sliding sleeve body 2, inner sliding sleeve 3, ball 4 and under
Joint 5, the top connection 1 are fixedly installed on the top of the sliding sleeve body 2, and the lower contact 5 is fixedly installed on the sliding sleeve
The bottom of body 2, the inside of the sliding sleeve body 2 are additionally provided with annular housing 21, and the inner sliding sleeve 3 can move up and down close
Envelope is matched with the annular housing 21, and the inside of the sliding sleeve body 2 is additionally provided with the first hemisphere hole 22, the inner sliding sleeve 3
On be additionally provided with the second hemisphere hole 31, the top of the inner sliding sleeve 3 is additionally provided with gear pressure wall extension 32, the sliding sleeve body 2
On the first hemisphere hole 22 be matched with the second hemisphere hole 31 on the inner sliding sleeve 3, wherein, the sealing of ball 4 is set
Put in the spherical hole that the first hemisphere hole 22 and the second hemisphere hole 31 cooperatively form, the sliding sleeve body 2
On be further opened with pressure break hole 23, be additionally provided with the pressure break hole 23 sealing closure plate 231, it is described sealing closure plate 231 sealing coordinate
In the pressure break hole 23, the gear pressure wall extension 32, which can be stressed, makes the first hemisphere hole 22 and the second half ball
Hole 31 is mutually staggered, and the inner sliding sleeve 3 moves down along the annular housing 21 exposes pressure break hole 23, the sealing closure plate
231, which can be stressed, departs from the pressure break hole 23.
Further, 3-6 pressure break hole 23, the uniform array formula of pressure break hole 23 row are offered on the sliding sleeve body 2
Cloth is on the sliding sleeve body 2.
Further, poly- pressure annular groove 321 is additionally provided with the gear pressure wall extension 32.
Further, sealing strip 2311 is also included on the sealing closure plate 231, the sealing closure plate 231 passes through described close
The sealing of strip of paper used for sealing 2311 is matched with the pressure break hole 23.
Further, the first sealing ring 33, the second sealing ring 34 and the 3rd sealing ring 35 are also included on the inner sliding sleeve 3,
First sealing ring 33 is arranged between the top of the inner sliding sleeve 3 and the inwall of the sliding sleeve body 2, the inner sliding sleeve 3
Bottom pass through second sealing ring 34 and the 3rd sealing ring 35 and coordinate with the annular housing 21 sealing.
Embodiment 2
Handle 36 of blocking is further fixedly arranged on the inner sliding sleeve 3, handle chute of blocking is additionally provided with the sliding sleeve body 2
24, the handle 36 of blocking can move up and down in the handle chute 24 of blocking, and the handle 36 of blocking can be by the inertia of pitching
Power, which makes the inner sliding sleeve 3 be moved down along the annular housing 21, exposes the pressure break hole 23.In embodiment 1 in the present embodiment
On the basis of add handle 36 of blocking, block handle chute 24 and the technical characteristic of pitching, in addition, with phase in embodiment 1
Together.
Further, the bottom of the annular housing 21 is additionally provided with relief hole 211, and the relief hole 211 is communicated in ring
Between the inner chamber of shape cavity 21 and sliding sleeve body 2.
Further, the handle 36 of blocking is provided with 4, and the handle chute 24 of blocking opens up quantity and the handle of blocking
36 is identical.
Further, the relief hole 211 is provided with 2, and 2 relief holes 211 are arranged on the bottom of annular housing 21
Diverse location.
The utility model is not limited to above-mentioned embodiment, in the case of without departing substantially from substantive content of the present utility model,
It may occur to persons skilled in the art that any deformation, improvement, replacement each fall within the scope of protection of the utility model.
Claims (9)
1. a kind of fracturing sliding bush, including top connection, sliding sleeve body, inner sliding sleeve, ball and lower contact, the top connection is fixed and set
Put at the top of the sliding sleeve body, the lower contact is fixedly installed on the bottom of the sliding sleeve body, the sliding sleeve body
Inside is additionally provided with annular housing, and the sealing that the inner sliding sleeve can move up and down is matched with the annular housing, and its feature exists
In the inside of the sliding sleeve body is additionally provided with the first hemisphere hole, and the second hemisphere hole, institute are additionally provided with the inner sliding sleeve
State and gear pressure wall extension is additionally provided with the top of inner sliding sleeve, the first hemisphere hole on the sliding sleeve body is matched with the inner sliding sleeve
On the second hemisphere hole, wherein, the ball is sealingly disposed in the first hemisphere hole and the second hemisphere hole
In the spherical hole cooperatively formed, it is further opened with pressure break hole, seal plug being additionally provided with the pressure break hole on the sliding sleeve body
Plate, the sealing closure plate sealing are matched with the pressure break hole, and the gear pressure wall extension, which can be stressed, makes the first half ball
Hole and the second hemisphere hole mutually stagger, and the inner sliding sleeve moves down along the annular housing exposes pressure break hole, institute
State sealing closure plate and can be stressed and depart from the pressure break hole.
2. fracturing sliding bush according to claim 1, it is characterised in that 3-6 pressure break hole is offered on the sliding sleeve body,
The pressure break hole uniform array formula is arranged on the sliding sleeve body.
3. fracturing sliding bush according to claim 1, it is characterised in that be additionally provided with poly- pressure ring shape on the gear pressure wall extension
Groove.
4. fracturing sliding bush according to claim 1, it is characterised in that also include sealing strip on the sealing closure plate, it is described
Sealing closure plate is matched with the pressure break hole by sealing strip sealing.
5. fracturing sliding bush according to claim 1, it is characterised in that also include the first sealing ring, the on the inner sliding sleeve
Two sealing rings and the 3rd sealing ring, first sealing ring are arranged on the top of the inner sliding sleeve and the inwall of the sliding sleeve body
Between, the bottom of the inner sliding sleeve is matched somebody with somebody by second sealing ring and the 3rd sealing ring with annular housing sealing
Close.
6. fracturing sliding bush according to claim 1, it is characterised in that handle of blocking is further fixedly arranged on the inner sliding sleeve,
Handle chute of blocking is additionally provided with the sliding sleeve body, the handle of blocking can move up and down in the handle chute of blocking, institute
Stating handle of blocking the inner sliding sleeve can be made to be moved down along the annular housing by the inertia force of pitching exposes the pressure break hole.
7. fracturing sliding bush according to claim 6, it is characterised in that the bottom of the annular housing is additionally provided with pressure release
Hole, the relief hole are communicated between the inner chamber of annular housing and sliding sleeve body.
8. fracturing sliding bush according to claim 6, it is characterised in that the handle of blocking is provided with 4, the handle cunning of blocking
Groove to open up quantity identical with the handle of blocking.
9. fracturing sliding bush according to claim 7, it is characterised in that the relief hole is provided with 2, and 2 relief holes are set
Put the diverse location in the annular housing bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720743093.6U CN206816227U (en) | 2017-06-25 | 2017-06-25 | A kind of fracturing sliding bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720743093.6U CN206816227U (en) | 2017-06-25 | 2017-06-25 | A kind of fracturing sliding bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206816227U true CN206816227U (en) | 2017-12-29 |
Family
ID=60761926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720743093.6U Expired - Fee Related CN206816227U (en) | 2017-06-25 | 2017-06-25 | A kind of fracturing sliding bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206816227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397422A (en) * | 2019-07-10 | 2019-11-01 | 东北石油大学 | A kind of underground sliding bush switching device counting mechanism |
-
2017
- 2017-06-25 CN CN201720743093.6U patent/CN206816227U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397422A (en) * | 2019-07-10 | 2019-11-01 | 东北石油大学 | A kind of underground sliding bush switching device counting mechanism |
| CN110397422B (en) * | 2019-07-10 | 2021-10-29 | 东北石油大学 | Counting mechanism for underground sliding sleeve opening and closing device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 Termination date: 20180625 |