CN103806867B - Flow-controllable sliding sleeve - Google Patents
Flow-controllable sliding sleeve Download PDFInfo
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- CN103806867B CN103806867B CN201410046491.3A CN201410046491A CN103806867B CN 103806867 B CN103806867 B CN 103806867B CN 201410046491 A CN201410046491 A CN 201410046491A CN 103806867 B CN103806867 B CN 103806867B
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Abstract
The invention relates to the technical field of sliding sleeves for well-completion practice, and discloses a flow-controllable sliding sleeve. The flow-controllable sliding sleeve comprises an upper joint, a double-female joint, a lower joint and an inner sliding sleeve. The outer side of the lower portion of the upper joint is fixed together with the upper portion of the double-female joint, the lower portion of the double-female joint is fixed together with the outer side of the upper portion of the lower joint, a first annular groove, a second annular groove and a third annular groove are sequentially formed in the inner side of the lower joint at intervals from top to bottom, and the inner sliding sleeve is sequentially arranged on the inner side of the upper joint, the inner side of the double-female joint and the inner side of the lower joint from top to bottom in a sleeved mode. The flow-controllable sliding sleeve is reasonable and compact in structure and convenient to use, in the well-completion practice process, a communication channel between the inner sliding sleeve and an oil gas layer can be closed through the arrangement of an upper strip-shaped through hole, a radial through hole, a radial outer through hole, the first annular groove, the second annular groove and the third annular groove, and meanwhile the flow of oil gas entering the flow-controllable sliding sleeve can be changed according to oil recovery requirements.
Description
Technical field
This utility model relates to the sliding sleeve technical field of completion practice, is a kind of flow-controllable sliding sleeve.
Background technology
Completion practice is the important technical of linking drilling well and oil producing operation, and meanwhile, completion practice is again dangerous
Underground work, therefore, the success or not of completion practice, will result directly in the success or failure of a bite well.Particularly now with shale
Deepening continuously of the unconventionaloil pool field explorations such as gas and densification oil, people are for carrying out the research of such Reservoir Development also not
Disconnected reinforcement.For the exploitation of such oil-gas reservoir, carrying out pressure break completion is also requisite technological means.No matter it is conventional gas and oil
The completion practice hidden or unconventionaloil pool hide the completion practice of Oil/gas Well, and an indispensable technological means utilizes cunning exactly
Bottom oil layer is exploited by set.In the completion practice of conventional oil gas reservoir, utilize sliding sleeve that oil reservoir and oil pipe inner chamber are joined
Logical.The most conventional sliding sleeve can not change oil gas and enter the uninterrupted in sliding sleeve, simultaneously, it is impossible to according to being actually needed of recovering the oil
Close the through hole on sliding sleeve, thus destroy oil-gas reservoir.
Summary of the invention
This utility model provides a kind of flow-controllable sliding sleeve, overcomes the deficiency of above-mentioned prior art, and it can efficient solution
What certainly existing sliding sleeve existed in actual use can not change the uninterrupted entered in sliding sleeve and can not close on sliding sleeve
The problem of through hole.
The technical solution of the utility model is realized by following measures: a kind of flow-controllable sliding sleeve, including on connect
Head, double female joint, lower contact and inner sliding sleeve, the lower outside of top connection is fixed together with double female joint tops, double female joints
The upper outside of bottom and lower contact be fixed together, be the most sequentially arranged at intervals with first annular inside lower contact
Groove, the second annular groove and the 3rd annular groove, inner sliding sleeve be the most sequentially sleeved on top connection, double female joint and under connect
The inner side of head, the lower end outside at inner sliding sleeve is fixed with limit convex that can be corresponding with the second annular groove and the 3rd annular groove
Platform, positive stop lug boss is sleeved in first annular groove, circumferentially has the radial direction no less than two at the middle part of double female joints
Accessibke porosity, circumferentially has the upper strip through-hole that can communicate with radial direction accessibke porosity, under inner sliding sleeve on the top of inner sliding sleeve
Be provided with limited impression inside end, in limited impression, circumferentially have lower strip through-hole, below upper strip through-hole in
The radial direction through hole that can communicate is had with radial direction accessibke porosity on sliding sleeve, solid between inner sliding sleeve and the double female joint above radial direction accessibke porosity
Dingan County, equipped with the first black box, is installed with the second sealing between inner sliding sleeve and the double female joint below radial direction accessibke porosity
Assembly, is provided with external screw thread or female thread on top connection top and lower contact bottom.
Further optimization and/or improvements to above-mentioned utility model technical scheme are presented herein below:
Can have inside above-mentioned pair of female joint and the buffering land that radially accessibke porosity communicates.
The upper inner of above-mentioned pair of female joint can have the first sealing land, first seal land and top connection bottom it
Between be installed with the first black box, be positioned at above the first sealing land double female joints on have fixed card slot, first
Black box includes the first back-up ring, the second back-up ring, third gear circle, upper sealing ring, fourth gear circle, fifth gear circle, sixth gear circle, consolidates
Determine snap ring, the 7th back-up ring the I, the 8th back-up ring I, lower seal the I, the 9th back-up ring I, adjust snap ring the I and the tenth back-up ring I, the first back-up ring,
Second back-up ring, third gear circle, upper sealing ring, fourth gear circle, fifth gear circle, sixth gear circle, fixing snap ring, the 7th back-up ring the I, the 8th
Back-up ring I, lower seal the I, the 9th back-up ring I, adjustment snap ring the I and the tenth back-up ring I sequential from top to bottom, the outside of fixing snap ring
It is positioned at fixed card slot；The second sealing land it is fixed with, at the second sealing ring inside double female joints below radial direction accessibke porosity
Be installed with the second black box between platform and lower contact, the second black box include the 7th back-up ring the II, the 8th back-up ring II, under
Sealing ring the II, the 9th back-up ring II, adjust snap ring the II and the tenth back-up ring II, the 7th back-up ring the II, the 8th back-up ring II, lower seal II,
9th back-up ring II, adjustment snap ring the II and the tenth back-up ring II sequential from top to bottom.
Can have, outside the above-mentioned inner sliding sleeve corresponding with radial direction through hole, the outer groove communicated with radial direction through hole, in double female joints
Middle part is the most circumferentially evenly distributed with the radial direction accessibke porosity of two circles, and the quantity of the radial direction accessibke porosity of each circle is no less than two
Individual, strip through-hole on the top of inner sliding sleeve is circumferentially evenly distributed with, on the inner sliding sleeve below upper strip through-hole from and
Under circumferentially have the radial direction through hole of two circles, the quantity of the radial direction through hole of each circle is no less than two.
Convex platform can be fixed with inside the upper end of above-mentioned inner sliding sleeve.
The lower outside of above-mentioned top connection can be threadably secured with double female joint tops and be installed together, double female joints
The upper outside of bottom and lower contact is threadably secured and is installed together, between the upper outside and double female joint of top connection
Being installed with auxiliary seal ring and secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring, in the bottom of double female joints
And being installed with auxiliary seal ring and secondary baffle between the upper outside of lower contact, secondary baffle is positioned at auxiliary seal ring
Outside.
This utility model reasonable and compact in structure, easy to use, it is during completion practice, upper strip through-hole, radially
The setting of through hole, radially accessibke porosity, first annular groove, the second annular groove and the 3rd annular groove can complete to close interior cunning
Set and the communication passage of oil-gas Layer, meanwhile, it is capable to enter uninterrupted of the present utility model according to the change oil gas that needs recovered the oil.
Accompanying drawing explanation
Accompanying drawing 1 is that the master of this utility model most preferred embodiment top half regards half section structural representation.
Accompanying drawing 2 is that the master of this utility model most preferred embodiment the latter half regards half section structural representation.
Accompanying drawing 3 is the partial enlargement structural representation in accompanying drawing 1 at A.
Accompanying drawing 4 is the partial enlargement structural representation in accompanying drawing 2 at B
It is top connection that coding in accompanying drawing is respectively as follows: 1, and 2 is double female joints, and 3 is lower contact, and 4 is inner sliding sleeve, and 5 is first
Annular groove, 6 is the second annular groove, and 7 is the 3rd annular groove, and 8 is positive stop lug boss, and 9 is radial direction accessibke porosity, and 10 is upper bar shaped
Through hole, 11 is limited impression, and 12 is lower strip through-hole, and 13 is radial direction through hole, and 14 is buffering land, and 15 is the first back-up ring, and 16 are
Second back-up ring, 17 is third gear circle, and 18 is upper sealing ring, and 19 is fourth gear circle, and 20 is fifth gear circle, and 21 is sixth gear circle, 22
For fixing snap ring, 23 is the 7th back-up ring, and 24 is the 8th back-up ring, and 25 is lower seal, and 26 is the 9th back-up ring, and 27 for adjusting snap ring,
28 is the tenth back-up ring, and 29 is outer groove, and 30 is convex platform, and 31 is auxiliary seal ring, and 32 is secondary baffle, and 33 is the first sealing ring
Platform, 34 is the second sealing land.
Detailed description of the invention
This utility model is not limited by following embodiment, can come with practical situation according to the technical solution of the utility model
Determine specific embodiment.
In this utility model, for the ease of describing, the description of the relative position relation of each parts is all according to description
The Butut mode of accompanying drawing 1 is described, such as: the position relationship of forward and backward, upper and lower, left and right etc. is based on Figure of description 1
Butut direction determine.
Below in conjunction with embodiment and accompanying drawing, this utility model is further described:
As shown in accompanying drawing 1 to 4, this flow-controllable sliding sleeve includes top connection 1, double female joint 2, lower contact 3 and inner sliding sleeve 4,
The lower outside of top connection 1 is fixed together with double female joint 2 tops, the bottom of double female joints 2 and the upper outside of lower contact 3
It is fixed together, inside lower contact 3, is the most sequentially arranged at intervals with first annular groove the 5, second annular groove 6 and
Three annular grooves 7, inner sliding sleeve 4 is the most sequentially sleeved on top connection 1, double female joint 2 and the inner side of lower contact 3, in interior cunning
The lower end outside of set 4 is fixed with positive stop lug boss 8 that can be corresponding with the second annular groove 6 and the 3rd annular groove 7, positive stop lug boss 8
It is sleeved in first annular groove 5, circumferentially has the radial direction accessibke porosity 9 no less than two at the middle part of double female joints 2,
The upper strip through-hole 10 that can communicate with radial direction accessibke porosity 9 is circumferentially arranged at the top of inner sliding sleeve 4, in the lower end of inner sliding sleeve 4
Side is provided with limited impression 11, circumferentially has lower strip through-hole 12 in limited impression 11, below upper strip through-hole 10
Inner sliding sleeve 4 on have the radial direction through hole 13 that can communicate with radial direction accessibke porosity 9, inner sliding sleeve above radial direction accessibke porosity 94 is female with double
The first black box it is installed with between joint 2, fixing between inner sliding sleeve 4 and the double female joint 2 below radial direction accessibke porosity 9
Second black box is installed, top connection 1 top and lower contact 3 bottom are provided with external screw thread or female thread.When positive stop lug boss 8
When walking in first annular groove 5, upper strip through-hole 10, lower strip through-hole 12 and the radial direction through hole 13 on inner sliding sleeve 4 with radially
Accessibke porosity 9 is in the state being not communicated with, and now, the oil gas outside inner sliding sleeve 4 can not enter in inner sliding sleeve 4, thus closes oil
Gas-bearing formation and communication passage this utility model within, when positive stop lug boss 8 walks in the second annular groove 6, radial direction through hole 13 and
Radially accessibke porosity 9 is in the state communicated, and now the oil gas of oil-gas Layer passes through entrance this utility model that radial direction through hole 13 is a small amount of
Inside, when positive stop lug boss 8 walks in the 3rd annular groove 7, upper strip through-hole 10 is in, with radially accessibke porosity 9, the shape communicated
State, now the oil gas of oil-gas Layer passes through inside radial direction through hole 13 substantial amounts of entrance this utility model, therefore, upper strip through-hole 10,
The setting of radial direction through hole 13, radially accessibke porosity 9, first annular groove the 5, second annular groove 6 and the 3rd annular groove 7 can be complete
Become to close the communication passage of inner sliding sleeve 4 and oil-gas Layer, meanwhile, it is capable to enter this utility model according to the change oil gas that needs recovered the oil
Uninterrupted.
According to actual needs above-mentioned flow-controllable sliding sleeve can be made further optimization and/or improvements:
As shown in accompanying drawing 1 to 4, have inside double female joints 2 and the buffering land 14 that radially accessibke porosity 9 communicates.
As shown in accompanying drawing 1 to 4, the upper inner in double female joints 2 has the first sealing land 33, seals land 33 first
And be installed with the first black box between the bottom of top connection 1, be positioned at above the first sealing land 33 double mothers connect
Have fixed card slot on 2, the first black box include first back-up ring the 15, second back-up ring 16, third gear circle 17, upper sealing ring 18,
Fourth gear circle 19, fifth gear circle 20, sixth gear circle 21, fixing snap ring the 22, the 7th back-up ring the I 23, the 8th back-up ring I 24, lower seal I
25, the 9th back-up ring I 26, adjust snap ring I 27 and the tenth back-up ring I 28, first back-up ring the 15, second back-up ring 16, third gear circle 17, upper close
Seal 18, fourth gear circle 19, fifth gear circle 20, sixth gear circle 21, fixing snap ring the 22, the 7th back-up ring the I 23, the 8th back-up ring I 24, under
Sealing ring the I 25, the 9th back-up ring I 26, adjustment snap ring I 27 and the tenth back-up ring I 28 sequential from top to bottom, outside fixing snap ring 22
Portion is positioned at fixed card slot；The second sealing land 34 it is fixed with, second inside double female joints 2 below radial direction accessibke porosity 9
Seal and be installed with the second black box between land 34 and lower contact 3, the second black box include the 7th back-up ring II 23, the
Eight back-up rings II 24, lower seal the II 25, the 9th back-up ring II 26, adjustment snap ring II 27 and the tenth back-up ring II 28, the 7th back-up ring II 23,
8th back-up ring II 24, lower seal the II 25, the 9th back-up ring II 26, adjustment snap ring II 27 and the tenth back-up ring II 28 are the most sequentially
Arrangement.The setting of fixing snap ring 22 and adjustment snap ring I 27 can be effectively prevented first gear during inner sliding sleeve 4 slides
Circle the 15, second back-up ring 16, third gear circle 17, upper sealing ring 18, fourth gear circle 19, fifth gear circle 20, sixth gear circle the 21, the 7th gear
Enclose loosening of the I 23, the 8th back-up ring I 24, lower seal the I 25, the 9th back-up ring I 26 and the tenth back-up ring I 28, further increase sealing
Property.
As shown in accompanying drawing 1 to 4, have outside the inner sliding sleeve 4 corresponding with radial direction through hole 13 outside communicating with radial direction through hole 13
Annular groove 29, is the most circumferentially evenly distributed with the radial direction accessibke porosity 9 of two circles, the footpath of each circle at the middle part of double female joints 2
To the quantity of accessibke porosity 9 no less than two, strip through-hole 10 on the top of inner sliding sleeve 4 is circumferentially evenly distributed with, at upper bar
The radial direction through hole 13 of two circles, the radial direction through hole of each circle is the most circumferentially had on inner sliding sleeve 4 below shape through hole 10
The quantity of 13 is no less than two.
As shown in accompanying drawing 1 to 4, inside the upper end of inner sliding sleeve 4, it is fixed with convex platform 30.The setting of convex platform 30 can be led to
Crossing down aid, aid is stuck in the bottom of convex platform 30, then by above carrying aid by the interior cunning after descending
Set 4 reset.
As shown in accompanying drawing 1 to 4, the lower outside of top connection 1 is threadably secured with double female joint 2 tops and is arranged on one
Rising, the bottom of double female joints 2 is threadably secured with the upper outside of lower contact 3 and is installed together, outside the top of top connection 1
Being installed with auxiliary seal ring 31 and secondary baffle 32 between side and double female joint 2, secondary baffle 32 is positioned at auxiliary seal ring
The outside of 31, is installed with auxiliary seal ring 31 and auxiliary between the bottom and the upper outside of lower contact 3 of double female joints 2
Back-up ring 32, secondary baffle 32 is positioned at the outside of auxiliary seal ring 31.The setting of auxiliary seal ring 31 and secondary baffle 32 can be entered
One step improves sealing.
Above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger adaptability and optimal enforcement
Effect, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
The use process of this utility model most preferred embodiment: first, by top connection 1 and lower contact 3 respectively with external tubing string
It is threadably secured and is installed together, pushing member (existing known technology) seat, on limited impression 11, is passed through pushing member
Promote inner sliding sleeve 4 descending, when the positive stop lug boss 8 on inner sliding sleeve 4 comes downwards to the second annular groove 6, radial direction through hole 13 with under
To buffering land 14, now, radial direction through hole 13 is in, with radially accessibke porosity 9, the state communicated, and then, double female joints 2 are outside
Oil gas sequentially formed by entrance top connection 1, double female joint 2 and lower contact 3 that radially accessibke porosity 9 and radial direction through hole 13 are a small amount of
Inner chamber in, continue to press on inner sliding sleeve 4 descending, when the positive stop lug boss 8 on inner sliding sleeve 4 comes downwards to three annular grooves 7, bar shaped
Through hole comes downwards to buffer at land 14, and now, strip through-hole is in the state communicated, then, double female joints with radially accessibke porosity 9
Oil gas outside 2 is sequentially by radially accessibke porosity 9 and strip through-hole substantial amounts of entrance top connection 1, double female joint 2 and lower contact 3
In the inner chamber formed, carry out oil producing operation.
Claims (17)
1. a flow-controllable sliding sleeve, it is characterised in that include top connection, double female joint, lower contact and inner sliding sleeve, top connection
Lower outside is fixed together with double female joint tops, and the bottom of double female joints is fixed together with the upper outside of lower contact,
First annular groove, the second annular groove and the 3rd annular groove the most sequentially it is arranged at intervals with inside lower contact, interior
Sliding sleeve is the most sequentially sleeved on top connection, double female joint and the inner side of lower contact, and the lower end outside at inner sliding sleeve is fixed with
Positive stop lug boss that can be corresponding with the second annular groove and the 3rd annular groove, positive stop lug boss is sleeved in first annular groove,
Circumferentially there is the radial direction accessibke porosity no less than two at the middle part of double female joints, circumferentially has energy on the top of inner sliding sleeve
The upper strip through-hole communicated with radial direction accessibke porosity, the lower end inside at inner sliding sleeve is provided with limited impression, edge in limited impression
Circle distribution has lower strip through-hole, the inner sliding sleeve below upper strip through-hole has the radial direction that can communicate with radial direction accessibke porosity lead to
Hole, is installed with the first black box, at radial direction accessibke porosity between inner sliding sleeve and the double female joint above radial direction accessibke porosity
It is installed with the second black box between inner sliding sleeve and double female joint of lower section, top connection top is provided with external screw thread or interior
Screw thread, is provided with external screw thread or female thread in lower contact bottom.
Flow-controllable sliding sleeve the most according to claim 1, it is characterised in that have inside double female joints and radially accessibke porosity phase
Logical buffering land.
Flow-controllable sliding sleeve the most according to claim 1 and 2, it is characterised in that the upper inner of double female joints has first close
Seal ring platform, seals first and is installed with the first black box between land and the bottom of top connection, be positioned at the first sealing
Above land double female joints on have fixed card slot, the first black box include the first back-up ring, the second back-up ring, third gear circle,
Upper sealing ring, fourth gear circle, fifth gear circle, sixth gear circle, fixing snap ring, the 7th back-up ring I, the 8th back-up ring I, lower seal I, the
Nine back-up rings I, adjust snap ring the I and the tenth back-up ring I, the first back-up ring, the second back-up ring, third gear circle, upper sealing ring, fourth gear circle, the
Five back-up rings, sixth gear circle, fixing snap ring, the 7th back-up ring the I, the 8th back-up ring I, lower seal the I, the 9th back-up ring I, adjustment snap ring I and
Tenth back-up ring I sequential from top to bottom, the outside of fixing snap ring is positioned at fixed card slot；Double mothers below radial direction accessibke porosity
It is fixed with the second sealing land inside joint, seals second and be installed with the second black box between land and lower contact,
Second black box includes the 7th back-up ring the II, the 8th back-up ring II, lower seal the II, the 9th back-up ring II, adjusts snap ring II and the tenth
Back-up ring II, the 7th back-up ring the II, the 8th back-up ring II, lower seal the II, the 9th back-up ring II, adjustment snap ring the II and the tenth back-up ring II are from upper
And lower sequential.
Flow-controllable sliding sleeve the most according to claim 1 and 2, it is characterised in that outside the inner sliding sleeve corresponding with radial direction through hole
Having the outer groove communicated with radial direction through hole, the footpath being the most circumferentially evenly distributed with two circles at the middle part of double female joints is outside
Through hole, the quantity of the radial direction accessibke porosity of each circle is no less than two, bar shaped on the top of inner sliding sleeve is circumferentially evenly distributed with
Through hole, the inner sliding sleeve below upper strip through-hole the most circumferentially has the radial direction through hole of two circles, the footpath of each circle
To the quantity of through hole no less than two.
Flow-controllable sliding sleeve the most according to claim 3, it is characterised in that have outside the inner sliding sleeve corresponding with radial direction through hole
The outer groove communicated with radial direction through hole, the footpath being the most circumferentially evenly distributed with two circles at the middle part of double female joints outwards leads to
Hole, the quantity of the radial direction accessibke porosity of each circle is no less than two, and on the top of inner sliding sleeve is circumferentially evenly distributed with, bar shaped is led to
Hole, the inner sliding sleeve below upper strip through-hole the most circumferentially has the radial direction through hole of two circles, the radial direction of each circle
The quantity of through hole is no less than two.
Flow-controllable sliding sleeve the most according to claim 1 and 2, it is characterised in that be fixed with epirelief inside the upper end of inner sliding sleeve
Platform.
Flow-controllable sliding sleeve the most according to claim 3, it is characterised in that be fixed with convex platform inside the upper end of inner sliding sleeve.
Flow-controllable sliding sleeve the most according to claim 4, it is characterised in that be fixed with convex platform inside the upper end of inner sliding sleeve.
Flow-controllable sliding sleeve the most according to claim 5, it is characterised in that be fixed with convex platform inside the upper end of inner sliding sleeve.
Flow-controllable sliding sleeve the most according to claim 1 and 2, it is characterised in that the lower outside of top connection connects with double mothers
Head top is threadably secured and is installed together, and the bottom of double female joints and the upper outside of lower contact are threadably secured installation
Together, between the upper outside and double female joint of top connection, auxiliary seal ring and secondary baffle, auxiliary gear it are installed with
Circle is positioned at the outside of auxiliary seal ring, is installed with auxiliary close between the bottom and the upper outside of lower contact of double female joints
Seal and secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring.
11. flow-controllable sliding sleeves according to claim 3, it is characterised in that on the lower outside of top connection and double female joints
Portion is threadably secured and is installed together, and the bottom of double female joints and the upper outside of lower contact are threadably secured and are arranged on one
Rise, between the upper outside and double female joint of top connection, be installed with auxiliary seal ring and secondary baffle, secondary baffle position
In the outside of auxiliary seal ring, between the bottom and the upper outside of lower contact of double female joints, it is installed with auxiliary seal ring
And secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring.
12. flow-controllable sliding sleeves according to claim 4, it is characterised in that on the lower outside of top connection and double female joints
Portion is threadably secured and is installed together, and the bottom of double female joints and the upper outside of lower contact are threadably secured and are arranged on one
Rise, between the upper outside and double female joint of top connection, be installed with auxiliary seal ring and secondary baffle, secondary baffle position
In the outside of auxiliary seal ring, between the bottom and the upper outside of lower contact of double female joints, it is installed with auxiliary seal ring
And secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring.
13. flow-controllable sliding sleeves according to claim 5, it is characterised in that on the lower outside of top connection and double female joints
Portion is threadably secured and is installed together, and the bottom of double female joints and the upper outside of lower contact are threadably secured and are arranged on one
Rise, between the upper outside and double female joint of top connection, be installed with auxiliary seal ring and secondary baffle, secondary baffle position
In the outside of auxiliary seal ring, between the bottom and the upper outside of lower contact of double female joints, it is installed with auxiliary seal ring
And secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring.
14. flow-controllable sliding sleeves according to claim 6, it is characterised in that on the lower outside of top connection and double female joints
Portion is threadably secured and is installed together, and the bottom of double female joints and the upper outside of lower contact are threadably secured and are arranged on one
Rise, between the upper outside and double female joint of top connection, be installed with auxiliary seal ring and secondary baffle, secondary baffle position
In the outside of auxiliary seal ring, between the bottom and the upper outside of lower contact of double female joints, it is installed with auxiliary seal ring
And secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring.
15. flow-controllable sliding sleeves according to claim 7, it is characterised in that on the lower outside of top connection and double female joints
Portion is threadably secured and is installed together, and the bottom of double female joints and the upper outside of lower contact are threadably secured and are arranged on one
Rise, between the upper outside and double female joint of top connection, be installed with auxiliary seal ring and secondary baffle, secondary baffle position
In the outside of auxiliary seal ring, between the bottom and the upper outside of lower contact of double female joints, it is installed with auxiliary seal ring
And secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring.
16. flow-controllable sliding sleeves according to claim 8, it is characterised in that on the lower outside of top connection and double female joints
Portion is threadably secured and is installed together, and the bottom of double female joints and the upper outside of lower contact are threadably secured and are arranged on one
Rise, between the upper outside and double female joint of top connection, be installed with auxiliary seal ring and secondary baffle, secondary baffle position
In the outside of auxiliary seal ring, between the bottom and the upper outside of lower contact of double female joints, it is installed with auxiliary seal ring
And secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring.
17. flow-controllable sliding sleeves according to claim 9, it is characterised in that on the lower outside of top connection and double female joints
Portion is threadably secured and is installed together, and the bottom of double female joints and the upper outside of lower contact are threadably secured and are arranged on one
Rise, between the upper outside and double female joint of top connection, be installed with auxiliary seal ring and secondary baffle, secondary baffle position
In the outside of auxiliary seal ring, between the bottom and the upper outside of lower contact of double female joints, it is installed with auxiliary seal ring
And secondary baffle, secondary baffle is positioned at the outside of auxiliary seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046491.3A CN103806867B (en) | 2014-02-10 | 2014-02-10 | Flow-controllable sliding sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410046491.3A CN103806867B (en) | 2014-02-10 | 2014-02-10 | Flow-controllable sliding sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103806867A CN103806867A (en) | 2014-05-21 |
| CN103806867B true CN103806867B (en) | 2017-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410046491.3A Active CN103806867B (en) | 2014-02-10 | 2014-02-10 | Flow-controllable sliding sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103806867B (en) |
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| CA2249128A1 (en) * | 1998-10-01 | 2000-04-01 | Stellarton Energy Corporation | Fluid injection tubing assembly and method |
| US6253853B1 (en) * | 1998-10-05 | 2001-07-03 | Stellarton Energy Corporation | Fluid injection tubing assembly and method |
| CN202000962U (en) * | 2010-12-17 | 2011-10-05 | 中国石油集团长城钻探工程有限公司 | Control sliding sleeve switch for segmented exploitation of oil and gas well |
| CN202596667U (en) * | 2012-05-03 | 2012-12-12 | 中国石油集团西部钻探工程有限公司 | Bypass type oil pipe floating valve |
| CN203050662U (en) * | 2012-11-26 | 2013-07-10 | 东营市兆鑫工贸有限责任公司 | Hydraulic sliding sleeve switch |
| CN202946131U (en) * | 2012-12-07 | 2013-05-22 | 中国石油集团西部钻探工程有限公司 | Pawl spring clamping buckle type self-locking pressing crack sliding sleeve |
| CN203742551U (en) * | 2014-02-10 | 2014-07-30 | 中国石油集团西部钻探工程有限公司 | Sliding sleeve with flow control function |
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|---|---|
| CN103806867A (en) | 2014-05-21 |
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