CN105201463B - Fluid control device - Google Patents
Fluid control device Download PDFInfo
- Publication number
- CN105201463B CN105201463B CN201410258641.7A CN201410258641A CN105201463B CN 105201463 B CN105201463 B CN 105201463B CN 201410258641 A CN201410258641 A CN 201410258641A CN 105201463 B CN105201463 B CN 105201463B
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- China
- Prior art keywords
- sliding sleeve
- control device
- outer barrel
- fluid control
- annular seal
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Abstract
The present invention relates to a kind of fluid control device, including：Be socketed each other and form the outer barrel and inner cylinder of axial cavity, wherein inner cylinder includes cylinder portion and elastic neckband and clamping positioning convex, wherein outer barrel perisporium and inner cylinder cylinder portion perisporium on be respectively equipped with opening and sets of vias；The sealed driven sliding sleeve being inserted in axial cavity, driven sliding sleeve include multiple snap positioning slots for being used to accommodate clamping positioning convex；Driven the actuating mechanism to be slidably reciprocated on axial direction is slided over for actuating.Wherein, driven sliding sleeve is constructed to be permeable to drive each clamping positioning convex to change the snap positioning slot where it under the actuating of actuating mechanism so that the part or all of through hole in opening on and off sets of vias.Its throttle degree can accurately be adjusted according to the control valve for fluids of the present invention.
Description
Technical field
The present invention relates to completion technique field, more particularly to a kind of fluid control device.
Background technology
In oil recovery process, fluid control device is typically used in horizontal well, more productive series wells or multilateral well, is led to
The fixed tubular column crossed at the ground is controlled the fluid control device of diverse location in real time, to complete to each interval or
Each branch's well yield is reasonably distributed, and the balanced production discharge opeing of holostrome section is realized, so as to improve ultimate recovery.Except this it
Outside, fluid control device can be used cooperatively with packer, and the segmentation or branch for realizing segment level well or multilateral well are closed
Adopt, overcome the uncertainty of reservoir modeling and the unfavorable problems such as water blockoff difficulty is big.
At present, existing fluid control device is mainly by central tube, the sliding sleeve and hydraulic mechanism that are socketed in outside central tube
Composition.Hydraulic mechanism actively sliding sleeve is controlled by the liquid supplying device on ground, promotes the through hole of sliding sleeve gradually to open wide central tube
Through hole so that the radially inner and outer conducting of the valve.In the course of the work, liquid supplying device can be conveyed to fluid hydraulic mechanism simultaneously
Its operation is controlled, so as to change the registration of the through hole of the through hole of sliding sleeve and main body, and then adjusts the throttle degree of the valve.But
It is, because fluid control device is typically used in the deeper position in underground, such as below 2000m.Therefore, liquid supplying device is difficult essence
The Fluid Volume really being adjusted into hydraulic mechanism so that hydraulic mechanism can not be accurately controlled the operation of sliding sleeve, so as to nothing
Method accurately changes the registration of the through hole of sliding sleeve and the through hole of main body, also just can not precisely adjust the throttle degree of the valve.
The content of the invention
In order to solve above-mentioned all or part of technical problem, it is an object of the invention to provide a kind of control valve for fluids, its energy
It is enough accurately to adjust its throttle degree.
The invention provides a kind of fluid control device, and it includes：It is socketed each other and forms the outer barrel and inner cylinder of axial cavity,
Wherein inner cylinder includes cylinder portion and multiple elastic neckbands extended from cylinder portion towards updrift side, and is arranged on each elastic neckband
The clamping positioning convex of free end, outer barrel perisporium and inner cylinder cylinder portion perisporium on be respectively equipped with opening and sets of vias,
Opening and sets of vias are connected with axial cavity；The sealed driven sliding sleeve being inserted in axial cavity, driven sliding sleeve include setting
Multiple snap positioning slots that are on inwall and being spaced apart from each other vertically, each snap positioning slot are used to accommodate whole clampings
Positioning convex；Driven the actuating mechanism to be slidably reciprocated on axial direction is slided over for actuating.Wherein, driven sliding sleeve is constructed to be permeable to
Each clamping positioning convex is driven to change the snap positioning slot where it under the actuating of actuating mechanism so that opening on and off
Part or all of through hole in sets of vias.
In one embodiment, sets of vias is made up of multiple hole rows circumferentially separated from one another, and each hole row is by vertically
The through hole composition being spaced apart from each other.
In one embodiment, the spacing in the row of each hole between the adjacent through hole of any two is identical, each clamping positioning
Groove is equidistantly spaced from each other vertically, between wherein the spacing between adjacent through-holes is equal between adjacent snap positioning slot
Away from.
In one embodiment, the axial dimension of each elastic neckband is identical so that the axial direction where each clamping positioning convex
Position is identical.
In one embodiment, each snap positioning slot is circumferential recess.
In one embodiment, the radial section of each snap positioning slot and clamping positioning convex is trapezoidal or semicircle.
In one embodiment, the axial distribution of sets of vias is not more than the axial dimension of axial cavity.
In one embodiment, actuating mechanism includes：It is inserted in outer barrel and positioned at the cylinder barrel of the upstream of inner cylinder；It is located at cylinder
Annular seal space between cylinder and outer barrel, it is logical that first and second to be connected respectively with the both ends of annular seal space are provided with the perisporium of outer barrel
Road；The actively sliding sleeve being located in annular seal space, driving member is provided between actively sliding sleeve and driven sliding sleeve.
In one embodiment, outer barrel includes outer barrel body, and is located on outer barrel body and is used in the downstream of annular seal space
Place limits the sealing shroud of annular seal space, and driving member is sealed between sealing shroud and cylinder barrel to be passed through and be fixed on driven sliding sleeve.
In one embodiment, second channel construction is connected in sealing shroud and with annular seal space.
In this application, the axial and circumferential outer barrel or inner cylinder are relative in the case of no specified otherwise and
Speech.
Can be effective by way of clamping positioning convex changes snap positioning slot according to the fluid control device of the present invention
Driven sliding sleeve is accurately positioned, it is possible thereby to the conducting quantity of sets of vias inner via hole is accurately controlled, so as to which accurately regulation is flowed
The throttle degree of member control apparatus.Meanwhile actuating mechanism can be allowed not after the cooperation of clamping positioning convex and snap positioning slot
With persistently with pressure, consequently facilitating improving the service life of the device.In addition, can be real according to the fluid control device of the present invention
Now cutout can be realized and accurately throttled again so that it can effectively regulate and control oil-producing intensity.In addition, the fluid according to the present invention
Control device employs the control of fluid pressure type, realizes operation force greatly and reliability is high, so as to overcome draining or control water completion
When to the dependence of reservoir modeling and the uncertainty of water blockoff, in real time and the mining rate of each interval can be optimized, realize balanced row
Liquid, oil recovery is significantly increased.
It is easy to process according to the simple and compact for structure of the fluid control device of the present invention, it is safe to use efficient, it is convenient to carry out
Popularization and application.
Brief description of the drawings
The invention will be described in more detail below based on embodiments and refering to the accompanying drawings.Wherein：
Fig. 1 shows the fluid control device according to the present invention；And
Fig. 2 shows the driven sliding sleeve of the fluid control device according to the present invention.
In the accompanying drawings, identical part uses identical reference.Accompanying drawing is not drawn according to the ratio of reality.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 shows the fluid control device 10 according to the present invention, and it is mainly used in the production to each interval or each Multilateral Wells
Amount is reasonably distributed, and the balanced production discharge opeing of holostrome section is realized, so as to improve ultimate recovery.In Fig. 1, U represents upstream
Direction, D represent downstream direction.Upstream and downstream direction explanation merely for convenience, and it is not used to limit the side of actual installation
To.
According to the present invention, the fluid control device 10 includes being socketed each other and forming the outer barrel 1 of the axial cavity 3 of general toroidal
With inner cylinder 2.The first joint 13 and the second joint 14 are provided with the both ends fixable type of outer barrel 1, it can for example pass through helicitic texture
It is fixed on outer barrel 1.The fluid control device 10 can be connected to tubing string by the first joint 13 and the second joint 14 by helicitic texture
In.Outer barrel 1 includes being opened in the opening 12 for being used to connect axial cavity 3 on perisporium.What opening 12 was preferably axially distributed
Waist-shaped hole.The quantity of opening 12 may be selected multiple, and it is circumferentially spaced apart from each other.Axial cavity 3 is preferably annular chamber, and its is excellent
Choosing is identical with the axial dimension of waist-shaped hole.
As illustrated in fig. 1 and 2, inner cylinder 2 includes cylinder portion 2a and multiple elastic neckbands extended from cylinder portion 2a towards updrift side U
2b, and it is arranged on the clamping positioning convex 2c of each elastic neckband 2b free end.Wherein, each elastic neckband 2b axial dimension
It is identical so that the axial location where each clamping positioning convex 2c is identical.Clamping positioning convex 2c is from each elastic neckband 2b
The projection extended radially outward on free end, it is trapezoidal or semicircular projection that it, which may be configured to radial section, is so easy to
It slides in or out.Inner cylinder 2 can be made up of elastomeric material, such as spring steel, to enable elastic neckband 2b flexible.
The sets of vias for being used for connecting axial cavity 3 is provided with cylinder portion 2a perisporium.
The fluid control device 10 also includes the driven sliding sleeve 5 in sealed insertion axial cavity 3.Driven sliding sleeve 5 includes setting
Multiple snap positioning slot 5a that are on inwall and being spaced apart from each other vertically.Each snap positioning slot 5a may be configured to circumferential recessed
Groove, to accommodate whole clamping positioning convex 2c.Driven sliding sleeve 5 can axially move in axial cavity 3 so that by inner cylinder
The entirety that 2 each elastic neckband 2b and corresponding clamping positioning convex 2c are formed can in the presence of snap positioning slot 5a to
Interior bending, so as to promote clamping positioning convex 2c to depart from now snap positioning slot 5a where it, determine to enter next clamping
In the groove 5a of position.
In addition, the fluid control device 10 also includes actuating mechanism 6.Actuating mechanism 6 can actuate driven sliding sleeve 5 vertically
It is mobile, and drive each clamping positioning convex 2c to change the snap positioning slot 5a where it so that the on and off of opening 12 is led to
Part or all of through hole 4 in the group of hole., can be effectively accurate by way of clamping positioning convex 2c changes snap positioning slot 5a
Ground positions driven sliding sleeve 5, it is possible thereby to the conducting quantity of sets of vias inner via hole is accurately controlled, so as to accurately adjust fluid control
The throttle degree of device 10 processed.In addition, clamping positioning convex 2c and snap positioning slot 5a location fit, can allow to promote
Motivation structure 6 is with pressure without continuing, consequently facilitating improving the service life of the fluid control device 10.
In this embodiment, sets of vias is made up of multiple holes rows circumferentially separated from one another, each hole row by vertically that
This through hole 4 spaced apart forms.The through hole 4 of this distribution form is advantageous to the accurate selection of driven sliding sleeve 5, consequently facilitating precisely
Ground controls throttle degree.In order that whole through holes 4 can play a role, the axial distribution of sets of vias should be not more than axial cavity
3 axial dimension.The big I of through hole 4 in sets of vias carries out respective design according to specific needs, and this design belongs to ability
Known to field technique personnel, no further details to be given herein.
In a preferred embodiment, the spacing in the row of each hole between the adjacent through hole 4 of any two is identical, and each
Snap positioning slot 5a is equidistantly spaced from each other vertically.Wherein, the spacing between adjacent through-holes 4 positions equal to adjacent clamping
Spacing between groove 5a.The conducting of the accurate selection sets of vias inner via hole 4 of driven sliding sleeve 2 can more be facilitated in this way
Quantity.
In this embodiment, actuating mechanism 6 includes being inserted in outer barrel 1 and positioned at the cylinder barrel 601 of the upstream of inner cylinder 2.Cylinder
The upstream end of cylinder 601 is for example fixed on the inwall of outer barrel 1 by helicitic texture so that cylinder barrel 601 phase can not occur with outer barrel 1
To axial movement.In addition, actuating mechanism 6 also includes the annular seal space 602 formed between cylinder barrel 601 and outer barrel 1, and it is located at
Actively sliding sleeve 603 in the annular seal space 602.Annular seal space 602 can be axially distributed annular chamber.In order to promote actively sliding sleeve
603 are slidably reciprocated in the annular seal space 602, and two passages can be provided with the perisporium of outer barrel 1, are respectively and the annular seal space 602
The both ends first passage 604 and second channel 605 that are connected.Thus, entered by first passage 604 and second channel 605
Fluid in annular seal space 602, it can effectively actuate actively sliding sleeve 603 and be slidably reciprocated in the annular seal space 602.
According to the present invention, driving member 7 is provided between actively sliding sleeve 603 and driven sliding sleeve 5.Driving member 7 may be configured to thin
In the body of actively sliding sleeve 603, as shown in Figure 1.In addition, driving member 7 also may be configured to more it is circumferentially spaced
Bar shape.Driving member 7 can use the manufacture of integral type with actively sliding sleeve 603.
In a preferred embodiment, fluid control device 10 may also include for detect actively sliding sleeve 603 and/or from
The displacement transducer of the displacement of dynamic sliding sleeve 5, thus easily facilitate realization and accurately control.Wherein, described displacement transducer category
In well known to those skilled in the art, no further details to be given herein.
In addition to the actuating mechanism 6 selected by the present embodiment, those skilled in the art also can be according to other well known rush
Motivation structure replaces the actuating mechanism 6.But the actuating mechanism 6 selected by the present embodiment has simple in construction, easy to process, peace
Dressing is easy, it is compact-sized the advantages that.
For the sake of easy to loading and unloading, outer barrel 1 may be configured to split-type structural, i.e., it includes outer barrel body 1a, and is located at
Sealing shroud 1b on outer barrel body 1a.Sealing shroud 1b is used to limit annular seal space 602 at the downstream of annular seal space 602.Driving member 7
Actively sliding sleeve 603 is fixed in one end, and the other end is sealed between sealing shroud 1b and cylinder barrel 601 passes through and be fixed on driven cunning
Set 5 so that driven sliding sleeve 5 can follow actively sliding sleeve 603 to move.Wherein, second channel 605 construct in sealing shroud 1b and from
Downstream end is connected with annular seal space 602.
According to the fluid control device 10 of the present invention, by way of clamping positioning convex 2c changes snap positioning slot 5a,
Driven sliding sleeve 5 effectively can be accurately positioned, it is possible thereby to the conducting quantity of sets of vias inner via hole is accurately controlled, so as to precisely
Ground adjusts the throttle degree of fluid control device 10.In addition, clamping positioning convex 2c and snap positioning slot 5a positioning are matched somebody with somebody
Close, actuating mechanism 6 can be allowed not have to lasting with pressure, consequently facilitating improving the service life of the fluid control device 10.
Although by reference to preferred embodiment, invention has been described, is not departing from the situation of the scope of the present invention
Under, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as being rushed in the absence of structure
Prominent, the every technical characteristic being previously mentioned in each embodiment can combine in any way.The invention is not limited in text
Disclosed in specific embodiment, but all technical schemes including falling within the scope of the appended claims.
Claims (18)
1. a kind of fluid control device, including：
It is socketed each other and forms the outer barrel and inner cylinder of axial cavity, wherein the inner cylinder includes cylinder portion and multiple courts from cartridge
The elastic neckband of updrift side extension, and the clamping positioning convex of the free end of each elastic neckband is arranged on, wherein
Opening and sets of vias are respectively equipped with the perisporium of the outer barrel and the perisporium in the cylinder portion of inner cylinder, the opening and sets of vias are equal
It is connected with the axial cavity；
The sealed driven sliding sleeve being inserted in the axial cavity, the driven sliding sleeve include be located at it is on inwall and vertically that
This multiple snap positioning slot spaced apart, each snap positioning slot are used to accommodate whole clamping positioning convex；
Described driven the actuating mechanism to be slidably reciprocated on axial direction is slided over for actuating；
Wherein, the driven sliding sleeve is constructed to be permeable to drive each clamping positioning convex more under the actuating of the actuating mechanism
The snap positioning slot changed where it so that partly or entirely logical in sets of vias described in the opening on and off
Hole.
2. fluid control device according to claim 1, it is characterised in that the sets of vias by it is multiple circumferentially to each other
The hole row's composition separated, each hole row are made up of the through hole being spaced apart from each other vertically.
3. fluid control device according to claim 2, it is characterised in that any two is adjacent in each hole row
Spacing between the through hole is identical, and each snap positioning slot is equidistantly spaced from each other vertically, wherein adjacent described
Spacing between through hole is equal to the spacing between the adjacent snap positioning slot.
4. fluid control device according to claim 3, it is characterised in that the axial dimension phase of each elastic neckband
Together so that the axial location where each clamping positioning convex is identical.
5. the fluid control device according to any one of claim 1 to 4, it is characterised in that each snap positioning slot
It is circumferential recess.
6. fluid control device according to claim 5, it is characterised in that each snap positioning slot and clamping convex
The radial section risen is trapezoidal or semicircle.
7. fluid control device according to claim 5, it is characterised in that the axial distribution of the sets of vias is little
In the axial dimension of the axial cavity.
8. fluid control device according to claim 5, it is characterised in that the actuating mechanism includes：It is inserted in described
In outer barrel and positioned at the cylinder barrel of the upstream of the inner cylinder；The annular seal space being located between the cylinder barrel and outer barrel, in the outer barrel
Perisporium is provided with the first and second passages being connected respectively with the both ends of the annular seal space；The active being located in the annular seal space
Sliding sleeve, driving member is provided between the actively sliding sleeve and driven sliding sleeve.
9. the fluid control device according to any one of claim 1 to 4, it is characterised in that each snap positioning slot
Radial section with clamping positioning convex is trapezoidal or semicircle.
10. fluid control device according to claim 9, it is characterised in that the axial distribution of the sets of vias is not
More than the axial dimension of the axial cavity.
11. fluid control device according to claim 9, it is characterised in that the actuating mechanism includes：It is inserted in described
In outer barrel and positioned at the cylinder barrel of the upstream of the inner cylinder；The annular seal space being located between the cylinder barrel and outer barrel, in the outer barrel
Perisporium is provided with the first and second passages being connected respectively with the both ends of the annular seal space；The active being located in the annular seal space
Sliding sleeve, driving member is provided between the actively sliding sleeve and driven sliding sleeve.
12. according to the fluid control device any one of claim 1 to 4 or 6, it is characterised in that the sets of vias
Axial distribution is not more than the axial dimension of the axial cavity.
13. fluid control device according to claim 12, it is characterised in that the actuating mechanism includes：It is inserted in institute
State in outer barrel and positioned at the cylinder barrel of the upstream of the inner cylinder；The annular seal space being located between the cylinder barrel and outer barrel, in the outer barrel
Perisporium be provided with the first and second passages for being connected respectively with the both ends of the annular seal space；The master being located in the annular seal space
Dynamic sliding sleeve, is provided with driving member between the actively sliding sleeve and driven sliding sleeve.
14. according to claim 1 to 4, the fluid control device any one of 6,7 or 10, it is characterised in that described to actuate
Mechanism includes：It is inserted in the outer barrel and positioned at the cylinder barrel of the upstream of the inner cylinder；It is located between the cylinder barrel and outer barrel
Annular seal space, the first and second passages being connected respectively with the both ends of the annular seal space are provided with the perisporium of the outer barrel；If
Actively sliding sleeve in the annular seal space, driving member is provided between the actively sliding sleeve and driven sliding sleeve.
15. fluid control device according to claim 14, it is characterised in that the outer barrel includes outer barrel body, and
Be located at the sealing shroud for being used at the downstream of the annular seal space limiting the annular seal space on the outer barrel body, the driving member from
It is sealed between the sealing shroud and cylinder barrel to pass through and be fixed on the driven sliding sleeve.
16. the fluid control device according to any one of claim 8,11 or 13, it is characterised in that the outer barrel includes
Outer barrel body, and it is located at the sealing for being used at the downstream of the annular seal space limiting the annular seal space on the outer barrel body
Set, the driving member pass through from sealed between the sealing shroud and cylinder barrel and are fixed on the driven sliding sleeve.
17. fluid control device according to claim 15, it is characterised in that the second channel construction is in the sealing
It is connected in set and with the annular seal space.
18. fluid control device according to claim 16, it is characterised in that the second channel construction is in the sealing
It is connected in set and with the annular seal space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258641.7A CN105201463B (en) | 2014-06-11 | 2014-06-11 | Fluid control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410258641.7A CN105201463B (en) | 2014-06-11 | 2014-06-11 | Fluid control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105201463A CN105201463A (en) | 2015-12-30 |
| CN105201463B true CN105201463B (en) | 2017-12-26 |
Family
ID=54949376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410258641.7A Active CN105201463B (en) | 2014-06-11 | 2014-06-11 | Fluid control device |
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| Country | Link |
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| CN (1) | CN105201463B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593350A (en) * | 2016-12-13 | 2017-04-26 | 中国石油天然气股份有限公司 | Wireless control casing pipe sliding sleeve based on electromagnetic wave bidirectional communication |
| CN112610185B (en) * | 2020-12-16 | 2023-01-20 | 中国石油大学(华东) | Underground multi-stage flow control system, method and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510248A (en) * | 2002-12-23 | 2004-07-07 | 北京海能海特石油科技发展有限公司 | Sieve tube with flow adjuster |
| CN201358771Y (en) * | 2009-02-27 | 2009-12-09 | 张瑾 | Restrictor capable of adjusting opening pressure of sliding sleeve |
| WO2012037645A1 (en) * | 2010-09-22 | 2012-03-29 | Packers Plus Energy Services Inc. | Wellbore frac tool with inflow control |
| CN202970659U (en) * | 2012-11-05 | 2013-06-05 | 成都市中油石油钻采物资有限公司 | Throttling pressure difference sliding bush mechanism |
-
2014
- 2014-06-11 CN CN201410258641.7A patent/CN105201463B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510248A (en) * | 2002-12-23 | 2004-07-07 | 北京海能海特石油科技发展有限公司 | Sieve tube with flow adjuster |
| CN201358771Y (en) * | 2009-02-27 | 2009-12-09 | 张瑾 | Restrictor capable of adjusting opening pressure of sliding sleeve |
| WO2012037645A1 (en) * | 2010-09-22 | 2012-03-29 | Packers Plus Energy Services Inc. | Wellbore frac tool with inflow control |
| CA2810412A1 (en) * | 2010-09-22 | 2012-03-29 | Packers Plus Energy Services Inc. | Wellbore frac tool with inflow control |
| CN202970659U (en) * | 2012-11-05 | 2013-06-05 | 成都市中油石油钻采物资有限公司 | Throttling pressure difference sliding bush mechanism |
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| Publication number | Publication date |
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| CN105201463A (en) | 2015-12-30 |
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