CN104859809B - Self-closed type packer - Google Patents
Self-closed type packer Download PDFInfo
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- CN104859809B CN104859809B CN201510065909.XA CN201510065909A CN104859809B CN 104859809 B CN104859809 B CN 104859809B CN 201510065909 A CN201510065909 A CN 201510065909A CN 104859809 B CN104859809 B CN 104859809B
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- sleeve
- rubber sleeve
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- closed type
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Abstract
The invention discloses a kind of self-closed type packer, it is applied to the sealing of the annular gap of stake and sleeve in offshore drilling platform, it is arranged between sleeve and stake, and it is critical only that：Including coaxial with sleeve and the side bottom that sets within it rubber sleeve, rubber sleeve bottom is connected with sleeve seal by base fixture and gap and between rubber sleeve and sleeve forms cement mortar containing cavity, top by top fixture and sleeve connection and is provided with grouting mouth.The invention has the beneficial effects as follows：Only rubber sleeve and corresponding fixing device realize automatic airtight, and structure is simple, easy to manufacture, low cost；The safety coefficient with active packer is high, passive type packer install simple it is not necessary to the advantages of pipeline and dynamical system.
Description
Technical field
The invention belongs to packer technology field used by marine fixed platform, specially a kind of self-closed type packer.
Background technology
Referring to accompanying drawing 8, marine fixed platform is usually by chunk 15 and to be located at chunk 15 bottom and major part is in water
Catheterostat 17 below 16 for the line face forms.The fixation in catheterostat 17 and seabed 19 is generally by being placed in the main lower limb bottom of catheterostat 17
The sleeve 1 in portion with through sleeve 1 and squeeze into what being fixedly connected the piling bar 18 in seabed 19 to complete.And sleeve 1 internal diameter and
Fixation between stake 18 external diameters is to be reached by the form of cement grout.
The marine major function with packer under water is when piling finishes post-grouting, blocks annular sleeve in sleeve 1 bottom
Space between cylinder 1 inner side and stake 18 external diameter, prevents cement mortar from flowing out.For weak soil sea bed, need packer itself or supporting
Device be used for preventing the mud in seabed from entering the annular space between stake 18 external diameter and sleeve 1 it is ensured that cement mortar is not contaminated.
At present, marine packer under water is divided into active packer and passive type packer by type of work.Actively
Formula packer mainly has a kind of product-air heave type packer, and referring to accompanying drawing 9, the advantage of air heave type packer is：Beating post process
The inner surface of middle air heave type packer is not contacted with the outer surface of post；It is not subject to cement mortar weight（Grouting height）Limit with the depth of water
System；Can allow for the adverse movement of stake 18（When catheterostat 17 carries out leveling operation）Eccentric with the appropriateness of stake 18；Can stand
The impact load of the stake 18 that vibration during piling and stake 18 are caused due to marine loop wheel machine catenary motion during lower stake.Shortcoming
It is system complex, need to be equipped with power station, hydraulic line, ROV（Underwater robot）Emergent interface.Once pipeline damages needing
ROV connects flexible pipe under water；Greatly and costly, offshore operations are complicated for land installation and debugging workload；There is the handware consumption of residual
Anode, presence harm diver's underwater operation of pipeline；Cost is high（Generally several times to be exceeded than passive type packer price）.
Passive type packer predominantly organic tool formula packer and Crux packer（Referring to accompanying drawing 10）.Passive type packer
Advantage is：Do not need pipeline, dynamical system, valve is installed and ROV back-up system under water；Do not need land debugging and marine behaviour
Make, simultaneously work as stopping the effect that mud enters annular space（The effect of isolator）；There is no the handware consumable anode remaining,
Be safe from harm the various pipelines of diver's underwater operation and valve；Low price.Shortcoming mainly has：The application depth of water is restricted（Special
It is not mechanical packer）；Stake 18 hurtles down it is possible to causing packer to destroy, losing efficacy.
For the foregoing reasons it is necessary to design one kind packer under water, have active packer and passive type packer concurrently
Advantage, and reach that structure is simple, the purpose of good sealing effect, low cost.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of self-closed type packer, directly arranges rubber in the inner side of sleeve
Packing element, in the empty containing cavity between rubber tube and sleeve during grout injection, makes because the proportion of cement mortar is heavier than the seawater
Rubber tube bottom extended is simultaneously expanded to stake side, and also the annular backing board being disposed by bottom is limited and makees thus playing sealing
With.
For solving above-mentioned technical problem, the technical solution used in the present invention is：A kind of self-closed type packer, positioned at sleeve
And stake between, it is critical only that：Including coaxial with sleeve and the side bottom that sets within it rubber sleeve, rubber sleeve bottom is the bottom of by
Portion's fixing device is connected with sleeve seal and the gap and between rubber sleeve and sleeve forms cement mortar containing cavity, top by top
Fixing device with sleeve connection and is provided with grouting mouth.
In technique scheme：The bottom of rubber sleeve to sleeve bending or radially prominent to sleeve, bending part or prominent
Go out portion to fix with sleeve seal by base fixture；It is provided with connection strap at the top of rubber sleeve, described connection strap is along rubber
The circumference of set is uniformly arranged at least 4 groups, and described connection strap is fixed on formation rubber sleeve top inside sleeve by top fixture
Portion and the attachment structure of sleeve；Multigroup endless belt framework material band is set axially outside in rubber sleeve, described skeleton is height
Molecule or metallic framework；The internal diameter of rubber sleeve interlude is less than the diameter of stake, and rubber sleeve inside circumference is provided with reduction friction
The polymeric coating layer of coefficient；It is provided with the annular backing board being fixed on sleeve in the bottom lower end of described rubber sleeve.
The design principle of the present invention is when the perfusion in cement mortar containing cavity using the change of cement mortar containing cavity inside and outside differential pressure
During cement mortar, when pressure in cement mortar containing cavity（Increase with the height of concrete column）During more than external water pressure, rubber tube
Laterally expand with bottom from trend, until the annular gap between stake and sleeve is sealed.Increase with this pressure differential（Cement
The increase of the height of post）, the annular gap sealing effectiveness between sleeve can be further improved.
The invention has the beneficial effects as follows：Realize automatic-sealed with rubber sleeve and corresponding fixing device, and sealability
Become big with the increase pouring into cement mortar pillar height degree；It can be directly installed on piling bar sheath, can save steel；Structure
Design has taken into full account the use environment of packer, has the advantages that the safety coefficient of active packer is high；Erector simultaneously
Sequence simple it is not necessary to pipeline and dynamical system are it is not necessary to the advantages of install post debugging operation.
The present invention is described in detail below in conjunction with the accompanying drawings.
Brief description
Fig. 1 is the schematic perspective view of the present invention；
Fig. 2 is the structural representation of the embodiment of the present invention one；
Fig. 3 is the structural representation of base fixture in Fig. 2；
Fig. 4 is another structural representation of base fixture in Fig. 2；
Fig. 5 is the structural representation of the embodiment of the present invention two；
Fig. 6 is the structural representation of base fixture in Fig. 5；
Fig. 7 is the structural representation of top fixture in the present invention；
Fig. 8 is the structural representation of marine fixed platform；
Fig. 9 is the structural representation of air heave type packer；
Figure 10 is the structural representation of Crux packer.
In the accompanying drawings：1 is sleeve, and 2 is rubber sleeve, and 3 is grouting mouth, and 4 is pressing plate, and 5 is connecting bolt, and 6 is connection strap, 7
It is gap block, 8 is briquetting, 9 is hold-down bolt, 10 is grouting channel, 11 is annular backing board, and 12 is pressure strip, 13 is to connect
Plate, 14 is bending bar, and 15 is chunk, and 16 is Water Plane, and 17 is catheterostat, and 18 is stake, and 19 is seabed.
Specific embodiment
Embodiment one：Referring to accompanying drawing 1, a kind of self-closed type packer, between sleeve 1 and stake 18, it is critical only that：
Including coaxial with sleeve 1 and the side bottom that sets within it rubber sleeve 2, rubber sleeve 2 bottom is by base fixture and sleeve 1
It is tightly connected and the gap and between rubber sleeve 2 and sleeve 1 forms cement mortar containing cavity, top by top fixture and sleeve
1 connects and is provided with grouting mouth 3.
Referring to accompanying drawing 2 and Fig. 3, to sleeve 1 bending, bending part is by base fixture and sleeve 1 for the bottom of rubber sleeve 2
Form sealing fixed structure.The bending part of rubber sleeve 2 forms the gap of rubber sleeve 2 and sleeve 1, and then it is accommodating to form cement mortar
Chamber.
The internal diameter of rubber sleeve 2 interlude is less than the diameter of stake 18, and rubber sleeve 2 inside circumference is provided with reduction coefficient of friction
Polymeric coating layer.This design makes the interlude of rubber sleeve 2 closely be attached to the outer surface of stake 18 so that during grout injection,
Cement mortar can fully flow in cement mortar containing cavity.And the setting of polymeric coating layer can by stake 18 drive piles work when to rubber
The abrasion of set 2 is reduced to minimum.
Referring to accompanying drawing 3, base fixture is to be located at the pressing plate 4 of rubber sleeve 2 bottom inside and run through pressing plate 4 and rubber sleeve
2 bending part the connecting bolt 5 being connected with sleeve 1.
Referring to accompanying drawing 4, base fixture can also be including the connecting plate 13 being arranged on sleeve 1 bottom inside, is located at
In the pressing plate 4 of rubber sleeve 2 bottom inside and run through the bending part of pressing plate 4 and rubber sleeve 2 the connection spiral shell being connected with connecting plate 13
Bolt 5.
Further, base fixture can also be including the reeded connection of band being arranged on sleeve 1 bottom inside
Plate 13, be located at rubber sleeve 2 bottom inside pressing plate 4 and run through pressing plate 4 and rubber sleeve 2 bending part and with connecting plate 13 further groove
In screwed hole connect connecting bolt 5.Pressing plate 4 is L-shaped, and its bending part extends to sleeve 1 and is located at below connecting plate 13,
The inner side of sleeve 1 is provided with the bending bar 14 forming labyrinth type compressing structure with bending part.The bottom than Fig. 3 for such design is fixed
The stability of device more preferably, forms second layer sealing structure.
The present invention is in the specific implementation：When piling finishes post-grouting, in the annular gap with stake for the sleeve 1, inject cement
Slurry, cement mortar enters cement mortar containing cavity from grouting mouth 3 and grouting channel 10.Pressure in cement mortar containing cavity is more than outside
Pressure when, rubber sleeve 2 expands outwardly, be automatically obtained sealing stake 18 and sleeve 1 between annular space purpose.
Embodiment two：Referring to accompanying drawing 5 and 6, from the bottom of rubber sleeve 2 unlike embodiment one radially to sleeve 1
Prominent, protuberance is fixed with sleeve 1 sealing by base fixture.The structure of fixing device with identical in embodiment one.
Referring to accompanying drawing 7, in above-described embodiment, it is provided with connection strap 6 at the top of rubber sleeve 2, described connection strap 6 is along rubber sleeve
2 circumference is uniformly arranged at least 4 groups, and described connection strap 6 is fixed on sleeve 1 inner side by top fixture and forms rubber sleeve 2
Top and the attachment structure of sleeve 1.Connection strap 6 can be it is also possible to be integrally fixed on rubber sleeve 2 with rubber sleeve 2 one.
Different from the fixed form of the bottom of rubber sleeve 2, connection strap 6 is to be pressed on sleeve 1.Connection strap 6 interval is fixed on sleeve 1
Gap block 7 both sides, described top fixture includes being located at briquetting 8, pressure strip 12 and the hold-down bolt 9 of sleeve 1 inner side,
Described hold-down bolt 9 runs through pressure strip 12 and briquetting 8 cooperatively forms connection strap and is fixed structure.Free end in connection strap 6
It is provided with protuberance, to prevent connection strap 6 from deviating from from top fixture.Grouting mouth 3 is that adjacent connection strap 6 is fixing with sleeve 1
Breach between the rubber sleeve 2 being formed and sleeve 1.
For ensureing the intensity of rubber sleeve 2, multigroup endless belt framework material band, bone are set axially outside in rubber sleeve 2
Frame is macromolecule or metallic framework.
For interfering with the edge of grouting mouth 3 when preventing stake 18 from declining, the edge of described grouting mouth 3 is hung down with sleeve 1
Straight distance and rubber sleeve 1 wall thickness sum are less than the thickness of gap block 7.
For preventing the bottom overdistension of rubber sleeve 2 and the mandatory bottom making rubber sleeve 2 to stake 18 surface spreading, in institute
The lower end stating rubber sleeve 2 is provided with the annular backing board 11 being fixed on sleeve 1.
Enter the speed of cement mortar containing cavity for strengthening cement mortar further, cement mortar is communicated with gap block 7 and holds
Put the grouting channel 10 in chamber.
Claims (15)
1. a kind of self-closed type packer, positioned at sleeve（1）And stake（18）Between it is characterised in that：Including with sleeve（1）Coaxially
And the rubber sleeve of the side bottom that sets within it（2）, rubber sleeve（2）Bottom is by base fixture and sleeve（1）It is tightly connected
And and rubber sleeve（2）With sleeve（1）Between gap form cement mortar containing cavity, top is by top fixture and sleeve（1）
Connect and be provided with grouting mouth（3）,
In rubber sleeve（2）Top be provided with connection strap（6）；Described connection strap（6）It is fixed on sleeve by top fixture（1）
Inner side forms rubber sleeve（2）Top and sleeve（1）Attachment structure.
2. self-closed type packer according to claim 1 it is characterised in that：Described rubber sleeve（2）Bottom to sleeve
（1）Bending, bending part is by base fixture and sleeve（1）Form sealing to fix.
3. self-closed type packer according to claim 1 it is characterised in that：Described rubber sleeve（2）Bottom along its footpath
To sleeve（1）Prominent, protuberance is by base fixture and sleeve（1）Form sealing to fix.
4. self-closed type packer according to claim 1 it is characterised in that：Described connection strap（6）Along rubber sleeve（2）'s
Circumference is uniformly arranged at least 4 groups.
5. self-closed type packer according to claim 4 it is characterised in that：Described connection strap（6）Interval is fixed on set
Cylinder（1）Gap block（7）The both sides of bottom, described top fixture includes being located at sleeve（1）The briquetting of inner side（8）, compression
Plate（12）And hold-down bolt（9）, described hold-down bolt（9）Run through pressure strip（12）With briquetting（8）Cooperatively form connection strap compression
Fixed structure.
6. self-closed type packer according to claim 4 it is characterised in that：Described in connection strap（6）Free end set
There is protuberance.
7. self-closed type packer according to claim 4 it is characterised in that：Described grouting mouth（3）It is adjacent connection strap
（6）With sleeve（1）The fixing rubber sleeve being formed（2）With sleeve（1）Between breach.
8. self-closed type packer according to claim 1 it is characterised in that：In rubber sleeve（2）Arrange axially outside
Multigroup endless belt framework material band, described skeleton is macromolecule or metallic framework.
9. self-closed type packer according to claim 1 it is characterised in that：Rubber sleeve（2）The internal diameter of interlude is less than
Stake（18）Diameter, in rubber sleeve（2）Inside circumference is provided with the polymeric coating layer reducing coefficient of friction.
10. self-closed type packer according to claim 1 it is characterised in that：Described grouting mouth（3）Edge and sleeve
（1）Vertical dimension and rubber sleeve（1）Wall thickness sum is less than gap block（7）Thickness.
11. self-closed type packers according to claim 1 it is characterised in that：In described rubber sleeve（2）Bottom bottom
It is provided with and be fixed on sleeve（1）On annular backing board（11）.
12. self-closed type packers according to any one of claim 1-11 it is characterised in that：Described base fixture
It is to be located at rubber sleeve（2）The pressing plate of bottom inside（4）And run through pressing plate（4）And rubber sleeve（2）And and sleeve（1）The connection connecting
Bolt（5）.
13. self-closed type packers according to any one of claim 1-11 it is characterised in that：Described base fixture
Including being arranged on sleeve（1）The connecting plate of bottom inside（13）, be located in rubber sleeve（2）The pressing plate of bottom inside（4）And run through
Pressing plate（4）And rubber sleeve（2）And and connecting plate（13）The connecting bolt connecting（5）.
14. self-closed type packers according to any one of claim 1-11 it is characterised in that：Described base fixture
Including being arranged on sleeve（1）The reeded connecting plate of band of bottom inside（13）, be located at rubber sleeve（2）The pressing plate of bottom inside
（4）And run through pressing plate（4）And rubber sleeve（2）And and connecting plate（13）The connecting bolt that screwed hole in groove connects（5）.
15. self-closed type packers according to claim 14 it is characterised in that：Described pressing plate（4）For L-shaped, its bending
Place is to sleeve（1）Extend and be located at connecting plate（13）Lower section, in sleeve（1）Inner side be provided with and bending part formed labyrinth type compression
The bending bar of sealing structure（14）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065909.XA CN104859809B (en) | 2015-02-09 | 2015-02-09 | Self-closed type packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065909.XA CN104859809B (en) | 2015-02-09 | 2015-02-09 | Self-closed type packer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104859809A CN104859809A (en) | 2015-08-26 |
| CN104859809B true CN104859809B (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510065909.XA Active CN104859809B (en) | 2015-02-09 | 2015-02-09 | Self-closed type packer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165149B (en) * | 2017-06-12 | 2019-04-09 | 衡橡科技股份有限公司 | A kind of installation method of packer |
| JP6963031B2 (en) * | 2017-06-13 | 2021-11-05 | 衡橡科技股▲フン▼有限公司 | Pile leading packer |
| CN107313427B (en) * | 2017-07-25 | 2019-04-09 | 衡橡科技股份有限公司 | A kind of improved packer and its manufacturing method |
| CN110093908B (en) * | 2019-06-06 | 2023-12-29 | 衡橡科技股份有限公司 | Tower packer for packing jacket cement paste |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4215951A (en) * | 1977-08-26 | 1980-08-05 | Halliburton Company | Platform leg plug |
| CN2527507Y (en) * | 2000-12-14 | 2002-12-25 | 中国石化胜利油田有限公司规划设计研究院 | Shallow plateform conduit support packer |
| CN201090138Y (en) * | 2007-07-31 | 2008-07-23 | 中国石油天然气集团公司 | Lower casing rapid grouting device |
| CN202215193U (en) * | 2010-10-21 | 2012-05-09 | 河北宝石特种柔性胶化有限公司 | Water-swelling self-sealing type packer |
| CN202745205U (en) * | 2012-03-31 | 2013-02-20 | 中国海洋石油总公司 | Grouting connection node used between steel structures of deep-water floating platforms |
| KR101938172B1 (en) * | 2012-10-17 | 2019-01-14 | 대우조선해양 주식회사 | Telescopic joint for drill ship |
| CN203383775U (en) * | 2013-08-09 | 2014-01-08 | 胜利油田胜机石油装备有限公司 | Filling permanent-solidification type sleeve-outside packer |
| CN103696728B (en) * | 2013-12-31 | 2016-05-11 | 杨德杰 | A kind of twin-stage self sealed thermal packer |
| CN204623783U (en) * | 2015-02-09 | 2015-09-09 | 衡水橡胶股份有限公司 | Self-closed type excluder |
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2015
- 2015-02-09 CN CN201510065909.XA patent/CN104859809B/en active Active
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| Publication number | Publication date |
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| CN104859809A (en) | 2015-08-26 |
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Address after: Hengshui City, Hebei Province, 053000 North Park industrial base Taocheng District Road No. 9 Applicant after: Heng an Polytron Technologies Inc Address before: 053000 Daqing East Road, Hebei, China, No. 27, No. Applicant before: Hengshui Rubber Co., Ltd. |
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Inventor after: Liu Baoquan Inventor after: Tian Jiande Inventor after: Ma Meiqin Inventor after: Du Zongzhou Inventor after: Zhou Jianfeng Inventor after: Zhang Jun Inventor after: Qiu Changsheng Inventor after: Fu Huamiao Inventor after: Lu Ruizhao Inventor before: Tian Jiande Inventor before: Liu Baoquan Inventor before: Du Zongzhou Inventor before: Ma Meiqin Inventor before: Zhou Jianfeng Inventor before: Zhang Jun Inventor before: Qiu Changsheng Inventor before: Fu Huamiao Inventor before: Lu Ruizhao |