CN105298434B - Packing element, compression packer and the encapsulating method of high temperature steam - Google Patents
Packing element, compression packer and the encapsulating method of high temperature steam Download PDFInfo
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- CN105298434B CN105298434B CN201510818944.4A CN201510818944A CN105298434B CN 105298434 B CN105298434 B CN 105298434B CN 201510818944 A CN201510818944 A CN 201510818944A CN 105298434 B CN105298434 B CN 105298434B
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Abstract
The present invention relates to field of sealing technology, more particularly to a kind of packing element of high temperature steam, there is the compression packer of the packing element and a kind of encapsulating method, wherein packing element to include seal, seal has the first seal section and the second seal section；First seal section easily compressed compared with the second seal section, and when being axially compressed, the first projection that the first seal section carries out radial direction is sealed, and the second projection of the radial direction that the second seal section is carried out is not enough to be sealed；Second seal section is set close to the steam hole of injection high-temperature steam, and then when steam hole ejects high-temperature steam, second seal section is acted on by high-temperature steam and continues the 3rd projection of radial direction to be sealed, to prevent high-temperature steam from the first seal section directly contacting or reducing the time that high-temperature steam directly contacts with the first seal section.The packing element of the present invention can realize low temperature seal and elevated-temperature seal, can play sealing function and can tolerance high-temperature steam.
Description
Technical field
The present invention relates to field of sealing technology, the compression more particularly to a kind of packing element of high temperature steam, with the packing element
Packer and a kind of encapsulating method.
Background technology
Rubber material has metal material (aluminium, lead, indium, stainless steel etc.), also have nonmetallic materials (rubber, plastics, ceramics,
Graphite etc.), composite (such as rubber-asbestos board, aerogel blanket-polyurethane), but most commonly used is heat-resistant powder filler material
Material.
When packing element needs to bear certain pressure to promote its deformation to seal, it is necessary to consider the deformation energy of packing element in itself
Power, if deformation deficiency can cause it can not play sealing function；If deformation is excessive, packing element may be caused to be failed because of conquassation, lost
Lose recovery capability.In addition, it is necessary to consider, when packing element is acted on by high-temperature steam, packing element also easily fails and lost extensive
Reactivation power.
The content of the invention
It is an object of the present invention to provide a kind of packing element that can play sealing function and can tolerance high-temperature steam.
It is another object of the present invention to provide a kind of glue that secondary seal is realized in the case where basic pressure is constant
Cylinder.
According to an aspect of the present invention, the invention provides a kind of packing element of high temperature steam, including it is flexible
Seal, the seal have along the axial arranged of the seal：
First seal section；With
Second seal section；
Two ends of the seal are respectively provided with forced section；
Wherein, first seal section, second seal section is easily compressed, when the forced section is made by axial compressive force
With and when causing the seal to be axially compressed, first seal section carries out the first projection of radial direction to be sealed, and institute
The second projection for stating the radial direction of the second seal section progress is not enough to be sealed；Second seal section is close to injection high-temperature steam
Steam hole set, and then when the steam hole ejects the high-temperature steam, second seal section is steamed by the high temperature
Vapour act on and continue radial direction the 3rd projection to be sealed, to prevent the high-temperature steam and first seal section straight
Contact reduces the time that the high-temperature steam directly contacts with first seal section.
Preferably, first seal section is that second seal section is polyether-ether-ketone.
It is further preferred that the projection for the radial direction that the described 3rd raised expanded by heating by second seal section is carried out with
The projection for the radial direction that second seal section is increased by thermoelasticity and carried out under axial compressive force effect is common to be produced.
It is further preferred that when first seal section and second seal section seal, first projection
Size is raised and the 3rd raised sum of different sizes with described second.
Preferably, the quantity of first seal section is one, and the quantity of second seal section is two, described first
Seal section is arranged between two second seal sections.
Preferably, first seal section and second seal section are arranged at intervals.
Preferably, there is resistant to elevated temperatures spacer ring, and described first between first seal section and second seal section
Seal section and second seal section are inconsistent with the spacer ring respectively.
It is further preferred that the spacer ring is the spacer ring of metal.
It is further preferred that first seal section and second seal section are set with equal chamfering at the spacer ring conflict
Put.
Preferably, there is resistant to elevated temperatures about collar, the through hole between first seal section and second seal section
Through the about collar；
First seal section and second seal section are inconsistent with the about collar respectively, the about collar cladding one
The outer surface of the seal section of part first and the second seal section, come the projection for reducing or preventing the part from carrying out the radial direction.
According to another aspect of the present invention, the present invention also provides a kind of compression packer, and it has above-mentioned technical side
Packing element described in one of case,
The packing element generally tubular, first seal section and second seal section are tubular；
One through hole runs through first seal section and second seal section.
According to a further aspect of the invention, the present invention also offer is a kind of is entered using one of the above-mentioned technical proposal packing element
The method of row sealing, including：
- axial compressive force is applied to the forced section, and when causing the seal to be axially compressed, first sealing
First projections of Duan Jinhang radial directions is sealed, and the second projection of the radial direction that second seal section is carried out is not enough to
Sealed；
- steam hole ejects the high-temperature steam, and second seal section is acted on and continued by the high-temperature steam
3rd projection of radial direction is to be sealed, described in preventing that the high-temperature steam from first seal section directly contacting or reducing
The time that high-temperature steam directly contacts with first seal section.
Preferably, in described encapsulating method：
First seal section elects silicon rubber or fluorubber as, and second seal section elects polyether-ether-ketone as；
Raised and the described second sealing for the radial direction that the described 3rd raised expanded by heating by second seal section is carried out
The projection for the radial direction that section is increased by thermoelasticity and carried out under axial compressive force effect is common to be produced.
According to the packing element of the present invention, because the first seal section is easily compressed compared with the second seal section, high-temperature steam be not passed through
When, when being acted on by axial compressive force, the first projection that the first seal section carries out radial direction is sealed, though second seal section is carried out
Radial direction it is second raised but be not enough to be sealed, due to the sealing of the first seal section, now disclosure satisfy that packing element is integrally right
The demand of sealing.When being passed through high-temperature steam, the second seal section is acted on by high-temperature steam and continues the 3rd projection of radial direction
To be sealed, to prevent high-temperature steam directly contacts or reduced high-temperature steam with the first seal section from directly being connect with the first seal section
The tactile time.In the process, the sealing of the first seal section is not only maintained, and because the sealing of second segment seal section also increases
The overall sealing property of packing element is added.Thus, as the packing element including the first seal section and the second seal section, serve on the whole
Sealing function has been resistant to high-temperature steam again.
Further, be passed through high-temperature steam and cause the second seal section by carry out radial direction the 3rd it is raised when, act on
Pressure on first seal section be still produce its occur first it is raised when equal size axial compressive force, it is such first sealing
Section decrement during the second seal section is by the 3rd projection for carrying out radial direction is basically unchanged, and will not produce continuation intensified pressure
And cause the failure of the first seal section.
It is significant to note that the first seal section is silicon rubber or fluorubber, the second seal section is polyether-ether-ketone.This
Sample, because silicon rubber or fluorubber are softer than polyether-ether-ketone, so the deformation of the first seal section is bigger, it is easier to seal.Subsequently it is passed through
During high-temperature steam, the second seal section of polyether-ether-ketone material occurs the characteristic of elasticity increase due to thermal expansion and under heat effect,
Its outer surface forms sealing, the footpath that the now described the 3rd raised expanded by heating by the second seal section is carried out under axial
To the projection projection of radial direction that is increased with the second seal section by thermoelasticity and carried out under axial compressive force effect common produce.It is attached
Band ground, when for packer, equally axial compressive force and high-temperature steam effect under, its inner surface be equally deformed and with
Heart pipe is brought into close contact to form sealing.Selected above and design, avoid the surfaces externally and internally of the second seal section of polyether-ether-ketone material
With directly contacting for high-temperature steam, it also prevent high-temperature steam and high-temperature steam and the directly contacted or reduced with the first seal section
The time that one seal section directly contacts, the service life of packing element is ensure that in the case where being passed through the operating mode of high-temperature steam for a long time.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.In accompanying drawing：
Fig. 1 is the position relationship schematic diagram of central tube and sleeve pipe；
Fig. 2 is the structural representation according to one embodiment of the invention packing element；
The structural representation of packing element when Fig. 3 is low temperature seal；
The structural representation of packing element when Fig. 4 is elevated-temperature seal.
Reference in figure is as follows：
10- seals, the seal sections of 101- first, the seal sections of 102- second, 103- through holes, the upper forced sections of 104-, under 105-
Forced section；
20- spacer rings；
30- central tubes；
40- sleeve pipes；
100- packing elements；
200- compression packers；
F- axial compressive forces；
D1- first is raised；
D2- second is raised.
Embodiment
Packer is a kind of key tool that oil field well recovers the oil, and widely uses and is adopted with oil field dispensing, separate zone stimulation, layering
The several work purposes such as oil, mechanical pipe water blockoff need, and packer needs to carry out the packing of annular space, and realizes the core of annular space packing
Center portion part is packing element.Core component of the packing element as packer, its quality directly affect the normal use effect of packer, made
With life-span etc., conclusive effect is played in packer.In thickened oil recovery, elastomeric material is difficult to bear 350 general packing element
DEG C high-temperature steam, easily occur aging, loss of elasticity phenomena such as, or even intensity decline to a certain extent when can start to rupture,
Make packing element seal failure, it is necessary to be regularly replaced in the short time, expend a large amount of man-hours and material.And individually using high-temperature resistance plastice
During packing element, because polyetheretherketonematerials materials are harder, reach needs oil pressure larger when setting.
The application exemplary as one, compression packer 200 as shown in Figure 1 have the packing element 100 of the present invention, institute
The generally tubular of packing element 100 is stated, first seal section 101 and second seal section 102 are tubular；One through hole 103 passes through
Wear first seal section 101 and second seal section 102.Compression packer 200 is needed in the wellbore different oil
Layer, water layer separate and bear certain pressure difference, it is desirable to can descend pit shaft precalculated position, packing is tight, and and can has resistance in underground
Long property, it is necessary to when can smoothly rise out.As shown in figure 1, Fig. 1 is the position relationship schematic diagram of central tube 30 and sleeve pipe 40, Fig. 2-Fig. 4
Shown compression packer 200 is used in series with oil pipe, and is maintained in the cylindrical space that oil pipe is formed with sleeve pipe 40.
As shown in Fig. 2 the present invention provides a kind of packing element 100, the packing element 100 is resistant to high-temperature steam, and packing element 100 is basic
Upper to include flexible seal 10, the seal 10 has the first axial arranged seal section along the seal 10
101 and second seal section 102.
Two ends of the seal 10 set forced section 104 and lower stress portion 105 respectively.It is apparent that when on by
When power portion 104 is acted on by axial compressive force F, lower stress portion 105 is also subjected to and axial compressive force F formed objects but work in opposite direction
With otherwise packing element 100 can not be compressed.
As shown in figure 3, second seal section 102 of the first seal section 101 is easily compressed, when the forced section by
When axial compressive force F is acted on and caused the seal 10 to be axially compressed, it is first raised to carry out radial direction for first seal section 101
D1 is sealed, and the second raised D2 of the radial direction that second seal section 102 is carried out is not enough to be sealed；Described second
Seal section 102 is set close to the steam hole (not shown) of injection high-temperature steam, and then described in ejecting when the steam hole
During high-temperature steam, as shown in figure 4, second seal section 102 is acted on by the high-temperature steam and continues the 3rd of radial direction
Projection is to be sealed, to prevent the high-temperature steam and first seal section 101 directly contact or reduced the high temperature from steaming
The time that vapour directly contacts with first seal section 101.
According to the packing element 100 of the present invention, when not being passed through high-temperature steam, because the first seal section 101 is compared with the second seal section
102 are easily compressed, and under axial compressive force F effects, the first raised D1 that the first seal section 101 carries out radial direction is sealed, though
Second seal section 102 carry out radial direction the second raised D2 but be not enough to be sealed, because the first seal section 101 is in low temperature
Sealing (in packer for set), now disclosure satisfy that packing element integrally to the demand of sealing.When being passed through high-temperature steam, the
Two seal sections 102 are continued the 3rd projection of radial direction by high-temperature steam effect to carry out elevated-temperature seal, to prevent high temperature from steaming
Vapour and the first seal section 101 directly contact or reduced the time that high-temperature steam directly contacts with the first seal section 101.Clearly
Ground, as shown in Figure 3 and Figure 4, when sealing surface (inner surface of sleeve pipe 40) is flat, the 3rd raised projection length is raised for first
The raised D2 of D1 and second difference.In the seal process of the second seal section 102, packing element 100 not only maintains the first seal section 101
Sealing, and because the sealing of second segment seal section also add the overall sealing property of packing element 100.Thus, as including
The packing element 100 of one seal section 101 and the second seal section 102, sealing function is served on the whole and has been resistant to high-temperature steam again.
In one exemplary embodiment of the invention, first seal section 101 is that second seal section 102 is
Polyether-ether-ketone.In other embodiments, the first seal section 101 and the second seal section 102 can also select as other materials, but
It should meet above-mentioned when being acted on by axial compressive force F, the first raised D1 that first seal section 101 carries out radial direction is close to carry out
Envelope, and the second raised D2 of the radial direction that second seal section 102 is carried out is not enough to be sealed, and the second seal section 102
Should be able to temperature distortion or softening, to carry out secondary seal.The effect of secondary seal is, avoids the outer of the second seal section 102
Surface directly contacts with high-temperature steam, also prevent high-temperature steam and directly contacts or reduce high temperature with the first seal section 101
The time that steam directly contacts with the first seal section 101, contact passage of the high-temperature steam with silicon rubber is separated, and oxidation is led to
Road, ensure the service life of packing element 100 in the case where being passed through the operating mode of high-temperature steam for a long time.
Especially, when the first seal section 101 is silicon rubber or fluorubber, when the second seal section 102 is polyether-ether-ketone, the 3rd
The projection for the radial direction that the raised expanded by heating by the second seal section 102 is carried out and the second seal section 102 by thermoelasticity increase and
Raised the producing jointly of the lower radial direction carried out of axial compressive force F effects, the superposition of two ways increase the 3rd raised projection length
Degree, contributes to the sealing of the second seal section 102.When packing element 100 is used for packer in figs. 3 and 4, equally in axial compressive force F
Under being acted on high-temperature steam, its inner surface is equally deformed and is brought into close contact to form sealing with central tube, avoids polyethers ether
The inner surface of second seal section 102 of ketone material directly contacts with high-temperature steam, also extends the service life of packing element.
It is emphasized that be passed through high-temperature steam and cause the second seal section 102 by carry out radial direction the 3rd it is raised when, make
With the pressure on the first seal section 101 be still produce its occur first it is raised when equal size axial compressive force F, so
First seal section 101 decrement during the second seal section 102 is by the 3rd projection for carrying out radial direction is basically unchanged, and will not be produced
It is raw to continue intensified pressure and cause the failure of the first seal section 101.
In Fig. 2-Fig. 4, the first seal section 101 and the second seal section 102 are tubular, and its outer dia is essentially identical i.e.
It can reach the effect sealed twice.In other embodiments, the first seal section 101 and the second seal section 102 can also be other
Shape, and when the first seal section 101 and the second seal section 102 seal, the first raised D1 size and the second raised D2
It is of different sizes with the 3rd raised sum, such as when the first seal section 101 and the second seal section 102 are tubular, they
Outer dia can be selected to differ, such as when finding that the second seal section 102 can not seal, it is close can suitably to increase by second
It is i.e. salable that the outer dia of envelope section 102 makes it have less projection.
When the steam hole for spraying high-temperature steam is only one, it can only set first seal section 101 and second close
Section 102 is sealed, the second seal section 102 is set close to the steam hole.Due to multiple packers, institute can be set in oil recovery process
High-temperature steam may be sprayed with the first seal section 101 of each packer up and down, thus when the packing element 100 of the present invention is used for
During compression packer 200, first seal section 101 and second seal section 102 need to be arranged at intervals, first sealing
The quantity of section 101 is one, and the quantity of second seal section 102 is two, and first seal section 101 is arranged on two institutes
Between stating the second seal section 102, it can so prevent the high-temperature steam from above-below direction from producing destruction to the first seal section 101.
It is previously mentioned, the present invention is silicon rubber or fluorubber from the first seal section 101, and the second seal section 102 is polyethers
Ether ketone.In another embodiment, can also set the first seal section 101 and the second seal section 102 to be, but due to intolerant to
High temperature, so cannot be used for the environment of high-temperature steam.In a further embodiment, the first seal section 101 and can also be set
Two seal sections 102 are polyether-ether-ketone, as described above can now be set the first seal section 101 and the second seal section 102 not
Sealing twice is realized with diameter, but in normal temperature, elasticity is poor due to polyether-ether-ketone, so needing the first seal section
101 and second seal section 102 the relatively great talent that sets of diameter it is convenient seal, thus cause the sleeve pipe 40 of packing element 100 more tired
It is difficult.At this point it is possible to the sealing that glue bucket 100 is only arranged to be formed due to the increase of polyether-ether-ketone elasticity in hot environment.
Referring to Fig. 2-Fig. 4, there is resistant to elevated temperatures spacer ring between first seal section 101 and second seal section 102
20, spacer ring 20 is preferably rigidity.In one embodiment, the spacer ring 20 is metal material.The through hole 103 through it is described every
Ring 20, and first seal section 101 and second seal section 102 are inconsistent with the spacer ring 20 respectively.Spacer ring 20 is set
Put, axial compressive force F can be passed to the first seal section 101, prevent the first seal section 101 with being glued during the second 102 high temperature of seal section
Even, and even if one of the first seal section 101 and the second seal section 102 are damaged, spacer ring 20 can also be kept one of other
Firmly.In Fig. 2-Fig. 4, first seal section 101 and second seal section 102 are set with equal chamfering at the conflict of spacer ring 20
Put.
In one embodiment, between first seal section 101 and second seal section 102 have it is resistant to elevated temperatures about
Collar, the through hole 103 run through the about collar.First seal section 101 and second seal section 102 respectively with it is described
About collar is inconsistent, and the about collar coats the outer surface of a part of first seal section 101 and second seal section 102
Outer surface, come reduce or prevent the part first seal section 101 outer surface and second seal section 102 it is outer
Surface carries out the projection of the radial direction.About the setting of collar can make the first seal section 101 and the second seal section 102 respectively in
Portion position carries out raised, increase sealing.About collar can be set a cladding a part of described first close by spacer ring in Fig. 2 20
The epitaxy part for sealing the outer surface of section 101 and the outer surface of second seal section 102 serves as.
Above only with compression packer 200 come illustrate one of packing element 100 of the present invention application, those skilled in the art should
Know, the packing element 100 of the present invention is used in into other fields falls within protection scope of the present invention.
The present invention also provides a kind of method sealed using the packing element 100, including：
- the axial compressive force F is applied to the forced section, and when causing the seal 10 to be axially compressed, described first
The outer surface of seal section 101 carries out the described first raised D1 of radial direction to be sealed, and the appearance of second seal section 102
Second raised D2 of the radial direction that face is carried out is not enough to be sealed.
- steam hole ejects the high-temperature steam, second seal section 102 by the high-temperature steam act on and continue into
Conduct to the 3rd projection to be sealed, to prevent the high-temperature steam from directly contacting or subtracting with first seal section 101
The time that few high-temperature steam directly contacts with first seal section 101.
As a preferred embodiment, first seal section 101 elects silicon rubber or fluorubber, second seal section as
102 elect polyether-ether-ketone as.The projection for the radial direction that the described 3rd raised expanded by heating by second seal section 102 is carried out and institute
State the common generation of projection for the radial direction that the second seal section 102 is increased by thermoelasticity and carried out under axial compressive force F effects.
Similarly, the method according to the invention, low temperature seal and elevated-temperature seal can be realized, sealing function and can be played
It is resistant to high-temperature steam.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, still can be direct according to present disclosure without departing from the spirit and scope of the present invention
It is determined that or derive many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognized
It is set to and covers other all these variations or modifications.
Claims (13)
1. a kind of packing element of high temperature steam (100), it is characterised in that including flexible seal (10), the sealing
Body (10) has along the axial arranged of the seal (10)：
First seal section (101)；With
Second seal section (102)；
Two ends of the seal (10) are respectively provided with forced section (104,105)；
Wherein, first seal section (101), second seal section (102) is easily compressed, when the forced section is by axial direction
When pressure acts on and causes the seal (10) to be axially compressed, it is first raised to carry out radial direction for first seal section (101)
To be sealed, and the second projection of the radial direction that second seal section (102) is carried out is not enough to be sealed；Described second is close
The steam hole that section (102) is sealed close to injection high-temperature steam is set, and then when the steam hole ejects the high-temperature steam, institute
State the second seal section (102) by the high-temperature steam act on and continue radial direction the 3rd projection to be sealed, to prevent
The high-temperature steam directly contacts or reduced the high-temperature steam and first seal section with first seal section (101)
(101) time directly contacted.
2. packing element (100) according to claim 1, it is characterised in that
First seal section (101) is silicon rubber or fluorubber, and second seal section (102) is polyether-ether-ketone.
3. packing element (100) according to claim 2, it is characterised in that
Raised and the described second sealing for the radial direction that the described 3rd raised expanded by heating by second seal section (102) is carried out
The projection for the radial direction that section (102) is increased by thermoelasticity and carried out under axial compressive force effect is common to be produced.
4. packing element (100) according to claim 3, it is characterised in that
When first seal section (101) and second seal section (102) seal, the described first raised size and institute
It is raised and the 3rd raised sum of different sizes to state second.
5. packing element (100) according to claim 1, it is characterised in that
The quantity of first seal section (101) is one, and the quantity of second seal section (102) is two, described first
Seal section (101) is arranged between two second seal sections (102).
6. packing element (100) according to claim 1, it is characterised in that
First seal section (101) and second seal section (102) are arranged at intervals.
7. packing element (100) according to claim 1, it is characterised in that
There is resistant to elevated temperatures spacer ring (20), and described between first seal section (101) and second seal section (102)
One seal section (101) and second seal section (102) are inconsistent with the spacer ring (20) respectively.
8. packing element (100) according to claim 7, it is characterised in that
The spacer ring (20) is the spacer ring (20) of metal.
9. packing element (100) according to claim 7, it is characterised in that
First seal section (101) and second seal section (102) are set with equal chamfering at the spacer ring (20) conflict.
10. packing element (100) according to claim 1, it is characterised in that
There is resistant to elevated temperatures about collar, through hole (103) between first seal section (101) and second seal section (102)
Through the about collar；
First seal section (101) and second seal section (102) are inconsistent with the about collar respectively, the about collar
The outer surface of a part of first seal section (101) and the outer surface of second seal section (102) are coated, to reduce or hinder
Only the outer surface of first seal section (101) of the part and the outer surface of second seal section (102) carry out the footpath
To projection.
A kind of 11. compression packer (200), it is characterised in that there is the packing element (100) described in one of claim 1-10,
The packing element (100) generally tubular, first seal section (101) and second seal section (102) are tubular；
One through hole (103) runs through first seal section (101) and second seal section (102).
12. a kind of usage right requires the method that one of the 1-10 packing element (100) is sealed, it is characterised in that including：
- axial compressive force is applied to the forced section, and when causing the seal (10) to be axially compressed, first sealing
First projection that section (101) carries out radial direction is sealed, and the second of the radial direction that second seal section (102) is carried out
Projection is not enough to be sealed；
- steam hole ejects the high-temperature steam, and second seal section (102) is acted on and continued by the high-temperature steam
3rd projection of radial direction is to be sealed, to prevent the high-temperature steam from directly contacting or subtracting with first seal section (101)
The time that few high-temperature steam directly contacts with first seal section (101).
13. encapsulating method according to claim 12, it is characterised in that
First seal section (101) elects silicon rubber or fluorubber as, and second seal section (102) elects polyether-ether-ketone as；
Raised and the described second sealing for the radial direction that the described 3rd raised expanded by heating by second seal section (102) is carried out
The projection for the radial direction that section (102) is increased by thermoelasticity and carried out under axial compressive force effect is common to be produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510818944.4A CN105298434B (en) | 2015-11-23 | 2015-11-23 | Packing element, compression packer and the encapsulating method of high temperature steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510818944.4A CN105298434B (en) | 2015-11-23 | 2015-11-23 | Packing element, compression packer and the encapsulating method of high temperature steam |
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| Publication Number | Publication Date |
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| CN105298434A CN105298434A (en) | 2016-02-03 |
| CN105298434B true CN105298434B (en) | 2017-12-22 |
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| CN201510818944.4A Active CN105298434B (en) | 2015-11-23 | 2015-11-23 | Packing element, compression packer and the encapsulating method of high temperature steam |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050184B (en) * | 2016-06-20 | 2018-11-16 | 天鼎联创密封技术（北京）有限公司 | Packing element, packer and the bridge plug of lower end sealing ring cladding copper sheet |
| CN105863553B (en) * | 2016-06-20 | 2018-12-18 | 天鼎联创密封技术（北京）有限公司 | Lower end sealing ring is coated with the packing element, packer and bridge plug of two panels copper sheet |
| CN105888602B (en) * | 2016-06-20 | 2019-05-03 | 天鼎联创密封技术（北京）有限公司 | Lower end sealing ring is coated with packing element, packer and the bridge plug of opening copper sheet |
| CN106014329A (en) * | 2016-07-06 | 2016-10-12 | 天鼎联创密封技术（北京）有限公司 | Rubber sleeve without copper sheet coating inner side face of sealing ring at lower end, packer and bridge plug |
| CN105927183A (en) * | 2016-07-06 | 2016-09-07 | 天鼎联创密封技术（北京）有限公司 | Rubber cylinder with lower sealing ring coated with upper and lower copper skins, packer and bridge plug |
| CN106089146B (en) * | 2016-08-22 | 2019-06-18 | 天鼎联创密封技术（北京）有限公司 | Packing element, packer and bridge plug including wire sealing ring |
| CN106121582B (en) * | 2016-08-22 | 2019-05-03 | 天鼎联创密封技术（北京）有限公司 | Both ends are packing element, packer and the bridge plug of hard sealing ring |
| CN106894784B (en) * | 2017-03-07 | 2019-03-19 | 中国石油集团渤海钻探工程有限公司 | High temperature and pressure packer and heat resisting and pressure resisting packing element |
| CN114382455B (en) * | 2022-01-12 | 2023-10-03 | 北京科源博慧技术发展有限公司 | Shale gas horizontal well repeated fracturing method |
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| US5165703A (en) * | 1991-03-20 | 1992-11-24 | Oem Components, Inc. | Anti-extrusion centering seals and packings |
| CN103104213B (en) * | 2012-12-14 | 2016-01-13 | 中国石油集团川庆钻探工程有限公司 | HTHP test packer |
| CN204283314U (en) * | 2014-11-19 | 2015-04-22 | 中国石油天然气股份有限公司 | Righting type packer |
| CN204283310U (en) * | 2014-11-26 | 2015-04-22 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of band spacer ring complex spring shoulder protector compression type packer tubling |
| CN204371211U (en) * | 2015-01-12 | 2015-06-03 | 中国石油大学(华东) | A kind of packer sealing structure based on the sealing of metal-rubber cylinder |
| CN205349290U (en) * | 2015-11-23 | 2016-06-29 | 天鼎联创密封技术（北京）有限公司 | Resistant high -temperature steam's packing element and compression packer |
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2015
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