CN206845893U - High temperature well head sealing device - Google Patents
High temperature well head sealing device Download PDFInfo
- Publication number
- CN206845893U CN206845893U CN201720612937.3U CN201720612937U CN206845893U CN 206845893 U CN206845893 U CN 206845893U CN 201720612937 U CN201720612937 U CN 201720612937U CN 206845893 U CN206845893 U CN 206845893U
- Authority
- CN
- China
- Prior art keywords
- ring
- well head
- high temperature
- sealing
- trim ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Gasket Seals (AREA)
Abstract
The utility model discloses a kind of high temperature well head sealing device, including sealing shroud body, in addition to interior trim ring and outer trim ring, some inner seal rings are provided between the interior trim ring and sealing shroud body, the inner seal ring is located at sealing shroud inner body wall；Some exterior seal rings are provided between the outer trim ring and sealing shroud body, the exterior seal ring is located at sealing shroud body outer wall；The inner seal ring and exterior seal ring are graphite material.Sealing device of the present utility model, using carbon shoe, high temperature resistant, in well head, sealing can be excited after hanger seal failure, it is ensured that wellhead sealing.
Description
Technical field
It the utility model is related to sealing device；More particularly to a kind of high temperature well head sealing device.
Background technology
Only load casing hanger in conventional well head sealing operation to be sealed, but may when wellhead temperature is too high
The situation of hanger seal failure occurs, therefore in order to preferably ensure the sealing property of well head, it is necessary to a kind of resistant to elevated temperatures
Sealing device.
Utility model content
The utility model purpose is：In order to solve the problems, such as that the prior art in above-mentioned background technology is present, there is provided one
Kind high temperature well head sealing device, can excite sealing, it is ensured that well head is close in high temperature resistant in the case of hanger seal failure
Feng Xing.
Technical scheme is used by the utility model solves its technical problem：High temperature well head sealing device, including it is close
Big envelope body, in addition to interior trim ring and outer trim ring, some inner seal rings are provided between the interior trim ring and sealing shroud body, it is described
Inner seal ring is located at sealing shroud inner body wall；Some exterior seal rings are provided between the outer trim ring and sealing shroud body, it is described
Exterior seal ring is located at sealing shroud body outer wall；The inner seal ring and exterior seal ring are graphite material.
Preferably：The outer trim ring is provided with two bolts hole, and matching external pressure bolt and interior is respectively equipped with it
Press bolt；The sealing shroud body, which corresponds to, is provided with bolt hole A at external pressure bolt, the bottom of the external pressure bolt puts in bolt hole A
It is interior；
The interior trim ring, which corresponds to, is provided with pressure-bearing platform at internal pressure bolt, when turning internal pressure bolt downwards, its bottom, which is against, holds
Present a theatrical performance as the last item on a programme upper surface.
Preferably：The inner seal ring has two, and two inner seal rings are superimposed setting up and down.
Preferably：The exterior seal ring has two, and two exterior seal rings are superimposed setting up and down.
Preferably：Two spiro keyhole positions in outer trim ring same diametrically.
Preferably：The axis of the bolt hole and the axis parallel of sealing shroud body.
Compared with prior art, the utility model has the advantages that：
Compared with prior art, sealing device of the present utility model, using carbon shoe, high temperature resistant, installed in well head
It is interior, sealing can be excited after hanger seal failure, it is ensured that wellhead sealing.
In addition, of the present utility model rational in infrastructure, easy for installation, inside and outside sealing can be separated and excited, and use is more preferably square
Just.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is a kind of preferred embodiment structural representation of the utility model；
Fig. 2 is the utility model use state diagram.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As shown in figure 1, high temperature well head sealing device, including sealing shroud body 1, in addition to interior trim ring 4 and outer trim ring 5,
Two inner seal rings 2 for being superimposed and setting are provided between the interior trim ring 4 and sealing shroud body 1, the inner seal ring 2 is positioned at sealing
Cover at the inwall of body 1；Two exterior seal rings 3 for being superimposed and setting are provided between the outer trim ring 5 and sealing shroud body 1, it is described outer
Sealing ring 3 is located at the outer wall of sealing shroud body 1；The inner seal ring 2 and exterior seal ring 3 are graphite material.Exterior seal ring 3 is used
Sealing between sealing device and well head, inner seal ring 2 are used for sealing device and the sealing inserted between the pipeline in it.Adopt
, can be with high temperature resistant, in high temperature environments when hanger answers high temperature and causes seal failure with the sealing ring of multiple graphite material
The sealing of well head can be protected by this sealing device.
It is still as shown in Figure 1：The outer trim ring 5 is provided with two bolts hole 51, and two bolts hole 51 are located at outer trim ring 5
Same diametrically, and the axis parallel of the axis of bolt hole 51 and sealing shroud body 1.In two bolts hole 51 respectively
Provided with matching external pressure bolt 6 and internal pressure bolt 7；Bolt hole is provided with the corresponding external pressure bolt 6 of sealing shroud body 1
A11, the bottom of the external pressure bolt 6 are put in bolt hole A11；Pressure-bearing platform is provided with the corresponding internal pressure bolt 7 of interior trim ring 4
41, when turning internal pressure bolt 7 downwards, its bottom is against the upper surface of pressure-bearing platform 41.
Sealing can be excited by turning corresponding bolt.It is outer trim ring 5 and sealing ring sheet when tightening external pressure bolt 6
Range compress between body 1, exterior seal ring 3 is extruded, so as to excite outer ring to seal.When turning internal pressure bolt 7 downwards, its bottom is supported
In the upper surface of pressure-bearing platform 41, make Range compress between interior trim ring 4 and sealing ring body 1, extrude inner seal ring 2 so as to excite inner ring
Sealing.Inside and outside sealing can excite respectively, be barely affected therebetween.And the present apparatus is simple in construction, toward in well head
It is also very convenient during installation.
As shown in Fig. 2 it is present apparatus use state diagram.Hanger 9 is first put into well head 8 to be sealed.It incite somebody to action this
Device is arranged on the top of hanger 9.After hanger 9 fails, the internal pressure bolt 7 of external pressure bolt 6/ is turned with startup pair from top
Answer sealing function.
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, pass through above-mentioned description, related work people
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This item is real
The content being not limited to new technical scope on specification, it is necessary to which its technology is determined according to right
Property scope.
Claims (6)
1. high temperature well head sealing device, including sealing shroud body（1）, it is characterised in that：Also include interior trim ring（4）With outer trim ring
（5）, the interior trim ring（4）With sealing shroud body（1）Between be provided with some inner seal rings（2）, the inner seal ring（2）Positioned at close
Big envelope body（1）At inwall；The outer trim ring（5）With sealing shroud body（1）Between be provided with some exterior seal rings（3）, it is described outer
Sealing ring（3）Positioned at sealing shroud body（1）At outer wall；The inner seal ring（2）And exterior seal ring（3）It is graphite material.
2. high temperature well head sealing device as claimed in claim 1, it is characterised in that：The outer trim ring（5）It is provided with two
Bolt hole（51）, matching external pressure bolt is respectively equipped with it（6）With internal pressure bolt（7）；The sealing shroud body（1）It is right
Answer external pressure bolt（6）Place is provided with bolt hole A（11）, the external pressure bolt（6）Bottom put in bolt hole A（11）It is interior；
The interior trim ring（4）Corresponding internal pressure bolt（7）Place is provided with pressure-bearing platform（41）, internal pressure bolt is turned when downwards（7）When, its bottom
End is against pressure-bearing platform（41）Upper surface.
3. high temperature well head sealing device as claimed in claim 1 or 2, it is characterised in that：The inner seal ring（2）Have two
Root, and two inner seal rings（2）Superposition is set up and down.
4. high temperature well head sealing device as claimed in claim 1 or 2, it is characterised in that：The exterior seal ring（3）Have two
Root, and two exterior seal rings（3）Superposition is set up and down.
5. high temperature well head sealing device as claimed in claim 2, it is characterised in that：Two bolts hole（51）Positioned at outer
Trim ring（5）Same diametrically.
6. high temperature well head sealing device as claimed in claim 2, it is characterised in that：The bolt hole（51）Axis with
Sealing shroud body（1）Axis parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720612937.3U CN206845893U (en) | 2017-05-31 | 2017-05-31 | High temperature well head sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720612937.3U CN206845893U (en) | 2017-05-31 | 2017-05-31 | High temperature well head sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206845893U true CN206845893U (en) | 2018-01-05 |
Family
ID=60797905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720612937.3U Expired - Fee Related CN206845893U (en) | 2017-05-31 | 2017-05-31 | High temperature well head sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206845893U (en) |
-
2017
- 2017-05-31 CN CN201720612937.3U patent/CN206845893U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107387015A (en) | A kind of sealed casing head of HTHP MULTIPLE COMPOSITE | |
| CN206845893U (en) | High temperature well head sealing device | |
| CN104634514A (en) | Device for testing sealing performance of rubber cylinder assembly of packer | |
| CN207278233U (en) | A kind of sealed casing head of high temperature and pressure MULTIPLE COMPOSITE | |
| CN205638328U (en) | Well head hangs assembly | |
| CN210087277U (en) | High-pressure-bearing oil production wellhead device | |
| CN203796211U (en) | Well sealing device | |
| CN104695769B (en) | A kind of dust and water proof apparatus of electronic seal lock | |
| CN207080186U (en) | Self-compensation sealed slips hanger | |
| CN104653140A (en) | Wellhead anti-theft device | |
| CN105350941B (en) | Push-down instruction device and rubber plug downlink indicate cementing head | |
| CN205639939U (en) | Fractured well mouth high -speed joint union | |
| CN108980347A (en) | High temperature well head sealing device | |
| CN205350391U (en) | Bivalve pole over -and -under type chlorine is with, for ammonia corrugated tube stop valve | |
| CN204691696U (en) | A kind of high-temperature metal sealing petroleum tube connector | |
| CN206293869U (en) | Flame proof armouring double containment cable entry | |
| CN103912228B (en) | Do not give up replacing device for gate valve | |
| CN201024912Y (en) | Metal sealing petroleum tube connector | |
| CN206448790U (en) | A kind of spherical glue core of the annular preventer with metal insert | |
| CN206293687U (en) | New flame proof armored cable connector | |
| CN201756940U (en) | Expansion self-sealing tubing stopper | |
| CN206419461U (en) | A kind of chain box sealing structure | |
| CN206376781U (en) | A kind of metal sealing hanging device of oil sleeve | |
| CN206915768U (en) | The seal closure structure of Yellow phosphorus recovering device | |
| CN212689989U (en) | Temperature-resistant pressure-resistant packer sealing rubber barrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |