CN206918252U - A kind of Novel down-hole tool combinations sealing device - Google Patents
A kind of Novel down-hole tool combinations sealing device Download PDFInfo
- Publication number
- CN206918252U CN206918252U CN201720460434.9U CN201720460434U CN206918252U CN 206918252 U CN206918252 U CN 206918252U CN 201720460434 U CN201720460434 U CN 201720460434U CN 206918252 U CN206918252 U CN 206918252U
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- ring
- seal ring
- sealing device
- spring
- shaped
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Abstract
The utility model discloses a kind of Novel down-hole tool combinations sealing device, including pressure ring, U-shaped tetrafluoro chuck, V-seal ring, high rigidity back-up ring and H type springs, the U-shaped tetrafluoro chuck upper end is provided with groove, the bottom portion of groove is provided with H type springs, the H matrix shape spring upper end is connected with spring energy-storage circle, the U-shaped tetrafluoro chuck upper end is connected with pressure ring, and the U-shaped tetrafluoro chuck lower end is connected with V-seal ring, and the V-seal ring lower end is provided with high rigidity back-up ring；Pressed so that the utility model is resistance to, up to 200Mpa, material energy high-low temperature resistant, corrosion-resistant, wearability is good, is sealed product more satisfactory in drilling equipment.
Description
Technical field
The present invention relates to downhole tool technical field of sealing technology, more particularly to a kind of Novel down-hole tool combinations sealing device.
Background technology
Subsurface environment has the features such as air humidity is big, and air-borne impurity content is high, and corrosive gas content is high, and this will
Ask wear resistance of seals high, corrosion resistance is strong, the performances such as water imbibition is low, along with there is high/low temperature（Usually -50 ~ 200）High pressure
Requirement, those performances before this just makes seal not only have will also can again can high voltage bearing sealing property under high/low temperature.Mesh
Can be high pressure resistant under preceding seal hot environment, but sealing property is less desirable at low ambient temperatures, when special pressure is high
Amount of leakage is big, and this class formation also can be equally applicable in heavy in section gash depth.
The content of the invention
It is an object of the invention to provide a kind of Novel down-hole tool combinations sealing device, pass through spring energy-storage circle and V-type
Ring, back-up ring, the structural shape of pressure ring combination, the structure is resistance to be pressed, up to 200Mpa, material energy high-low temperature resistant, corrosion-resistant, resistance to
Mill property is good.
To achieve these goals, the present invention, which solves the technique device taken of its technical problem, is：
A kind of Novel down-hole tool combinations sealing device, including pressure ring, U-shaped tetrafluoro chuck, V-seal ring, high rigidity gear
Circle and H type springs, the U-shaped tetrafluoro chuck upper end are provided with groove, and the bottom portion of groove is provided with H type springs, the H
Matrix shape spring upper end is connected with spring energy-storage circle, and the U-shaped tetrafluoro chuck upper end is connected with pressure ring, the U-shaped tetrafluoro chuck
Lower end is connected with V-seal ring, and the V-seal ring lower end is provided with high rigidity back-up ring.
As the preferred embodiment of embodiment, the U-shaped folder set is the chuck being processed into by tetrafluoro 25% carbon graphite of filling.
As the preferred embodiment of embodiment, the quantity of the V-seal ring is 3-5, and the V-seal ring composition is
The sealing ring that 20-25% tetrafluoros filling carbon fibre is processed into.
As the preferred embodiment of embodiment, the high rigidity back-up ring is the back-up ring that polyether-ether-ketone PEEK is processed into.
As the preferred embodiment of embodiment, the H types springs are hairspring alloy spring.
Because a kind of Novel down-hole tool combinations sealing device of the present invention employs above-mentioned technique device, that is, include pressure
Ring, U-shaped tetrafluoro chuck, V-seal ring, high rigidity back-up ring and H type springs, the U-shaped tetrafluoro chuck upper end are provided with groove,
The bottom portion of groove is provided with H type springs, and the H matrix shape spring upper end is connected with spring energy-storage circle, the U-shaped tetrafluoro folder
Set upper side is connected with pressure ring, and the U-shaped tetrafluoro chuck lower end is connected with V-seal ring, and the V-seal ring lower end is provided with high hard
Spend back-up ring；The U-shaped folder set is the chuck being processed into by tetrafluoro 25% carbon graphite of filling；The quantity of the V-seal ring is 3-
5, the V-seal ring composition is that 20-25% tetrafluoros fill the sealing ring that carbon fibre is processed into；The high rigidity back-up ring is poly-
The back-up ring that ether ether ketone PEEK is processed into；The H types springs are hairspring alloy spring.In addition, present invention synthesis uses bullet
Spring accumulation of energy circle and V-type ring, back-up ring, the structural shape of pressure ring combination, resistance to press, up to 200Mpa are material energy high-low temperature resistant, resistance to
Burn into wearability is good, is sealed product more satisfactory in drilling equipment.
Brief description of the drawings
Fig. 1 is the sectional view of the present invention.
Embodiment
As shown in figure 1, present invention is disclosed a kind of Novel down-hole tool combinations sealing device, including pressure ring 1, U-shaped tetrafluoro
Chuck 3, V-seal ring 4, high rigidity back-up ring 5 and H types springs 7, the U-shaped upper end of tetrafluoro chuck 3 are provided with groove 2, institute
State the bottom of groove 2 and be provided with H types springs 8, the upper end of H types springs 8 is connected with spring energy-storage circle 8, the U-shaped tetrafluoro
The upper end of chuck 3 is connected with pressure ring, and the U-shaped lower end of tetrafluoro chuck 3 is connected with V-seal ring 4, and the lower end of V-seal ring 4 is set
There is high rigidity back-up ring 5, U-shaped folder is covered 3, high rigidity back-up ring 5 and V-seal ring 4 by the method for high-precision numerical control lathe turning processing
Process, because PEEK hardness is high when processing back-up ring, it is desirable to which the cutter of processing is also that hardness is high, wearability is good, for example is used
It the cutter of PCD heads, can so extend cutting-tool's used life, also ensure that converted products dimensional accuracy, process V-seal ring
4 and also require during U-shaped folder set 3 cutter hardness is high, wearability is good, because their material belongs to high filling, hardness is also higher,
To ensure the stabilization of size and meeting required precision, PCD cutters are selected, H types springs 7 need to mold, and pass through compression molding
The spring sizes needed into us, heat treatment is then done in certain temperature and time and removes internal stress, improves the hard of spring
Degree, intensity.
As the preferred embodiment of embodiment, the U-shaped folder set 3 is the chuck being processed into by tetrafluoro 25% carbon graphite of filling.
As the preferred embodiment of embodiment, the quantity for stating V-seal ring 4 is 3-5, the composition of V-seal ring 4
The sealing ring being processed into for 20-25% tetrafluoros filling carbon fibre.
As the preferred embodiment of embodiment, the composition of high rigidity back-up ring 5 is polyether-ether-ketone PEEK back-up ring.
As the preferred embodiment of embodiment, the H types springs 7 are hairspring alloy spring.
During using the present invention, U-shaped folder of the present invention set plus H types spring can be ensured into the sealing of the seal at low temperature
Can, there are several V-seal rings to cooperatively form more lip seals, V-seal ring in addition to U-shaped folder set sealing in HTHP
Quantity according to coordinating the width of groove to select, usually 3-5, the back-up ring of bottom high rigidity, first, the resistance to pressure of enhancing
Degree, second, can play a part of anti-extrusion in high pressure, the effect of pressure ring is can to reduce those impurity of underground to enter bullet
Cause sealing property to reduce in spring, can also when there is buffer brake from protect seal lip, moreover it is possible to play positioning
Effect, convenient installation.
It is described above, only present pre-ferred embodiments, therefore the scope that the present invention is implemented can not be limited successively, i.e., according to
The equivalent changes and modifications that the scope of the claims of the present invention and description are made, all should still it belong in the range of the present invention covers.
Claims (3)
- A kind of 1. Novel down-hole tool combinations sealing device, it is characterised in that：Including pressure ring, U-shaped tetrafluoro chuck, V-seal ring, High rigidity back-up ring and H type springs, the U-shaped tetrafluoro chuck upper end are provided with groove, and the bottom portion of groove is provided with H matrix shape bullets Spring, the H matrix shape spring upper end are connected with spring energy-storage circle, and the U-shaped tetrafluoro chuck upper end is connected with pressure ring, described U-shaped Tetrafluoro chuck lower end is connected with V-seal ring, and the V-seal ring lower end is provided with high rigidity back-up ring, the number of the V-seal ring Measure as 3-5.
- A kind of 2. Novel down-hole tool combinations sealing device as claimed in claim 1, it is characterised in that：The high rigidity back-up ring The back-up ring being processed into for polyether-ether-ketone PEEK.
- A kind of 3. Novel down-hole tool combinations sealing device as claimed in claim 1, it is characterised in that：The H matrix shape bullet Spring is hairspring alloy spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720460434.9U CN206918252U (en) | 2017-04-28 | 2017-04-28 | A kind of Novel down-hole tool combinations sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720460434.9U CN206918252U (en) | 2017-04-28 | 2017-04-28 | A kind of Novel down-hole tool combinations sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206918252U true CN206918252U (en) | 2018-01-23 |
Family
ID=61306400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720460434.9U Expired - Fee Related CN206918252U (en) | 2017-04-28 | 2017-04-28 | A kind of Novel down-hole tool combinations sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206918252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356545A (en) * | 2018-10-29 | 2019-02-19 | 中石化石油工程技术服务有限公司 | A kind of downhole tool sealing structure |
-
2017
- 2017-04-28 CN CN201720460434.9U patent/CN206918252U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356545A (en) * | 2018-10-29 | 2019-02-19 | 中石化石油工程技术服务有限公司 | A kind of downhole tool sealing structure |
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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: 20180123 |