CN206053898U - A kind of down-hole High Temperature High Pressure sealing drum - Google Patents
A kind of down-hole High Temperature High Pressure sealing drum Download PDFInfo
- Publication number
- CN206053898U CN206053898U CN201621061114.8U CN201621061114U CN206053898U CN 206053898 U CN206053898 U CN 206053898U CN 201621061114 U CN201621061114 U CN 201621061114U CN 206053898 U CN206053898 U CN 206053898U
- Authority
- CN
- China
- Prior art keywords
- support ring
- packing element
- high temperature
- lower support
- high pressure
- 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
Abstract
The utility model discloses a kind of down-hole High Temperature High Pressure sealing drum, including center, packing element, upper support ring, lower support ring, the packing element, upper support ring, lower support ring are enclosed within the outside of center, support ring is gone up wherein positioned at packing element upper end, lower support ring is located at packing element lower end, and the packing element inwall opens up cannelure.The examination cannelure cross section is semicircle.The cannelure is opened in packing element inwall center.The packing element and upper support ring have contact with each other in axial end and radial circumference face；The packing element and lower support ring have contact with each other in axial end and radial circumference face.This utility model forms effective annular space sealing using high-temperature sealing material red copper, politef and the performance characteristics of modified fluorubber using unique structure design.
Description
Technical field
This utility model is related to the sealing drum of thermal production well packer, specifically a kind of down-hole High Temperature High Pressure sealing
Cylinder.
Background technology
Heavy crude reservoir is the primary position produced on oilfield stable production, and as viscosity of crude is high, steam injection thermal recovery is that such oil reservoir is opened
The leading technology technology sent out, is to ensure steam injection efficiency and pit shaft safety, needs intact pit shaft air-proof condition, and high temperature high voltage resistant is close
Sealed tube is the critical component to form the sealing of thermal recovery well shaft.Thermal production well is commonly used at present：Graphite grazing cylinder energy high temperature resistant but intolerant to height
Pressure；Politef is resistant to certain high temperature, but creep properties is strong, individually can not hold high pressure for a long time.
Utility model content
The purpose of this utility model is to provide a kind of down-hole High Temperature High Pressure sealing drum, using high-temperature sealing material red copper,
Politef and the performance characteristics of modified fluorubber, using unique structure design, form effective annular space sealing.
In order to reach above-mentioned purpose, this utility model employs following technical scheme, a kind of down-hole High Temperature High Pressure sealing drum,
Including center, packing element, upper support ring, lower support ring, the packing element, upper support ring, lower support ring are enclosed within the outside of center,
Support ring is gone up wherein positioned at packing element upper end, lower support ring is located at packing element lower end, and the packing element inwall opens up cannelure.
The examination cannelure cross section is semicircle.
The cannelure is opened in packing element inwall center.
The packing element and upper support ring have contact with each other in axial end and radial circumference face；The packing element and lower support
Ring has contact with each other in axial end and radial circumference face.
The packing element adopts the facial contact of circular cone with upper support ring, lower support ring when radial circumference face contacts.
The upper support ring upper end is also connected with upper copper bowl, and lower support ring lower end is also connected with lower copper bowl, the upper support ring and
Upper copper bowl has contact with each other in axial end and radial circumference face；The lower support ring and lower copper bowl are in axial end and footpath
Have contact with each other to periphery.
The upper support ring and upper copper bowl when radial circumference face contacts adopt the facial contact of circular cone, the lower support ring and
Lower copper bowl adopts the facial contact of circular cone when radial circumference face contacts.
Using modified fluorubber, upper and lower support ring adopts modified Teflon to the packing element, and upper and lower copper bowl is using purple
Copper.
Compared to prior art, this utility model has the advantages that：
Using three kinds of high temperature sealing materials, packing element, the sealing of support ring two-stage and copper bowl, support ring two class protection are formed,
Seal beneficial to long-life, high-temperature high pressure annular space.
Description of the drawings
Fig. 1 is a kind of structural representation of down-hole High Temperature High Pressure sealing drum of this utility model.
In figure：Upper copper bowl 1, upper support ring 2, packing element 3, center 4, lower support ring 5, lower copper bowl 6.
Specific embodiment
Relevant detailed description of the present utility model and technology contents, coordinate description of the drawings as follows, but accompanying drawing only provide ginseng
Examine and purposes of discussion, not for being any limitation as to this utility model.
According to Fig. 1, a kind of down-hole High Temperature High Pressure sealing drum, including center 4, packing element 3, upper support ring 2, lower support ring 5,
The packing element, upper support ring, lower support ring are enclosed within the outside of center, wherein upper support ring is located at packing element upper end, lower support ring
Positioned at packing element lower end, the packing element inwall opens up cannelure.The examination cannelure cross section is semicircle.The cannelure is opened up
In packing element inwall center.A semicircle is dug at 3 medial surface center of high temperature packing element, is easy to the pressurized outside tympanites of high temperature packing element, is beneficial to
High pressure sealing；
The packing element and upper support ring have contact with each other in axial end and radial circumference face；The packing element and lower support
Ring has contact with each other in axial end and radial circumference face.The packing element is with upper support ring, lower support ring in radial circumference face
Circular cone facial contact is adopted during contact.The upper support ring upper end is also connected with upper copper bowl 1, and lower support ring lower end is also connected with lower copper bowl
6, the upper support ring and upper copper bowl have contact with each other in axial end and radial circumference face；The lower support ring and lower copper bowl
Have contact with each other in axial end and radial circumference face.The upper support ring and upper copper bowl are adopted when radial circumference face contacts
The facial contact of circular cone, the lower support ring and lower copper bowl adopt the facial contact of circular cone when radial circumference face contacts.The glue of tympanites
Cylinder, the upper and lower support ring 2,5 of reverse extrusion and upper and lower copper bowl 1,6, make to open outside copper bowl and support ring, in protection high temperature packing element 3
Meanwhile, form primary pressure-resistant seal.
Using modified fluorubber, upper and lower support ring adopts modified Teflon to the packing element, and upper and lower copper bowl is using purple
Copper.
Sealing drum is assemblied on layer separating packer, compresses the elevated-temperature seal cylinder by hydraulic piston.After piston is pressurized, first
Upper and lower copper bowl 1,6 is promoted, upper and lower support ring 2,5 and high temperature packing element 3 is extruded, 3 pressurized tympanites of high temperature packing element insulate annular space.It is high
A semicircle is dug at 3 medial surface center of warm packing element, is easy to the pressurized outside tympanites of high temperature packing element, beneficial to high pressure sealing；While the glue of tympanites
Cylinder, the upper and lower support ring 2,5 of reverse extrusion and upper and lower copper bowl 1,6, make to open outside copper bowl and support ring, in protection high temperature packing element 3
Meanwhile, form primary pressure-resistant seal.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the scope of the claims of the present utility model, its
He all should all belong to the scope of the claims of the present utility model with the equivalence changes of patent spirit of the present utility model.
Claims (8)
1. a kind of down-hole High Temperature High Pressure sealing drum, it is characterised in that including center, packing element, upper support ring, lower support ring, institute
State packing element, upper support ring, lower support ring to be enclosed within the outside of center, wherein upper support ring is located at packing element upper end, lower support ring position
In packing element lower end, the packing element inwall opens up cannelure.
2. a kind of down-hole High Temperature High Pressure sealing drum according to claim 1, it is characterised in that the cannelure cross section is
It is semicircle.
3. a kind of down-hole High Temperature High Pressure sealing drum according to claim 2, it is characterised in that the cannelure is opened in glue
Cylinder inwall center.
4. a kind of down-hole High Temperature High Pressure sealing drum according to claim 1, it is characterised in that the packing element and upper support ring
Have contact with each other in axial end and radial circumference face；The packing element and lower support ring are in axial end and radial circumference face
Have contact with each other.
5. a kind of down-hole High Temperature High Pressure sealing drum according to claim 4, it is characterised in that the packing element and upper support
Ring, lower support ring adopt the facial contact of circular cone when radial circumference face contacts.
6. a kind of down-hole High Temperature High Pressure sealing drum according to claim 1, it is characterised in that the upper support ring upper end is also
Connection upper copper bowl, lower support ring lower end are also connected with lower copper bowl, and the upper support ring and upper copper bowl are round in axial end and radially
Side face has contact with each other；The lower support ring and lower copper bowl have contact with each other in axial end and radial circumference face.
7. a kind of down-hole High Temperature High Pressure sealing drum according to claim 6, it is characterised in that the upper support ring and upper copper
Bowl adopts the facial contact of circular cone, the lower support ring and lower copper bowl to adopt when radial circumference face contacts when radial circumference face contacts
With the facial contact of circular cone.
8. a kind of down-hole High Temperature High Pressure sealing drum according to claim 7, it is characterised in that the packing element is using modified fluorine
Rubber, upper and lower support ring adopt modified Teflon, upper and lower copper bowl to adopt red copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061114.8U CN206053898U (en) | 2016-09-18 | 2016-09-18 | A kind of down-hole High Temperature High Pressure sealing drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621061114.8U CN206053898U (en) | 2016-09-18 | 2016-09-18 | A kind of down-hole High Temperature High Pressure sealing drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206053898U true CN206053898U (en) | 2017-03-29 |
Family
ID=58370191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621061114.8U Expired - Fee Related CN206053898U (en) | 2016-09-18 | 2016-09-18 | A kind of down-hole High Temperature High Pressure sealing drum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206053898U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775316A (en) * | 2021-11-11 | 2021-12-10 | 中石化西南石油工程有限公司 | Compression type rubber barrel assembly for packer and manufacturing method thereof |
-
2016
- 2016-09-18 CN CN201621061114.8U patent/CN206053898U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113775316A (en) * | 2021-11-11 | 2021-12-10 | 中石化西南石油工程有限公司 | Compression type rubber barrel assembly for packer and manufacturing method thereof |
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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 |
Granted publication date: 20170329 Termination date: 20200918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |