CN204267008U - A kind of point steam injection string - Google Patents
A kind of point steam injection string Download PDFInfo
- Publication number
- CN204267008U CN204267008U CN201420473193.8U CN201420473193U CN204267008U CN 204267008 U CN204267008 U CN 204267008U CN 201420473193 U CN201420473193 U CN 201420473193U CN 204267008 U CN204267008 U CN 204267008U
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- CN
- China
- Prior art keywords
- end packer
- steam injection
- packer
- steam
- injection string
- 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.)
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Abstract
The utility model discloses a kind of point of steam injection string, it comprises upper end packer, oil pipe, steam distributing valve and lower end packer, is characterized in connecting extension pup joint between this steam distributing valve with lower end packer.After the utility model realizes, in steam injection process, due to being absorbed by extension pup joint completely by thermal expansion length of the composition component between upper and lower end packer, the heat expansion power acting on lower end packer cannot be formed, thus effectively ensure that lower end packer set effect, and then improve the functional performance of point steam injection string.
Description
Technical field
The utility model relates to a kind of thick oil hot-extraction column jacket, is exactly a kind of point of steam injection string.
Technical background
Point steam injection string is the important composition parts of thick oil hot-extraction column jacket, has a wide range of applications in oilfield.Existing point of steam injection string is primarily of aboveground and down-hole two parts tubing string composition.Down-hole string is usually by from top to bottom, and the instlated tubular connected successively, telescoping tube, upper end packer, oil pipe, steam distributing valve, lower end packer, adapter, tail pipe and plug form.Wherein, packer many employings patent No. is " ZL00212788.1 ", name is called the utility model patent technology of " a kind of thermal packer ".The subject matter that this point of steam injection string in use exists is: in steam injection process, the heat expansion power that composition component between upper and lower end packer produce directly acts on lower end packer, cause the initial set position of lower end packer to change, thus reduce it and set effect.
Summary of the invention
The purpose of this utility model is for people provide a kind of lower end packer that can make from point steam injection string of the heat expansion power effect of the composition component between upper and lower end packer, thus solves the problems referred to above of prior art existence.
The purpose of this utility model is achieved in that it comprises upper end packer, oil pipe, steam distributing valve and lower end packer, is characterized in connecting extension pup joint between this steam distributing valve with lower end packer.
Above-mentioned upper end packer, oil pipe, steam distributing valve, extension pup joint and lower end packer are assembled into individual components.
After the utility model realizes, in steam injection process, due to being absorbed by extension pup joint completely by thermal expansion length of the composition component between upper and lower end packer, the heat expansion power acting on lower end packer cannot be formed, thus be conducive to lower end packer set effect, and then improve the functional performance of point steam injection string.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the assembling parts figure of the utility model upper end packer, oil pipe, steam distributing valve, extension pup joint and lower end packer.
Detailed description of the invention
As seen from Figure 1, the utility model comprises well head 1, instlated tubular 2, telescoping tube 3, upper end packer, oil pipe 5, steam distributing valve 6 and lower end packer 8.
The utility model and the main distinction of prior art are extension pup joints 7 of connecting between steam distributing valve 6 with lower end packer 8.
Should illustrate, extension pup joint 7 is compared with existing telescoping tube 3, and both makes are identical, and just the length of extension pup joint 7 is much smaller than telescoping tube 3.
In actual applications, for convenience of the storage of component of the utility model composition, keeping, transport and in-site installation, also upper end packer, oil pipe, steam distributing valve, extension pup joint and lower end packer are assembled into relatively independent parts according to the mode shown in Fig. 2.
Claims (2)
1. a point steam injection string, it comprises upper end packer, oil pipe, steam distributing valve and lower end packer, it is characterized in that connecting between this steam distributing valve with lower end packer extension pup joint.
2. one according to claim 1 divides steam injection string, it is characterized in that described upper end packer, oil pipe, steam distributing valve, extension pup joint and lower end packer are assembled into individual components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420473193.8U CN204267008U (en) | 2014-08-18 | 2014-08-18 | A kind of point steam injection string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420473193.8U CN204267008U (en) | 2014-08-18 | 2014-08-18 | A kind of point steam injection string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267008U true CN204267008U (en) | 2015-04-15 |
Family
ID=52801880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420473193.8U Active CN204267008U (en) | 2014-08-18 | 2014-08-18 | A kind of point steam injection string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267008U (en) |
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2014
- 2014-08-18 CN CN201420473193.8U patent/CN204267008U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230428 Address after: 110141 Yao village, Yuhong Township, Yuhong District, Liaoning, Shenyang Patentee after: Shenyang Fangyuan Chemical Machinery Factory Address before: 110141 Yuhong District, Shenyang City, Liaoning Province, Hong Jia village, Shenyang Xinfeng Energy Technology Co., Ltd. Patentee before: Sun Bo |
|
| TR01 | Transfer of patent right |