CN202157778U - Polyurethane simple and easy self-sealing core - Google Patents
Polyurethane simple and easy self-sealing core Download PDFInfo
- Publication number
- CN202157778U CN202157778U CN2011202431704U CN201120243170U CN202157778U CN 202157778 U CN202157778 U CN 202157778U CN 2011202431704 U CN2011202431704 U CN 2011202431704U CN 201120243170 U CN201120243170 U CN 201120243170U CN 202157778 U CN202157778 U CN 202157778U
- Authority
- CN
- China
- Prior art keywords
- polyurethane
- self
- sealing core
- main body
- easy self
- 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
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Abstract
A polyurethane simple and easy self-sealing core mainly resolves the problem that existing self-sealing cores are low in strength and is characterized in that a strengthening plate (2) is arranged in a polyurethane main body (1), and the strengthening plate (2) is cast with the polyurethane main body (1) into a whole. The polyurethane simple and easy self-sealing core has the advantage of being high in strength.
Description
Technical field
The utility model relates to the used simple and easy self-sealing core of seal, especially polyurethane of operation shut-in well in the oil recovery field, oil field.
Background technology
In the oil field operation process, when guaranteeing Operating Pressure, do not produce the excessive phenomenon of blowout or circulation fluid, need blowout preventer be installed at the well head place.Blowout preventer generally adopts the self-sealing structure at present, and self-sealing core is the main seal of blowout preventer.And existing self-sealing core is fragile under the high pressure effect because there is the low problem of intensity in reasons in structure, influences sealing effectiveness.
Summary of the invention
In order to solve the existing low problem of self-sealing core intensity, the utility model provides a kind of polyurethane simple and easy self-sealing core, and the simple and easy self-sealing core of this polyurethane has advantages of high strength.
The technical scheme of the utility model is: the simple and easy self-sealing core of this polyurethane comprises the polyurethane main body.The polyurethane main body is built-in with stiffener, and stiffener and polyurethane main body are cast into one.
The utlity model has following beneficial effect: the simple and easy self-sealing core of this polyurethane is built-in with stiffener owing to adopt the polyurethane main body, and stiffener and polyurethane main body are cast into integrative-structure.Utilize the intensity of stiffener self-sealing core, thereby improve self-styled effect, under the high pressure effect, guaranteed its integrity, effectively prevent the excessive and blowout phenomenon generation of circulation fluid.The simple and easy self-sealing core of this polyurethane has the characteristics of intensity height and self-styled effect good job thus.
Description of drawings:
Accompanying drawing 1 is the utility model structural representation.
1-polyurethane main body among the figure, the 2-stiffener.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1, the simple and easy self-sealing core of this polyurethane comprises polyurethane main body 1.Polyurethane main body 1 is built-in with stiffener 2, and stiffener 2 is cast into one with polyurethane main body 1.
During actual the use, with existing identical.When operation; When pressure raises, owing in polyurethane main body 1, increase stiffener 2, thereby increase the intensity of polyurethane main body 1; Also just increased the intensity of self-sealing core; Improve the self-styled effect of self-sealing core, guaranteed the integrity under the high pressure effect, effectively prevented the excessive and blowout phenomenon generation of circulation fluid.The simple and easy self-sealing core of this polyurethane has the characteristics of intensity height and self-styled effect good job thus.
Claims (1)
1. the simple and easy self-sealing core of polyurethane comprises polyurethane main body (1), it is characterized in that: polyurethane main body (1) is built-in with stiffener (2), and stiffener (2) is cast into one with polyurethane main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202431704U CN202157778U (en) | 2011-07-12 | 2011-07-12 | Polyurethane simple and easy self-sealing core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202431704U CN202157778U (en) | 2011-07-12 | 2011-07-12 | Polyurethane simple and easy self-sealing core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157778U true CN202157778U (en) | 2012-03-07 |
Family
ID=45765419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202431704U Expired - Fee Related CN202157778U (en) | 2011-07-12 | 2011-07-12 | Polyurethane simple and easy self-sealing core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552652A (en) * | 2019-08-05 | 2019-12-10 | 大庆市普庆密封材料配件有限公司 | carbon silica gel self-sealing core for well drilling |
-
2011
- 2011-07-12 CN CN2011202431704U patent/CN202157778U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552652A (en) * | 2019-08-05 | 2019-12-10 | 大庆市普庆密封材料配件有限公司 | carbon silica gel self-sealing core for well drilling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20120712 |