CN203050614U - Well cementation valve core - Google Patents
Well cementation valve core Download PDFInfo
- Publication number
- CN203050614U CN203050614U CN 201320049007 CN201320049007U CN203050614U CN 203050614 U CN203050614 U CN 203050614U CN 201320049007 CN201320049007 CN 201320049007 CN 201320049007 U CN201320049007 U CN 201320049007U CN 203050614 U CN203050614 U CN 203050614U
- Authority
- CN
- China
- Prior art keywords
- well cementation
- valve core
- steel part
- rubber sleeve
- steel piece
- 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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- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
A well cementation valve core is an apparatus which is used in oil and gas drilling well cementation operation of oil and gas and overcomes the defects in the prior art. The well cementation valve core is composed of a sliding rod, a steel piece and a rubber sleeve in connection, wherein the sliding rod is integrally formed with the steel piece, the rubber sleeve is sleeved outside the steel piece and a semicircular groove is formed in the top of the steel piece.
Description
Technical field: the utility model relates to the device of petroleum gas in Drilling oil, gas well cementing operation, the spool of especially cementing the well.
Background technology: at present, the well cementation spool carries out well cementing operation after finishing under the protective casing in drillng operation, because original well cementation spool design was unreasonable, sliding bar and hemisphere all are metalworks, the phenomenon of fracture is arranged during use, thereby prolonged the activity duration.
Summary of the invention: the purpose of this utility model provides a kind of well cementation spool that should not rupture, it has overcome the shortcoming of original technology, the purpose of this utility model is to realize like this, it is to be formed by connecting by sliding bar, steel part, rubber sleeve, sliding bar and steel part are one, at the outside of steel part rubber sleeve; There is a half slot on the top of steel part.
Meaning of the present utility model: because the combination of rubber sleeve and steel part, spool face has elasticity, is convenient to operation, has both shortened the activity duration, has improved operating efficiency again, has also eliminated the drilling well hidden danger of bringing therefrom simultaneously.
Description of drawings: Fig. 1 is the structural representation of well cementation spool, among the figure 1, sliding bar 2, steel part 3, rubber sleeve 4, half slot
Five, the specific embodiment: embodiment 1, the utility model are to be formed by connecting by sliding bar 1, steel part 2, rubber sleeve 3, and sliding bar 1 is one with steel part 2, at the outside of steel part 2 rubber sleeve 3;
There is a half slot 4 on the top of embodiment 2, steel part 2.
Claims (2)
1. well cementation spool, it is to be formed by connecting by sliding bar (1), steel part (2), rubber sleeve (3), it is characterized in that: sliding bar (1) is one with steel part (2), at the outside rubber sleeve (3) of steel part (2).
2. well cementation spool according to claim 1, it is characterized in that: there is a half slot (4) on the top of steel part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049007 CN203050614U (en) | 2013-01-29 | 2013-01-29 | Well cementation valve core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320049007 CN203050614U (en) | 2013-01-29 | 2013-01-29 | Well cementation valve core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203050614U true CN203050614U (en) | 2013-07-10 |
Family
ID=48733579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320049007 Expired - Fee Related CN203050614U (en) | 2013-01-29 | 2013-01-29 | Well cementation valve core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203050614U (en) |
-
2013
- 2013-01-29 CN CN 201320049007 patent/CN203050614U/en not_active Expired - Fee Related
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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: 20130710 Termination date: 20140129 |