CN2616672Y - Oil-gas well cementation apparatus - Google Patents
Oil-gas well cementation apparatus Download PDFInfo
- Publication number
- CN2616672Y CN2616672Y CN 03234080 CN03234080U CN2616672Y CN 2616672 Y CN2616672 Y CN 2616672Y CN 03234080 CN03234080 CN 03234080 CN 03234080 U CN03234080 U CN 03234080U CN 2616672 Y CN2616672 Y CN 2616672Y
- Authority
- CN
- China
- Prior art keywords
- plug
- float collar
- gas well
- housing
- seat ring
- 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
The utility model provides an oil gas well cementation device, comprising a shell, a float collar and a rubber plug of seal housing in the shell. The utility model is characterized in that the rubber is arranged in the shell and sealed and locked on the float collar by the sealing and locking apparatus, therefore the quality of well cementation is guaranteed and well drilling cost is saved.
Description
Technical field
The utility model is relevant with the oil gas well cementing operation device.
Background technology
In oil gas well cementing operation, the cementing tool that each construction all will be used is float collar, plug and block ring.One of effect of float collar is to stop cement paste to flow backwards back in the sleeve pipe after cementing, the effect of plug is isolated water mud and a mud when cementing, avoid the two to mix, the effect of block ring is the descending distance of control plug, thus control cementing concrete plug face position.In the oil gas well cementing operation of reality, float collar can lose efficacy once in a while, if this thing happens, plug will be under the pressure differential effect of cement paste and mud in sleeve pipe the up block ring that leaves, make cementing concrete plug face be higher than design attitude, cause cementing quality defective.
The utility model content
The purpose of this utility model is in order to overcome above deficiency, to provide a kind of and can guarantee cementing quality, saving the oil gas well cementing operation device of drilling cost.
The purpose of this utility model is achieved like this:
The utility model oil gas well cementing operation device comprises float collar, the plug of the seal receptacle that contains housing, is positioned at housing, it is characterized in that plug is positioned at housing and fixes on the float collar by locking sealing mechanism dense block.
The seat ring that is connected with housing that places on the float collar seal receptacle is arranged in the above-mentioned locking sealing mechanism, place the sealing on the seat ring inner wall sealing groove, be embedded in the elastic locking circle in the seat ring lock slots, be positioned at the lock slots that cooperates with the elastic locking circle on the plug.
The block ring of using when the utility model is cancelled existing the well cementation, and on float collar and plug, set up the locking sealing mechanism, even reach also can not flow backwards back purpose in the sleeve pipe of float collar inefficacy cement paste, strict control cement plug face position, guarantee cementing quality, and can when cementing design, reduce the cement plug height, and go on foot the drilling out time in the drilling process down thereby reduce, save drilling cost.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the float collar structural representation.
Fig. 3 is the plug structural representation.
The specific embodiment
Referring to Fig. 1～Fig. 3, float collar 1 comprises housing 2, is positioned at the spring base 3 of housing 2, spring 4, ball sealer 5, seal receptacle 6.7 of plugs go in the housing and by locking sealing mechanism 8 dense blocks to fix in the float collar.Locking has the seat ring that is connected with housing 9 that places on the seal receptacle 6 in the sealing mechanism 8, places the sealing 11 on the seat ring seal groove 10, is embedded in the elastic locking circle 13 in the seat ring lock slots 12, has on the plug that to cooperate with the elastic locking circle be lock slots 14.
Claims (2)
1, oil gas well cementing operation device comprises the float collar of the seal receptacle that contains housing, is positioned at housing.Plug is characterized in that plug is positioned at housing and fixes on the float collar by locking sealing mechanism dense block.
2, oil gas well cementing operation device as claimed in claim 1, it is characterized in that locking the seat ring that is connected with housing that places on the float collar seal receptacle is arranged in the sealing mechanism, place the sealing on the seat ring inner wall sealing groove, be embedded in the elastic locking circle in the seat ring lock slots, be positioned at the lock slots that cooperates with the elastic locking circle on the plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234080 CN2616672Y (en) | 2003-04-23 | 2003-04-23 | Oil-gas well cementation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234080 CN2616672Y (en) | 2003-04-23 | 2003-04-23 | Oil-gas well cementation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2616672Y true CN2616672Y (en) | 2004-05-19 |
Family
ID=34248989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03234080 Expired - Fee Related CN2616672Y (en) | 2003-04-23 | 2003-04-23 | Oil-gas well cementation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2616672Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064949A (en) * | 2015-08-05 | 2015-11-18 | 中国石油集团川庆钻探工程有限公司 | Cement slurry backflow preventing device for drilling liner cementing |
| CN107143304A (en) * | 2017-06-19 | 2017-09-08 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Anti- plug floating float collar device and cementing method |
-
2003
- 2003-04-23 CN CN 03234080 patent/CN2616672Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064949A (en) * | 2015-08-05 | 2015-11-18 | 中国石油集团川庆钻探工程有限公司 | Cement slurry backflow preventing device for drilling liner cementing |
| CN105064949B (en) * | 2015-08-05 | 2017-12-26 | 中国石油集团川庆钻探工程有限公司 | Drilling liner cementing cement mortar back-flow preventer |
| CN107143304A (en) * | 2017-06-19 | 2017-09-08 | 中国石油集团川庆钻探工程有限公司长庆固井公司 | Anti- plug floating float collar device and cementing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |