CN2651437Y - Rough-faced well cementing casing pipe - Google Patents
Rough-faced well cementing casing pipe Download PDFInfo
- Publication number
- CN2651437Y CN2651437Y CN 03284516 CN03284516U CN2651437Y CN 2651437 Y CN2651437 Y CN 2651437Y CN 03284516 CN03284516 CN 03284516 CN 03284516 U CN03284516 U CN 03284516U CN 2651437 Y CN2651437 Y CN 2651437Y
- Authority
- CN
- China
- Prior art keywords
- bushing
- cementing
- well
- sleeve pipe
- utility
- 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
A roughing well cementation bushing used for oil field oil (water) well cementing is provided, which is characterized in that: the utility model utilizes special made mould to roll with tracery, screw thread, groove or other roughing surface on outer surface when producing the bushing, which resolves the problems that the common bushing and the cement ring have poor cementing strength and the bushing is easily damaged to affect the quality of the cementing. The busing of the utility model can prolong the bushing's service life, which can be widely used in oil field oil (water) well cementing operation.
Description
Technical field:
The utility model relates to " a kind of exasperate well cementation sleeve pipe " of a kind of oil field oil (water) well well cementation usefulness.
Background technology:
The used bushing outer surface of oil field oil (water) well all is smooth at present, in the process of going into the well, reduce frictional resistance like this, but so often bring cementing quality bad, sleeve pipe damages easily, even influencing the oil well life-span, the utility model can strengthen the cementing strength of sleeve pipe and cement, reduce sleeve pipe and damage, prolong the oil well life-span.
The utility model content:
In order to overcome existing sleeve surface is smooth, fixed bad between cement and the sleeve pipe, particularly different with the coefficient of expansion of cement and ground interlayer for the thermal production well steel pipe, therefore, can cause the play between sleeve pipe and the cement sheath when annotating vapour.Thereby cause that sleeve pipe damages, the utility model provides " a kind of exasperate well cementation cover ", the cementing strength height of this sleeve pipe through between test casing and cement sheath, and can alleviate the damaged condition of sleeve pipe.
The technical scheme that its technical problem that solves the utility model adopts is: utilize special mould when production casing, not influencing under the intensity situation of sleeve pipe own, sleeve surface is rolled out decorative pattern, screw thread, groove or make bushing outer surface coarse with additive method.When utilizing this cased hole completion,, carry out cementing well again as long as ordinary casing G.I.H design attitude.
The beneficial effects of the utility model are, utilize this casing cementing, increase the cementing strength between sleeve pipe and the cement, improve cementing quality, reduce sleeve pipe and damage, and prolong the cover tube lifetime, reduce workover cost, prolong the oil well life-span.
Description of drawings:
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model overall structure schematic diagram.
Among the figure 1, sleeve body, 2, casing coupling, 3, rough surface.
The specific embodiment:
In Fig. 1, the well cementation sleeve pipe is made of sleeve body 1 and casing coupling 2 screwed connections, utilizes special mould that the external surface of sleeve body 1 is rolled out the rough surface 3 of decorative pattern, screw thread, groove when production casing, again with casing coupling 2 screwed connections; The external surface of sleeve body 1 also can roll out the rough surface of other pattern; The surface rolling of casing coupling 2 becomes rough surface.
Claims (2)
1, a kind of exasperate well cementation sleeve pipe is characterized in that: the external surface of sleeve body (1) is rolled out the rough surface (3) of decorative pattern, screw thread, groove, again with casing coupling (2) screwed connection.
2, a kind of exasperate well cementation sleeve pipe according to claim 1, it is characterized in that: the external surface of sleeve body (1) also can roll out the rough surface of other pattern; The surface rolling of casing coupling (2) becomes rough surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03284516 CN2651437Y (en) | 2003-07-26 | 2003-07-26 | Rough-faced well cementing casing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03284516 CN2651437Y (en) | 2003-07-26 | 2003-07-26 | Rough-faced well cementing casing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2651437Y true CN2651437Y (en) | 2004-10-27 |
Family
ID=34332889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03284516 Expired - Fee Related CN2651437Y (en) | 2003-07-26 | 2003-07-26 | Rough-faced well cementing casing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2651437Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536202A (en) * | 2012-03-12 | 2012-07-04 | 中国石油大学(华东) | Test piece for testing gas storage well completion sleeve-cement ring bonding strength and method for manufacturing test piece |
-
2003
- 2003-07-26 CN CN 03284516 patent/CN2651437Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536202A (en) * | 2012-03-12 | 2012-07-04 | 中国石油大学(华东) | Test piece for testing gas storage well completion sleeve-cement ring bonding strength and method for manufacturing test piece |
| CN102536202B (en) * | 2012-03-12 | 2012-12-05 | 中国石油大学(华东) | Method for manufacturing test piece for testing gas storage well completion sleeve-cement ring bonding strength |
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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 |