CN201443666U - Anti-corrosion anti-degradation nitriding polymer injection pipeline - Google Patents
Anti-corrosion anti-degradation nitriding polymer injection pipeline Download PDFInfo
- Publication number
- CN201443666U CN201443666U CN2009200262954U CN200920026295U CN201443666U CN 201443666 U CN201443666 U CN 201443666U CN 2009200262954 U CN2009200262954 U CN 2009200262954U CN 200920026295 U CN200920026295 U CN 200920026295U CN 201443666 U CN201443666 U CN 201443666U
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- Prior art keywords
- degradation
- nitriding
- corrosion
- wall
- injection pipeline
- 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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- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to an anti-corrosion anti-degradation nitriding polymer injection pipeline, which comprises a pipe body and a protective layer. Two anti-corrosive layers are respectively formed on the inner wall and the outer wall of the pipe body through the treatment of gas nitriding process, and the thickness of the anti-corrosive layers on the inner wall and the outer wall of the pipe body ranges from 40 micrometers to 100 micrometers. Compared with the prior art, the anti-corrosion anti-degradation nitriding polymer injection pipeline has the advantages of excellent corrosion resistance, polymer shear degradation resistance, simple structure and convenience for site construction.
Description
Technical field
The utility model relates to oil field oil recovery transferring polymer and uses the pipeline field, is that poly-pipeline line is annotated in a kind of anti-degraded nitrogenize against corrosion concretely.
Background technique
China's Petroleum Industry is attached great importance to research and the application that improves recovery efficiency technique, technique of polymer flooding has become a kind of comparatively mature technique, but, polymer has the quick property of salt for metal ion, very easily produce degraded, the result of degraded will cause the viscosity of polymer significantly to reduce, thereby reduction oil displacement efficiency, in order to prevent the polymer shear degradation, single well pipeline commonly used has in annotating poly-engineering at present: the plastic alloy composite pipe, Glass Steel Tube, anti-steel pipe is three kinds in common, anti-formula in the structure of these several pipelines is, be that the in-line wall is by heating, pressurization, adding anti-corrosion material forms and the diverse one deck anticorrosive coat of former tubing, as the plastic alloy layer, glassy layers etc. play degradation-resistant effect when carrying notes to gather liquid; And do not do any preservative treatment for the outer wall of pipeline, promptly outer wall and former tubing are identical.In these several using processs at the scene many fatal shortcomings are arranged all, easily come off, keep in repair as anticorrosive coat and recover difficulty, working life is short etc.
The model utility content
The purpose of this utility model is exactly the defective that exists at prior art, provides a kind of and has good corrosion stability, anti-polymer shear degradation, and be convenient to the poly-pipeline of against corrosion anti-degraded nitrogenize notes of site operation.
Its technological scheme is: body makes the inside and outside wall of body respectively form one deck anticorrosive coat by the gas nitriding process treating.
The thickness of anticorrosive coat is 40-100um on the inside and outside wall of described body.
The utility model has good corrosion stability, anti-polymer shear degradation compared with prior art, and simple in structure, is convenient to the advantage of site operation.
Description of drawings
Accompanying drawing is a kind of embodiment's a structural representation
Embodiment:
With reference to accompanying drawing, the utility model comprises body 1 and protective coating 2.By the gas nitriding process treating, make body 1 inside and outside wall respectively form one deck protective coating 2.The thickness of protective coating 2 is 40-100um on the body 1 inside and outside wall.
The utility model gas nitriding technology is: with body 1 behind the Shot Blasting inner and outer surface, pack in the nitriding furnace, under certain furnace pressure, temperature is in 560-700 ℃ stove, feed ammonia and other gas by a certain percentage, process gas decomposes makes nitrogen-atoms and other atom and steel form reaction, feeds nitrogen after processing a period of time, and insulation is come out of the stove and got final product.
Claims (2)
1. poly-pipeline is annotated in an anti-degraded nitrogenize against corrosion, it is characterized in that forming one deck anticorrosive coat respectively after the inside and outside wall of body is handled by nitriding process.
2. poly-pipeline is annotated in anti-degraded nitrogenize against corrosion according to claim 1, and it is characterized in that: the thickness of anticorrosive coat is 40-100um on the inside and outside wall of described body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200262954U CN201443666U (en) | 2009-05-27 | 2009-05-27 | Anti-corrosion anti-degradation nitriding polymer injection pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200262954U CN201443666U (en) | 2009-05-27 | 2009-05-27 | Anti-corrosion anti-degradation nitriding polymer injection pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443666U true CN201443666U (en) | 2010-04-28 |
Family
ID=42548346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200262954U Expired - Fee Related CN201443666U (en) | 2009-05-27 | 2009-05-27 | Anti-corrosion anti-degradation nitriding polymer injection pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443666U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453275A (en) * | 2012-06-01 | 2013-12-18 | 洪泽东俊机械有限公司 | Oil production spherical air dome and air dome material thereof |
-
2009
- 2009-05-27 CN CN2009200262954U patent/CN201443666U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453275A (en) * | 2012-06-01 | 2013-12-18 | 洪泽东俊机械有限公司 | Oil production spherical air dome and air dome material thereof |
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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: 20100428 Termination date: 20120527 |