CN204436276U - A kind of alloy and coating composite anti-corrosive tubing and casing - Google Patents
A kind of alloy and coating composite anti-corrosive tubing and casing Download PDFInfo
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- CN204436276U CN204436276U CN201520086863.5U CN201520086863U CN204436276U CN 204436276 U CN204436276 U CN 204436276U CN 201520086863 U CN201520086863 U CN 201520086863U CN 204436276 U CN204436276 U CN 204436276U
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- alloy
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Laminated Bodies (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to a kind of alloy and coating composite anti-corrosive tubing and casing.Mainly solve the problem that existing tubing and casing resistance to mechanical is impacted, machinery scratches poor performance and fragile anticorrosive coat.It is characterized in that: NiCr alloy-layer (3) is oozed in described body (1) two ends external surface induction, and center outer surface scribbles epoxy coating coating (2).This alloy and coating composite anti-corrosive tubing and casing two ends are subject to impact site and adopt NiCr alloy-layer, have the advantages that resistance to corrosion is strong, bond strength is high, resistance to mechanical is impacted, resistance to mechanical scuffing performance is high, middle part adopts epoxy coating coating, again reduces cost of production, enhances productivity.
Description
Technical field
The utility model relates to oilfield, specifically a kind of alloy and coating composite anti-corrosive tubing and casing.
Background technology
During oil recovery, employing oil pipe, sleeve pipe transmit, and oil pipe, sleeve pipe use for a long time in soil, there will be burn into perforated phenomenon, reduce the application life of oil pipe or sleeve pipe.Current oil field extensively adopts galvanized pipe, and the energy consumption of galvanized pipe manufacturing process is large, high material consumption, environment pollution are serious, and at some special corrosive environment, as sour corrosion environment does not have antisepsis; What also have is coated with epoxy coating on tubing and casing surface, painting epoxy coating cost is low, technique is simple, efficiency is high, it is little to pollute, but epoxy coating resistance to mechanical is impacted, resistance to mechanical scratches poor performance, when carrying and construct, anticorrosive coat can be damaged, have a strong impact on antiseptic effect, reduce the application life of oil pipe.
Summary of the invention
In order to the deficiency overcoming the impact of existing tubing and casing resistance to mechanical, machinery scratches poor performance and fragile anticorrosive coat, the utility model provides a kind of alloy and coating composite anti-corrosive tubing and casing, this alloy and coating composite anti-corrosive tubing and casing two ends are subject to impact site and adopt NiCr alloy-layer, have the advantages that resistance to corrosion is strong, bond strength is high, resistance to mechanical is impacted, resistance to mechanical scuffing performance is high, middle part adopts epoxy coating coating, again reduce cost of production, enhance productivity.
The technical solution of the utility model is: a kind of alloy and coating composite anti-corrosive tubing and casing, comprise body, and NiCr alloy-layer is oozed in described body two ends external surface induction, and center outer surface scribbles epoxy coating coating.
On described body, the length of NiCr alloy-layer is by pipe end 1 meter.
The utility model has following beneficial effect: owing to taking such scheme, the position that body two ends are vulnerable to mechanical shock adopts induction to ooze NiCr alloy-layer, and it is high that NiCr alloy-layer resistance to corrosion is strong, bond strength is high, resistance to mechanical is impacted, resistance to mechanical scratches performance; Body mid portion surface adopts epoxy coating coating, can ensure enough antiseptic effects, compared with adopting NiCr alloy-layer simultaneously, greatly reduce cost of production, enhance productivity, reduce environment pollution, and antiseptic property is good with full pipe.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1-body in figure, 2-epoxy coating coating, 3-NiCr alloy-layer.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, a kind of alloy and coating composite anti-corrosive tubing and casing, comprise body 1, and the length that described body 1 two ends external surface has induction to ooze Ni, Cr alloy-layer 3, NiCr alloy-layer 3 is by pipe end 1 meter.Tubing and casing only has within the scope of one meter, two ends and directly contacts with machine in work progress, be subject to mechanical shock only within the scope of one meter, end, therefore, only need ooze NiCr alloy-layer 3 often holding tubing and casing surface induction within the scope of a meter, this infiltration layer is class stainless steel layer, and it is high that resistance to corrosion is strong, bond strength is high, resistance to mechanical is impacted, resistance to mechanical scratches performance.Body 1 center outer surface scribbles epoxy coating coating 2, can ensure enough antiseptic effects, greatly reduce cost of production, enhance productivity, reduce environment pollution, and antiseptic property is good.
This alloy and coating composite anti-corrosive tubing and casing tool have the following advantages:
1, high energy consumption, high pollution problem that traditional oils sleeve pipe Integral alloy brings is improved when not affecting antiseptic property.
2, high, the easy enforcement of reliability of technology, production efficiency are high, favorable anti-corrosion effect.
3, on the basis of traditional anti-corrosion method, the advantage of alloying layer and epoxy coating is organically combined, achieve the innovation of anticorrosion structure.
4, under normal circumstances, in the alkaline soil environment of oil field, epoxy coating just can reach good antiseptic effect, but coating is subject to pipe wrench clamp cracky in construction operation process and transportation, pole is not resistance to collides with, this alloy and coating composite anti-corrosive tubing and casing solve this problem, turn avoid and increase considerably cost of production.
Claims (2)
1. alloy and a coating composite anti-corrosive tubing and casing, comprises body (1), it is characterized in that: NiCr alloy-layer (3) is oozed in described body (1) two ends external surface induction, and center outer surface scribbles epoxy coating coating (2).
2. alloy according to claim 1 and coating composite anti-corrosive tubing and casing, is characterized in that: the length of the upper NiCr alloy-layer (3) of described body (1) is by pipe end 1 meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086863.5U CN204436276U (en) | 2015-02-06 | 2015-02-06 | A kind of alloy and coating composite anti-corrosive tubing and casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520086863.5U CN204436276U (en) | 2015-02-06 | 2015-02-06 | A kind of alloy and coating composite anti-corrosive tubing and casing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204436276U true CN204436276U (en) | 2015-07-01 |
Family
ID=53604154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520086863.5U Active CN204436276U (en) | 2015-02-06 | 2015-02-06 | A kind of alloy and coating composite anti-corrosive tubing and casing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204436276U (en) |
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2015
- 2015-02-06 CN CN201520086863.5U patent/CN204436276U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170105 Address after: 163316 Daqing science and Technology Development Zone, Heilongjiang province high tech Industrial Park, building A1-2, room 503 Patentee after: Li Fujun Address before: The new business development zone in Daqing City, Heilongjiang Province, No. 2 163316 Patentee before: Daqing High-new District Beiyou Chuangye Technology Co.,Ltd. Patentee before: Northeast Petroleum University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230629 Address after: Building A8, No.5 Binhe Road, Didian Village, Qianhe Town, High tech Development Zone, Baoji City, Shaanxi Province, 721000 Patentee after: Baoji Kaishun Hailu Equipment Technology Co.,Ltd. Address before: 163316 room 503, building A1-2, kekegang, high tech Industrial Development Zone, Daqing City, Heilongjiang Province Patentee before: Li Fujun |