CN202731763U - Special corrosion-resistant oil tube for oil fields - Google Patents
Special corrosion-resistant oil tube for oil fields Download PDFInfo
- Publication number
- CN202731763U CN202731763U CN 201220409371 CN201220409371U CN202731763U CN 202731763 U CN202731763 U CN 202731763U CN 201220409371 CN201220409371 CN 201220409371 CN 201220409371 U CN201220409371 U CN 201220409371U CN 202731763 U CN202731763 U CN 202731763U
- Authority
- CN
- China
- Prior art keywords
- corrosion
- oil
- resistant
- tube
- coating
- 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 - Lifetime
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 19
- 230000007797 corrosion Effects 0.000 title abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 239000010936 titanium Substances 0.000 claims abstract description 12
- 229920000642 polymer Polymers 0.000 claims abstract description 9
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 abstract description 7
- 239000004593 Epoxy Substances 0.000 abstract description 6
- 238000002347 injection Methods 0.000 abstract description 6
- 239000007924 injection Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 230000002421 anti-septic effect Effects 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 229910017135 Fe—O Inorganic materials 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 150000002118 epoxides Chemical class 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 208000017667 Chronic Disease Diseases 0.000 description 1
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000003260 anti-sepsis Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
Images
Landscapes
- Laminated Bodies (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to the field of metal pipe fittings, in particular to a special corrosion-resistant oil tube for oil fields, which is suitable for a water injection well for the oil fields and aims to provide the special corrosion-resistant oil tube for the oil fields, which is high in corrosion resistance and scaling resistance and convenient for on-site construction in order to solve the defects existing in the prior art by combining the characteristics of nano-titanium polymer coating and epoxy powder coating. According to the technical scheme, a corrosion-resistant layer is coated on the inner wall of a tube body. The corrosion-resistant layer being a nano-titanium polymer coating is not smaller than 100 micrometer in thickness. The corrosion-resistant layer being an epoxy powder coating is not smaller than 200 micrometer in thickness.
Description
Technical field
The utility model relates to the metal tube field, is specially adapted to a kind of oil field special anti-corrosion oil pipe of water injection well in oil fields.
Background technology
Along with China's oilfield exploitation time increases, injection water quality constantly worsens, and the oxide sulfate reducing bacteria increases gradually, causes thus pipe string of oil field downhole heavy corrosion, fouling to become " chronic disease " that perplexs water injection well.Investigation to China Central Plains, Shengli Oil Field finds that these two oil fields reach respectively 1.4 hundred million yuan, 300,000,000 yuan owing to corrode the tubing string, the piping material expense direct economic loss that cause; Owing to change tubing string, pipeline impact production, cause indirect economic loss to reach about 1,000,000,000 yuan.The corrosion and scaling illness is not removed, and not only is difficult to reduce cost, the construction of Customers ' Legal Right water injection well yet.
Research finds that nm-class Ti polymer paint and epoxide powder coating have superior antiseptic property.The chemical bonding of nm-class Ti polymer and chemisorption make coating have excellent antiseptic property, also have antistaticly, and impermeabilisation waits by force unique advantage.Epoxy powder can form the Fe-O key by the epoxy radicals in the epoxy resin and the iron in the iron pipe, makes coating firmly be attached to the surface of tube inner wall, reaches the corrosion-resistant effect; Its coating machine function admirable, electrical insulation properties and chemical stability are good, and smooth surface is smooth.
The utility model content
The purpose of this utility model is exactly the defective that exists for prior art, in conjunction with the characteristic of nm-class Ti polymer paint and epoxide powder coating, provides a kind of and has good corrosion stability, good antiscale property, and be convenient to the oil field special anti-corrosion oil pipe of site operation.
Its technical scheme is: the inwall at body is coated with anticorrosive coat.
Described anticorrosive coat is the nano-titanium polymer coating, and the thickness of anticorrosive coat is not less than 100 μ m.
Described anticorrosive coat is FBE, and the thickness of anticorrosive coat is not less than 200 μ m.
The utility model is by anticorrosive coating in filling pipe, anti-corrosive properties and the application life of greatly having improved the water injection well oil pipe.Wherein: adopt nm-class Ti polymer paint to be coated in tube inner wall and form anticorrosive coat, the titanium that itself is just had superior antiseptic property is fully played in coating, the chemical bonding of nm-class Ti polymer and chemisorption make coating have excellent antiseptic property, thereby have greatly prolonged the application life of antisepsis oil pipe.This product is compared with other aseptic productions also to have antistaticly, and impermeabilisation waits by force unique advantage.The characteristics such as anticorrosion, the antiscale that relies on that spraying oil pipe itself has in the advantage of these two uniquenesses and the titanium nanometer obtain using at each elephant, and prospect is very wide.The FBE oil pipe forms the Fe-O key by the epoxy radicals in the epoxy resin and the iron in the iron pipe, make coating firmly be attached to the surface of tube inner wall, reach the corrosion-resistant effect, a kind of not only economy but also the product that good antiseptic property is arranged, its coating machine function admirable, electrical insulation properties and chemical stability are good, and smooth surface is smooth.Through its favorable anti-corrosion effect of field trial, long service life, fouling is poor, has good using value.
Description of drawings
Accompanying drawing is the structural representation of a kind of embodiment
The specific embodiment:
With reference to accompanying drawing, the utility model comprises the anticorrosive coat 2 that body 1 and body 1 inwall form.
One of the utility model embodiment, the epoxy powder spraying coating process is: with body 1 behind the Shot Blasting inner surface, implement spray treatment, then pass through intermediate frequency heating, temperature is at 180-230 ℃, after a series of cross-linking reactions such as the powder process gel after the spraying, curing, forming thickness is the fine and close anticorrosive coat of 220 μ m.
Two of the utility model embodiment, nano-titanium polymeric liquid spraying coating process is: with body 1 behind the Shot Blasting inner surface, implement spray treatment, then enter heating in the heating furnace, temperature is in 70-100 ℃ stove, behind the tubing internal coating curing cross-linking reaction after the spraying, forming thickness is the fine and close anticorrosive coat of 120 μ m.
Claims (3)
1. an oil field special anti-corrosion oil pipe is characterized in that being coated with anticorrosive coat at the inwall of body.
2. oil field according to claim 1 special anti-corrosion oil pipe is characterized in that described anticorrosive coat is the nano-titanium polymer coating, and the thickness of anticorrosive coat is not less than 100 μ m.
3. oil field according to claim 1 special anti-corrosion oil pipe is characterized in that described anticorrosive coat is FBE, and the thickness of anticorrosive coat is not less than 200 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409371 CN202731763U (en) | 2012-08-17 | 2012-08-17 | Special corrosion-resistant oil tube for oil fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220409371 CN202731763U (en) | 2012-08-17 | 2012-08-17 | Special corrosion-resistant oil tube for oil fields |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202731763U true CN202731763U (en) | 2013-02-13 |
Family
ID=47657475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220409371 Expired - Lifetime CN202731763U (en) | 2012-08-17 | 2012-08-17 | Special corrosion-resistant oil tube for oil fields |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202731763U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275601A (en) * | 2013-05-28 | 2013-09-04 | 胜利油田金岛实业有限责任公司 | Nano titanium polymer inner wall anticorrosion oil pipe |
| CN104497789A (en) * | 2014-12-15 | 2015-04-08 | 江苏长源油气管件防腐有限公司 | Anticorrosion oil pipe |
| CN109519130A (en) * | 2018-10-23 | 2019-03-26 | 东营市聚智石油技术服务有限公司 | A kind of oil pipe with multielement rare earth macromolecular antiseptic coating |
| CN112145825A (en) * | 2020-09-07 | 2020-12-29 | 席赫 | Oil pipe for oil exploitation |
-
2012
- 2012-08-17 CN CN 201220409371 patent/CN202731763U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103275601A (en) * | 2013-05-28 | 2013-09-04 | 胜利油田金岛实业有限责任公司 | Nano titanium polymer inner wall anticorrosion oil pipe |
| CN103275601B (en) * | 2013-05-28 | 2015-07-08 | 胜利油田金岛实业有限责任公司 | Nano titanium polymer inner wall anticorrosion oil pipe |
| CN104497789A (en) * | 2014-12-15 | 2015-04-08 | 江苏长源油气管件防腐有限公司 | Anticorrosion oil pipe |
| CN109519130A (en) * | 2018-10-23 | 2019-03-26 | 东营市聚智石油技术服务有限公司 | A kind of oil pipe with multielement rare earth macromolecular antiseptic coating |
| CN112145825A (en) * | 2020-09-07 | 2020-12-29 | 席赫 | Oil pipe for oil exploitation |
| CN112145825B (en) * | 2020-09-07 | 2021-06-15 | 大庆市华禹石油机械制造有限公司 | Oil pipe for oil exploitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |
|
| CX01 | Expiry of patent term |