CN109114317A - A kind of corrosion-resistant oil pipe - Google Patents
A kind of corrosion-resistant oil pipe Download PDFInfo
- Publication number
- CN109114317A CN109114317A CN201810947296.6A CN201810947296A CN109114317A CN 109114317 A CN109114317 A CN 109114317A CN 201810947296 A CN201810947296 A CN 201810947296A CN 109114317 A CN109114317 A CN 109114317A
- Authority
- CN
- China
- Prior art keywords
- corrosion
- oil pipe
- tube body
- connector
- resistant
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
- F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present invention relates to oil-gas field development oil-gas transportation or production pipeline fields, more particularly, to a kind of corrosion-resistant oil pipe.The present invention solves the problems, such as existing corrosion-resistant oil pipe higher cost.The corrosion-resistant oil pipe of the present invention, the connector including middle part tube body and both ends；Two connectors are fixed on the both ends of middle part tube body by friction welding mode；The inner-wall spraying anti-corrosion coating of the middle part tube body；The material of the connector at both ends uses corrosion resistant alloy.A kind of corrosion-resistant oil pipe of the present invention, spraying anti-corrosion coating, liner HDPE pipe greatly reduce production cost while guaranteeing leakproofness and intensity in common carbon steel oil pipe both ends friction welding corrosion resistant alloy connector, carbon steel oil pipe.
Description
Technical field
The present invention relates to oil-gas field development oil-gas transportation or production pipeline fields, more particularly, to a kind of corrosion-resistant oil pipe.
Background technique
Oil pipe is the channel of oil gas medium in oil-gas field development.Due to the complexity of oil gas field extraction medium, can usually make
At the corrosion of oil pipe, to solve etching problem, it is developed in the oil pipe of different materials, such as extraction medium and contains CO2When oil
Pipe just uses 13Cr material, produces and contains H in medium2825 nickel-bass alloy materials etc. are just used when S.These special materials are answered
With solving corrosion of the extraction medium to conventional carbon steel material, but the price of these materials is costly, increases oil gas field
Development cost.
Summary of the invention
To solve the problems, such as existing corrosion-resistant oil pipe higher cost, the present invention proposes a kind of corrosion-resistant oil pipe, common
Carbon steel oil pipe both ends friction welding corrosion resistant alloy connector, anti-corrosion coating is sprayed in carbon steel oil pipe, is guaranteeing leakproofness and intensity
While, greatly reduce production cost.
Technical proposal that the invention solves the above-mentioned problems is that a kind of corrosion-resistant oil pipe is characterized in that including middle part
The connector of tube body and its both ends；
Two connectors are fixed on the both ends of middle part tube body by friction welding mode；
The inner-wall spraying anti-corrosion coating of the middle part tube body；The material of the connector at both ends uses corrosion resistant alloy.
The above are basic structures of the invention, are based on the basic structure, and the present invention also makes following Optimal improvements:
Further, above-mentioned corrosion resistant alloy is that 825 nickel-base alloys, 625 nickel-base alloys, 13CR stainless steel or 2205 are stainless
Steel.
Further, above-mentioned anti-corrosion coating is epoxy powder coating.
Further, above-mentioned middle part tube body is lined with HDPE pipe, and HDPE pipe is high density polyethylene pipe.
Further, the connector at above-mentioned both ends is pin thread.
Further, the connector at above-mentioned both ends is female thread.
Further, the connector at above-mentioned both ends one of them be pin thread, another is female thread.
Advantages of the present invention:
A kind of corrosion-resistant oil pipe of the present invention, in common carbon steel oil pipe both ends friction welding corrosion resistant alloy connector, carbon steel
Anti-corrosion coating is sprayed in oil pipe, while guaranteeing leakproofness and intensity, greatly reduces production cost；Spraying in carbon steel oil pipe
Liner HDPE is managed again after anti-corrosion coating, forms the protection to tube inner wall anti-corrosion coating, it is made to be not easy to be worn.
Detailed description of the invention
Fig. 1 is one embodiment of the present of invention structure chart；
Fig. 2 is another embodiment of the present invention structure chart.
Wherein, tube body in the middle part of 1-；2- connector；3- anti-corrosion coating；4-HDPE pipe.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
A kind of corrosion-resistant oil pipe, the connector 2 including middle part tube body 1 He its both ends；Two connectors 2 pass through friction welding mode
It is fixed on the both ends of middle part tube body 1；The inner-wall spraying anti-corrosion coating 3 of the middle part tube body 1, anti-corrosion coating 3 make entire oil pipe, especially
It is that carbon steel tubing section obtains good corrosion resistance；The material of two end connectors 2 uses corrosion resistant alloy, and corrosion resistant alloy acts on
The corrosion resistance of pipe end is obtained simultaneously in guarantee leakproofness.
The corrosion resistant alloy is 825 nickel-base alloys, 625 nickel-base alloys, 13CR stainless steel or 2205 stainless steels.Anti-corrosion coating
3 be epoxy powder coating.
The middle part tube body 1 can also be lined with HDPE pipe 4, and liner HDPE pipe can increase the wearability of tube inner wall, shape
The protection of pairs of tube inner wall spraying anti-corrosion coating, is not easy to make its abrasion.
Embodiment one:
Referring to Fig. 1, a kind of corrosion-resistant oil pipe, the connector 2 including middle part tube body 1 He its both ends；Middle part tube body 1 is carbon steel material
Matter, the material of the connector 2 at both ends use corrosion resistant alloy, and corrosion resistant alloy is 825 nickel-base alloys.Two connectors 2 pass through friction welding
Mode is fixed on the both ends of middle part tube body 1；The inner-wall spraying anti-corrosion coating 3 of the middle part tube body 1 and it is lined with HDPE pipe 4, it is resistance to
Erosion resisting coating 3 is epoxy powder coating；The connector 2 at both ends is pin thread.
Embodiment two:
Referring to fig. 2, a kind of corrosion-resistant oil pipe, the connector 2 including middle part tube body 1 He its both ends；Middle part tube body 1 is carbon steel material
Matter, the material of the connector 2 at both ends use corrosion resistant alloy, and corrosion resistant alloy is 625 nickel-base alloys.Two connectors 2 pass through friction welding
Mode is fixed on the both ends of middle part tube body 1；The inner-wall spraying epoxy powder coating of the middle part tube body 1 and it is lined with HDPE pipe 4,
One of them is pin thread to the connector 2 at both ends, another is female thread.
Embodiment three:
A kind of corrosion-resistant oil pipe (not shown), the connector 2 including middle part tube body 1 He its both ends；Middle part tube body 1 is carbon
Steel material, the material of the connector 2 at both ends use corrosion resistant alloy, and corrosion resistant alloy is 13CR stainless steel.Two connectors 2 pass through friction welding (FW)
The mode of connecing is fixed on the both ends of middle part tube body 1；The inner-wall spraying epoxy powder coating of the middle part tube body 1 and be lined with HDPE pipe
4, the connector 2 at both ends is female thread.
The present invention is described in detail above by specific and preferred embodiment, but those skilled in the art should be bright
White, the present invention is not limit to that embodiments describe above, all within the spirits and principles of the present invention, made any modification,
Equivalent replacement etc., should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of corrosion-resistant oil pipe, it is characterised in that: two connectors (2) including middle part tube body (1) and its both ends；
Two connectors (2) are fixed on the both ends of middle part tube body (1) by friction welding mode；
The inner-wall spraying anti-corrosion coating (3) of the middle part tube body (1)；The material of two connectors (2) uses corrosion resistant alloy.
2. a kind of corrosion-resistant oil pipe according to claim 1, it is characterised in that: the corrosion resistant alloy be 825 nickel-base alloys,
625 nickel-base alloys, 13CR stainless steel or 2205 stainless steels.
3. a kind of corrosion-resistant oil pipe according to claim 2, it is characterised in that: the anti-corrosion coating (3) is epoxy powder
Coating.
4. a kind of corrosion-resistant oil pipe according to claim 1 to 3, it is characterised in that: middle part tube body (1) liner
There is HDPE to manage (4).
5. a kind of corrosion-resistant oil pipe according to claim 4, it is characterised in that: the connector (2) at both ends is pin thread.
6. a kind of corrosion-resistant oil pipe according to claim 4, it is characterised in that: the connector (2) at both ends is female thread.
7. a kind of corrosion-resistant oil pipe according to claim 4, it is characterised in that: the connector (2) at both ends one of them for public affairs
Button, another is female thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810947296.6A CN109114317A (en) | 2018-08-20 | 2018-08-20 | A kind of corrosion-resistant oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810947296.6A CN109114317A (en) | 2018-08-20 | 2018-08-20 | A kind of corrosion-resistant oil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109114317A true CN109114317A (en) | 2019-01-01 |
Family
ID=64852834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810947296.6A Pending CN109114317A (en) | 2018-08-20 | 2018-08-20 | A kind of corrosion-resistant oil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109114317A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026583A (en) * | 1975-04-28 | 1977-05-31 | Hydril Company | Stainless steel liner in oil well pipe |
| CN201069021Y (en) * | 2007-08-20 | 2008-06-04 | 张志民 | PE-PPPE-PP enhanced anti-corrosion abrasion-proof composite oil conduit |
| CN201348118Y (en) * | 2009-01-19 | 2009-11-18 | 江苏双达泵阀集团有限公司 | Acid-resistant pipeline |
| CN201496004U (en) * | 2009-08-20 | 2010-06-02 | 四川华工石油钢管有限责任公司 | Joint for composite oil pipes or casings |
| CN203023743U (en) * | 2013-01-30 | 2013-06-26 | 赵森龙 | Composite pipe with corrosion-resistant alloy joint |
| CN206016690U (en) * | 2016-07-22 | 2017-03-15 | 陈江波 | A kind of oil exploitation heat-insulation and heat-preservation composite bushing |
-
2018
- 2018-08-20 CN CN201810947296.6A patent/CN109114317A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4026583A (en) * | 1975-04-28 | 1977-05-31 | Hydril Company | Stainless steel liner in oil well pipe |
| CN201069021Y (en) * | 2007-08-20 | 2008-06-04 | 张志民 | PE-PPPE-PP enhanced anti-corrosion abrasion-proof composite oil conduit |
| CN201348118Y (en) * | 2009-01-19 | 2009-11-18 | 江苏双达泵阀集团有限公司 | Acid-resistant pipeline |
| CN201496004U (en) * | 2009-08-20 | 2010-06-02 | 四川华工石油钢管有限责任公司 | Joint for composite oil pipes or casings |
| CN203023743U (en) * | 2013-01-30 | 2013-06-26 | 赵森龙 | Composite pipe with corrosion-resistant alloy joint |
| CN206016690U (en) * | 2016-07-22 | 2017-03-15 | 陈江波 | A kind of oil exploitation heat-insulation and heat-preservation composite bushing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190101 |
|
| RJ01 | Rejection of invention patent application after publication |