CN201739648U

CN201739648U - Nano-coating anti-corrosion pipe

Info

Publication number: CN201739648U
Application number: CN201020255618XU
Authority: CN
Inventors: 蔡桂华
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-07-06
Filing date: 2010-07-06
Publication date: 2011-02-09
Anticipated expiration: 2020-07-06

Abstract

The utility model discloses a nano-coating anti-corrosion pipe, comprising a pipe body, a multi-element iron aluminum alloy layer and a pure alloy layer. The inner and outer walls of the pipe body are plated with the multi-element iron aluminum alloy layer. An arc surface on which the multi-element iron aluminum alloy layer is far away from the pipe body is provided with the pure alloy layer. The pure alloy layer, as the inner wall or outer wall of the anti-corrosion pipe, is further provided with a nano-polymer coating. The anti-corrosion pipe not only has good corrosion resistance, large binding force, good mechanical property, aging resistance, but also has the advantages of paraffin control and fouling prevention.

Description

The nano coating anti-corrosion pipe

Technical field:

The utility model relates to oil recovery field, oil field used a kind of oil pipe or sleeve pipe, belongs to a kind of nanometer coating pipe that is used for oil gas field.

Background technique:

Adopt oil pipe or sleeve pipe to come liquid is transported during oil recovery, oil pipe or sleeve pipe burn into perforation phenomenon can occur in long-term use, cause oil pipe or sleeve pipe not to reach and promptly can not re-use service life.And on-the-spot present applied tubing and casing anti-corrosion method is surperficial separation layer method, can only play the effect of temporary transient isolation environment aggressive medium, prolongation along with service time, anticorrosive coat then begins to occur the gas-bearing formation obscission, cause the aggravation of oil pipe or casing corrosion, surperficial separation layer is mainly the epoxy resin type coating simultaneously, there is the water absorption rate height in these epoxy resin type coatings, anti-mechanical shock, anti-machinery scratches the problem of poor performance, anticorrosive coat can damage when construction and carrying, have a strong impact on antiseptic effect, reduced the working life of oil pipe, and the wax control of these separation layers, anti-scaling property is poor, causes the tubing and casing wax deposition, scale formation is serious, shorten the maintenance interval of tubing and casing, cause suitable economic loss.

Summary of the invention:

In order to overcome short deficiency of existing oil pipe or casing tube anti-corrosive, wax control, antiscaling effect difference and working life, the utility model provides a kind of nano coating anti-corrosion pipe, this anti-corrosion pipe not only has excellent corrosion resisting performance, big, the good mechanical property, anti-aging of combination force, but also has the advantage of strong wax-proof anti-scaling.

Technical solution adopted in the utility model is: the nano coating anti-corrosion pipe, comprise tube body, iron aluminium multicomponent alloy layer, pure alloy-layer, described tube body inside and outside wall is coated with iron aluminium multicomponent alloy layer, described iron aluminium multicomponent alloy layer is provided with pure alloy-layer away from the arc surface of tube body, and described pure alloy-layer also is provided with the nanometer polymer coating as the inwall or the outer wall of anti-corrosion pipe.

The thickness of described nanometer polymer coating is 90～120 μ m.

The beneficial effects of the utility model are: the multicomponent alloy layer of this nano coating anti-corrosion pipe has the stainless steel characteristic, forms the metallurgical chemistry combination between coating or plating layer, strong adhesion, and have the anode loss protection effect, have higher mechanical strength and corrosion resistance; Simultaneously, anti-corrosion pipe is purified again, carry out the poly-coating rotary spraying of nanometer; This tube surfaces light, smooth, free of pinholes, non-scaling, not sticking oil; But dielectric corrosions such as acid-and base-resisting, salt, surface active agent, sewage, rock gas, microorganism; Have anticorrosion, antiscale, wax control and anti-delamination four anti-characteristics.

Description of drawings:

Accompanying drawing 1 is the utility model embodiment one a structure sectional view;

Accompanying drawing 2 is structure sectional views of the utility model embodiment two.

Sequence number among the figure: 1, tube body, 2, iron aluminium multicomponent alloy layer, 3, pure alloy-layer, 4, the nanometer polymer coating.

Embodiment:

Below in conjunction with accompanying drawing will the utility model is described in further detail:

Embodiment one: by shown in Figure 1, a kind of nano coating anti-corrosion pipe, comprise tube body 1, iron aluminium multicomponent alloy layer 2, pure alloy-layer 3, described tube body 1 inside and outside wall is coated with iron aluminium multicomponent alloy layer 2, described iron aluminium multicomponent alloy layer 2 is provided with pure alloy-layer 3 away from the arc surface of tube body 1, described pure alloy-layer 3 also is provided with nanometer polymer coating 4 as the inner and outer wall of anti-corrosion pipe, and the thickness of described nanometer polymer coating 4 is 90～120 μ m.

Embodiment two: by shown in Figure 2, a kind of nano coating anti-corrosion pipe, comprise tube body 1, iron aluminium multicomponent alloy layer 2, pure alloy-layer 3, described tube body 1 inside and outside wall is coated with iron aluminium multicomponent alloy layer 2, described iron aluminium multicomponent alloy layer 2 is provided with pure alloy-layer 3 away from the arc surface of tube body 1, described pure alloy-layer 3 also is provided with nanometer polymer coating 4 as the inwall of anti-corrosion pipe, and the thickness of described nanometer polymer coating 4 is 90～120 μ m.

This nano coating anti-corrosion pipe has good corrosion resistance, and can guarantee the construction, the transportation process outer surface not aliquation, do not come off; Be mainly used in poly-displacement of reservoir oil well, ternary displacement of reservoir oil well, injection gas displacement gas well, deep-etching, strong fouling well, serious waxing in production well, gas well and CO2 and inject extraction well etc.

Claims

1. nano coating anti-corrosion pipe, comprise tube body (1), iron aluminium multicomponent alloy layer (2), pure alloy-layer (3), described tube body (1) inside and outside wall is coated with iron aluminium multicomponent alloy layer (2), described iron aluminium multicomponent alloy layer (2) is provided with pure alloy-layer (3) away from the arc surface of tube body (1), it is characterized in that: described pure alloy-layer (3) also is provided with nanometer polymer coating (4) as the inwall or the outer wall of anti-corrosion pipe.

2. nano coating anti-corrosion pipe according to claim 1 is characterized in that: the thickness of described nanometer polymer coating (4) is 90～120 μ m.