Anticorrosion pipe provided with alloy layers

A technology of alloy layer and anti-corrosion pipe, which is applied in pipeline anti-corrosion/rust protection, drill pipe, casing, etc. It can solve the problems of poor anti-scaling effect and short service life, and achieve strong adhesion, high mechanical strength and durability erosive effect

A technology of alloy layer and anti-corrosion pipe, which is applied in pipeline anti-corrosion/rust protection, drill pipe, casing, etc. It can solve the problems of poor anti-scaling effect and short service life, and achieve strong adhesion, high mechanical strength and durability erosive effect

CN102312656AInactive Publication Date: 2012-01-11蔡桂华
0 Cites 2 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Anticorrosion pipe provided with alloy layers
  • Anticorrosion pipe provided with alloy layers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] The present invention will be further explained below in conjunction with the drawings:

[0010] by figure 1 As shown, an anticorrosive pipe provided with an alloy layer includes a pipe body 1, the inner and outer walls of the pipe body 1 are plated with an iron-aluminum multi-element alloy layer 2, and the iron-aluminum multi-element alloy layer 2 is away from the circle of the pipe body 1. The arc surface is provided with a pure alloy layer 3, and the thickness of the iron-aluminum multi-element alloy layer 2 is 80-120 μm.

[0011] The tubing or casing has good corrosion resistance and can ensure that the outer surface will not be layered or fall off during construction and transportation; it is mainly used in polymer flooding oil wells, ternary oil flooding wells, gas flooding oil and gas wells, and strong Corrosion, strong fouling water wells, heavy waxing oil wells, natural gas wells and CO2 injection and production wells, etc.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses an anticorrosion pipe provided with alloy layers. The anticorrosion pipe comprises a pipe body, wherein a Fe-Al multielement alloy layer is respectively coated on the inner wall and the outer wall of the pipe body, and a circular-arc surface of the Fe-Al multielement alloy layer, which is away from the pipe body, is provided with a pure alloy layer. The anticorrosion pipe not only has favorable anticorrosion performance, large bonding force, good mechanical property and ageing resistance, but also has the advantages of strongly preventing wax and scale.

Description

Technical field: [0001] The invention relates to an oil pipe or casing used in the field of oil extraction, in particular to an anticorrosive pipe provided with an alloy layer. Background technique: [0002] Oil pipes or casing pipes are used to transport liquids during oil production. If the oil pipes are used for a long time, corrosion and perforation will occur, causing the oil pipes or casing pipes to be unusable before their service life. The anti-corrosion methods of tubing or casing used in the prior art are all surface isolation layer methods, which can only temporarily isolate the corrosive medium in the environment. With the extension of use time, the anti-corrosion layer begins to fall off the gas layer, causing the tubing Or casing corrosion is intensified, and the surface isolation layer is mainly epoxy resin coating. These epoxy resin coatings have the problems of high water absorption, poor mechanical shock resistance and mechanical scratch resistance, and they are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
11 Jan 2012
Publication
CN102312656A
IPC
E21B17/00; F16L58/08
Inventors
蔡桂华