Lubricant, wear-resistant and anti-corrosion graphene pipe and preparation process thereof

Abstract

The invention provides a lubricant, wear-resistant and anti-corrosion graphene pipe and a preparation process thereof and relates to the technical field of petroleum equipment. The pipe comprises an oil pipe, a lubricant, wear-resistant and anti-corrosion layer, an adhesive layer and a protecting layer, wherein the oil pipe is in a hollow cylindrical structure, the inner wall of the oil pipe is sprayed with the lubricant, wear-resistant and anti-corrosion layer, the adhesive layer and the protecting layer from outside to inside sequentially by a high-pressure gas-free spraying system in a hot-air curing manner. The lubricant, wear-resistant and anti-corrosion layer is made of lubricant, wear-resistant and anti-corrosion powder, and the thickness of the lubricant, wear-resistant and anti-corrosion layer is larger than 100um; the adhesive layer consists of an adhesive, and the thickness of adhesive layer is 120-260 mum; the protecting layer consists of graphene, and the thickness of the protecting layer is 0. 5-3.7 mum. The graphene lubricant, anti-wear and anti-corrosion pipe reduces conveying resistance to the oil pipe, and when the pipe is applied as a gas field well pipe is used to improve gas well productivity, reduce corrosion of inner wall of gas field pipeline, reduce the number of pigging and prolong service life of gas field pipeline.

Description

[0001] Technical field: [0002] The invention relates to the technical field of petroleum equipment, in particular to a graphene-lubricated wear-resistant and anti-corrosion pipe and a preparation process thereof. [0003] Background technique: [0004] With the increasing amount of oil and gas extraction and the maintenance work in the middle and late stages of oil fields, the corrosion protection of oil and gas pipelines has also received more and more attention. Oil production has entered a period of ultra-high water-cut production, and high salinity and highly corrosive sewage from chemical flooding are one of the main factors causing corrosion damage to pipeline equipment. CO 2 Exist in oil and gas reservoirs as components of oil, natural gas or formation water, using CO 2 When miscible technology enhances oil recovery, it will also remove CO 2 into the crude oil production system. CO 2 After being dissolved in water, its total acidity is higher than that of hydrochl...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a graphene lubricated, wear-resistant and anti-corrosion pipe and its preparation process, absorb the latest technical materials at home and abroad, and manufacture a graphene lubricated, wear-resistant and anti-corrosion pipe, which breaks through the technical conditions of the small-diameter solid coating of domestic oil pumping pipes limit, solve the problem of serious abrasion on the inner wall and surface of the pipe, and greatly increase the added value of the product

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