Research Progress of Effects of Corrosion Scale on Corrosion Behavior of Petroleum Pipe

In actual service process, the inner walls of petroleum pipes are usually covered by corrosion products. The formation of corrosion scale is closely related to corrosion process, and the structure and properties of corrosion scale affect the corrosion behavior of petroleum pipe seriously. The formation mechanism of corrosion scale on petroleum pipes is reviewed, and the main factors affecting the formation of corrosion scale, the structure and properties of corrosion scale are highlighted. The protection measures for petroleum pipes are briefly described. Finally, the research direction of corrosion scale is prospected.