Study of Corrosion the Gas and Oil Pipeline with TOEFLTest in RefineryCompany

Corrosion in oil and gas well have electrochemical mechanism. when this system reach to below dew point, this moisture transform to liquid and there are drops on tube wall. Water has electrolyte role in electrochemical reaction. Corrosion from long time ago was one of the biggest problems of gas and oil industry. Corrosion not only cause to high costs of repairs,but stopping production during repairing and safety matters cause to enormous loss.Creating plastic resistance cover inside tube is not proper approach for high pressure and temperature because polymer composition has not proper resistance. Use of corrosion resistance Alloys is not cost effective in wide scope and in gas oil industry only make vital place of this quality. Non – metal material use as composition material currently is common in gas industry and tube lines and fortunately internal company begin use of these tubes. These tubes not only have less weight but also sometimes have hardness and doesn t have earlier tube lines corrosion problem. These tubes are applied in fields that doesn’t have earlier tube lines corrosion problem. These tubes are applied in fields that doesn t use of them. Their quality is carbonic steel and we should offer others alternatives.