ANALYSIS OF CORROSION CASE OF THE FERRULE OF HEAT INSULATION TUBE FOR THE OIL WELL
油井注蒸汽解堵隔热管接箍的腐蚀调查与原因分析

The ferrule of heat insulation tube was seriously corroded in short time under the conditions of injecting steam into the oil well. Through field investigation and test analysis, the corrosion cause may be attributed to the incidental leak of some chemicals. Some measures of protection are proposed.