Development of a New Sacrificial Anode Applied in Oil Well Environment
The underground temperature of thermal recovery wells is relatively high and the environmental medium is harsh.The performance of aluminum based sacrificial anodes with conventional formulas is poor under these conditions.It is necessary to develop new sacrificial anodes suitable for downhole high temperature corrosion environment.Based on the typical composition of Al-Zn-In series sacrificial anode materials,this paper optimizes the introduction of other metal elements to design sacrificial anode materials suitable for high temperature oil well environment.The constant current test,polarization curve and other electrochemical performance tests of the developed anode material were carried out in 80℃oil well produced liquid.By comparing and analyzing the open circuit potential,working potential,capacitance,current efficiency,surface corrosion morphology and other indicators,a high temperature resistant aluminum alloy sacrificial anode with the best comprehensive performance is selected.
oil wellsacrificial anodehigh temperature resistancealuminium alloyunderground
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维普
