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在采油工业及石油化工生产中,金属设备的腐蚀是很普遍的现象.据统计,全世界每年因腐蚀而损失的金属约占总产量的10%以上.腐蚀带来的损失还不限于金属本身,在生产中由于金属腐蚀造成的停工、停产、跑漏现象,火灾、爆炸等恶性事故不但后果严重,而且也造成了严重的经济损失.据国外统计,化工设备事故中有一半以上是由腐蚀引起的.目前,由于在采油工业中引进CO_2驱油以增进采收率,加上油田注水采油过程中CO_2含量较高,注水系统的腐蚀十分严重.因此,金属设备的防腐问题日益受到重视.
In the oil industry and petrochemical production, the corrosion of metal equipment is very common phenomenon.According to statistics, the world every year due to corrosion of the metal loss accounted for about 10% of the total output.Corrosion damage is not limited to the metal itself , In the production due to metal corrosion caused by the shutdown, stop production, run-off phenomenon, fire, explosion and other serious accidents, not only serious consequences, but also caused serious economic losses.According to foreign statistics, more than half of chemical equipment accidents are caused by corrosion At present, due to the introduction of CO_2 flooding in the oil recovery industry to enhance oil recovery, coupled with the high CO 2 content during oilfield water injection, the corrosion of water injection system is very serious, therefore, the anti-corrosion of metal equipment is paid more and more attention.