咪唑啉型复配缓蚀剂对20钢在高含CO2油田污水中缓蚀行为影响的研究

利用缓蚀剂成膜试验和失重试验研究了咪唑啉型复配缓蚀剂对20钢在高含CO2油田污水中的缓蚀行为.成膜试验结果表明,咪唑啉型缓蚀剂与TXP-10、乌洛托品、异丙醇复配后,大大提高了成膜的完整性.70℃和90℃时,咪唑啉酰胺和松香咪唑啉季铵盐缓蚀剂复配后,有利于提高缓蚀效率；120℃时,咪唑啉酰胺缓蚀剂分子分解,而松香咪唑啉...

An Investigation on the Influence of Compound Inbibitors Imidazeline on Inhibition Behavior of 20 Steel in CO_2-bearing Oil Field Waste Water

With inhibitors film test and weightloss test the influence of compound inhibitors imidazoline on the inhibition behavior of 20 steel in CO2bearing oil field waste water was invastigated.The film test results showed that blending imidazoline inhibitors with TXP-10,urotropin,and isopropanol could,improve the integrity of the film greatly,while weight loss test results showed that at 70℃ and 90℃ imidazoline amide with rosin imidazoline quaternary ammonium salt inhibitors helped to improve the efficiency of the inhibitor.At 120℃,imidazoline amide inhibitors molecules dissociated but the rosin imidazoline quaternary ammonium salt continueed to maintain good inhibition efficiency.At the three test temperature of 70℃,90℃ and 120℃,The TXP-10,urotropin and isopropanol as blends,maintained a stable inhibition efficiency.The coordinative work of rosin imidazoline quaternary ammonium salt and compound components can effectively reduce the risk of perforated metal corrosion.