关键词: 油田, 污水, 缓蚀剂, 咪唑啉, 炔氧甲基胺, 合成, 复配

Abstract: Oilfield-produced water is characterized for high temperature, high salinity, and high gas content of hydrogen sulfide content or carbon dioxide. Pipelines and equipment are under serious corrosion and penetration. Conventional corrosion inhibitors, such as imidazoline corrosion inhibitor and amine inhibitor, are difficult to inhibit corrosion of the oilfield-produced water. There is an urgent need for high-efficiency corrosion inhibitor at production fields. Based on the corrosive properties of oilfield-produced water and the mechanism of inhibitors and optimization of molecular structural design, the high-efficiency corrosion inhibitor of the KYHS series was synthesized and compounded on the basis of the structure of two types of corrosion inhibitor ---imidazoline and alkynoxymethyl methyl amine. Application results showed that live hanging pieces inhibition rate was more than 99 percent, much better than otherproductsathome.Suitableforawiderangeofsewage,thisproductcanbeusedforthecomplexworkingconditionsofoilfields.

Key words: oilfield, sewage, corrosioninhibitor, imidazoline, alkynoxymethyl amine, synthesize, compound