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前言近年来,在油气井酸化作业中,由于高浓度盐酸(28％)的普遍采用以及超深井的出现,要求有150℃或更高温度下使用的高浓度盐酸缓蚀剂。然而在高浓度盐酸,特别是在高温条件下,不但会增加酸和金属之间的反应速度,而且往往引起酸溶液的破坏或有机缓蚀剂的迅速降解。这样,对缓蚀剂性能的要求就更高了。目前,国内生产的缓蚀剂品种,在上述条件下都达不到使用要求,需要研制一种能在高温、高浓度盐酸条件下满足使用要求的缓蚀剂新品种。适用于150℃,28—30％高浓度盐酸酸
Preface In recent years, high concentrations of hydrochloric acid corrosion inhibitors used at 150 ° C or higher have been required for oil and gas well acidification due to the widespread use of high-concentration hydrochloric acid (28%) and the emergence of ultra-deep wells. However, the high concentration of hydrochloric acid, especially at high temperature, not only increases the reaction rate between the acid and the metal, but also often leads to the destruction of the acid solution or the rapid degradation of the organic corrosion inhibitor. In this way, the performance requirements of the corrosion inhibitor is even higher. At present, the domestic production of corrosion inhibitor varieties, under the above conditions are not meet the requirements, the need to develop a high temperature, high concentration of hydrochloric acid to meet the requirements of the use of corrosion inhibitors of new varieties. For 150 ℃, 28-30% high concentration of hydrochloric acid