CAJ | 학술논문

采用电化学腐蚀法测试咪唑啉类IMC-80-BH、有机胺类ZK682和有机磷类N582的缓蚀剂在常温下饱和CO2油田采出液对P110钢的缓蚀行为,用高温高压反应釜借助失重法和腐蚀形貌观察研究了其在高温(80℃)时的缓蚀性能.结果表明:3种缓蚀剂均为阳极抑制型,作用方式为“负催化效应”;3种缓蚀剂均存在浓度极值现象,吸附膜稳定程度随浓度变化差别较大;在油田真实高温高压条件下,有机胺缓蚀剂ZK682缓蚀性能最优.
채용전화학부식법측시미서람류IMC-80-BH、유궤알류ZK682화유궤린류N582적완식제재상온하포화CO2유전채출액대P110강적완식행위,용고온고압반응부차조실중법화부식형모관찰연구료기재고온(80℃)시적완식성능.결과표명:3충완식제균위양겁억제형,작용방식위“부최화효응”;3충완식제균존재농도겁치현상,흡부막은정정도수농도변화차별교대;재유전진실고온고압조건하,유궤알완식제ZK682완식성능최우.
The inhibition performances of three different inhibitors of Imidazoline IMC?80?BH,organic amine ZK682 and organic phosphorus N582 for P110 steel in the oilfield produced solution containing saturated CO2 were investigated by electrochemical corrosion methods. The inhibition behavior of three inhibitors for P110 steel under high temperature and pressure conditions was also analyzed by weight loss method and morphology analysis. The results show that the three inhibitors belong to the anodic inhibitors which work as‘negative catalysis effect’. There exists a critical value for each inhibitor,and stability of film varies with concentration. The inhibition efficiency of organic amine ZK682 is highest under the actural high temperature and pressure conditions.