新型表面活性剂作为油气田酸化缓蚀剂的制备及其性能研究  

Performance of Two New Surfactants as Acidizing Inhibitors for Oil and Gas Fields

作　　者：王鼎立 李勇明[1] 蒋立明 陈波[1] 骆昂 WANG Dingli;LI Yongming;JIANG Liming;CHEN Bo;LUO Ang(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University;Chengdu 610500,China 2 Heavy Oil Development Company,Xinjiang Oilfield Company,Karamay 834000,China)

机构地区：[1]西南石油大学,油气藏地质及开发工程国家重点实验室,成都610500 [2]重油开发公司新疆油田公司,克拉玛依834000

出　　处：《中国腐蚀与防护学报》2021年第4期542-548,共7页Journal of Chinese Society For Corrosion and Protection

基　　金：国家自然科学基金(U19A2043)。

摘　　要：利用芥酸和油酸两种绿色原材料合成了新型的表面活性剂缓蚀剂,并对两种缓蚀剂在15%(质量分数)盐酸溶液中进行了一系列性能测试。结果表明,两种缓蚀剂在90℃条件下具有良好的缓蚀效果,可以作为油气田酸化有效的缓蚀剂;通过电化学测试从电化学机理上揭示了缓蚀剂的性能;通过扫描Kelvin探针(SKP)和扫描电子显微镜(SEM)从表面形貌角度研究了其微观腐蚀情况,相比于空白组,实验组表面形貌保持较好的状态,说明两种缓蚀剂具有良好的效果;最后通过量子化学计算,从分子计算角度证实合成的缓蚀剂具有有效的作用,同时也展示出实验和理论结果的相关性。In view of the high toxicity and high cost of the current corrosion inhibitors, a new type of surfactant corrosion inhibitor was synthesized using two green raw materials of erucic acid and oleic acid,and the performance of the two corrosion inhibitors for P110 steel in 15%(mass fraction) hydrochloric acid solution were assessed by means of mass loss measurement, electrochemical measurement, Scanning Kelvin probe(SKP) and scanning electron microscope(SEM). Results show that the two corrosion inhibitors have good corrosion inhibition effects at 90 ℃ and can be used as effective corrosion inhibitors for oil and gas field acidification. In comparison with the P110 steel tested in the blank 15%HCl solution,the surface morphology of the same steel tested in the 15%HCl solution with addition of the two corrosion inhibitors maintained a better state, indicating that the two corrosion inhibitors had a good effect. Finally,through quantum chemical calculation, the synthetic corrosion inhibitor has been proved to be effective from the perspective of molecular calculation, and the correlation between experimental and theoretical results has also been demonstrated.

关 键 词：缓蚀剂 电化学 表面活性剂 酸溶液 

分 类 号：TG174[金属学及工艺—金属表面处理]