一种高效复合型气体水合物抑制剂的研究

在油气运输管道中,气体水合物的形成会造成管道堵塞,给油气行业带来巨大的损失。为了抑制水合物的形成,文章以二氧化碳水合物为实验对象,在低温高压带视镜悬浮搅拌试验装置中,分别采用聚乙烯吡咯烷酮(PVP),氯化钠以及这两者的复合液作为抑制剂进行实验。通过诱导时间和气体耗气量的比较,结果表明,单一的PVP能有效的延长气体水合物生成的诱导时间,单一的氯化钠能降低反应体系的耗气量,而由PVP与氯化钠复配得到的复合型抑制剂能延长反应的诱导时间和降低反应耗气量,是一种高效的气体水合物抑制剂。

Study on a Kind of Effective Compound Inhibitor of Gas Hydrate

Gas hydrate may form plugs in oil/gas pipelines and cause remarkable loss for oil/gas industry.For preventing gas hydrates from plugs,in the paper,with low-temperaure high-pressure agitating testing system,aiming to the carbon dioxide hydrate,polyvinyllpyrro-lidone(PVP),sodium chloride,PVP and sodium chloride mixture were selected as inhibitor for experimentation.The results showed that: single PVP could increase the induction time of carbon dioxide gas hydrate formation;single sodium chloride could reduce the rate of gas consumption;PVP and sodium chloride mixture could increase the induction time of carbon dioxide gas hydrate formation and reduce the rate of gas consumption,which was a kind of effective inhibitor of gas hydrate.