表面活性剂对水合物生成的影响及其应用前景

EFFECT OF SURFACTANT ON HYDRATE FORMATION AND ITS APPLIED PROSPECTS

赋存于海底与极地冻土带沉积物孔隙中的天然气水合物 ,具有能量密度高、分布广泛、规模巨大、埋深较浅、成藏物化条件好等特点 ,被认为是 2 1世纪潜力巨大的化石燃料的替代资源 ,引起了世界各国的高度重视。文章综合了各国近年的研究成果 ,概述了表面活性剂对天然气水合物生成的影响。一方面可以用表面活性剂来抑制油气运输管线中水合物的生成 ;另一方面也可用它来提高水合物的生成速率 ,使其在环保、石油天然气、化工、生物等很多领域具有广泛的应用前景。文章最后针对我国目前的情况 。

The natural gas hydrate,occurring to s ea flow and polar tundra,is of the properties as high energy density,wide distri bution,grand size,shallow burial and good physiochemical reservoir formation con ditions,etc.,and is regarded as the substitute resources of fossil fuels having great potentialities in the 21st century,which has brought about all the nation s' attention in the world.On the basis of summarizing the research achievements of every country in recent years,the effect of surfactant on gas hydrate formati on is expounded in the paper.On the one hand the hydrate formation in oil & gas pipeline may be inhibited with the surfactant,and on the other hand the hydrate growth rate may be raised by use of it.Therefore it possesses a vast range of a pplied prospects in many domains,as environmental protection,oil and gas industr y,chemical industry and biology,etc.Finally,in light of the existing circumstanc es in China,the research trend of hydrate in the future is also proposed in the paper.