沉积物中水合物形成机理及分解动力学研究进展

摘要

The study on the formation of gas hydrate in sediments is mainly summarized.Firstly, the formation mechanism and advances in bulk gas hydrate study, including nucleation mechanism, armor effect and memory effect etc., are briefly described.Secondly, the difficulty and advances in the formation of gas hydrate with low-solubility gases, such as methane, and the effects of chief factors, such as pore size, on the formation of gas hydrate in sediments are summarized.Thirdly, the major mathematical models on the kinetics of gas hydrate formation are presented.Finally, several issues to be further studied are highlighted.%对沉积物中水合物形成机理的研究进展作了述评.简述了纯水含物生成的机理及研究进展,包括成核机理、铠甲效应、记忆效戍等现象和机理;阐述了低可溶气体如甲烷生成水合物的难点,以及主要因素如孔隙尺寸对沉积物中水合物生成的影响研究进展;简要介绍了目前关于水合物形成和分解动力学的代表性数学模型;并对今后的研究方向进行了阐述.