气体水合物基础特性研究进展

气体水合物的结构类型、热力学与动力学、界面现象与表面形貌特征等基础特性是水合物研究的重要基础，也是水合物学科发展的基石。此外，水合物在沉积物中的微观赋存形态及其对渗流的影响也是水合物的基础特性之一，是水合物储层研究的热点。笔者主要基于近3年来的文献资料，对气体水合物的结构类型、热力学与动力学、界面现象、微观赋存形态及其对渗流的影响这4个方面的研究进行了梳理与归纳，追踪学科研究前沿，较为全面地阐述了国内外气体水合物相关研究的最新进展，也提出了气体水合物基础特性研究下一步的方向与趋势，以期为多尺度、多维度研究气体水合物的基础理论与科学问题提供借鉴。

RESEARCH PROGRESS IN BASIC CHARACTERISTICS OF GAS HYDRATE

The basic characteristics of gas hydrate, such as its structure type, thermodynamics, dynamics, interface process and surface morphology, are the major topics in gas hydrate research, which founded the cornerstone for the development of the science of natural gas hydrate. In addition, the micro-distribution of gas hydrate in sediments, as the research focus of hydrate reservoir, and its influence on gas seepage are also the basic characteristics of gas hydrate. Based on the published literatures in the past three years, the latest progress in the structural type, thermodynamics and dynamics, interface process, micro-distribution of gas hydrate and its influence on seepage characters are summarized in this paper, aiming to track the frontier of the discipline and comprehensively expounds the latest progress in the related research fields of gas hydrate both at home and abroad. Meanwhile, future direction and trend of the study on basic characteristics of gas hydrate are discussed in this paper, so as to provide a reference for multi-scale and multi-dimensional research on the basic theory of gas hydrate.