中文摘要：

针对天然气水合物的形成条件、分布规律、成藏过程与成藏模式等热点问题,介绍了＂天然气水合物油气系统＂概念,综述分析其主要构成要素——气源、水合物稳定带、储集层、水源、运聚通道、时间等的内涵,总结归纳了地质构造条件、沉积条件和地理气候环境变化等三大影响水合物富集成藏的控制因素,在此基础上,结合昆仑山垭口盆地多年冻土区天然气水合物成藏实例分析探讨了＂天然气水合物油气系统＂的研究方法,认为基于地质背景研究分析诸多静态成藏要素,如何在时间与空间上耦合匹配是解剖天然气水合物成藏过程和评价天然气水合物成藏潜力的关键。

英文摘要：

According to the hot topics of the natural gas hydrate distribution regularity,formation conditions,accumulation process and accumulation pattern,gas hydrates reservoir forming conditions including gas source,gas hydrate stability zone,reservoir stratum,water source and migration passage were summarized by literature review first. Then,three main factors,geological structure condition,sedimentary condition and geographical climate change were summarized and analyzed,which control the accumulation and distribution of gas hydrates. On basis of this,basic concepts and research methods of natural gas hydrate petroleum system were analyzed and discussed by the example of gas hydrate accumulation conditions and process in permafrost regions of Kunlun mountain pass. The results show that the key of studying gas hydrate accumulation process and evaluating gas hydrate reservoir forming potential is analyzing how the static accumulation elements couple and match in geological time and space.