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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。
In view of the formation conditions, distribution law, process of accumulation and accumulation pattern of gas hydrate, the concept of “natural gas hydrate system” was introduced. The main components of gas hydrate - gas source, hydrate stability zone , The reservoir, the water source, the channel for transport and accumulation, the time and so on. The paper summarized the controlling factors of the three major influencing factors on the accumulation and accumulation of hydrate, such as geological conditions, sedimentary conditions and geo-climatic and environmental changes. On this basis, Analysis of gas hydrate accumulation in permafrost zone in the Yaokou basin The research method of gas hydrate system in gas hydrate system is discussed. It is considered that based on the study of geological background, many static reservoir elements are analyzed, and how the coupling match in time and space is Key to Dissecting Gas Hydrate Accumulation and Evaluating Gas Reservoir Hydrocarbon Accumulation Potential.