天然气水合物含油气系统研究现状与展望`

运用天然气水合物含油气系统理论,对天然气形成、分解这一复杂动态物理化学过程的研究进展进行了论述,分析了天然气水合物含油气系统的研究进展、存在问题和发展趋势,得到以下结论:大多数天然气水合物气源与生物降解密切相关;影响天然气水合物温度-压力临界曲线的主要因素为天然气、孔隙水的组分,地温梯度和冻土厚度不改变天然气水合物温度-压力临界曲线;天然气水合物含油气系统关键时刻的静态要素和动态过程以及两者之间的耦合关系在天然气水合物含油气系统中起重要作用。天然气水合物含油气系统研究不仅为天然气水合物成藏过程提供了理论依据,也为天然气水合物的勘探开发提供技术支持。

Research Status and Prospect of Natural Gas Hydrate Petroleum System

The theory of the natural gas hydrate petroleum system is applied to discusses the progress of research on the complex dynamic physicochemical process of natural gas formation and decomposition,the research progress,problems and development trend of the natural gas hydrate petroleum system are analyzed,and the following conclusions are obtained:most natural gas hydrate gas sources are closely related to the biodegradation; the main factors affecting the temperature-pressure critical curve of the natural gas hydrate are the components of natural gas and pore water,while the ground temperature gradient and permafrost thickness do not change the gas hydrate temperature-pressure critical curve; the static elements and dynamic processes at critical moments of the gas hydrate petroleum system and the coupling relationship between them play an important role in the gas hydrate petroleum system.The study of the gas hydrate petroleum system not only provides a theoretical basis for the process of gas hydrate accumulation,but also provides technical support for the exploration and development of gas hydrate.