深盆气藏概念的提出和成藏机理研究的突破 ,尤其是这类气藏通常所蕴聚的巨大天然气储量 ,引起了中外地质学家的广泛关注。深盆气藏是一类在成藏机制、成因类型和分布规律上甚为特殊的非常规类型。深盆气藏的形成以低孔、低渗性致密储层的存在为发育条件 ,以流体倒置和异常地层压力分布为表现特征 ,在平面和剖面上表现出了一系列特殊性。本文对深盆气藏的基本特征进行了讨论 ,期望对我国的深盆气藏勘探和研究提供参考依据 The breakthrough of the concept of deep-basin gas reservoirs and the study of hydrocarbon accumulation mechanism, especially the huge natural gas reserves that such gas reservoirs commonly accumulate, have drawn widespread attention of Chinese and foreign geologists. Deep basin gas reservoirs are a kind of unconventional types that are very special in hydrocarbon accumulation mechanism, genetic type and distribution. The formation of deep-basin gas reservoirs is characterized by the presence of low-porosity and low-permeability tight reservoirs, fluid inversion and abnormal formation pressure distribution, and shows a series of particularities in plane and section. This paper discusses the basic characteristics of deep basin gas reservoirs and hopes to provide reference for the exploration and study of deep basin gas reservoirs in China