致密砂岩气藏储层研究的进展及趋势

Development and tendency of the research of tight sandstone gas reservoirs

致密砂岩气藏作为一种非常规油气资源现已成为我国重要的油气勘探领域。本文从储层岩石学、储集空间类型、致密砂岩储层成因机理及优质储层的形成机制等方面详细总结了近年来致密砂岩气藏储层的研究进展,并在此基础上指出,异常压力对致密储层成岩作用的影响、深部储层次生孔隙的形成与保存机制、成岩流体对优质储层形成的影响是这类储层今后的研究方向。

As a kind of unconventional natural gas resource, the tight sandstone reservoir has become a very important prospecting field in China. The paper summarizes the development of this kind of reservoir in recent years as respects of the petrological characteristics, the type of reservoir space, the origin of tight sandstone reservoir and the formation mechanism of favorable reservoir, and points out that the impact of the abnormal pressure on the diagenesis of tight reservoir, the origin and preservation mechanism of secondary pore in deep reservoir and the impact of the diagenetic fluid on the favorable reservoir formation will be the research directions in the future for this kind of reservoir.