一、前言日本新潟地区在1929年本成寺R-1产气以来,发现了许多绿色凝灰岩油气储集层,其中见附、吉井—东柏崎等气田产量尤为高,可采量大,为日本的一级油气田。为此,该储集层需满足①有较好的孔隙度和渗透性;②有适当的厚度和分布范围等两个条件。评价这种储集层性质的方法是沉积岩石 I. Introduction Niigata Prefecture, Japan Many green tuff oil and gas reservoirs have been discovered since the R-1 gas was generated in the Bunung Monastery in 1929. Among them, see Appendix, especially in the gas fields of Yoshii-East Kashiwazaki such as Japan Level oil and gas fields. To this end, the reservoir must meet the ① better porosity and permeability; ② have the appropriate thickness and distribution of two conditions. The way to evaluate the nature of this reservoir is to deposit rocks