This paper primarily discusses the changeable features of the process through the modelling experiment of secondary migration using the reservoir sandstone with ultra-low porosity and permeability.
石油二次运移是一个复杂的地质过程，本文通过利用饱和地层水的低孔低渗储层砂岩来进行石油二次运移模拟实验，初步研究了此过程的变化特征。
The results indicate that throat type in an extra-ultra low permeability sandstone reservoir is versatile and minute.
研究结果表明，特低-超低渗透砂岩储层喉道类型多样；
The results indicate that throat type in an extra-ultra low permeability sandstone reservoir is versatile and minute.
研究结果表明，特低-超低渗透砂岩储层喉道类型多样；
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