Both compositional and textural maturities of the sandstone are low, whereas such reservoir features as porosity and permeability are generally high.
岩石的成分成熟度和结构成熟度普遍低，而储层物性通常却很好。
In Kuche area, the sandstone reservoir is characterized by low porosity, low permeability and high pressure, and pore texture is complex, so, it is very difficult for reservoir log evaluation.
库车地区砂岩储层以高压低孔隙度低渗透率为显著特征，且储层结构复杂，给储层测井评价带来很大困难。
Upper Paleozoic natural gas reservoir of Ordos Basin consists of low-permeability sandstone which bears typical secondary porosity.
鄂尔多斯盆地上古生界天然气储集体是一套以次生孔隙为主的低渗透砂岩。
It is found that the oil effective permeability of low middle porous sandstone is related with the porosity, water saturation and shale volume of formation.
研究发现，油的有效渗透率与中低孔隙性储层的孔隙度、含水饱和度及泥质含量有关。
The Upper Paleozoic gas reservoirs in E' er-duosi Basin belong in the typical low-porosity and low-permeability sandstone reservoirs.
鄂尔多斯盆地上古生界气藏属于典型的低孔隙、低渗透性砂岩气藏。
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 reservoirs are low porosity and low permeability sandstone and conglomeratic sandstone reservoirs.
储层类型属低孔低渗砂岩和砂砾岩；
Shanshan oilfield is a typical anisotropic sandstone reservoir with low permeability, low porosity and low pressure.
鄯善油田属于典型的低渗、低孔、低压非均质砂岩油藏。
The sandstone reservoir of this area is characterized by medium porosity and low permeability.
本区砂岩储集层具有中孔低渗特点。
The result shows that T3X2 reservoir is compacted sandstone with low permeability and porosity, which can give some Suggestions to exploration and protection on such kind of reservoir.
结果表明，川西北地区须二段储层为致密性砂岩，呈低空低渗，孔隙间连通性差。该研究结果为该段储层的开发利用和保护提供参考。
The result shows that T3X2 reservoir is compacted sandstone with low permeability and porosity, which can give some Suggestions to exploration and protection on such kind of reservoir.
结果表明，川西北地区须二段储层为致密性砂岩，呈低空低渗，孔隙间连通性差。该研究结果为该段储层的开发利用和保护提供参考。
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