Because of complex pore structure in low permeability sandstone reservoir, it was quite difficult to identify oil or water layer and evaluate reservoir using normal methods.
低渗透砂岩油藏因其孔隙结构复杂，利用常规方法进行油水层识别和储层评价难度较大。
Some of the production Wells in Jianghan oil Region possess the geological features including low reservoir permeability, thin adjoining layer between water and oil layers, etc.
江汉油区部分油井具有油层渗透率低、油水层之间隔层薄等地质特点。
The effect of polymer solution on improvement of oil-displacement efficiency in high permeability layer is better than the effects in medium and low permeability layer.
聚合物溶液在模型高渗透层内提高驱油效率作用的效果要好于中、低渗透层。
Study of using CO2 stimulation process in Wei-5thin-layer heavy oil reservoir with medium-low permeability and complicated small fault block is conducted.
针对江苏油田韦5中低渗复杂小断块薄层稠油油藏进行CO2开采方式研究，为同类型稠油油藏利用CO2开采提供有益的借鉴。
Tazhong 16 of Tarim oil field as an example, a development method for the layer reservoir of mid -low permeability bottom water was introduced in the paper.
以塔里木油田的塔中16油田为例，介绍一种适合层状低渗边水油藏特点的开发模式。
Tazhong 16 of Tarim oil field as an example, a development method for the layer reservoir of mid -low permeability bottom water was introduced in the paper.
以塔里木油田的塔中16油田为例，介绍一种适合层状低渗边水油藏特点的开发模式。
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