| 地层水含盐量对岩心孔隙度和渗透率的影响 |
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| 引用本文： | 郭云尧,孙士孝.地层水含盐量对岩心孔隙度和渗透率的影响[J].中国石油大学学报(自然科学版),1989(5). |
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| 作者姓名： | 郭云尧 孙士孝 |
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| 作者单位： | 石油大学开发系
(郭云尧)，石油大学开发系(孙士孝) |
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| 摘 要： | 储层岩心试验表明,当地层水中含有不同浓度的盐及残余水饱和度为30％左右时,对实验室测定岩心气体渗透率有较大影响。随着盐浓度的增大,对渗透率的影响明显增大。当盐水浓度为2.5％(2500ppm)时,对气体渗透率的测定结果没有影响;在盐水浓度为2.5～25％的范围内,对孔隙度的实验室测定基本没有影响。
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| 关 键 词： | 地层水 含盐量 孔隙度 渗透率 岩心 试验 |
THE INFLUENCE OF FORMATION WATER SALINITY ON CORE POROSITY AND PERMEABILITY |
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| Guo Yunyao Sun Shixiao.THE INFLUENCE OF FORMATION WATER SALINITY ON CORE POROSITY AND PERMEABILITY[J].Journal of China University of Petroleum,1989(5). |
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| Authors: | Guo Yunyao Sun Shixiao |
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| Institution: | Dept. of Petroleum Engineering |
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| Abstract: | This paper studies the influence of formation water salinity on eore porosity and permeability. The laboratory experiment with core from reservoir formation shows that the salinity of formation water has a large in-flucce on the measured gas permeability of the core, when residual, water saturation is approximately 30%. As the salinity increased, the influence on permeabilty become apparent larger. When the salinity is 2.5%, it has no influence on the hieasured gas permeability. When salinity is in range of 2.5-25%, it has no influence on porosity measured in lab. |
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| Keywords: | Formation water Salinity Porosity Permeability Core Experiment |
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