摘要
针对某一类型孔渗特征的岩心单独进行驱油试验研究,是为了定量该类型岩心的孔渗特征和油水的渗流能力。当油藏层内或层间非均质较强时,室内试验采用不同渗透率岩样并联来反映非均质对水驱油的影响试验,结果更接近油藏中的实际渗流情形。为此通过组合模型的水驱油试验,评价了储层非均质性对水驱油最终采收率的影响。
In order to quantify the porosity and permeability properties and percolation capacity of oil and water of this kind of core, a study on oil displacement test is conduced for the cores with a certain porosity and permeability properties. Combining various core samples with different permeability reflects the impact of heterogeneity on water - drive oil when serious heterogeneous occur in in - layer and interlayer, the results are closer to actual percolation status. Therefore, through water - drive oil test of combined model, the influence of reservoir heterogeneity on ultimate recovery of water- drive oil is evaluated.
出处
《吐哈油气》
2009年第1期60-62,共3页
Tuha Oil & Gas
关键词
低渗透
非均质
组合模型
水驱油实验
采收率
low permeability
heterogeneity
combined modeling
water - drive oil test
recovery
