油层水淹实验测量及水淹机理研究  

Experimental Study on Reservoir Water Flooding Measurement and Water Flooding Mechanism

作　　者：王凤启 陈海峰[1] 

机构地区：[1]东北石油大学非常规油气成藏与开发省部共建重点实验室,黑龙江大庆163318

出　　处：《当代化工》2016年第8期1704-1707,共4页Contemporary Chemical Industry

基　　金：生油阶段湖相泥页岩孔隙演化特征及其与页岩油富集关系;项目号:41402110

摘　　要：随着油田逐渐进入高水淹阶段,迫切需要进行岩心样品的水淹实验测量和水淹机理研究。从油驱水、水驱油和油水混驱三个过程进行室内驱替实验。研究束缚水饱和度与孔隙度、渗透率之间的关系;采用多元素回归分析的方法进行拟合,准确得到含水饱和度与产水率、电阻率之间的关系;分析岩电数据。实验结果表明,渗透率对岩心束缚水饱和度影响较大;含水饱和度与产水率、电阻率高度线性相关,可通过回归方程测量水淹程度;孔隙度相近,渗透率差别较大的岩心可以具有相近的地层因素;相同孔隙度岩心的束缚水饱和度大小与m值并无相关性。As the oilfield gradually steps into the stage of high water flooding, research on reservoir water flooding measurement and water flooding mechanism is urgently needed. The indoor displacement experiments were carried out from three processes of oil displacing water, water driving oil and mixed oil-water displacing. The relationship of irreducible water saturation with porosity and permeability was studied; using the method of multi-element regression analysis to fit, the relationship of water saturation with producing water ratio and resistivity was obtained; electrical data were analyzed. The results show that the permeability has great influence on irreducible water saturation; water saturation has linear correlation with water production rate and the resistivity of highly;water flooded degree can be measured by regression equation; the cores of similar porosity and different permeability can have very similar formation factors. There is no correlation between the irreducible water saturation and m value for the same porosity core samples.

关 键 词：驱替实验 含水饱和度 地层因素 胶结指数 

分 类 号：P631[天文地球—地质矿产勘探]