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通过聚合物及泡沫在石英砂模型中形成的封堵能力比较、聚合物与泡沫体系驱油能力比较及聚合物驱后泡沫驱油试验 ,证明泡沫驱在多孔介质中具有良好的封堵调剖能力 ,并且在油藏中能够选择性封堵高渗层 ,对于聚合物驱后未能波及的低渗层具有良好的驱油能力 ,是聚合物驱后一种行之有效的方法
By comparing the plugging ability of polymer and foam formed in quartz sand model, comparing the displacement capability of polymer with foam system and the foam flooding test after polymer flooding, it is proved that foam flooding has a good plugging profile in porous media Ability, and can selectively block the high permeability layer in the reservoir, which has good oil displacement capability for the low permeability layer that can not be affected after the polymer flooding, and is an effective method after polymer flooding