For the cores with different permeability, its water plugging rate was higher than 85%, oil plugging rate was lower than 20%, and-selectivity was good.
对不同渗透率的岩芯,堵水剂的堵水率大于85%,堵油率小于20%,具有良好的选择性。
The experiments showed that the block rate of water could reach over 90%. on the other hand, the block rate of oil was less 30%, which demonstrated excellent plugging ability.
实验得出该体系对于水的封堵率可达到90%以上,而对于油的封堵率仅为30%左右,具有较强的选择性封堵能力。
Laboratory test shows that core plugging rate by using the agent is over 90%, recovered rate of permeability is over 85% after washing with water for a long period of time.
室内实验表明,该堵剂可使岩心堵塞率达到90%以上,用地层水长时间冲刷后,渗透率恢复值在85%以上。
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