利用国产露头砂岩岩心，研究了亲水条件下，无机盐对岩心采用表面活性剂溶液进行自发渗吸驱油的规律和采收率的影响。
The effect of inorganic salt on spontaneous imbibition and recovery factor of surfactant flooding has been studied under water-wet condition with outcrop sandstone cores.
该防砂剂吸附于岩石表面使得岩石表面的润湿性向亲水方向变化，导致岩心的油相渗透率增加和水相渗透率减小，说明该防砂剂不但具有防砂作用还具有堵水功能。
The pictures of core scanning by electron microscope indicate that there are good porosity and connectivity in the consolidated core. This sand control agent adheres to rock surf…
该防砂剂吸附于岩石表面使得岩石表面的润湿性向亲水方向变化，导致岩心的油相渗透率增加和水相渗透率减小，说明该防砂剂不但具有防砂作用还具有堵水功能。
The pictures of core scanning by electron microscope indicate that there are good porosity and connectivity in the consolidated core. This sand control agent adheres to rock surf…
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