摘要
采用测定油水界面张力、防膨率和驱油率的方法,筛选出合适的防膨剂和驱油剂体系,并对防膨剂与驱油剂进行了配伍性研究。结果表明,防膨剂与驱油剂具有较好的配伍性,水溶性好,且防膨剂和驱油剂可随注入水同时注入地层,防膨率在80%以上,界面张力达超低,水驱后转注0.3PV 防膨剂/驱油剂复配体系,驱油率增幅达12%以上。
Using the methods of measuring oil - water interfacial tension, anti - swelling rate and oil - displacing rate, the appropriate anti - swelling agents and oil - displacing agent systems were selected. Compatibility of the anti - swelling agents and the oil - diplacing agents were studied. The results showed that this two agents had good compatibility and good water solubility. The anti - swelling rate was higher than 80% and oil - water interfacial tension reached ultralow level when the anti - swelling agent and the oil - displacing agent were injected into stratum with injection water at same time. The oil - displacing rate increased over 12% when injecting 0. 3 PV anti - swelling agent and oil - displacing agent combined system after water flooding.
出处
《精细石油化工进展》
CAS
2008年第10期11-14,17,共5页
Advances in Fine Petrochemicals
