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中深层油藏注CO2吞吐可行性模拟研究

刘建仪,李牧, 何静意,唐登济

Drilling & Production Technology（2018）

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Abstract
针对冀东油田中深层油藏地质特征和流体性质,应用数值模拟技术,对比分析影响中深层油藏注CO2吞吐效果的油藏特征参数,提出了中深层油藏注CO2吞吐的适宜条件.研究表明,对比浅层油藏,中深层表现出渗透率低、地层压力高、原油气油比高、饱和压力高、黏度低的特点;中深层油藏注CO2吞吐的适宜条件应满足:地层压力适度高于泡点压力,但不高于混相压力,应采取适度非混相吞吐;剩余油饱和度不低于40%,渗透率高,有利于进行CO2吞吐.
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