氮气泡沫驱油用起泡剂的筛选与评价
Chemical Engineering of Oil & Gas（2011）
Abstract
针对靖安油田地层条件,对起泡剂的起泡能力和稳定性等进行分析,筛选出界面张力达到10-1mN/m的低界面张力泡沫体系.性能评价表明,该体系具有较好的起泡性、稳泡性和较强的耐温抗盐性.运用单管驱油实验对泡沫体系阻力因子进行了评价,确定最佳气液比为2:1；双管驱油实验表明,泡沫可以实现对高低渗填砂管的均匀分流,水驱后再注入此泡沫体系,综合采收率可以提高10.94％.
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Key words
foaming system,resisting force factor,heat resistance and salt toleranee,foamability
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