马兴芹;刘岳龙;张永刚;符伟兵;

• 1:中国石化东北油气分公司科技处

• 2:中国石化华北分公司工程技术研究院

摘要(Abstract)：

鄂尔多斯盆地南部红河油田长8油藏为典型的致密双重介质储层,注水采油时出现沿裂缝水窜现象,导致开发效果变差.为有效补充地层能量、提高采收率,开展红河油田长8储层空气泡沫驱实验.通过空气原油氧化实验,确定红河油田原油与空气在地层条件下可以发生低温氧化反应,反应速率为(0.025~0.110)×10-5 mol(O2)/(h·g)(oil);通过泡沫体系优选实验,优选阻力因子高、封堵能力强、可有效封堵储层裂缝的泡沫体系;通过长岩心空气泡沫驱油实验,认为空气泡沫驱的采收率比水驱的提高15%以上,气体突破时产出气体中O2的体积分数为1.34%~3.81%,满足空气驱的安全范围.结果表明:空气泡沫驱综合泡沫驱与空气驱的稳定、耐温、耐油和较强封堵能力等优点,在红河油田具有较好适用性,为红河油田提高采收率提供技术储备.

关键词(KeyWords)：驱油;空气;泡沫;提高采收率;红河油田

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011ZX05005-006-008HZ)

作者(Author):马兴芹;刘岳龙;张永刚;符伟兵;

Email:

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