A油田氮气泡沫调驱技术研究

摘要

为改善油田注水开发效果和提高采收率,进行了氮气泡沫调驱技术研究.室内对比4种起泡剂的性能,研究注入方式、气液比、质量分数及注入量对泡沫体系的阻力因子的影响.在A油田进行了现场试验,增油降水效果明显.%Study is conducted on the nitrogen foam profile control technology to improve the waterflooding development effect and enhance oil recovery in the oilfield Through indoor experiment,the performance of the four types of foaming agents are compared.The effect of injecting methods,gas-liquid ratio,the mass fraction and injection volume on the resistance factor of foam systems is studied. Pilot test is conducted in A Oilfield. Oil production increases remarkab2ly.1 and water decreases considerably.