气驱过程中气体流度控制的几种特殊方法

Several Special Methods of Mobility Control in the Process of Gas Flooding

王维波 康宵瑜 申哲娜 洪 玲 王前荣 田宗武

WANG Weibo KANG Xiaoyu SHEN Zhena HONG Ling WANG Qianrong TIAN Zongwu

气驱过程中气体流度比的大小直接影响着驱替相的波及系数和原油采收率。气驱流度控制的特殊方法有稠化增黏的超临界 CO2体系、 气溶性表面活性剂、 超临界 CO2乳状液、 水-气分散体系和微米泡沫 （气泡）。介绍了这 5种方法的控制机理和研究进展， 分析了每种方法的特点， 对相关研究方向和应用前景进行了展望， 以期为气驱流度控制的相关研究提供参考和借鉴。参50

The size of gas flow ratio in drive process directly affected the sweep efficiency of sweeping phase and oil recovery. The special methods，which could control mobility in the process of gas flooding，included the thickening and tackifying supercritical CO2 system，gas-soluble surfactant，emulsion of supercritical CO2，water-gas dispersion system and micro-foam（bubble） . The control mechanism and research progress of the five methods were introduced，and the characteristic of each method was analyzed. The related research direction and application prospects were discussed，which might provide reference for the related research of mobility control of gas flooding.

10.19346./j.cnki.1000-4092.2017.03.035