低渗透油田注气开发的探讨

Discussion on gas injection development in lowpermeability oilfield.

介绍了低渗透油田注气开发的适用条件、注气方式和干气非混相驱开发的生产特征 ;阐述了在注气开发中 ,地层压力第一平稳阶段是注气开发的主要见效阶段 ;分析了注气开发和注水开发在流体突破前后的生产特点 ,并指出不论是注气开发还是注水开发 ,地层压力是影响油井产能的主要因素。

The conditions, types of gas injection development and production features of drygas immiscible flooding are introduced. It is set forth that first stable stage of formation pressure is the main response stage in gas injection development. The production features of gas injection and waterflooding before and after fluid breakthrough are analyzed. It is pointed out that the formation pressure is the major factor of influencing productivity of oil wells whether in gas injection development or in waterflood development.