Abstract: During the high water eut exploitation stage,a large amount of remaining oil will be left in the uper pant of a thick reservoiz with positive thgthmic sedimentation of Daqing oil field.When the gas injection was applied,it improves the developaneaat zesults.This paper studies the time of gas breakthrough and varying patterns of the gas and liquid ratio as well as the importance of the regine of the gas injection operation on the results of gas injecdons.A new conclusion and understanding obtained are sign ificant to the dynamic analysis of actual field gas injection test and the adjustment of gas injection programane for an optianal gas injection programme.

摘要： 利用黑油模型研究了厚油层注气驱替剩余油试验的见气时间及气液比变化规律,以及工作制度对注气效果的作用,得到的结论和认识.对指导矿场注气试验的动态分析和注气方案的调整以便获得最佳注气效果.