Current situation of remaining oil distribution in high water-cut stage

The steady production in the later developing period of high water-cut oilfield lies mainly in the deep under- standing and recognition of the distribution law of the re- maining oil.The research of the remaining oil distribution can be generally divided into three aspects:researching method,distribution law and influencing factors(or con- trolling factors).This paper has summed up its current situation and new progress at home and abroad and elabo- rated its development trend.