Abstract: Daqingoil fields has been developed for many years and for the most part has experienced well pattern thickening and pattern modification for many times and in part areas has developed by injecting water, polymer and chemical flooding,now many oil fields comeinto high-cut stage, the distribution of remaining oil is very scattered and developing is too difficult,in order to exploit this part oil we have do manyscientific researchand have accumulated some experience and basic approach,all this is helpful for the same kind oil field’s exploitation.