Abstract: Aiming at the scattered distribution of the remaining oil in high water cut period of Liuchu oilfield,guided by sedimentary theory,a single sand body tracking mode is set,which defined the geological studies unit to the single sand body.The internal analysis of compound sand body identified single channel sand body,revealing the relationship between connected sand bodies,which provides reliable geological basis for further analysis on oil water distribution,the remaining oil enrichment zone and the development.We use the research results to develop targeted control measures,and achieves good results,which has a certain significance for the same kind of fine reservoir research and development.