Abstract: In the development process of oilfields,especially during a period of water flooding stage,the underground fluid dis-tribution and the state have undergone great changes.In order to find this law as well as the development plan made adjustments to provide the basis for dynamic development,therefore,a timely grasp of the situation is of great significance.This paper uses tracer monitoring technology and comprehensive reservoir engineering methods to make research on the relations of many kinds of dynamic develop-ment data and evaluate the development effect according to the dynamic and static documents of Hutugou oilfield.During research,based on analysis of the changes of the development of indicators,the residual oil saturation distribution is studied through numerical simulation.