Study On Distribution Law Of Remaining Oil Of High Water Cut Stage Meandering River Block

Currently Many oilfield has entered the late development, the most dynamic form of high water cut oil Wells, most middle and high permeability sandstone reservoir has entered a High water cut period, the underground complex oil-water relationship, Contradictions from the layers between the ro inside layer. In the case of such a high water cut, if the remaining oil exist, how to extract is one of the topics of people concern right now. At present, in view of the different sedimentary sand body distribution patterns of residual oil at the high water-cut stage of research there are still shortcomings, to a large extent restricted the high pace of the second-round development and study. Therefore, it is necessary for high water cut period to study the residual oil distribution regularity of different sedimentary sand body, provide powerful basis for reservoir development.In this paper, Re Hetai block as the the research object, we research geological architecture and remaining oil distribution pattern in the meandering 。Subject research is aimed at the actual situation of liaohe oilfield, meandering river three kinds of sedimentary microfacies, composite channel 、 single channel and point bar sand body, study the sedimentary microfacies, remaining oil distribution study. Through that meandering river plane phase transformation, vertical phase transformation, abandoned channel block and point bar sand body residual oil distribution regularity and the effect of residual oil distribution. On the basis of the sedimentary microfacies research, through it is concluded that the residual oil distribution law to guide the actual production, so this topic research has the very high practical value and guiding significance. Finally we establish the Re Hetai block meandering river geological model, and numerical simulation, to study of phase transformation, imperfect pattern dynamic impact on remaining oil distribution and production.