The Research On Tectonic Style And Reservoir Prediction In Fault-Block Oil And Gas Field In Sangtamu

After 20 years' exploration and exploitation,oil and gas in triassic,carboniferous,and ordovicia system have been found in Sangtamu oilfield.Among these the ordovicia system has been the main reservoir in Sangtamu oilfield until now.As refinement of exploration in recent years,the oil field has stepped into the stage of “two low and one high”,which is low speed of oil production,low recovery degree,and high water containing.What's more,facing with complex fault block,large bottom water,complex reservoir characteristic,and some other problems,production adjustment is difficult.So,it is necessary to combine analysis of tectonic style with precise reservoir prediction for highly effective development.This paper is based on the understanding of the tectonic evolution.By analyzing of tectonic style in the study area to clarify the mechanics mechanism,and finally carry on the fine structure interpretation.What's more,according to the reservoir characteristic and the unfold character of sandstone,by combining flat profile analysis to predict favorable areas,finally a set of effective reservoir prediction methods are summarized.The research in this paper can not only provide a scientific basis for oil and gas exploration and exploitation,but provide experience and method for the exploration of other objective layers.