Research on aqueous forecast model of fractured-vuggy reservoirs in Tahe oilfield

Tahe oilfield is of large-scale development of fractured-vuggy reservoirs with large scale fractures and vugs.The internal oil-water flow has far exceeded the scope of seepage,and the oil-water flow distribution is less prone to reflect regular changes,and therefore,the oil-water relationship of oil wells is complex and very easily affected by external factors.By use of cluster analysis of multiple factors that influence water drive characteristics,the curves have been classified. There are many factors affecting the water change,by using the dimensional analysis of a number of factors to extract the main factor,and then using the main factor for cumulative production water regression analysis to predict models.The prediction results show that the established prediction model with this method can better forecast and analyze the production data.