A Study On Productivity Predication Of Southern Wangyao Region In Ansai Oilfeild

The core of constructive production scale study is well productivity predication, based on the analysis of the static and dynamic data of wells. Accurate predictions provide the fundamental basis for the development of reservoir. But in fact, the shortage of data of low-permeability oil field in development early stage and the factors of affecting the development effect of low-permeability oil field takes large difficulty to productivity predication in early stage.This paper puts Chang6reservoir of low-permeability oil deposit in South Wangyao Region as a study object. It carries out reservoir characteristics comprehensive research combined with analysis of well development performance and macroscopic heterogeneity, defines the lower limit of valid reservoir, and analyzes the impact of various parameters on the productivity of oil wells. Finally, it predicts the productivity distribution quantificationally of Chang6reservoir in South Wangyao Region and further predict the constructive production scale of development through application and contrast of a variety of methods.Chang6reservoir of South Wangyao Region is featured as low-porosity, low-permeability and heavy heterogeneity, and its well productivity predication is effected by various sorts of parameters. Based on the prediction results and distribution of sand, six potential areas with output above100thousand per year can be found.