Identification of the low resistivity reservoir and its distributionin Subei Basin

Key words:  Subei Basin  low resistivity reservoir  artificial nerve network method  integration of geology method

Abstract:

The low resistivity reservoir in Subei Basin was qualitative and quantitative identified by using intersection grap method，artificial nerve network method and integration of geology method. And the distribution of the low resistivity reservoir was studied on the basis of taking the reservoir sand as the minimum drafting unit and emphasizing the structural factors. The results indicate that the low resistivity reservoir mainly distributed in Shawa structure belt of Gaoyou depression，and the Bi-andong Oilfield and Minqiao Oilfield of Jinhu depression in Subei Basin. Especially the reservoir distributed in layers of E,f31'3-E) f31-6. The low resistivity reservoir of Subei Basin mainly distributed in sand sheet miscrofacies of delta front, top thin sand of positive rhythm and lower thin sand of inverted rhythm. On the basis of the founded reservoir，new reservoirs are identified，the thickness and area of reservoir are enlarged，and the oil region is increased- The outcome of the research purchases preferable economic benefit for the Subei Basin.