Characteristics and evaluation of density flow reservoirs in Dong Ying formation of Beipu area, eastern Hebei of China

摘要

By analyzing various geological phenomena of density flow reservoirs in Dongying Formation of Beipu area, eastern Hebei of China, reservoirs are considered to have many characteristics: low compositional and structural maturity, complex diagenesis changes bad pore structures, and their internal, interlayer and plane heterogeneity are severer. Using fuzzy mathematical method, reservoirs can be quantitatively evaluated and evaluation results show that reservoirs are medium to bad, and the reservoirs in fan host, B10 fault block and B28 fault block are relatively better.