摘要
In F formation of Daqing placanticline, the analysis result of reservoir characters showed that the formation had low porosity,low permeability,high shale content,more microscopic capillary pore and high irreducible water saturation. Indonesia saturation equation,once applied in reservoirs with fresh water and high shale content,is considered to be improved.Compared with well test results and core analysis water saturation in sealed coring well,the results show that the new saturation equation can be applied in evaluation of low porosity and permeability shaly sand reservoirs in F formation with good precision quantitatively.