摘要
1.Objective The study area is located in the north of Jianshi area, Hubei province.According to the geologic survey,the Silurian black shale in the area is characterized by high abundance of organic matter and high hydrocarbon potential.From 1980s,Jianghan Oilfield has drilled 7 wells in Jiannan gas field located in the south of study area,which showed different degree of oil and gas and revealed a good exploration prospect for the Silurian strata.