Identifying sedimentary facies based on log data is one of the important and desiderated problems in oil field exploration and development.Microfacies characteristics are reflected from log data.Some features described the microfacies changes based on the combination of conventional logging data,the geological interpretation results and core data are extracted by the principal component analysis(PCA) and independent component analysis(ICA).Quantitative identification model of microfacies based on support ve...