Abstract: To obtain continuous stratigraphic sedimentation sections of Silurian Kepingtage formation in Tazhong area, TarimBasin, a multi-mineral model is established using the data of thin section identification and X-ray diffraction analysis. Quasi-Newton method is used to process the 8 logging curves and mineral components of clastic rocks, pore fluid content and the corresponding theoretical calculated logging curves are gained in the study area. Verification of the theoretical calculated curves by means of confidence interval method and objective function value method shows that the relative error between theoretical and actual logging curves averages 7.88%; analyses on thin section identification and X-ray diffraction data show that the mineral component contents obtained from the optimal logging interpretation match well with that from practical analysis data. The calculated results can provide quantitative data for detailed lithology classification, oil and water layer identification, depositional environment analysis and diagenesis study